AC_CONFIG_SRCDIR(src/lisp.h)
AC_CONFIG_AUX_DIR(build-aux)
dnl automake 1.13 and later understand this, making -I m4 unnecessary.
+dnl With older versions this is a no-op.
AC_CONFIG_MACRO_DIR(m4)
xcsdkdir=
dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
+## This might be a 'configure' arg, e.g., autogen.sh might set it.
+AC_SUBST([ACLOCAL_PATH])
+
## Makefile.in needs the cache file name.
AC_SUBST(cache_file)
[gl_gcc_warnings=no]
)
-AC_ARG_ENABLE(link-time-optimization,
-[AS_HELP_STRING([--enable-link-time-optimization],
- [build emacs with link-time optimization.
- This is supported only for GCC since 4.5.0.])],
-if test "${enableval}" != "no"; then
- AC_MSG_CHECKING([whether link-time optimization is supported])
- ac_lto_supported=no
- if test x$GCC = xyes; then
- CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
- if test x$CPUS != x; then
- LTO="-flto=$CPUS"
- else
- LTO="-flto"
- fi
- old_CFLAGS=$CFLAGS
- CFLAGS="$CFLAGS $LTO"
- AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
- [ac_lto_supported=yes], [ac_lto_supported=no])
- CFLAGS="$old_CFLAGS"
- fi
- AC_MSG_RESULT([$ac_lto_supported])
- if test "$ac_lto_supported" = "yes"; then
- CFLAGS="$CFLAGS $LTO"
- fi
-fi)
-
# clang is unduly picky about some things.
AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
[AC_COMPILE_IFELSE(
s/^ //
"
-
+AC_ARG_ENABLE(link-time-optimization,
+[AS_HELP_STRING([--enable-link-time-optimization],
+ [build emacs with link-time optimization.
+ This is supported for gcc since 4.5.0 and clang.
+ Note that clang support is experimental - see INSTALL])],
+if test "${enableval}" != "no"; then
+ ac_lto_supported=no
+ if test $emacs_cv_clang = yes; then
+ AC_MSG_CHECKING([whether link-time optimization is supported by clang])
+ GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
+ if test -x "$GOLD_PLUGIN"; then
+ LTO="-flto"
+ fi
+ elif test x$GCC = xyes; then
+ AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
+ CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
+ if test x$CPUS != x; then
+ LTO="-flto=$CPUS"
+ else
+ LTO="-flto"
+ fi
+ else
+ AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
+ fi
+ if test -z "$LTO"; then
+ ac_lto_supported=no
+ else
+ old_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $LTO"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
+ [ac_lto_supported=yes], [ac_lto_supported=no])
+ CFLAGS="$old_CFLAGS"
+ fi
+ AC_MSG_RESULT([$ac_lto_supported])
+ if test "$ac_lto_supported" = "yes"; then
+ CFLAGS="$CFLAGS $LTO"
+ if test x$emacs_cv_clang = xyes; then
+ AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
+ # WARNING: 'ar --plugin ...' doesn't work without
+ # command, so plugin name is appended to ARFLAGS.
+ ARFLAGS="cru --plugin $GOLD_PLUGIN"
+ RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
+ fi
+ fi
+fi)
dnl Some other nice autoconf tests.
dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
-dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
+dnl except that it works around older pkg-config bugs and
+dnl it postprocesses CFLAGS as needed for --enable-gcc-warnings.
dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
dnl actions.
AC_DEFUN([EMACS_CHECK_MODULES],
- [PKG_CHECK_MODULES([$1], [$2],
- [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
- m4_default([$3], [HAVE_$1=yes])],
- [m4_default([$4], [HAVE_$1=no])])])
+ [dnl pkg-config before 0.26 doesn't check exit status properly; see:
+ dnl https://bugs.freedesktop.org/show_bug.cgi?id=29801
+ dnl Work around the bug by checking the status ourselves.
+ emacs_check_module_ok=false
+ AS_IF([test -n "$PKG_CONFIG" &&
+ { $PKG_CONFIG --atleast-pkgconfig-version 0.26 ||
+ { $PKG_CONFIG --cflags "$2" && $PKG_CONFIG --libs "$2"; }
+ } >/dev/null 2>&AS_MESSAGE_LOG_FD],
+ [PKG_CHECK_MODULES([$1], [$2],
+ [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
+ emacs_check_module_ok=:],
+ [:])])
+ if $emacs_check_module_ok; then
+ m4_default([$3], [HAVE_$1=yes])
+ else
+ m4_default([$4], [HAVE_$1=no])
+ fi])
HAVE_SOUND=no
if test "${with_sound}" != "no"; then
HAVE_IMAGEMAGICK=no
if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
if test "${with_imagemagick}" != "no"; then
- ## 6.2.8 is the earliest version known to work, but earlier versions
- ## might work - let us know if you find one.
- ## 6.0.7 does not work. See bug#7955.
+ ## 6.3.5 is the earliest version known to work; see Bug#17339.
