[lfs-patches] r3810 - trunk/texlive

ken at higgs.linuxfromscratch.org ken at higgs.linuxfromscratch.org
Tue Oct 9 07:42:31 PDT 2018


Author: ken
Date: Tue Oct  9 07:42:31 2018
New Revision: 3810

Log:
texlive 2018 : new version of upstream fixes, allows building with poppler-0.68.0 and 0.69.0, and addresses CVE-2018-17407 vulnerability in pdflatex, pdftex, dvips, luatex.

Added:
   trunk/texlive/texlive-20180414-source-upstream_fixes-2.patch

Added: trunk/texlive/texlive-20180414-source-upstream_fixes-2.patch
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ trunk/texlive/texlive-20180414-source-upstream_fixes-2.patch	Tue Oct  9 07:42:31 2018	(r3810)
@@ -0,0 +1,2561 @@
+Submitted By: Ken Moffat <ken at linuxfromscratch dot org>
+Date: 2018-10-08
+Initial Package Version: 20180414
+Upstream Status: Applied
+Origin: Upstream
+Description: Three fixes, cherry-picked from svn plus a CVE fix.
+
+r47469 Fix segfault in dvipdfm-x (XeTeX) on 1/2/4-bit transparent indexed PNGs.
+
+r47470 Support poppler-0.64.0 (this one is critical for current BLFS).
+
+r47477 Fix a ptex regression for discontinuous kinsoku table.
+
+Also, via fedora (I got lost in svn) a critical fix for CVE-2018-17407
+
+"A buffer overflow in the handling of Type 1 fonts allows arbitrary code
+execution when a malicious font is loaded by one of the vulnerable tools:
+pdflatex, pdftex, dvips, or luatex."
+
+Then add updated versions of pdftoepdf-newpoppler for poppler-0.68.0 and
+0.69.0 (this should cover all recent versions, and hopefully also covers
+older systems if people update to 2018 because of hte CVE).
+
+diff -Naur a/texk/dvipdfm-x/pngimage.c b/texk/dvipdfm-x/pngimage.c
+--- a/texk/dvipdfm-x/pngimage.c	2018-02-17 08:41:35.000000000 +0000
++++ b/texk/dvipdfm-x/pngimage.c	2018-10-09 01:52:01.648670875 +0100
+@@ -964,12 +964,16 @@
+   png_bytep   trans;
+   int         num_trans;
+   png_uint_32 i;
++  png_byte    bpc, mask, shift;
+ 
+   if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ||
+       !png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, NULL)) {
+     WARN("%s: PNG does not have valid tRNS chunk but tRNS is requested.", PNG_DEBUG_STR);
+     return NULL;
+   }
++  bpc   = png_get_bit_depth(png_ptr, info_ptr);
++  mask  = 0xff >> (8 - bpc);
++  shift = 8 - bpc;
+ 
+   smask = pdf_new_stream(STREAM_COMPRESS);
+   dict  = pdf_stream_dict(smask);
+@@ -981,7 +985,8 @@
+   pdf_add_dict(dict, pdf_new_name("ColorSpace"), pdf_new_name("DeviceGray"));
+   pdf_add_dict(dict, pdf_new_name("BitsPerComponent"), pdf_new_number(8));
+   for (i = 0; i < width*height; i++) {
+-    png_byte idx = image_data_ptr[i];
++    /* data is packed for 1/2/4 bpc formats, msb first */
++    png_byte idx = (image_data_ptr[bpc * i / 8] >> (shift - bpc * i % 8)) & mask;
+     smask_data_ptr[i] = (idx < num_trans) ? trans[idx] : 0xff;
+   }
+   pdf_add_stream(smask, (char *)smask_data_ptr, width*height);
+diff -Naur a/texk/dvipsk/writet1.c b/texk/dvipsk/writet1.c
+--- a/texk/dvipsk/writet1.c	2016-11-25 18:24:26.000000000 +0000
++++ b/texk/dvipsk/writet1.c	2018-10-09 01:52:01.648670875 +0100
+@@ -1449,7 +1449,9 @@
+         *(strend(t1_buf_array) - 1) = ' ';
+ 
+         t1_getline();
++        alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+         strcat(t1_buf_array, t1_line_array);
++        alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+         strcpy(t1_line_array, t1_buf_array);
+         t1_line_ptr = eol(t1_line_array);
+     }
+diff -Naur a/texk/web2c/luatexdir/font/writet1.w b/texk/web2c/luatexdir/font/writet1.w
+--- a/texk/web2c/luatexdir/font/writet1.w	2016-11-25 18:24:34.000000000 +0000
++++ b/texk/web2c/luatexdir/font/writet1.w	2018-10-09 01:52:01.648670875 +0100
+@@ -1625,7 +1625,9 @@
+     if (sscanf(p, "%i", &i) != 1) {
+         strcpy(t1_buf_array, t1_line_array);
+         t1_getline();
++        alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+         strcat(t1_buf_array, t1_line_array);
++        alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+         strcpy(t1_line_array, t1_buf_array);
+         t1_line_ptr = eol(t1_line_array);
+     }
+diff -Naur a/texk/web2c/luatexdir/image/pdftoepdf.w b/texk/web2c/luatexdir/image/pdftoepdf.w
+--- a/texk/web2c/luatexdir/image/pdftoepdf.w	2018-01-17 18:00:12.000000000 +0000
++++ b/texk/web2c/luatexdir/image/pdftoepdf.w	2018-10-09 01:52:01.648670875 +0100
+@@ -472,10 +472,10 @@
+         break;
+     */
+     case objString:
+-        copyString(pdf, obj->getString());
++        copyString(pdf, (GooString *)obj->getString());
+         break;
+     case objName:
+-        copyName(pdf, obj->getName());
++        copyName(pdf, (char *)obj->getName());
+         break;
+     case objNull:
+         pdf_add_null(pdf);
+diff -Naur a/texk/web2c/luatexdir/lua/lepdflib.cc b/texk/web2c/luatexdir/lua/lepdflib.cc
+--- a/texk/web2c/luatexdir/lua/lepdflib.cc	2018-02-14 14:44:38.000000000 +0000
++++ b/texk/web2c/luatexdir/lua/lepdflib.cc	2018-10-09 01:52:01.649670868 +0100
+@@ -674,7 +674,7 @@
+     uin = (udstruct *) luaL_checkudata(L, 1, M_##in);          \
+     if (uin->pd != NULL && uin->pd->pc != uin->pc)             \
+         pdfdoc_changed_error(L);                               \
+-    gs = ((in *) uin->d)->function();                          \
++    gs = (GooString *)((in *) uin->d)->function();             \
+     if (gs != NULL)                                            \
+         lua_pushlstring(L, gs->getCString(), gs->getLength()); \
+     else                                                       \
+@@ -1813,7 +1813,7 @@
+     if (uin->pd != NULL && uin->pd->pc != uin->pc)
+         pdfdoc_changed_error(L);
+     if (((Object *) uin->d)->isString()) {
+-        gs = ((Object *) uin->d)->getString();
++        gs = (GooString *)((Object *) uin->d)->getString();
+         lua_pushlstring(L, gs->getCString(), gs->getLength());
+     } else
+         lua_pushnil(L);
+diff -Naur a/texk/web2c/pdftexdir/pdftoepdf-newpoppler.cc b/texk/web2c/pdftexdir/pdftoepdf-newpoppler.cc
+--- a/texk/web2c/pdftexdir/pdftoepdf-newpoppler.cc	2018-04-04 05:08:11.000000000 +0100
++++ b/texk/web2c/pdftexdir/pdftoepdf-newpoppler.cc	2018-10-09 01:52:01.649670868 +0100
+@@ -290,7 +290,7 @@
+ static void copyDictEntry(Object * obj, int i)
+ {
+     Object obj1;
+-    copyName(obj->dictGetKey(i));
++    copyName((char *)obj->dictGetKey(i));
+     pdf_puts(" ");
+     obj1 = obj->dictGetValNF(i);
+     copyObject(&obj1);
+@@ -355,7 +355,7 @@
+         if (!procset.isName())
+             pdftex_fail("PDF inclusion: invalid ProcSet entry type <%s>",
+                         procset.getTypeName());
+-        copyName(procset.getName());
++        copyName((char *)procset.getName());
+         pdf_puts(" ");
+     }
+     pdf_puts("]\n");
+@@ -418,7 +418,7 @@
+         && fontdescRef.isRef()
+         && fontdesc.isDict()
+         && embeddableFont(&fontdesc)
+-        && (fontmap = lookup_fontmap(basefont.getName())) != NULL) {
++        && (fontmap = lookup_fontmap((char *)basefont.getName())) != NULL) {
+         // round /StemV value, since the PDF input is a float
+         // (see Font Descriptors in PDF reference), but we only store an
+         // integer, since we don't want to change the struct.
+@@ -427,7 +427,7 @@
+         charset = fontdesc.dictLookup("CharSet");
+         if (!charset.isNull() &&
+             charset.isString() && is_subsetable(fontmap))
+-            epdf_mark_glyphs(fd, charset.getString()->getCString());
++            epdf_mark_glyphs(fd, (char *)charset.getString()->getCString());
+         else
+             embed_whole_font(fd);
+         addFontDesc(fontdescRef.getRef(), fd);
+@@ -456,7 +456,7 @@
+         if (fontRef.isRef())
+             copyFont(obj->dictGetKey(i), &fontRef);
+         else if (fontRef.isDict()) {   // some programs generate pdf with embedded font object
+-            copyName(obj->dictGetKey(i));
++            copyName((char *)obj->dictGetKey(i));
+             pdf_puts(" ");
+             copyObject(&fontRef);
+         }
+@@ -565,7 +565,7 @@
+     } else if (obj->isNum()) {
+         pdf_printf("%s", convertNumToPDF(obj->getNum()));
+     } else if (obj->isString()) {
+-        s = obj->getString();
++        s = (GooString *)obj->getString();
+         p = s->getCString();
+         l = s->getLength();
+         if (strlen(p) == (unsigned int) l) {
+@@ -589,7 +589,7 @@
+             pdf_puts(">");
+         }
+     } else if (obj->isName()) {
+-        copyName(obj->getName());
++        copyName((char *)obj->getName());
+     } else if (obj->isNull()) {
+         pdf_puts("null");
+     } else if (obj->isArray()) {
+diff -Naur a/texk/web2c/pdftexdir/pdftoepdf-poppler0.68.0.cc b/texk/web2c/pdftexdir/pdftoepdf-poppler0.68.0.cc
+--- a/texk/web2c/pdftexdir/pdftoepdf-poppler0.68.0.cc	1970-01-01 01:00:00.000000000 +0100
++++ b/texk/web2c/pdftexdir/pdftoepdf-poppler0.68.0.cc	2018-10-09 01:52:55.627338081 +0100
+@@ -0,0 +1,1114 @@
++/*
++Copyright 1996-2017 Han The Thanh, <thanh at pdftex.org>
++
++This file is part of pdfTeX.
++
++pdfTeX is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2 of the License, or
++(at your option) any later version.
++
++pdfTeX is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License along
++with this program.  If not, see <http://www.gnu.org/licenses/>.
++*/
++
++/*
++This is based on the patch texlive-poppler-0.59.patch <2017-09-19> at
++https://git.archlinux.org/svntogit/packages.git/plain/texlive-bin/trunk
++by Arch Linux. A little modifications are made to avoid a crash for
++some kind of pdf images, such as figure_missing.pdf in gnuplot.
++The poppler should be 0.59.0, ..., 0.68.0. For the poppler-0.69.0 or
++newer versions, a similar file pdftoepdf-poppler0.69.0 is given.
++POPPLER_VERSION should be defined.
++*/
++
++/* Do this early in order to avoid a conflict between
++   MINGW32 <rpcndr.h> defining 'boolean' as 'unsigned char' and
++   <kpathsea/types.h> defining Pascal's boolean as 'int'.
++*/
++#include <w2c/config.h>
++#include <kpathsea/lib.h>
++
++#include <stdlib.h>
++#include <math.h>
++#include <stddef.h>
++#include <stdio.h>
++#include <string.h>
++#include <ctype.h>
++
++#ifdef POPPLER_VERSION
++#include <dirent.h>
++#include <poppler-config.h>
++#include <goo/GooString.h>
++#include <goo/gmem.h>
++#include <goo/gfile.h>
++#define GString GooString
++#else
++#error POPPLER_VERSION should be defined.
