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Two patches here backporting fixes from Emacs master.
Upstream status: emailed first patch to latest committer, Robin Templeton
<robin@igalia.com>, no response.
From dfcb3b6ff318e47b84a28cfc43f50bec42fa3570 Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Tue, 7 Nov 2017 18:48:03 +0100
Subject: [PATCH 1/2] backport: Port jpeg configuration to Solaris 10 with Sun
C.
* configure.ac: Check for jpeglib 6b by trying to link it, instead
of relying on cpp magic that has problems in practice. Check for
both jpeglib.h and jerror.h features. Remove special case for
mingw32, which should no longer be needed (and if it were needed,
should now be addressable by hotwiring emacs_cv_jpeglib).
Fixes: bug#20332
From fdf532b9c915ad9ba72155646d29d0f530fd72ec Mon Sep 17 00:00:00 2001
From: Paul Eggert <address@hidden>
Date: Wed, 15 Apr 2015 18:30:01 -0700
Subject: [PATCH] Port jpeg configuration to Solaris 10 with Sun C.
* configure.ac: Check for jpeglib 6b by trying to link it, instead
of relying on cpp magic that has problems in practice. Check for
both jpeglib.h and jerror.h features. Remove special case for
mingw32, which should no longer be needed (and if it were needed,
should now be addressable by hotwiring emacs_cv_jpeglib).
Fixes: bug#20332
---
configure.ac | 72 ++++++++++++++++++++++++++++--------------------------------
1 file changed, 34 insertions(+), 38 deletions(-)
diff --git a/configure.ac b/configure.ac
index 2445db4886..36fa8eb390 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3014,44 +3014,40 @@ AC_SUBST(LIBXPM)
### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
HAVE_JPEG=no
LIBJPEG=
-if test "${opsys}" = "mingw32"; then
- if test "${with_jpeg}" != "no"; then
- dnl Checking for jpeglib.h can lose because of a redefinition of
- dnl HAVE_STDLIB_H.
- AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
- fi
- AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
- if test "${HAVE_JPEG}" = "yes"; then
- AC_DEFINE(HAVE_JPEG)
- AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
- [#include <jpeglib.h>
- version=JPEG_LIB_VERSION
-],
- [AC_DEFINE(HAVE_JPEG)],
- [AC_MSG_WARN([libjpeg found, but not version 6b or later])
- HAVE_JPEG=no])
- fi
-elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
- if test "${with_jpeg}" != "no"; then
- dnl Checking for jpeglib.h can lose because of a redefinition of
- dnl HAVE_STDLIB_H.
- AC_CHECK_HEADER(jerror.h,
- [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
- fi
-
- AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
- if test "${HAVE_JPEG}" = "yes"; then
- AC_DEFINE(HAVE_JPEG)
- AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
- [#include <jpeglib.h>
- version=JPEG_LIB_VERSION
-],
- [AC_DEFINE(HAVE_JPEG)],
- [AC_MSG_WARN([libjpeg found, but not version 6b or later])
- HAVE_JPEG=no])
- fi
- if test "${HAVE_JPEG}" = "yes"; then
- LIBJPEG=-ljpeg
+if test "${with_jpeg}" != "no"; then
+ AC_CACHE_CHECK([for jpeglib 6b or later],
+ [emacs_cv_jpeglib],
+ [OLD_LIBS=$LIBS
+ for emacs_cv_jpeglib in yes -ljpeg no; do
+ case $emacs_cv_jpeglib in
+ yes) ;;
+ no) break;;
+ *) LIBS="$LIBS $emacs_cv_jpeglib";;
+ esac
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
+ #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
+ #include <jpeglib.h>
+ #include <jerror.h>
+ char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
+ struct jpeg_decompress_struct cinfo;
+ ]],
+ [[
+ jpeg_create_decompress (&cinfo);
+ WARNMS (&cinfo, JWRN_JPEG_EOF);
+ jpeg_destroy_decompress (&cinfo);
+ ]])],
+ [emacs_link_ok=yes],
+ [emacs_link_ok=no])
+ LIBS=$OLD_LIBS
+ test $emacs_link_ok = yes && break
+ done])
+ if test "$emacs_cv_jpeglib" != no; then
+ HAVE_JPEG=yes
+ AC_DEFINE([HAVE_JPEG], 1,
+ [Define to 1 if you have the jpeg library (typically -ljpeg).])
