dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
AC_PREREQ(2.65)
-AC_INIT(emacs, 24.2.50)
+AC_INIT(emacs, 24.3.50)
AC_CONFIG_HEADER(src/config.h:src/config.in)
AC_CONFIG_SRCDIR(src/lisp.h)
AC_CONFIG_AUX_DIR(build-aux)
fi)
+dnl The name of this option is unfortunate. It predates, and has no
+dnl relation to, the "sampling-based elisp profiler" added in 24.3.
+dnl Actually, it stops it working.
+dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
AC_ARG_ENABLE(profiling,
[AS_HELP_STRING([--enable-profiling],
- [build emacs with profiling support.
- This might not work on all platforms])],
+ [build emacs with low-level, gprof profiling support.
+ Mainly useful for debugging Emacs itself. May not work on
+ all platforms. Stops profiler.el working.])],
[ac_enable_profiling="${enableval}"],[])
if test x$ac_enable_profiling != x ; then
PROFILING_CFLAGS="-DPROFILING=1 -pg"
test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
fi
+# Avoid gnulib's tests for O_NOATIME and O_NOFOLLOW, as we don't use them.
+AC_DEFUN([gl_FCNTL_O_FLAGS])
# Avoid gnulib's threadlib module, as we do threads our own way.
AC_DEFUN([gl_THREADLIB])
nw="$nw -Wfloat-equal" # warns about high-quality code
nw="$nw -Winline" # OK to ignore 'inline'
nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
+ nw="$nw -Wstrict-overflow" # OK to optimize assuming that
+ # signed overflow has undefined behavior
nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
# <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
nw="$nw -Wshadow"
- # The following lines should be removable at some point.
- nw="$nw -Wstack-protector"
- nw="$nw -Wstrict-overflow"
+ # The following line should be removable at some point.
nw="$nw -Wsuggest-attribute=pure"
+ AC_MSG_CHECKING([whether to use -Wstack-protector])
+ AC_PREPROC_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#if (1 <= __LONG_MAX__ >> 31 >> 31 \
+ && 4 < __GNUC__ + (7 < __GNUC_MINOR__ + (2 <= __GNUC_PATCHLEVEL__)))
+ /* OK */
+ #else
+ #error "Not GCC, or GCC before 4.7.2, or 'long int' has < 64 bits."
+ #endif
+ ]])],
+ [AC_MSG_RESULT(yes)],
+ [AC_MSG_RESULT(no)
+ nw="$nw -Wstack-protector"])
+
gl_MANYWARN_ALL_GCC([ws])
gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
for w in $ws; do
AH_VERBATIM([FORTIFY_SOURCE],
[/* Enable compile-time and run-time bounds-checking, and some warnings,
without upsetting glibc 2.15+. */
- #if defined __OPTIMIZE__ && __OPTIMIZE__
+ #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
# define _FORTIFY_SOURCE 2
#endif
])
dnl checks for header files
AC_CHECK_HEADERS_ONCE(
linux/version.h sys/systeminfo.h
- stdio_ext.h fcntl.h coff.h pty.h
+ coff.h pty.h
sys/vlimit.h sys/resource.h
- sys/utsname.h pwd.h utmp.h dirent.h util.h)
+ sys/utsname.h pwd.h utmp.h util.h)
AC_MSG_CHECKING(if personality LINUX32 can be set)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
fi
if test "${HAVE_XPM}" = "yes"; then
- AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm libary (-lXpm).])
+ AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
LIBXPM=-lXpm
fi
fi
AC_CHECK_FUNCS(gethostname \
-closedir getrusage get_current_dir_name \
-lrand48 setsid \
-fpathconf select euidaccess getpagesize setlocale \
-utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
-__fpending strsignal setitimer \
+getrusage get_current_dir_name \
+lrand48 \
+select getpagesize setlocale \
+utimes getrlimit setrlimit shutdown getaddrinfo \
+strsignal setitimer \
sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
gai_strerror mkstemp getline getdelim fsync sync \
difftime posix_memalign \
touchlock \
cfmakeraw cfsetspeed copysign __executable_start)
-dnl getwd appears to be buggy on SVR4.2, so we don't use it.
-if test $opsys = unixware; then
- dnl In case some other test ends up checking for getwd.
- AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
-else
- AC_CHECK_FUNCS(getwd)
-fi
-
## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
## has a broken `rint' in some library versions including math library
## version number A.09.05.
AC_FUNC_FSEEKO
-AC_FUNC_GETPGRP
-
# UNIX98 PTYs.
AC_CHECK_FUNCS(grantpt)
esac
-dnl Used in dispnew.c
-AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
- buffer of a stdio stream.])
-
-AC_MSG_CHECKING([whether we are using the GNU C library])
-AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
-#include <features.h>
-#ifndef __GNU_LIBRARY__
-# error "this is not the GNU C library"
-#endif
- ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
-AC_MSG_RESULT([$emacs_glibc])
-
-if test $emacs_glibc = yes; then
-
- emacs_pending_output=unknown
-
- case $opsys in
- gnu | gnu-linux | gnu-kfreebsd )
- AC_MSG_CHECKING([for style of pending output formalism])
- dnl In autoconf 2.67 and later, we could use a single test
- dnl since the preprocessed output is accessible in "conftest.i".
- AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
-#include <stdio.h>
-#if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
-# error "stdio definitions not found"
-#endif
- ]], [[]])], emacs_pending_output=new, [])
-
- if test $emacs_pending_output = unknown; then
- case $opsys in
- gnu-linux | gnu-kfreebsd)
- AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
-#include <stdio.h>
-#ifndef __UCLIBC__
-# error "not using uclibc"
-#endif
- ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
- ;;
- esac
- fi
-
- AC_MSG_RESULT([$emacs_pending_output])
-
- case $emacs_pending_output in
- new)
- dnl New C libio names.
- AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
- [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
- ;;
- uclibc)
- dnl Using the uClibc library.
- AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
- [((FILE)->__bufpos - (FILE)->__bufstart)])
- ;;
- old)
- dnl Old C++ iostream names.
- AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
- [((FILE)->_pptr - (FILE)->_pbase)])
- ;;
- esac
- ;;
- esac dnl opsys
-
- if test $emacs_pending_output = unknown; then
- AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
- fi
-
-else dnl !emacs_glibc
-
- case $opsys in
- cygwin | darwin | freebsd | netbsd | openbsd )
- AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
- ;;
-
- unixware)
- AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
- ;;
-
- *)
- dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
- if test x$ac_cv_header_stdio_ext_h = xyes && \
- test x$ac_cv_func___fpending = xyes; then
- AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
- AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
- [Define if dispnew.c should include stdio_ext.h.])
- else
- AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
- fi
- ;;
- esac
-fi dnl emacs_glibc
-
-
dnl Used in vm-limit.c
AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
dnl Used in lisp.h, emacs.c, mem-limits.h
irix6-5)
AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
use VSUSP instead of VSWTCH.])
- AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
- should not call setpgrp.])
;;
sol2-10)
## Common for all window systems
if test "$window_system" != "none"; then
AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
- AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
fi
HCoop / bpt / emacs.git / blobdiff