++#endif
++#include <assert.h>
++
++#include "Object.h"
++#include "Stream.h"
++#include "Array.h"
++#include "Dict.h"
++#include "XRef.h"
++#include "Catalog.h"
++#include "Link.h"
++#include "Page.h"
++#include "GfxFont.h"
++#include "PDFDoc.h"
++#include "GlobalParams.h"
++#include "Error.h"
++
++// This file is mostly C and not very much C++; it's just used to interface
++// the functions of xpdf, which are written in C++.
++
++extern "C" {
++#include <pdftexdir/ptexmac.h>
++#include <pdftexdir/pdftex-common.h>
++
++// These functions from pdftex.web gets declared in pdftexcoerce.h in the
++// usual web2c way, but we cannot include that file here because C++
++// does not allow it.
++extern int getpdfsuppresswarningpagegroup(void);
++extern integer getpdfsuppressptexinfo(void);
++extern integer zround(double);
++}
++
++// The prefix "PTEX" for the PDF keys is special to pdfTeX;
++// this has been registered with Adobe by Hans Hagen.
++
++#define pdfkeyprefix "PTEX"
++
++#define MASK_SUPPRESS_PTEX_FULLBANNER 0x01
++#define MASK_SUPPRESS_PTEX_FILENAME   0x02
++#define MASK_SUPPRESS_PTEX_PAGENUMBER 0x04
++#define MASK_SUPPRESS_PTEX_INFODICT   0x08
++
++// When copying the Resources of the selected page, all objects are copied
++// recusively top-down. Indirect objects however are not fetched during
++// copying, but get a new object number from pdfTeX and then will be
++// appended into a linked list. Duplicates are checked and removed from the
++// list of indirect objects during appending.
++
++enum InObjType {
++    objFont,
++    objFontDesc,
++    objOther
++};
++
++struct InObj {
++    Ref ref;                    // ref in original PDF
++    InObjType type;             // object type
++    InObj *next;                // next entry in list of indirect objects
++    int num;                    // new object number in output PDF
++    fd_entry *fd;               // pointer to /FontDescriptor object structure
++    int enc_objnum;             // Encoding for objFont
++    int written;                // has it been written to output PDF?
++};
++
++struct UsedEncoding {
++    int enc_objnum;
++    GfxFont *font;
++    UsedEncoding *next;
++};
++
++static InObj *inObjList;
++static UsedEncoding *encodingList;
++static GBool isInit = gFalse;
++
++// --------------------------------------------------------------------
++// Maintain list of open embedded PDF files
++// --------------------------------------------------------------------
++
++struct PdfDocument {
++    char *file_name;
++    PDFDoc *doc;
++    XRef *xref;
++    InObj *inObjList;
++    int occurences;             // number of references to the document; the doc can be
++    // deleted when this is negative
++    PdfDocument *next;
++};
++
++static PdfDocument *pdfDocuments = 0;
++
++static XRef *xref = 0;
++
++// Returns pointer to PdfDocument record for PDF file.
++// Creates a new record if it doesn't exist yet.
++// xref is made current for the document.
++
++static PdfDocument *find_add_document(char *file_name)
++{
++    PdfDocument *p = pdfDocuments;
++    while (p && strcmp(p->file_name, file_name) != 0)
++        p = p->next;
++    if (p) {
++        xref = p->xref;
++        (p->occurences)++;
++        return p;
++    }
++    p = new PdfDocument;
++    p->file_name = xstrdup(file_name);
++    p->xref = xref = 0;
++    p->occurences = 0;
++    GString *docName = new GString(p->file_name);
++    p->doc = new PDFDoc(docName);       // takes ownership of docName
++    if (!p->doc->isOk() || !p->doc->okToPrint()) {
++        pdftex_fail("xpdf: reading PDF image failed");
++    }
++    p->inObjList = 0;
++    p->next = pdfDocuments;
++    pdfDocuments = p;
++    return p;
++}
++
++// Deallocate a PdfDocument with all its resources
++
++static void delete_document(PdfDocument * pdf_doc)
++{
++    PdfDocument **p = &pdfDocuments;
++    while (*p && *p != pdf_doc)
++        p = &((*p)->next);
++    // should not happen:
++    if (!*p)
++        return;
++    // unlink from list
++    *p = pdf_doc->next;
++    // free pdf_doc's resources
++    InObj *r, *n;
++    for (r = pdf_doc->inObjList; r != 0; r = n) {
++        n = r->next;
++        delete r;
++    }
++    xref = pdf_doc->xref;
++    delete pdf_doc->doc;
++    xfree(pdf_doc->file_name);
++    delete pdf_doc;
++}
++
++// --------------------------------------------------------------------
++
++static int addEncoding(GfxFont * gfont)
++{
++    UsedEncoding *n;
++    n = new UsedEncoding;
++    n->next = encodingList;
++    encodingList = n;
++    n->font = gfont;
++    n->enc_objnum = pdfnewobjnum();
++    return n->enc_objnum;
++}
++
++#define addFont(ref, fd, enc_objnum) \
++        addInObj(objFont, ref, fd, enc_objnum)
++
++// addFontDesc is only used to avoid writing the original FontDescriptor
++// from the PDF file.
++
++#define addFontDesc(ref, fd) \
++        addInObj(objFontDesc, ref, fd, 0)
++
++#define addOther(ref) \
++        addInObj(objOther, ref, 0, 0)
++
++static int addInObj(InObjType type, Ref ref, fd_entry * fd, int e)
++{
++    InObj *p, *q, *n = new InObj;
++    if (ref.num == 0)
++        pdftex_fail("PDF inclusion: invalid reference");
++    n->ref = ref;
++    n->type = type;
++    n->next = 0;
++    n->fd = fd;
++    n->enc_objnum = e;
++    n->written = 0;
++    if (inObjList == 0)
++        inObjList = n;
++    else {
++        for (p = inObjList; p != 0; p = p->next) {
++            if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
++                delete n;
++                return p->num;
++            }
++            q = p;
++        }
++        // it is important to add new objects at the end of the list,
++        // because new objects are being added while the list is being
++        // written out.
++        q->next = n;
++    }
++    if (type == objFontDesc)
++        n->num = get_fd_objnum(fd);
++    else
++        n->num = pdfnewobjnum();
++    return n->num;
++}
++
++#if 0 /* unusewd */
++static int getNewObjectNumber(Ref ref)
++{
++    InObj *p;
++    if (inObjList == 0) {
++        pdftex_fail("No objects copied yet");
++    } else {
++        for (p = inObjList; p != 0; p = p->next) {
++            if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
++                return p->num;
++            }
++        }
++        pdftex_fail("Object not yet copied: %i %i", ref.num, ref.gen);
++    }
++#ifdef _MSC_VER
++    /* Never reached, but without __attribute__((noreturn)) for pdftex_fail()
++       MSVC 5.0 requires an int return value.  */
++    return -60000;
++#endif
++}
++#endif
++
++static void copyObject(Object *);
++
++static void copyName(char *s)
++{
++    pdf_puts("/");
++    for (; *s != 0; s++) {
++        if (isdigit(*s) || isupper(*s) || islower(*s) || *s == '_' ||
++            *s == '.' || *s == '-' || *s == '+')
++            pdfout(*s);
++        else
++            pdf_printf("#%.2X", *s & 0xFF);
++    }
++}
++
++static void copyDictEntry(Object * obj, int i)
++{
++    Object obj1;
++    copyName((char *)obj->dictGetKey(i));
++    pdf_puts(" ");
++    obj1 = obj->dictGetValNF(i);
++    copyObject(&obj1);
++    pdf_puts("\n");
++}
++
++static void copyDict(Object * obj)
++{
++    int i, l;
++    if (!obj->isDict())
++        pdftex_fail("PDF inclusion: invalid dict type <%s>",
++                    obj->getTypeName());
++    for (i = 0, l = obj->dictGetLength(); i < l; ++i)
++        copyDictEntry(obj, i);
++}
++
++static void copyFontDict(Object * obj, InObj * r)
++{
++    int i, l;
++    char *key;
++    if (!obj->isDict())
++        pdftex_fail("PDF inclusion: invalid dict type <%s>",
++                    obj->getTypeName());
++    pdf_puts("<<\n");
++    assert(r->type == objFont); // FontDescriptor is in fd_tree
++    for (i = 0, l = obj->dictGetLength(); i < l; ++i) {
++        key = obj->dictGetKey(i);
++        if (strncmp("FontDescriptor", key, strlen("FontDescriptor")) == 0
++            || strncmp("BaseFont", key, strlen("BaseFont")) == 0
++            || strncmp("Encoding", key, strlen("Encoding")) == 0)
++            continue;           // skip original values
++        copyDictEntry(obj, i);
++    }
++    // write new FontDescriptor, BaseFont, and Encoding
++    pdf_printf("/FontDescriptor %d 0 R\n", get_fd_objnum(r->fd));
++    pdf_printf("/BaseFont %d 0 R\n", get_fn_objnum(r->fd));
++    pdf_printf("/Encoding %d 0 R\n", r->enc_objnum);
++    pdf_puts(">>");
++}
++
++static void copyStream(Stream * str)
++{
++    int c, c2 = 0;
++    str->reset();
++    while ((c = str->getChar()) != EOF) {
++        pdfout(c);
++        c2 = c;
++    }
++    pdflastbyte = c2;
++}
++
++static void copyProcSet(Object * obj)
++{
++    int i, l;
++    Object procset;
++    if (!obj->isArray())
++        pdftex_fail("PDF inclusion: invalid ProcSet array type <%s>",
++                    obj->getTypeName());
++    pdf_puts("/ProcSet [ ");
++    for (i = 0, l = obj->arrayGetLength(); i < l; ++i) {
++        procset = obj->arrayGetNF(i);
++        if (!procset.isName())
++            pdftex_fail("PDF inclusion: invalid ProcSet entry type <%s>",
++                        procset.getTypeName());
++        copyName((char *)procset.getName());
++        pdf_puts(" ");
++    }
++    pdf_puts("]\n");
++}
++
++#define REPLACE_TYPE1C true
++
++static bool embeddableFont(Object * fontdesc)
++{
++    Object fontfile, ffsubtype;
++
++    if (!fontdesc->isDict())
++        return false;
++    fontfile = fontdesc->dictLookup("FontFile");
++    if (fontfile.isStream())
++        return true;
++    if (REPLACE_TYPE1C) {
++        fontfile = fontdesc->dictLookup("FontFile3");
++        if (!fontfile.isStream())
++            return false;
++        ffsubtype = fontfile.streamGetDict()->lookup("Subtype");
++        return ffsubtype.isName() && !strcmp(ffsubtype.getName(), "Type1C");
++    }
++    return false;
++}
++
++static void copyFont(char *tag, Object * fontRef)
++{
++    Object fontdict, subtype, basefont, fontdescRef, fontdesc, charset,
++        stemV;
++    GfxFont *gfont;
++    fd_entry *fd;
++    fm_entry *fontmap;
++    // Check whether the font has already been embedded before analysing it.
++    InObj *p;
++    Ref ref = fontRef->getRef();
++    for (p = inObjList; p; p = p->next) {
++        if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
++            copyName(tag);
++            pdf_printf(" %d 0 R ", p->num);
++            return;
++        }
++    }
++    // Only handle included Type1 (and Type1C) fonts; anything else will be copied.
++    // Type1C fonts are replaced by Type1 fonts, if REPLACE_TYPE1C is true.
++    fontdict = fontRef->fetch(xref);
++    fontdesc = Object(objNull);
++    if (fontdict.isDict()) {
++        subtype = fontdict.dictLookup("Subtype");
++        basefont = fontdict.dictLookup("BaseFont");
++        fontdescRef = fontdict.dictLookupNF("FontDescriptor");
++        if (fontdescRef.isRef()) {
++            fontdesc = fontdescRef.fetch(xref);
++        }
++    }
++    if (!fixedinclusioncopyfont && fontdict.isDict()
++        && subtype.isName()
++        && !strcmp(subtype.getName(), "Type1")
++        && basefont.isName()
++        && fontdescRef.isRef()
++        && fontdesc.isDict()
++        && embeddableFont(&fontdesc)
++        && (fontmap = lookup_fontmap((char *)basefont.getName())) != NULL) {
++        // round /StemV value, since the PDF input is a float
++        // (see Font Descriptors in PDF reference), but we only store an
++        // integer, since we don't want to change the struct.