+ test "$emacs_cv_jpeglib" != yes && LIBJPEG=$emacs_cv_jpeglib
fi
fi
AC_SUBST(LIBJPEG)
--
Jan Nieuwenhuizen <janneke@gnu.org> | GNU LilyPond http://lilypond.org
Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.com
From f761b92d520b72954be28ad66eb82d1a96c785fb Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Wed, 8 Nov 2017 14:05:43 +0100
Subject: [PATCH 2/2] backport fix for #24065: calloc loop when compiling with
-O2.
This patch fixes
EMACSLOADPATH= '../src/bootstrap-emacs' -batch --no-site-file --no-site-lisp -l autoload \
--eval "(setq generate-autoload-cookie \";;;###cal-autoload\")" \
--eval "(setq generated-autoload-file (expand-file-name
(unmsys--file-name
\"../../git-checkout/lisp/calendar/cal-loaddefs.el\")))" \
-f batch-update-autoloads ../../git-checkout/lisp/calendar
make[2]: *** [Makefile:466: ../../git-checkout/lisp/calendar/cal-loaddefs.el] Segmentation fault
in gdb seen as
in calloc (nmemb=<error reading variable: DWARF-2 expression error:Loop detected (257).>, size=size@entry=1) at gmalloc.c:1510
I did not find malloc-fixing commits from emacs master to cleanly
cherry-pick, so this patch replaces the relevant part in configure
(emacs 53da55b8cc45e76b836ebaadd23f46e92d25abce).
* configure.ac: backport system_malloc/hybrid_malloc detection.
---
configure.ac | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 36fa8eb390..3cc1794f37 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1966,7 +1966,25 @@ case "$opsys" in
darwin|mingw32|sol2-10) system_malloc=yes ;;
esac
+hybrid_malloc=
+system_malloc=yes
+
+test "$CANNOT_DUMP" = yes ||
+case "$opsys" in
+ ## darwin ld insists on the use of malloc routines in the System framework.
+ darwin | mingw32 | nacl | sol2-10) ;;
+ cygwin) hybrid_malloc=yes
+ system_malloc= ;;
+ *) test "$ac_cv_func_sbrk" = yes && system_malloc=$emacs_cv_sanitize_address;;
+esac
+
+if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
+ && test "${UNEXEC_OBJ}" = unexelf.o; then
+ hybrid_malloc=yes
+fi
+
GMALLOC_OBJ=
+HYBRID_MALLOC=
if test "${system_malloc}" = "yes"; then
AC_DEFINE([SYSTEM_MALLOC], 1,
[Define to 1 to use the system memory allocator, even if it is not
@@ -1975,6 +1993,14 @@ if test "${system_malloc}" = "yes"; then
GNU_MALLOC_reason="
(The GNU allocators don't work with this system configuration.)"
VMLIMIT_OBJ=
+elif test "$hybrid_malloc" = yes; then
+ AC_DEFINE(HYBRID_MALLOC, 1,
+ [Define to use gmalloc before dumping and the system malloc after.])
+ HYBRID_MALLOC=1
+ GNU_MALLOC=no
+ GNU_MALLOC_reason=" (only before dumping)"
+ GMALLOC_OBJ=gmalloc.o
+ VMLIMIT_OBJ=
else
test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
VMLIMIT_OBJ=vm-limit.o
@@ -1993,10 +2019,11 @@ else
of the main data segment.])
fi
fi
+AC_SUBST([HYBRID_MALLOC])
AC_SUBST(GMALLOC_OBJ)
AC_SUBST(VMLIMIT_OBJ)
-if test "$doug_lea_malloc" = "yes" ; then
+if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
if test "$GNU_MALLOC" = yes ; then
GNU_MALLOC_reason="
(Using Doug Lea's new malloc from the GNU C Library.)"
--
Jan Nieuwenhuizen <janneke@gnu.org> | GNU LilyPond http://lilypond.org
Freelance IT http://JoyofSource.com | Avatar® http://AvatarAcademy.com
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