## 6.8.2 makes Emacs crash; see Bug#13867.
- IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
+ IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
AC_SUBST(IMAGEMAGICK_CFLAGS)
AC_SUBST(IMAGEMAGICK_LIBS)
fi
AC_SUBST(LIBJPEG)
-### Use -lpng if available, unless `--with-png=no'.
-### mingw32 doesn't use -lpng, since it loads the library dynamically.
-HAVE_PNG=no
-LIBPNG=
-if test "${opsys}" = "mingw32"; then
- if test "${with_png}" != "no"; then
- AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
- fi
- if test "${HAVE_PNG}" = "yes"; then
- AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
-
- AC_CHECK_DECL(png_longjmp,
- [],
- [AC_DEFINE(PNG_DEPSTRUCT, [],
- [Define to empty to suppress deprecation warnings when building
- with --enable-gcc-warnings and with libpng versions before 1.5,
- which lack png_longjmp.])],
- [[#ifdef HAVE_LIBPNG_PNG_H
- # include <libpng/png.h>
- #else
- # include <png.h>
- #endif
- ]])
- fi
-elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
- if test "${with_png}" != "no"; then
- # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
- # in /usr/include/libpng.
- AC_CHECK_HEADERS(png.h libpng/png.h, break)
- if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
- AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
- fi
- fi
-
- if test "${HAVE_PNG}" = "yes"; then
- AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
- LIBPNG="-lpng -lz -lm"
-
- AC_CHECK_DECL(png_longjmp,
- [],
- [AC_DEFINE(PNG_DEPSTRUCT, [],
- [Define to empty to suppress deprecation warnings when building
- with --enable-gcc-warnings and with libpng versions before 1.5,
- which lack png_longjmp.])],
- [[#ifdef HAVE_LIBPNG_PNG_H
- # include <libpng/png.h>
- #else
- # include <png.h>
- #endif
- ]])
- fi
-fi
-AC_SUBST(LIBPNG)
-
HAVE_ZLIB=no
LIBZ=
if test "${with_zlib}" != "no"; then
fi
AC_SUBST(LIBZ)
+### Use -lpng if available, unless `--with-png=no'.
+HAVE_PNG=no
+LIBPNG=
+PNG_CFLAGS=
+if test "${NS_IMPL_COCOA}" = yes; then
+ : # Nothing to do
+elif test "${with_png}" != no; then
+ # mingw32 loads the library dynamically.
+ if test "$opsys" = mingw32; then
+ AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
+ elif png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
+ png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD`
+ then
+ HAVE_PNG=yes
+ PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
+ LIBPNG=$png_libs
+ else
+ # libpng-config does not work; configure by hand.
+ # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
+ # in /usr/include/libpng.
+ AC_CHECK_HEADERS([png.h libpng/png.h],
+ [AC_CHECK_LIB([png], [png_get_channels],
+ [HAVE_PNG=yes
+ LIBPNG='-lpng'
+ if test "$ac_cv_header_png_h" != yes; then
+ PNG_CFLAGS=-I/usr/include/libpng
+ fi
+ break],
+ [], [-lz -lm])])
+ fi
+ # $LIBPNG requires explicit -lz in some cases.
+ # We don't know what those cases are, exactly, so play it safe and
+ # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
+ if test -n "$LIBPNG" && test -z "$LIBZ"; then
+ LIBPNG="$LIBPNG -lz"
+ fi
+fi
+if test $HAVE_PNG = yes; then
+ AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
+
+ SAVE_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $PNG_CFLAGS"
+ AC_CHECK_DECL([png_longjmp],
+ [],
+ [AC_DEFINE([PNG_DEPSTRUCT], [],
+ [Define to empty to suppress deprecation warnings when building
+ with --enable-gcc-warnings and with libpng versions before 1.5,
+ which lack png_longjmp.])],
+ [[#include <png.h>
+ ]])
+ CFLAGS=$SAVE_CFLAGS
+fi
+AC_SUBST(LIBPNG)
+AC_SUBST(PNG_CFLAGS)
### Use -ltiff if available, unless `--with-tiff=no'.
### mingw32 doesn't use -ltiff, since it loads the library dynamically.
AC_SUBST(XINERAMA_CFLAGS)
AC_SUBST(XINERAMA_LIBS)
+### Use Xfixes (-lXfixes) if available
+HAVE_XFIXES=no
+if test "${HAVE_X11}" = "yes"; then
+ XFIXES_REQUIRED=4.0.0
+ XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
+ EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
+ if test $HAVE_XFIXES = no; then
+ # Test old way in case pkg-config doesn't have it (older machines).
+ AC_CHECK_HEADER(X11/extensions/Xfixes.h,
+ [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
+ if test $HAVE_XFIXES = yes; then
+ XFIXES_LIBS=-lXfixes
+ fi
+ fi
+ if test $HAVE_XFIXES = yes; then
+ AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
+ fi
+fi
+AC_SUBST(XFIXES_CFLAGS)
+AC_SUBST(XFIXES_LIBS)
### Use libxml (-lxml2) if available
### mingw32 doesn't use -lxml2, since it loads the library dynamically.
echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
-echo " Does Emacs use -lpng? ${HAVE_PNG}"
+echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
HCoop / bpt / emacs.git / blobdiff