++        stemV = fontdesc.dictLookup("StemV");
++        fd = epdf_create_fontdescriptor(fontmap, zround(stemV.getNum()));
++        charset = fontdesc.dictLookup("CharSet");
++        if (!charset.isNull() &&
++            charset.isString() && is_subsetable(fontmap))
++            epdf_mark_glyphs(fd, (char *)charset.getString()->getCString());
++        else
++            embed_whole_font(fd);
++        addFontDesc(fontdescRef.getRef(), fd);
++        copyName(tag);
++        gfont = GfxFont::makeFont(xref, tag, fontRef->getRef(),
++                                  fontdict.getDict());
++        pdf_printf(" %d 0 R ", addFont(fontRef->getRef(), fd,
++                                       addEncoding(gfont)));
++    } else {
++        copyName(tag);
++        pdf_puts(" ");
++        copyObject(fontRef);
++    }
++}
++
++static void copyFontResources(Object * obj)
++{
++    Object fontRef;
++    int i, l;
++    if (!obj->isDict())
++        pdftex_fail("PDF inclusion: invalid font resources dict type <%s>",
++                    obj->getTypeName());
++    pdf_puts("/Font << ");
++    for (i = 0, l = obj->dictGetLength(); i < l; ++i) {
++        fontRef = obj->dictGetValNF(i);
++        if (fontRef.isRef())
++            copyFont(obj->dictGetKey(i), &fontRef);
++        else if (fontRef.isDict()) {   // some programs generate pdf with embedded font object
++            copyName((char *)obj->dictGetKey(i));
++            pdf_puts(" ");
++            copyObject(&fontRef);
++        }
++        else
++            pdftex_fail("PDF inclusion: invalid font in reference type <%s>",
++                        fontRef.getTypeName());
++    }
++    pdf_puts(">>\n");
++}
++
++static void copyOtherResources(Object * obj, char *key)
++{
++    // copies all other resources (write_epdf handles Fonts and ProcSets),
++
++    // if Subtype is present, it must be a name
++    if (strcmp("Subtype", key) == 0) {
++        if (!obj->isName()) {
++            pdftex_warn("PDF inclusion: Subtype in Resources dict is not a name"
++                        " (key '%s', type <%s>); ignored.",
++                        key, obj->getTypeName());
++            return;
++        }
++    } else if (!obj->isDict()) {
++        //FIXME: Write the message only to the log file
++        pdftex_warn("PDF inclusion: invalid other resource which is no dict"
++                    " (key '%s', type <%s>); ignored.",
++                    key, obj->getTypeName());
++        return;
++    }
++    copyName(key);
++    pdf_puts(" ");
++    copyObject(obj);
++}
++
++// Function onverts double to string; very small and very large numbers
++// are NOT converted to scientific notation.
++// n must be a number or real conforming to the implementation limits
++// of PDF as specified in appendix C.1 of the PDF Ref.
++// These are:
++// maximum value of ints is +2^32
++// maximum value of reals is +2^15
++// smalles values of reals is 1/(2^16)
++
++static char *convertNumToPDF(double n)
++{
++    static const int precision = 6;
++    static const int fact = (int) 1E6;  // must be 10^precision
++    static const double epsilon = 0.5E-6;       // 2epsilon must be 10^-precision
++    static char buf[64];
++    // handle very small values: return 0
++    if (fabs(n) < epsilon) {
++        buf[0] = '0';
++        buf[1] = '\0';
++    } else {
++        char ints[64];
++        int bindex = 0, sindex = 0;
++        int ival, fval;
++        // handle the sign part if n is negative
++        if (n < 0) {
++            buf[bindex++] = '-';
++            n = -n;
++        }
++        n += epsilon;           // for rounding
++        // handle the integer part, simply with sprintf
++        ival = (int) floor(n);
++        n -= ival;
++        sprintf(ints, "%d", ival);
++        while (ints[sindex] != 0)
++            buf[bindex++] = ints[sindex++];
++        // handle the fractional part up to 'precision' digits
++        fval = (int) floor(n * fact);
++        if (fval) {
++            // set a dot
++            buf[bindex++] = '.';
++            sindex = bindex + precision;
++            buf[sindex--] = '\0';
++            // fill up trailing zeros with the string terminator NULL
++            while (((fval % 10) == 0) && (sindex >= bindex)) {
++                buf[sindex--] = '\0';
++                fval /= 10;
++            }
++            // fill up the fractional part back to front
++            while (sindex >= bindex) {
++                buf[sindex--] = (fval % 10) + '0';
++                fval /= 10;
++            }
++        } else
++            buf[bindex++] = 0;
++    }
++    return (char *) buf;
++}
++
++static void copyObject(Object * obj)
++{
++    Object obj1;
++    int i, l, c;
++    Ref ref;
++    char *p;
++    GString *s;
++    if (obj->isBool()) {
++        pdf_printf("%s", obj->getBool()? "true" : "false");
++    } else if (obj->isInt()) {
++        pdf_printf("%i", obj->getInt());
++    } else if (obj->isReal()) {
++        pdf_printf("%s", convertNumToPDF(obj->getReal()));
++    } else if (obj->isNum()) {
++        pdf_printf("%s", convertNumToPDF(obj->getNum()));
++    } else if (obj->isString()) {
++        s = (GooString *)obj->getString();
++        p = s->getCString();
++        l = s->getLength();
++        if (strlen(p) == (unsigned int) l) {
++            pdf_puts("(");
++            for (; *p != 0; p++) {
++                c = (unsigned char) *p;
++                if (c == '(' || c == ')' || c == '\\')
++                    pdf_printf("\\%c", c);
++                else if (c < 0x20 || c > 0x7F)
++                    pdf_printf("\\%03o", c);
++                else
++                    pdfout(c);
++            }
++            pdf_puts(")");
++        } else {
++            pdf_puts("<");
++            for (i = 0; i < l; i++) {
++                c = s->getChar(i) & 0xFF;
++                pdf_printf("%.2x", c);
++            }
++            pdf_puts(">");
++        }
++    } else if (obj->isName()) {
++        copyName((char *)obj->getName());
++    } else if (obj->isNull()) {
++        pdf_puts("null");
++    } else if (obj->isArray()) {
++        pdf_puts("[");
++        for (i = 0, l = obj->arrayGetLength(); i < l; ++i) {
++            obj1 = obj->arrayGetNF(i);
++            if (!obj1.isName())
++                pdf_puts(" ");
++            copyObject(&obj1);
++        }
++        pdf_puts("]");
++    } else if (obj->isDict()) {
++        pdf_puts("<<\n");
++        copyDict(obj);
++        pdf_puts(">>");
++    } else if (obj->isStream()) {
++        pdf_puts("<<\n");
++        copyDict(obj->getStream()->getDictObject());
++        pdf_puts(">>\n");
++        pdf_puts("stream\n");
++        copyStream(obj->getStream()->getUndecodedStream());
++        pdf_puts("\nendstream");
++    } else if (obj->isRef()) {
++        ref = obj->getRef();
++        if (ref.num == 0) {
++            pdftex_fail
++                ("PDF inclusion: reference to invalid object"
++                 " (is the included pdf broken?)");
++        } else
++            pdf_printf("%d 0 R", addOther(ref));
++    } else {
++        pdftex_fail("PDF inclusion: type <%s> cannot be copied",
++                    obj->getTypeName());
++    }
++}
++
++static void writeRefs()
++{
++    InObj *r;
++    for (r = inObjList; r != 0; r = r->next) {
++        if (!r->written) {
++            r->written = 1;
++            Object obj1 = xref->fetch(r->ref.num, r->ref.gen);
++            if (r->type == objFont) {
++                assert(!obj1.isStream());
++                pdfbeginobj(r->num, 2);         // \pdfobjcompresslevel = 2 is for this
++                copyFontDict(&obj1, r);
++                pdf_puts("\n");
++                pdfendobj();
++            } else if (r->type != objFontDesc) {        // /FontDescriptor is written via write_fontdescriptor()
++                if (obj1.isStream())
++                    pdfbeginobj(r->num, 0);
++                else
++                    pdfbeginobj(r->num, 2);     // \pdfobjcompresslevel = 2 is for this
++                copyObject(&obj1);
++                pdf_puts("\n");
++                pdfendobj();
++            }
++        }
++    }
++}
++
++static void writeEncodings()
++{
++    UsedEncoding *r, *n;
++    char *glyphNames[256], *s;
++    int i;
++    for (r = encodingList; r != 0; r = r->next) {
++        for (i = 0; i < 256; i++) {
++            if (r->font->isCIDFont()) {
++                pdftex_fail
++                    ("PDF inclusion: CID fonts are not supported"
++                     " (try to disable font replacement to fix this)");
++            }
++            if ((s = ((Gfx8BitFont *) r->font)->getCharName(i)) != 0)
++                glyphNames[i] = s;
++            else
++                glyphNames[i] = notdef;
++        }
++        epdf_write_enc(glyphNames, r->enc_objnum);
++    }
++    for (r = encodingList; r != 0; r = n) {
++        n = r->next;
++#ifdef POPPLER_VERSION
++        r->font->decRefCnt();
++#else
++#error POPPLER_VERSION should be defined.
++#endif
++        delete r;
++    }
++}
++
++// get the pagebox according to the pagebox_spec
++static PDFRectangle *get_pagebox(Page * page, int pagebox_spec)
++{
++    if (pagebox_spec == pdfboxspecmedia)
++        return page->getMediaBox();
++    else if (pagebox_spec == pdfboxspeccrop)
++        return page->getCropBox();
++    else if (pagebox_spec == pdfboxspecbleed)
++        return page->getBleedBox();
++    else if (pagebox_spec == pdfboxspectrim)
++        return page->getTrimBox();
++    else if (pagebox_spec == pdfboxspecart)
++        return page->getArtBox();
++    else
++        pdftex_fail("PDF inclusion: unknown value of pagebox spec (%i)",
++                    (int) pagebox_spec);
++    return page->getMediaBox(); // to make the compiler happy
++}
++
++
++// Reads various information about the PDF and sets it up for later inclusion.
++// This will fail if the PDF version of the PDF is higher than
++// minor_pdf_version_wanted or page_name is given and can not be found.
++// It makes no sense to give page_name _and_ page_num.
++// Returns the page number.
++
++int
++read_pdf_info(char *image_name, char *page_name, int page_num,
++              int pagebox_spec, int minor_pdf_version_wanted,
++              int pdf_inclusion_errorlevel)
++{
++    PdfDocument *pdf_doc;
++    Page *page;
++    PDFRectangle *pagebox;
++#ifdef POPPLER_VERSION
++    int pdf_major_version_found, pdf_minor_version_found;
++#else
++#error POPPLER_VERSION should be defined.
++#endif
++    // initialize
++    if (!isInit) {
++        globalParams = new GlobalParams();
++        globalParams->setErrQuiet(gFalse);
++        isInit = gTrue;
++    }
++    // open PDF file
++    pdf_doc = find_add_document(image_name);
++    epdf_doc = (void *) pdf_doc;
++
++    // check PDF version
++    // this works only for PDF 1.x -- but since any versions of PDF newer
++    // than 1.x will not be backwards compatible to PDF 1.x, pdfTeX will
++    // then have to changed drastically anyway.
++#ifdef POPPLER_VERSION
++    pdf_major_version_found = pdf_doc->doc->getPDFMajorVersion();
++    pdf_minor_version_found = pdf_doc->doc->getPDFMinorVersion();
++    if ((pdf_major_version_found > 1)
++     || (pdf_minor_version_found > minor_pdf_version_wanted)) {
++        const char *msg =
++            "PDF inclusion: found PDF version <%d.%d>, but at most version <1.%d> allowed";
++        if (pdf_inclusion_errorlevel > 0) {
++            pdftex_fail(msg, pdf_major_version_found, pdf_minor_version_found, minor_pdf_version_wanted);
++        } else if (pdf_inclusion_errorlevel < 0) {
++            ; /* do nothing */
++        } else { /* = 0, give warning */
++            pdftex_warn(msg, pdf_major_version_found, pdf_minor_version_found, minor_pdf_version_wanted);
++        }
++    }
++#else
++#error POPPLER_VERSION should be defined.
++#endif
++    epdf_num_pages = pdf_doc->doc->getCatalog()->getNumPages();
++    if (page_name) {
++        // get page by name
++        GString name(page_name);
++        LinkDest *link = pdf_doc->doc->findDest(&name);
++        if (link == 0 || !link->isOk())
++            pdftex_fail("PDF inclusion: invalid destination <%s>", page_name);
++        Ref ref = link->getPageRef();
++        page_num = pdf_doc->doc->getCatalog()->findPage(ref.num, ref.gen);
++        if (page_num == 0)
++            pdftex_fail("PDF inclusion: destination is not a page <%s>",
++                        page_name);
++        delete link;
++    } else {
++        // get page by number
++        if (page_num <= 0 || page_num > epdf_num_pages)
++            pdftex_fail("PDF inclusion: required page does not exist <%i>",
++                        epdf_num_pages);
++    }
++    // get the required page
++    page = pdf_doc->doc->getCatalog()->getPage(page_num);
++
++    // get the pagebox (media, crop...) to use.
++    pagebox = get_pagebox(page, pagebox_spec);
++    if (pagebox->x2 > pagebox->x1) {
++        epdf_orig_x = pagebox->x1;
++        epdf_width = pagebox->x2 - pagebox->x1;
++    } else {
++        epdf_orig_x = pagebox->x2;
++        epdf_width = pagebox->x1 - pagebox->x2;
++    }
++    if (pagebox->y2 > pagebox->y1) {
++        epdf_orig_y = pagebox->y1;
++        epdf_height = pagebox->y2 - pagebox->y1;
++    } else {
++        epdf_orig_y = pagebox->y2;
++        epdf_height = pagebox->y1 - pagebox->y2;
++    }
++
++    // get page rotation
++    epdf_rotate = page->getRotate() % 360;
++    if (epdf_rotate < 0)
++        epdf_rotate += 360;
++
++    // page group
++    if (page->getGroup() != NULL)
++        epdf_has_page_group = 1;    // only flag that page group is present;
++                                    // the actual object number will be
++                                    // generated in pdftex.web
++    else
++        epdf_has_page_group = 0;    // no page group present
++
++    pdf_doc->xref = pdf_doc->doc->getXRef();
++    return page_num;
++}
++
++// writes the current epf_doc.
++// Here the included PDF is copied, so most errors that can happen during PDF
++// inclusion will arise here.
++
++void write_epdf(void)
++{
++    Page *page;
++    Ref *pageRef;
++    Dict *pageDict;
++    Object contents, obj1, obj2, pageObj, dictObj;
++    Object groupDict;
++    bool writeSepGroup = false;
++    Object info;
++    char *key;
++    char s[256];
++    int i, l;
++    int rotate;
++    double scale[6] = { 0, 0, 0, 0, 0, 0 };
++    bool writematrix = false;
++    int suppress_ptex_info = getpdfsuppressptexinfo();
++    static const char *pageDictKeys[] = {
++        "LastModified",
++        "Metadata",
++        "PieceInfo",
++        "SeparationInfo",
++//         "Group",
++//         "Resources",
++        NULL
++    };
++
++    PdfDocument *pdf_doc = (PdfDocument *) epdf_doc;
++    (pdf_doc->occurences)--;
++    xref = pdf_doc->xref;
++    inObjList = pdf_doc->inObjList;
++    encodingList = 0;
++    page = pdf_doc->doc->getCatalog()->getPage(epdf_selected_page);
++    pageRef = pdf_doc->doc->getCatalog()->getPageRef(epdf_selected_page);
++    pageObj = xref->fetch(pageRef->num, pageRef->gen);
++    pageDict = pageObj.getDict();
++    rotate = page->getRotate();
++    PDFRectangle *pagebox;
++    // write the Page header
++    pdf_puts("/Type /XObject\n");
++    pdf_puts("/Subtype /Form\n");
++    pdf_puts("/FormType 1\n");
++
++    // write additional information
++    if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_FILENAME) == 0) {
++        pdf_printf("/%s.FileName (%s)\n", pdfkeyprefix,
++                   convertStringToPDFString(pdf_doc->file_name,
++                                            strlen(pdf_doc->file_name)));
++    }
++    if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_PAGENUMBER) == 0) {
++        pdf_printf("/%s.PageNumber %i\n", pdfkeyprefix, (int) epdf_selected_page);
++    }
++    if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_INFODICT) == 0) {
++        info = pdf_doc->doc->getDocInfoNF();
++        if (info.isRef()) {
++            // the info dict must be indirect (PDF Ref p. 61)
++            pdf_printf("/%s.InfoDict ", pdfkeyprefix);
++            pdf_printf("%d 0 R\n", addOther(info.getRef()));
++        }
++    }
++    // get the pagebox (media, crop...) to use.
++    pagebox = get_pagebox(page, epdf_page_box);
++
++    // handle page rotation
++    if (rotate != 0) {
++        if (rotate % 90 == 0) {
++            // this handles only the simple case: multiple of 90s but these
++            // are the only values allowed according to the reference
++            // (v1.3, p. 78).
++            // the image is rotated around its center.
++            // the /Rotate key is clockwise while the matrix is
++            // counterclockwise :-%
++            tex_printf(", page is rotated %d degrees", rotate);
++            switch (rotate) {
++            case 90:
++                scale[1] = -1;
++                scale[2] = 1;
++                scale[4] = pagebox->x1 - pagebox->y1;
++                scale[5] = pagebox->y1 + pagebox->x2;
++                writematrix = true;
++                break;
++            case 180:
++                scale[0] = scale[3] = -1;
++                scale[4] = pagebox->x1 + pagebox->x2;
++                scale[5] = pagebox->y1 + pagebox->y2;
++                writematrix = true;
++                break;          // width and height are exchanged
++            case 270:
++                scale[1] = 1;
++                scale[2] = -1;
++                scale[4] = pagebox->x1 + pagebox->y2;
++                scale[5] = pagebox->y1 - pagebox->x1;
++                writematrix = true;
++                break;
++            }
++            if (writematrix) {  // The matrix is only written if the image is rotated.
++                sprintf(s, "/Matrix [%.8f %.8f %.8f %.8f %.8f %.8f]\n",
++                        scale[0],
++                        scale[1], scale[2], scale[3], scale[4], scale[5]);
++                pdf_puts(stripzeros(s));
++            }
++        }
++    }
++
++    sprintf(s, "/BBox [%.8f %.8f %.8f %.8f]\n",
++            pagebox->x1, pagebox->y1, pagebox->x2, pagebox->y2);
++    pdf_puts(stripzeros(s));
++
++    // Metadata validity check (as a stream it must be indirect)
++    dictObj = pageDict->lookupNF("Metadata");
++    if (!dictObj.isNull() && !dictObj.isRef())
++        pdftex_warn("PDF inclusion: /Metadata must be indirect object");
++
++    // copy selected items in Page dictionary except Resources & Group
++    for (i = 0; pageDictKeys[i] != NULL; i++) {
++        dictObj = pageDict->lookupNF(pageDictKeys[i]);
++        if (!dictObj.isNull()) {
++            pdf_newline();
++            pdf_printf("/%s ", pageDictKeys[i]);
++            copyObject(&dictObj); // preserves indirection
++        }
++    } 
++
++    // handle page group
++    dictObj = pageDict->lookupNF("Group");
++    if (!dictObj.isNull()) {
++        if (pdfpagegroupval == 0) { 
++            // another pdf with page group was included earlier on the
++            // same page; copy the Group entry as is.  See manual for
++            // info on why this is a warning.
++            if (getpdfsuppresswarningpagegroup() == 0) {
++                pdftex_warn
++    ("PDF inclusion: multiple pdfs with page group included in a single page");
++            }
++            pdf_newline();
++            pdf_puts("/Group ");
++            copyObject(&dictObj);
++        } else {
++            // write Group dict as a separate object, since the Page dict also refers to it
++            dictObj = pageDict->lookup("Group");
++            if (!dictObj.isDict())
++                pdftex_fail("PDF inclusion: /Group dict missing");
++            writeSepGroup = true;
++/*
++This part is only a single line
++            groupDict = Object(page->getGroup());
++in the original patch. In this case, however, pdftex crashes at
++"delete pdf_doc->doc" in "delete_document()" for inclusion of some
++kind of pdf images, for example, figure_missing.pdf in gnuplot.
++A change
++            groupDict = Object(page->getGroup()).copy();
++does not improve the situation.
++The changes below seem to work fine. 
++*/
++// begin modification
++            groupDict = pageDict->lookup("Group");
++            const Dict& dic1 = page->getGroup();
++            const Dict& dic2 = groupDict.getDict();
++            // replace dic2 in groupDict with dic1
++            l = dic2.getLength();
++            for (i = 0; i < l; i++) {
++                groupDict.dictRemove(dic2.getKey(i));
++            }
++            l = dic1.getLength();
++            for (i = 0; i < l; i++) {
++                groupDict.dictAdd(copyString(dic1.getKey(i)),
++                                  dic1.getValNF(i));
++            }
++// end modification
++            pdf_printf("/Group %ld 0 R\n", (long)pdfpagegroupval);
++        }
++    }
++
++    // write the Resources dictionary
++    if (page->getResourceDict() == NULL) {
++        // Resources can be missing (files without them have been spotted
++        // in the wild); in which case the /Resouces of the /Page will be used.
++        // "This practice is not recommended".
++        pdftex_warn
++            ("PDF inclusion: /Resources missing. 'This practice is not recommended' (PDF Ref)");
++    } else {
++        Object *obj1 = page->getResourceDictObject();
++        if (!obj1->isDict())
++            pdftex_fail("PDF inclusion: invalid resources dict type <%s>",
++                        obj1->getTypeName());
++        pdf_newline();
++        pdf_puts("/Resources <<\n");
++        for (i = 0, l = obj1->dictGetLength(); i < l; ++i) {
++            obj2 = obj1->dictGetVal(i);
++            key = obj1->dictGetKey(i);
++            if (strcmp("Font", key) == 0)
++                copyFontResources(&obj2);
++            else if (strcmp("ProcSet", key) == 0)
++                copyProcSet(&obj2);
++            else
++                copyOtherResources(&obj2, key);
++        }
++        pdf_puts(">>\n");
++    }
++
++    // write the page contents
++    contents = page->getContents();
++    if (contents.isStream()) {
++
++        // Variant A: get stream and recompress under control
++        // of \pdfcompresslevel
++        //
++        // pdfbeginstream();
++        // copyStream(contents->getStream());
++        // pdfendstream();
++
++        // Variant B: copy stream without recompressing
++        //
++        obj1 = contents.streamGetDict()->lookup("F");
++        if (!obj1.isNull()) {
++            pdftex_fail("PDF inclusion: Unsupported external stream");
++        }
++        obj1 = contents.streamGetDict()->lookup("Length");
++        assert(!obj1.isNull());
++        pdf_puts("/Length ");
++        copyObject(&obj1);
++        pdf_puts("\n");
++        obj1 = contents.streamGetDict()->lookup("Filter");
++        if (!obj1.isNull()) {
++            pdf_puts("/Filter ");
++            copyObject(&obj1);
++            pdf_puts("\n");
++            obj1 = contents.streamGetDict()->lookup("DecodeParms");
++            if (!obj1.isNull()) {
++                pdf_puts("/DecodeParms ");
++                copyObject(&obj1);
++                pdf_puts("\n");
++            }
++        }
++        pdf_puts(">>\nstream\n");
++        copyStream(contents.getStream()->getUndecodedStream());
++        pdfendstream();
++    } else if (contents.isArray()) {
++        pdfbeginstream();
++        for (i = 0, l = contents.arrayGetLength(); i < l; ++i) {
++            Object contentsobj = contents.arrayGet(i);
++            copyStream(contentsobj.getStream());
++            if (i < l - 1)
++                pdf_newline();  // add a newline after each stream except the last
++        }
++        pdfendstream();
++    } else {                    // the contents are optional, but we need to include an empty stream
++        pdfbeginstream();
++        pdfendstream();
++    }
++
++    // write out all indirect objects
++    writeRefs();
++
++    // write out all used encodings (and delete list)
++    writeEncodings();
++
++    // write the Group dict if needed
++    if (writeSepGroup) {
++        pdfbeginobj(pdfpagegroupval, 2);
++        copyObject(&groupDict);
++        pdf_puts("\n");
++        pdfendobj();
++        pdfpagegroupval = 0;    // only the 1st included pdf on a page gets its
++                                // Group included in the Page dict
++    }
++
++    // save object list, xref
++    pdf_doc->inObjList = inObjList;
++    pdf_doc->xref = xref;
++}
++
++// Called when an image has been written and it's resources in image_tab are
++// freed and it's not referenced anymore.
++
++void epdf_delete()
++{
++    PdfDocument *pdf_doc = (PdfDocument *) epdf_doc;
++    xref = pdf_doc->xref;
++    if (pdf_doc->occurences < 0) {
++        delete_document(pdf_doc);
++    }
++}
++
++// Called when PDF embedding system is finalized.
++// Now deallocate all remaining PdfDocuments.
++
++void epdf_check_mem()
++{
++    if (isInit) {
++        PdfDocument *p, *n;
++        for (p = pdfDocuments; p; p = n) {
++            n = p->next;
++            delete_document(p);
++        }
++        // see above for globalParams
++        delete globalParams;
++    }
++}
+diff -Naur a/texk/web2c/pdftexdir/pdftoepdf-poppler0.69.0.cc b/texk/web2c/pdftexdir/pdftoepdf-poppler0.69.0.cc
+--- a/texk/web2c/pdftexdir/pdftoepdf-poppler0.69.0.cc	1970-01-01 01:00:00.000000000 +0100
++++ b/texk/web2c/pdftexdir/pdftoepdf-poppler0.69.0.cc	2018-10-09 01:52:55.627338081 +0100
+@@ -0,0 +1,1113 @@
++/*
++Copyright 1996-2017 Han The Thanh, <thanh at pdftex.org>
++
++This file is part of pdfTeX.
++
++pdfTeX is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 2 of the License, or
++(at your option) any later version.
++
++pdfTeX is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License along
++with this program.  If not, see <http://www.gnu.org/licenses/>.
++*/
++
++/*
++This is based on the patch texlive-poppler-0.59.patch <2017-09-19> at
++https://git.archlinux.org/svntogit/packages.git/plain/texlive-bin/trunk
++by Arch Linux. A little modifications are made to avoid a crash for
++some kind of pdf images, such as figure_missing.pdf in gnuplot.
++The poppler should be 0.69.0 or newer versions.
++POPPLER_VERSION should be defined.
++*/
++
++/* Do this early in order to avoid a conflict between
++   MINGW32 <rpcndr.h> defining 'boolean' as 'unsigned char' and
++   <kpathsea/types.h> defining Pascal's boolean as 'int'.
++*/
++#include <w2c/config.h>
++#include <kpathsea/lib.h>
++
++#include <stdlib.h>
++#include <math.h>
++#include <stddef.h>
++#include <stdio.h>
++#include <string.h>
++#include <ctype.h>
++
++#ifdef POPPLER_VERSION
++#include <dirent.h>
++#include <poppler-config.h>
++#include <goo/GooString.h>
++#include <goo/gmem.h>
++#include <goo/gfile.h>
++#define GString GooString
++#else
++#error POPPLER_VERSION should be defined.
++#endif
++#include <assert.h>
++
++#include "Object.h"
++#include "Stream.h"
++#include "Array.h"
++#include "Dict.h"
++#include "XRef.h"
++#include "Catalog.h"
++#include "Link.h"
++#include "Page.h"
++#include "GfxFont.h"
++#include "PDFDoc.h"
++#include "GlobalParams.h"
++#include "Error.h"
++
++// This file is mostly C and not very much C++; it's just used to interface
++// the functions of xpdf, which are written in C++.
++
++extern "C" {
++#include <pdftexdir/ptexmac.h>
++#include <pdftexdir/pdftex-common.h>
++
++// These functions from pdftex.web gets declared in pdftexcoerce.h in the
++// usual web2c way, but we cannot include that file here because C++
++// does not allow it.
++extern int getpdfsuppresswarningpagegroup(void);
++extern integer getpdfsuppressptexinfo(void);
++extern integer zround(double);
++}
++
++// The prefix "PTEX" for the PDF keys is special to pdfTeX;
++// this has been registered with Adobe by Hans Hagen.
++
++#define pdfkeyprefix "PTEX"
++
++#define MASK_SUPPRESS_PTEX_FULLBANNER 0x01
++#define MASK_SUPPRESS_PTEX_FILENAME   0x02
++#define MASK_SUPPRESS_PTEX_PAGENUMBER 0x04
++#define MASK_SUPPRESS_PTEX_INFODICT   0x08
++
++// When copying the Resources of the selected page, all objects are copied
++// recusively top-down. Indirect objects however are not fetched during
++// copying, but get a new object number from pdfTeX and then will be
++// appended into a linked list. Duplicates are checked and removed from the
++// list of indirect objects during appending.
++
++enum InObjType {
++    objFont,
++    objFontDesc,
++    objOther
++};
++
++struct InObj {
++    Ref ref;                    // ref in original PDF
++    InObjType type;             // object type
++    InObj *next;                // next entry in list of indirect objects
++    int num;                    // new object number in output PDF
++    fd_entry *fd;               // pointer to /FontDescriptor object structure
++    int enc_objnum;             // Encoding for objFont
++    int written;                // has it been written to output PDF?
++};
++
++struct UsedEncoding {
++    int enc_objnum;
++    GfxFont *font;
++    UsedEncoding *next;
++};
++
++static InObj *inObjList;
++static UsedEncoding *encodingList;
++static GBool isInit = gFalse;
++
++// --------------------------------------------------------------------
++// Maintain list of open embedded PDF files
++// --------------------------------------------------------------------
++
++struct PdfDocument {
++    char *file_name;
++    PDFDoc *doc;
++    XRef *xref;
++    InObj *inObjList;
++    int occurences;             // number of references to the document; the doc can be
++    // deleted when this is negative
++    PdfDocument *next;
++};
++
++static PdfDocument *pdfDocuments = 0;
++
++static XRef *xref = 0;
++
++// Returns pointer to PdfDocument record for PDF file.
++// Creates a new record if it doesn't exist yet.
++// xref is made current for the document.
++
++static PdfDocument *find_add_document(char *file_name)
++{
++    PdfDocument *p = pdfDocuments;
++    while (p && strcmp(p->file_name, file_name) != 0)
++        p = p->next;
++    if (p) {
++        xref = p->xref;
++        (p->occurences)++;
++        return p;
++    }
++    p = new PdfDocument;
++    p->file_name = xstrdup(file_name);
++    p->xref = xref = 0;
++    p->occurences = 0;
++    GString *docName = new GString(p->file_name);
++    p->doc = new PDFDoc(docName);       // takes ownership of docName
++    if (!p->doc->isOk() || !p->doc->okToPrint()) {
++        pdftex_fail("xpdf: reading PDF image failed");
++    }
++    p->inObjList = 0;
++    p->next = pdfDocuments;
++    pdfDocuments = p;
++    return p;
++}
++
++// Deallocate a PdfDocument with all its resources
++
++static void delete_document(PdfDocument * pdf_doc)
++{
++    PdfDocument **p = &pdfDocuments;
++    while (*p && *p != pdf_doc)
++        p = &((*p)->next);
++    // should not happen:
++    if (!*p)
++        return;
++    // unlink from list
++    *p = pdf_doc->next;
++    // free pdf_doc's resources
++    InObj *r, *n;
++    for (r = pdf_doc->inObjList; r != 0; r = n) {
++        n = r->next;
++        delete r;
++    }
++    xref = pdf_doc->xref;
++    delete pdf_doc->doc;
++    xfree(pdf_doc->file_name);
++    delete pdf_doc;
++}
++
++// --------------------------------------------------------------------
++
++static int addEncoding(GfxFont * gfont)
++{
++    UsedEncoding *n;
++    n = new UsedEncoding;
++    n->next = encodingList;
++    encodingList = n;
++    n->font = gfont;
++    n->enc_objnum = pdfnewobjnum();
++    return n->enc_objnum;
++}
++
++#define addFont(ref, fd, enc_objnum) \
++        addInObj(objFont, ref, fd, enc_objnum)
++
++// addFontDesc is only used to avoid writing the original FontDescriptor
++// from the PDF file.
++
++#define addFontDesc(ref, fd) \
++        addInObj(objFontDesc, ref, fd, 0)
++
++#define addOther(ref) \
++        addInObj(objOther, ref, 0, 0)
++
++static int addInObj(InObjType type, Ref ref, fd_entry * fd, int e)
++{
++    InObj *p, *q, *n = new InObj;
++    if (ref.num == 0)
++        pdftex_fail("PDF inclusion: invalid reference");
++    n->ref = ref;
++    n->type = type;
++    n->next = 0;
++    n->fd = fd;
++    n->enc_objnum = e;
++    n->written = 0;
++    if (inObjList == 0)
++        inObjList = n;
++    else {
++        for (p = inObjList; p != 0; p = p->next) {
++            if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
++                delete n;
++                return p->num;
++            }
++            q = p;
++        }
++        // it is important to add new objects at the end of the list,
++        // because new objects are being added while the list is being
++        // written out.
++        q->next = n;
++    }
++    if (type == objFontDesc)
++        n->num = get_fd_objnum(fd);
++    else
++        n->num = pdfnewobjnum();
++    return n->num;
++}
++
++#if 0 /* unusewd */
++static int getNewObjectNumber(Ref ref)
++{
++    InObj *p;
++    if (inObjList == 0) {
++        pdftex_fail("No objects copied yet");
++    } else {
++        for (p = inObjList; p != 0; p = p->next) {
++            if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
++                return p->num;
++            }
++        }
++        pdftex_fail("Object not yet copied: %i %i", ref.num, ref.gen);
++    }
++#ifdef _MSC_VER
++    /* Never reached, but without __attribute__((noreturn)) for pdftex_fail()
++       MSVC 5.0 requires an int return value.  */
++    return -60000;
++#endif
++}
++#endif
++
++static void copyObject(Object *);
++
++static void copyName(char *s)
++{
++    pdf_puts("/");
++    for (; *s != 0; s++) {
++        if (isdigit(*s) || isupper(*s) || islower(*s) || *s == '_' ||
++            *s == '.' || *s == '-' || *s == '+')
++            pdfout(*s);
++        else
++            pdf_printf("#%.2X", *s & 0xFF);
++    }
++}
++
++static void copyDictEntry(Object * obj, int i)
++{
++    Object obj1;
++    copyName((char *)obj->dictGetKey(i));
++    pdf_puts(" ");
++    obj1 = obj->dictGetValNF(i);
++    copyObject(&obj1);
++    pdf_puts("\n");
++}
++
++static void copyDict(Object * obj)
++{
++    int i, l;
++    if (!obj->isDict())
++        pdftex_fail("PDF inclusion: invalid dict type <%s>",
++                    obj->getTypeName());
++    for (i = 0, l = obj->dictGetLength(); i < l; ++i)
++        copyDictEntry(obj, i);
++}
++
++static void copyFontDict(Object * obj, InObj * r)
++{
++    int i, l;
++    char *key;
++    if (!obj->isDict())
++        pdftex_fail("PDF inclusion: invalid dict type <%s>",
++                    obj->getTypeName());
++    pdf_puts("<<\n");
++    assert(r->type == objFont); // FontDescriptor is in fd_tree
++    for (i = 0, l = obj->dictGetLength(); i < l; ++i) {
++        key = (char *)obj->dictGetKey(i);
++        if (strncmp("FontDescriptor", key, strlen("FontDescriptor")) == 0
++            || strncmp("BaseFont", key, strlen("BaseFont")) == 0
++            || strncmp("Encoding", key, strlen("Encoding")) == 0)
++            continue;           // skip original values
++        copyDictEntry(obj, i);
++    }
++    // write new FontDescriptor, BaseFont, and Encoding
++    pdf_printf("/FontDescriptor %d 0 R\n", get_fd_objnum(r->fd));
++    pdf_printf("/BaseFont %d 0 R\n", get_fn_objnum(r->fd));
++    pdf_printf("/Encoding %d 0 R\n", r->enc_objnum);
++    pdf_puts(">>");
++}
++
++static void copyStream(Stream * str)
++{
++    int c, c2 = 0;
++    str->reset();
++    while ((c = str->getChar()) != EOF) {
++        pdfout(c);
++        c2 = c;
++    }
++    pdflastbyte = c2;
++}
++
++static void copyProcSet(Object * obj)
++{
++    int i, l;
++    Object procset;
++    if (!obj->isArray())
++        pdftex_fail("PDF inclusion: invalid ProcSet array type <%s>",
++                    obj->getTypeName());
++    pdf_puts("/ProcSet [ ");
++    for (i = 0, l = obj->arrayGetLength(); i < l; ++i) {
++        procset = obj->arrayGetNF(i);
++        if (!procset.isName())
++            pdftex_fail("PDF inclusion: invalid ProcSet entry type <%s>",
++                        procset.getTypeName());
++        copyName((char *)procset.getName());
++        pdf_puts(" ");
++    }
++    pdf_puts("]\n");
++}
++
++#define REPLACE_TYPE1C true
++
++static bool embeddableFont(Object * fontdesc)
++{
++    Object fontfile, ffsubtype;
++
++    if (!fontdesc->isDict())
++        return false;
++    fontfile = fontdesc->dictLookup("FontFile");
++    if (fontfile.isStream())
++        return true;
++    if (REPLACE_TYPE1C) {
++        fontfile = fontdesc->dictLookup("FontFile3");
++        if (!fontfile.isStream())
++            return false;
++        ffsubtype = fontfile.streamGetDict()->lookup("Subtype");
++        return ffsubtype.isName() && !strcmp(ffsubtype.getName(), "Type1C");
++    }
++    return false;
++}
++
++static void copyFont(char *tag, Object * fontRef)
++{
++    Object fontdict, subtype, basefont, fontdescRef, fontdesc, charset,
++        stemV;
++    GfxFont *gfont;
++    fd_entry *fd;
++    fm_entry *fontmap;
++    // Check whether the font has already been embedded before analysing it.
++    InObj *p;
++    Ref ref = fontRef->getRef();
++    for (p = inObjList; p; p = p->next) {
++        if (p->ref.num == ref.num && p->ref.gen == ref.gen) {
++            copyName(tag);
++            pdf_printf(" %d 0 R ", p->num);
++            return;
++        }
++    }
++    // Only handle included Type1 (and Type1C) fonts; anything else will be copied.
++    // Type1C fonts are replaced by Type1 fonts, if REPLACE_TYPE1C is true.
++    fontdict = fontRef->fetch(xref);
++    fontdesc = Object(objNull);
++    if (fontdict.isDict()) {
++        subtype = fontdict.dictLookup("Subtype");
++        basefont = fontdict.dictLookup("BaseFont");
++        fontdescRef = fontdict.dictLookupNF("FontDescriptor");
++        if (fontdescRef.isRef()) {
++            fontdesc = fontdescRef.fetch(xref);
++        }
++    }
++    if (!fixedinclusioncopyfont && fontdict.isDict()
++        && subtype.isName()
++        && !strcmp(subtype.getName(), "Type1")
++        && basefont.isName()
++        && fontdescRef.isRef()
++        && fontdesc.isDict()
++        && embeddableFont(&fontdesc)
++        && (fontmap = lookup_fontmap((char *)basefont.getName())) != NULL) {
++        // round /StemV value, since the PDF input is a float
++        // (see Font Descriptors in PDF reference), but we only store an
++        // integer, since we don't want to change the struct.
++        stemV = fontdesc.dictLookup("StemV");
++        fd = epdf_create_fontdescriptor(fontmap, zround(stemV.getNum()));
++        charset = fontdesc.dictLookup("CharSet");
++        if (!charset.isNull() &&
++            charset.isString() && is_subsetable(fontmap))
++            epdf_mark_glyphs(fd, (char *)charset.getString()->getCString());
++        else
++            embed_whole_font(fd);
++        addFontDesc(fontdescRef.getRef(), fd);
++        copyName(tag);
++        gfont = GfxFont::makeFont(xref, tag, fontRef->getRef(),
++                                  fontdict.getDict());
++        pdf_printf(" %d 0 R ", addFont(fontRef->getRef(), fd,
++                                       addEncoding(gfont)));
++    } else {
++        copyName(tag);
++        pdf_puts(" ");
++        copyObject(fontRef);
++    }
++}
++
++static void copyFontResources(Object * obj)
++{
++    Object fontRef;
++    int i, l;
++    if (!obj->isDict())
++        pdftex_fail("PDF inclusion: invalid font resources dict type <%s>",
++                    obj->getTypeName());
++    pdf_puts("/Font << ");
++    for (i = 0, l = obj->dictGetLength(); i < l; ++i) {
++        fontRef = obj->dictGetValNF(i);
++        if (fontRef.isRef())
++            copyFont((char *)obj->dictGetKey(i), &fontRef);
++        else if (fontRef.isDict()) {   // some programs generate pdf with embedded font object
++            copyName((char *)obj->dictGetKey(i));
++            pdf_puts(" ");
++            copyObject(&fontRef);
++        }
++        else
++            pdftex_fail("PDF inclusion: invalid font in reference type <%s>",
++                        fontRef.getTypeName());
++    }
++    pdf_puts(">>\n");
++}
++
++static void copyOtherResources(Object * obj, char *key)
++{
++    // copies all other resources (write_epdf handles Fonts and ProcSets),
++
++    // if Subtype is present, it must be a name
++    if (strcmp("Subtype", key) == 0) {
++        if (!obj->isName()) {
++            pdftex_warn("PDF inclusion: Subtype in Resources dict is not a name"
++                        " (key '%s', type <%s>); ignored.",
++                        key, obj->getTypeName());
++            return;
++        }
++    } else if (!obj->isDict()) {
++        //FIXME: Write the message only to the log file
++        pdftex_warn("PDF inclusion: invalid other resource which is no dict"
++                    " (key '%s', type <%s>); ignored.",
++                    key, obj->getTypeName());
++        return;
++    }
++    copyName(key);
++    pdf_puts(" ");
++    copyObject(obj);
++}
++
++// Function onverts double to string; very small and very large numbers
++// are NOT converted to scientific notation.
++// n must be a number or real conforming to the implementation limits
++// of PDF as specified in appendix C.1 of the PDF Ref.
++// These are:
++// maximum value of ints is +2^32
++// maximum value of reals is +2^15
++// smalles values of reals is 1/(2^16)
++
++static char *convertNumToPDF(double n)
++{
++    static const int precision = 6;
++    static const int fact = (int) 1E6;  // must be 10^precision
++    static const double epsilon = 0.5E-6;       // 2epsilon must be 10^-precision
++    static char buf[64];
++    // handle very small values: return 0
++    if (fabs(n) < epsilon) {
++        buf[0] = '0';
++        buf[1] = '\0';
++    } else {
++        char ints[64];
++        int bindex = 0, sindex = 0;
++        int ival, fval;
++        // handle the sign part if n is negative
++        if (n < 0) {
++            buf[bindex++] = '-';
++            n = -n;
++        }
++        n += epsilon;           // for rounding
++        // handle the integer part, simply with sprintf
++        ival = (int) floor(n);
++        n -= ival;
++        sprintf(ints, "%d", ival);
++        while (ints[sindex] != 0)
++            buf[bindex++] = ints[sindex++];
++        // handle the fractional part up to 'precision' digits
++        fval = (int) floor(n * fact);
++        if (fval) {
++            // set a dot
++            buf[bindex++] = '.';
++            sindex = bindex + precision;
++            buf[sindex--] = '\0';
++            // fill up trailing zeros with the string terminator NULL
++            while (((fval % 10) == 0) && (sindex >= bindex)) {
++                buf[sindex--] = '\0';
++                fval /= 10;
++            }
++            // fill up the fractional part back to front
++            while (sindex >= bindex) {
++                buf[sindex--] = (fval % 10) + '0';
++                fval /= 10;
++            }
++        } else
++            buf[bindex++] = 0;
++    }
++    return (char *) buf;
++}
++
++static void copyObject(Object * obj)
++{
++    Object obj1;
++    int i, l, c;
++    Ref ref;
++    char *p;
++    GString *s;
++    if (obj->isBool()) {
++        pdf_printf("%s", obj->getBool()? "true" : "false");
++    } else if (obj->isInt()) {
++        pdf_printf("%i", obj->getInt());
++    } else if (obj->isReal()) {
++        pdf_printf("%s", convertNumToPDF(obj->getReal()));
++    } else if (obj->isNum()) {
++        pdf_printf("%s", convertNumToPDF(obj->getNum()));
++    } else if (obj->isString()) {
++        s = (GooString *)obj->getString();
++        p = s->getCString();
++        l = s->getLength();
++        if (strlen(p) == (unsigned int) l) {
++            pdf_puts("(");
++            for (; *p != 0; p++) {
++                c = (unsigned char) *p;
++                if (c == '(' || c == ')' || c == '\\')
++                    pdf_printf("\\%c", c);
++                else if (c < 0x20 || c > 0x7F)
++                    pdf_printf("\\%03o", c);
++                else
++                    pdfout(c);
++            }
++            pdf_puts(")");
++        } else {
++            pdf_puts("<");
++            for (i = 0; i < l; i++) {
++                c = s->getChar(i) & 0xFF;
++                pdf_printf("%.2x", c);
++            }
++            pdf_puts(">");
++        }
++    } else if (obj->isName()) {
++        copyName((char *)obj->getName());
++    } else if (obj->isNull()) {
++        pdf_puts("null");
++    } else if (obj->isArray()) {
++        pdf_puts("[");
++        for (i = 0, l = obj->arrayGetLength(); i < l; ++i) {
++            obj1 = obj->arrayGetNF(i);
++            if (!obj1.isName())
++                pdf_puts(" ");
++            copyObject(&obj1);
++        }
++        pdf_puts("]");
++    } else if (obj->isDict()) {
++        pdf_puts("<<\n");
++        copyDict(obj);
++        pdf_puts(">>");
++    } else if (obj->isStream()) {
++        pdf_puts("<<\n");
++        copyDict(obj->getStream()->getDictObject());
++        pdf_puts(">>\n");
++        pdf_puts("stream\n");
++        copyStream(obj->getStream()->getUndecodedStream());
++        pdf_puts("\nendstream");
++    } else if (obj->isRef()) {
++        ref = obj->getRef();
++        if (ref.num == 0) {
++            pdftex_fail
++                ("PDF inclusion: reference to invalid object"
++                 " (is the included pdf broken?)");
++        } else
++            pdf_printf("%d 0 R", addOther(ref));
++    } else {
++        pdftex_fail("PDF inclusion: type <%s> cannot be copied",
++                    obj->getTypeName());
++    }
++}
++
++static void writeRefs()
++{
++    InObj *r;
++    for (r = inObjList; r != 0; r = r->next) {
++        if (!r->written) {
++            r->written = 1;
++            Object obj1 = xref->fetch(r->ref.num, r->ref.gen);
++            if (r->type == objFont) {
++                assert(!obj1.isStream());
++                pdfbeginobj(r->num, 2);         // \pdfobjcompresslevel = 2 is for this
++                copyFontDict(&obj1, r);
++                pdf_puts("\n");
++                pdfendobj();
++            } else if (r->type != objFontDesc) {        // /FontDescriptor is written via write_fontdescriptor()
++                if (obj1.isStream())
++                    pdfbeginobj(r->num, 0);
++                else
++                    pdfbeginobj(r->num, 2);     // \pdfobjcompresslevel = 2 is for this
++                copyObject(&obj1);
++                pdf_puts("\n");
++                pdfendobj();
++            }
++        }
++    }
++}
++
++static void writeEncodings()
++{
++    UsedEncoding *r, *n;
++    char *glyphNames[256], *s;
++    int i;
++    for (r = encodingList; r != 0; r = r->next) {
++        for (i = 0; i < 256; i++) {
++            if (r->font->isCIDFont()) {
++                pdftex_fail
++                    ("PDF inclusion: CID fonts are not supported"
++                     " (try to disable font replacement to fix this)");
++            }
++            if ((s = ((Gfx8BitFont *) r->font)->getCharName(i)) != 0)
++                glyphNames[i] = s;
++            else
++                glyphNames[i] = notdef;
++        }
++        epdf_write_enc(glyphNames, r->enc_objnum);
++    }
++    for (r = encodingList; r != 0; r = n) {
++        n = r->next;
++#ifdef POPPLER_VERSION
++        r->font->decRefCnt();
++#else
++#error POPPLER_VERSION should be defined.
++#endif
++        delete r;
++    }
++}
++
++// get the pagebox according to the pagebox_spec
++static PDFRectangle *get_pagebox(Page * page, int pagebox_spec)
++{
++    if (pagebox_spec == pdfboxspecmedia)
++        return page->getMediaBox();
++    else if (pagebox_spec == pdfboxspeccrop)
++        return page->getCropBox();
++    else if (pagebox_spec == pdfboxspecbleed)
++        return page->getBleedBox();
++    else if (pagebox_spec == pdfboxspectrim)
++        return page->getTrimBox();
++    else if (pagebox_spec == pdfboxspecart)
++        return page->getArtBox();
++    else
++        pdftex_fail("PDF inclusion: unknown value of pagebox spec (%i)",
++                    (int) pagebox_spec);
++    return page->getMediaBox(); // to make the compiler happy
++}
++
++
++// Reads various information about the PDF and sets it up for later inclusion.
++// This will fail if the PDF version of the PDF is higher than
++// minor_pdf_version_wanted or page_name is given and can not be found.
++// It makes no sense to give page_name _and_ page_num.
++// Returns the page number.
++
++int
++read_pdf_info(char *image_name, char *page_name, int page_num,
++              int pagebox_spec, int minor_pdf_version_wanted,
++              int pdf_inclusion_errorlevel)
++{
++    PdfDocument *pdf_doc;
++    Page *page;
++    PDFRectangle *pagebox;
++#ifdef POPPLER_VERSION
++    int pdf_major_version_found, pdf_minor_version_found;
++#else
++#error POPPLER_VERSION should be defined.
++#endif
++    // initialize
++    if (!isInit) {
++        globalParams = new GlobalParams();
++        globalParams->setErrQuiet(gFalse);
++        isInit = gTrue;
++    }
++    // open PDF file
++    pdf_doc = find_add_document(image_name);
++    epdf_doc = (void *) pdf_doc;
++
++    // check PDF version
++    // this works only for PDF 1.x -- but since any versions of PDF newer
++    // than 1.x will not be backwards compatible to PDF 1.x, pdfTeX will
++    // then have to changed drastically anyway.
++#ifdef POPPLER_VERSION
++    pdf_major_version_found = pdf_doc->doc->getPDFMajorVersion();
++    pdf_minor_version_found = pdf_doc->doc->getPDFMinorVersion();
++    if ((pdf_major_version_found > 1)
++     || (pdf_minor_version_found > minor_pdf_version_wanted)) {
++        const char *msg =
++            "PDF inclusion: found PDF version <%d.%d>, but at most version <1.%d> allowed";
++        if (pdf_inclusion_errorlevel > 0) {
++            pdftex_fail(msg, pdf_major_version_found, pdf_minor_version_found, minor_pdf_version_wanted);
++        } else if (pdf_inclusion_errorlevel < 0) {
++            ; /* do nothing */
++        } else { /* = 0, give warning */
++            pdftex_warn(msg, pdf_major_version_found, pdf_minor_version_found, minor_pdf_version_wanted);
++        }
++    }
++#else
++#error POPPLER_VERSION should be defined.
++#endif
++    epdf_num_pages = pdf_doc->doc->getCatalog()->getNumPages();
++    if (page_name) {
++        // get page by name
++        GString name(page_name);
++        LinkDest *link = pdf_doc->doc->findDest(&name);
++        if (link == 0 || !link->isOk())
++            pdftex_fail("PDF inclusion: invalid destination <%s>", page_name);
++        Ref ref = link->getPageRef();
++        page_num = pdf_doc->doc->getCatalog()->findPage(ref.num, ref.gen);
++        if (page_num == 0)
++            pdftex_fail("PDF inclusion: destination is not a page <%s>",
++                        page_name);
++        delete link;
++    } else {
++        // get page by number
++        if (page_num <= 0 || page_num > epdf_num_pages)
++            pdftex_fail("PDF inclusion: required page does not exist <%i>",
++                        epdf_num_pages);
++    }
++    // get the required page
++    page = pdf_doc->doc->getCatalog()->getPage(page_num);
++
++    // get the pagebox (media, crop...) to use.
++    pagebox = get_pagebox(page, pagebox_spec);
++    if (pagebox->x2 > pagebox->x1) {
++        epdf_orig_x = pagebox->x1;
++        epdf_width = pagebox->x2 - pagebox->x1;
++    } else {
++        epdf_orig_x = pagebox->x2;
++        epdf_width = pagebox->x1 - pagebox->x2;
++    }
++    if (pagebox->y2 > pagebox->y1) {
++        epdf_orig_y = pagebox->y1;
++        epdf_height = pagebox->y2 - pagebox->y1;
++    } else {
++        epdf_orig_y = pagebox->y2;
++        epdf_height = pagebox->y1 - pagebox->y2;
++    }
++
++    // get page rotation
++    epdf_rotate = page->getRotate() % 360;
++    if (epdf_rotate < 0)
++        epdf_rotate += 360;
++
++    // page group
++    if (page->getGroup() != NULL)
++        epdf_has_page_group = 1;    // only flag that page group is present;
++                                    // the actual object number will be
++                                    // generated in pdftex.web
++    else
++        epdf_has_page_group = 0;    // no page group present
++
++    pdf_doc->xref = pdf_doc->doc->getXRef();
++    return page_num;
++}
++
++// writes the current epf_doc.
++// Here the included PDF is copied, so most errors that can happen during PDF
++// inclusion will arise here.
++
++void write_epdf(void)
++{
++    Page *page;
++    Ref *pageRef;
++    Dict *pageDict;
++    Object contents, obj1, obj2, pageObj, dictObj;
++    Object groupDict;
++    bool writeSepGroup = false;
++    Object info;
++    char *key;
++    char s[256];
++    int i, l;
++    int rotate;
++    double scale[6] = { 0, 0, 0, 0, 0, 0 };
++    bool writematrix = false;
++    int suppress_ptex_info = getpdfsuppressptexinfo();
++    static const char *pageDictKeys[] = {
++        "LastModified",
++        "Metadata",
++        "PieceInfo",
++        "SeparationInfo",
++//         "Group",
++//         "Resources",
++        NULL
++    };
++
++    PdfDocument *pdf_doc = (PdfDocument *) epdf_doc;
++    (pdf_doc->occurences)--;
++    xref = pdf_doc->xref;
++    inObjList = pdf_doc->inObjList;
++    encodingList = 0;
++    page = pdf_doc->doc->getCatalog()->getPage(epdf_selected_page);
++    pageRef = pdf_doc->doc->getCatalog()->getPageRef(epdf_selected_page);
++    pageObj = xref->fetch(pageRef->num, pageRef->gen);
++    pageDict = pageObj.getDict();
++    rotate = page->getRotate();
++    PDFRectangle *pagebox;
++    // write the Page header
++    pdf_puts("/Type /XObject\n");
++    pdf_puts("/Subtype /Form\n");
++    pdf_puts("/FormType 1\n");
++
++    // write additional information
++    if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_FILENAME) == 0) {
++        pdf_printf("/%s.FileName (%s)\n", pdfkeyprefix,
++                   convertStringToPDFString(pdf_doc->file_name,
++                                            strlen(pdf_doc->file_name)));
++    }
++    if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_PAGENUMBER) == 0) {
++        pdf_printf("/%s.PageNumber %i\n", pdfkeyprefix, (int) epdf_selected_page);
++    }
++    if ((suppress_ptex_info & MASK_SUPPRESS_PTEX_INFODICT) == 0) {
++        info = pdf_doc->doc->getDocInfoNF();
++        if (info.isRef()) {
++            // the info dict must be indirect (PDF Ref p. 61)
++            pdf_printf("/%s.InfoDict ", pdfkeyprefix);
++            pdf_printf("%d 0 R\n", addOther(info.getRef()));
++        }
++    }
++    // get the pagebox (media, crop...) to use.
++    pagebox = get_pagebox(page, epdf_page_box);
++
++    // handle page rotation
++    if (rotate != 0) {
++        if (rotate % 90 == 0) {
++            // this handles only the simple case: multiple of 90s but these
++            // are the only values allowed according to the reference
++            // (v1.3, p. 78).
++            // the image is rotated around its center.
++            // the /Rotate key is clockwise while the matrix is
++            // counterclockwise :-%
++            tex_printf(", page is rotated %d degrees", rotate);
++            switch (rotate) {
++            case 90:
++                scale[1] = -1;
++                scale[2] = 1;
++                scale[4] = pagebox->x1 - pagebox->y1;
++                scale[5] = pagebox->y1 + pagebox->x2;
++                writematrix = true;
++                break;
++            case 180:
++                scale[0] = scale[3] = -1;
++                scale[4] = pagebox->x1 + pagebox->x2;
++                scale[5] = pagebox->y1 + pagebox->y2;
++                writematrix = true;
++                break;          // width and height are exchanged
++            case 270:
++                scale[1] = 1;
++                scale[2] = -1;
++                scale[4] = pagebox->x1 + pagebox->y2;
++                scale[5] = pagebox->y1 - pagebox->x1;
++                writematrix = true;
++                break;
++            }
++            if (writematrix) {  // The matrix is only written if the image is rotated.
++                sprintf(s, "/Matrix [%.8f %.8f %.8f %.8f %.8f %.8f]\n",
++                        scale[0],
++                        scale[1], scale[2], scale[3], scale[4], scale[5]);
++                pdf_puts(stripzeros(s));
++            }
++        }
++    }
++
++    sprintf(s, "/BBox [%.8f %.8f %.8f %.8f]\n",
++            pagebox->x1, pagebox->y1, pagebox->x2, pagebox->y2);
++    pdf_puts(stripzeros(s));
++
++    // Metadata validity check (as a stream it must be indirect)
++    dictObj = pageDict->lookupNF("Metadata");
++    if (!dictObj.isNull() && !dictObj.isRef())
++        pdftex_warn("PDF inclusion: /Metadata must be indirect object");
++
++    // copy selected items in Page dictionary except Resources & Group
++    for (i = 0; pageDictKeys[i] != NULL; i++) {
++        dictObj = pageDict->lookupNF(pageDictKeys[i]);
++        if (!dictObj.isNull()) {
++            pdf_newline();
++            pdf_printf("/%s ", pageDictKeys[i]);
++            copyObject(&dictObj); // preserves indirection
++        }
++    } 
++
++    // handle page group
++    dictObj = pageDict->lookupNF("Group");
++    if (!dictObj.isNull()) {
++        if (pdfpagegroupval == 0) { 
++            // another pdf with page group was included earlier on the
++            // same page; copy the Group entry as is.  See manual for
++            // info on why this is a warning.
++            if (getpdfsuppresswarningpagegroup() == 0) {
++                pdftex_warn
++    ("PDF inclusion: multiple pdfs with page group included in a single page");
++            }
++            pdf_newline();
++            pdf_puts("/Group ");
++            copyObject(&dictObj);
++        } else {
++            // write Group dict as a separate object, since the Page dict also refers to it
++            dictObj = pageDict->lookup("Group");
++            if (!dictObj.isDict())
++                pdftex_fail("PDF inclusion: /Group dict missing");
++            writeSepGroup = true;
++/*
++This part is only a single line
++            groupDict = Object(page->getGroup());
++in the original patch. In this case, however, pdftex crashes at
++"delete pdf_doc->doc" in "delete_document()" for inclusion of some
++kind of pdf images, for example, figure_missing.pdf in gnuplot.
++A change
++            groupDict = Object(page->getGroup()).copy();
++does not improve the situation.
++The changes below seem to work fine. 
++*/
++// begin modification
++            groupDict = pageDict->lookup("Group");
++            const Dict& dic1 = page->getGroup();
++            const Dict& dic2 = groupDict.getDict();
++            // replace dic2 in groupDict with dic1
++            l = dic2.getLength();
++            for (i = 0; i < l; i++) {
++                groupDict.dictRemove(dic2.getKey(i));
++            }
++            l = dic1.getLength();
++            for (i = 0; i < l; i++) {
++                groupDict.dictAdd((const char *)copyString(dic1.getKey(i)),
++                                  dic1.getValNF(i));
++            }
++// end modification
++            pdf_printf("/Group %ld 0 R\n", (long)pdfpagegroupval);
++        }
++    }
++
++    // write the Resources dictionary
++    if (page->getResourceDict() == NULL) {
++        // Resources can be missing (files without them have been spotted
++        // in the wild); in which case the /Resouces of the /Page will be used.
++        // "This practice is not recommended".
++        pdftex_warn
++            ("PDF inclusion: /Resources missing. 'This practice is not recommended' (PDF Ref)");
++    } else {
++        Object *obj1 = page->getResourceDictObject();
++        if (!obj1->isDict())
++            pdftex_fail("PDF inclusion: invalid resources dict type <%s>",
++                        obj1->getTypeName());
++        pdf_newline();
++        pdf_puts("/Resources <<\n");
++        for (i = 0, l = obj1->dictGetLength(); i < l; ++i) {
++            obj2 = obj1->dictGetVal(i);
++            key = (char *)obj1->dictGetKey(i);
++            if (strcmp("Font", key) == 0)
++                copyFontResources(&obj2);
++            else if (strcmp("ProcSet", key) == 0)
++                copyProcSet(&obj2);
++            else
++                copyOtherResources(&obj2, (char *)key);
++        }
++        pdf_puts(">>\n");
++    }
++
++    // write the page contents
++    contents = page->getContents();
++    if (contents.isStream()) {
++
++        // Variant A: get stream and recompress under control
++        // of \pdfcompresslevel
++        //
++        // pdfbeginstream();
++        // copyStream(contents->getStream());
++        // pdfendstream();
++
++        // Variant B: copy stream without recompressing
++        //
++        obj1 = contents.streamGetDict()->lookup("F");
++        if (!obj1.isNull()) {
++            pdftex_fail("PDF inclusion: Unsupported external stream");
++        }
++        obj1 = contents.streamGetDict()->lookup("Length");
++        assert(!obj1.isNull());
++        pdf_puts("/Length ");
++        copyObject(&obj1);
++        pdf_puts("\n");
++        obj1 = contents.streamGetDict()->lookup("Filter");
++        if (!obj1.isNull()) {
++            pdf_puts("/Filter ");
++            copyObject(&obj1);
++            pdf_puts("\n");
++            obj1 = contents.streamGetDict()->lookup("DecodeParms");
++            if (!obj1.isNull()) {
++                pdf_puts("/DecodeParms ");
++                copyObject(&obj1);
++                pdf_puts("\n");
++            }
++        }
++        pdf_puts(">>\nstream\n");
++        copyStream(contents.getStream()->getUndecodedStream());
++        pdfendstream();
++    } else if (contents.isArray()) {
++        pdfbeginstream();
++        for (i = 0, l = contents.arrayGetLength(); i < l; ++i) {
++            Object contentsobj = contents.arrayGet(i);
++            copyStream(contentsobj.getStream());
++            if (i < l - 1)
++                pdf_newline();  // add a newline after each stream except the last
++        }
++        pdfendstream();
++    } else {                    // the contents are optional, but we need to include an empty stream
++        pdfbeginstream();
++        pdfendstream();
++    }
++
++    // write out all indirect objects
++    writeRefs();
++
++    // write out all used encodings (and delete list)
++    writeEncodings();
++
++    // write the Group dict if needed
++    if (writeSepGroup) {
++        pdfbeginobj(pdfpagegroupval, 2);
++        copyObject(&groupDict);
++        pdf_puts("\n");
++        pdfendobj();
++        pdfpagegroupval = 0;    // only the 1st included pdf on a page gets its
++                                // Group included in the Page dict
++    }
++
++    // save object list, xref
++    pdf_doc->inObjList = inObjList;
++    pdf_doc->xref = xref;
++}
++
++// Called when an image has been written and it's resources in image_tab are
++// freed and it's not referenced anymore.
++
++void epdf_delete()
++{
++    PdfDocument *pdf_doc = (PdfDocument *) epdf_doc;
++    xref = pdf_doc->xref;
++    if (pdf_doc->occurences < 0) {
++        delete_document(pdf_doc);
++    }
++}
++
++// Called when PDF embedding system is finalized.
++// Now deallocate all remaining PdfDocuments.
++
++void epdf_check_mem()
++{
++    if (isInit) {
++        PdfDocument *p, *n;
++        for (p = pdfDocuments; p; p = n) {
++            n = p->next;
++            delete_document(p);
++        }
++        // see above for globalParams
++        delete globalParams;
++    }
++}
+diff -Naur a/texk/web2c/pdftexdir/pdftosrc-newpoppler.cc b/texk/web2c/pdftexdir/pdftosrc-newpoppler.cc
+--- a/texk/web2c/pdftexdir/pdftosrc-newpoppler.cc	2017-10-17 22:52:13.000000000 +0100
++++ b/texk/web2c/pdftexdir/pdftosrc-newpoppler.cc	2018-10-09 01:52:01.649670868 +0100
+@@ -109,7 +109,7 @@
+             fprintf(stderr, "No SourceName found\n");
+             exit(1);
+         }
+-        outname = srcName.getString()->getCString();
++        outname = (char *)srcName.getString()->getCString();
+         // We cannot free srcName, as objname shares its string.
+         // srcName.free();
+     } else if (objnum > 0) {
+diff -Naur a/texk/web2c/pdftexdir/writet1.c b/texk/web2c/pdftexdir/writet1.c
+--- a/texk/web2c/pdftexdir/writet1.c	2016-11-25 18:24:37.000000000 +0000
++++ b/texk/web2c/pdftexdir/writet1.c	2018-10-09 01:52:01.649670868 +0100
+@@ -1598,7 +1598,9 @@
+         *(strend(t1_buf_array) - 1) = ' ';
+ 
+         t1_getline();
++        alloc_array(t1_buf, strlen(t1_line_array) + strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+         strcat(t1_buf_array, t1_line_array);
++        alloc_array(t1_line, strlen(t1_buf_array) + 1, T1_BUF_SIZE);
+         strcpy(t1_line_array, t1_buf_array);
+         t1_line_ptr = eol(t1_line_array);
+     }
+diff -Naur a/texk/web2c/ptexdir/ptex_version.h b/texk/web2c/ptexdir/ptex_version.h
+--- a/texk/web2c/ptexdir/ptex_version.h	2018-01-21 03:48:06.000000000 +0000
++++ b/texk/web2c/ptexdir/ptex_version.h	2018-10-09 01:52:01.649670868 +0100
+@@ -1 +1 @@
+-#define PTEX_VERSION "p3.8.0"
++#define PTEX_VERSION "p3.8.1"
+diff -Naur a/texk/web2c/ptexdir/tests/free_ixsp.tex b/texk/web2c/ptexdir/tests/free_ixsp.tex
+--- a/texk/web2c/ptexdir/tests/free_ixsp.tex	1970-01-01 01:00:00.000000000 +0100
++++ b/texk/web2c/ptexdir/tests/free_ixsp.tex	2018-10-09 01:52:01.649670868 +0100
+@@ -0,0 +1,53 @@
++%#!eptex -ini -etex
++\let\dump\relax
++\batchmode
++\input plain
++
++\errorstopmode
++\catcode`@=11
++\newcount\@tempcnta
++\newcount\@tempcntb
++\newcount\@tempcntc
++\mathchardef\LIM=256
++
++\def\MYCHAR#1{%
++  \@tempcntc=\numexpr7*#1+"101\relax
++  \@tempcnta=\@tempcntc\divide\@tempcnta 94
++  \@tempcntb=\numexpr\@tempcntc-94*\@tempcnta+1\relax
++  \ifnum\@tempcntb<0\advance\@tempcntb94 \advance\@tempcnta-1\fi
++  \advance\@tempcnta18 % 18区以降
++  \CNTA=\kuten\numexpr"100*\@tempcnta+\@tempcntb\relax
++}
++
++\newcount\CNT\newcount\CNTA
++\CNT=0
++\loop
++  \MYCHAR\CNT
++  \message{\the\CNT.}
++  \inhibitxspcode\CNTA=1\relax
++  \advance\CNT1\relax
++  \ifnum\CNT<\LIM
++\repeat
++
++\newcount\CNTB
++
++\loop
++  \MYCHAR\CNTB
++  \global\inhibitxspcode\CNTA=3
++{%
++\CNT=0
++\loop
++  \MYCHAR\CNT
++  \count@=\numexpr 1-\inhibitxspcode\CNTA\relax
++  \ifnum\count@=0\else\ifnum\CNTB=\CNT\else
++    \errmessage{<\the\CNTB, \the\CNT, \the\inhibitxspcode\CNTA>}\fi\fi
++  \advance\CNT1\relax
++  \ifnum\CNT<\LIM
++\repeat
++}
++  \MYCHAR\CNTB
++  \global\inhibitxspcode\CNTA=1\relax
++  \advance\CNTB1\relax
++  \ifnum\CNTB<\LIM
++\repeat
++\bye
+diff -Naur a/texk/web2c/ptexdir/tests/free_pena.tex b/texk/web2c/ptexdir/tests/free_pena.tex
+--- a/texk/web2c/ptexdir/tests/free_pena.tex	1970-01-01 01:00:00.000000000 +0100
++++ b/texk/web2c/ptexdir/tests/free_pena.tex	2018-10-09 01:52:01.649670868 +0100
+@@ -0,0 +1,52 @@
++%#!eptex -ini -etex
++\let\dump\relax
++\batchmode
++\input plain
++
++\errorstopmode
++\catcode`@=11
++\newcount\@tempcnta
++\newcount\@tempcntb
++\newcount\@tempcntc
++\mathchardef\LIM=256
++
++\def\MYCHAR#1{%
++  \@tempcntc=\numexpr7*#1+"101\relax
++  \@tempcnta=\@tempcntc\divide\@tempcnta 94
++  \@tempcntb=\numexpr\@tempcntc-94*\@tempcnta+1\relax
++  \ifnum\@tempcntb<0\advance\@tempcntb94 \advance\@tempcnta-1\fi
++  \advance\@tempcnta18 % 18区以降
++  \CNTA=\kuten\numexpr"100*\@tempcnta+\@tempcntb\relax
++}
++
++\newcount\CNT\newcount\CNTA
++\CNT=0
++\loop
++  \MYCHAR\CNT
++  \message{\the\CNT.}
++  \prebreakpenalty\CNTA=\numexpr\CNT+1\relax
++  \advance\CNT1\relax
++  \ifnum\CNT<\LIM
++\repeat
++
++\newcount\CNTB
++
++\loop
++  \MYCHAR\CNTB
++  \global\prebreakpenalty\CNTA=0
++{%
++\CNT=0
++\loop
++  \MYCHAR\CNT
++  \count@=\numexpr -\CNT-1+\prebreakpenalty\CNTA\relax
++  \ifnum\count@=0\else\ifnum\CNTB=\CNT\else\errmessage{<\the\CNTB, \the\CNT>}\fi\fi
++  \advance\CNT1\relax
++  \ifnum\CNT<\LIM
++\repeat
++}
++  \MYCHAR\CNTB
++  \global\prebreakpenalty\CNTA=\numexpr\CNTB+1\relax
++  \advance\CNTB1\relax
++  \ifnum\CNTB<\LIM
++\repeat
++\bye


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