679 lines
22 KiB
Plaintext
679 lines
22 KiB
Plaintext
|
sinclude(../config/acx.m4)
|
||
|
|
sinclude(../config/accross.m4)
|
||
|
|
sinclude(../config/gettext.m4)
|
||
|
|
sinclude(../config/progtest.m4)
|
||
|
|
|
||
|
|
dnl See whether we need a declaration for a function.
|
||
|
|
dnl The result is highly dependent on the INCLUDES passed in, so make sure
|
||
|
|
dnl to use a different cache variable name in this macro if it is invoked
|
||
|
|
dnl in a different context somewhere else.
|
||
|
|
dnl gcc_AC_CHECK_DECL(SYMBOL,
|
||
|
|
dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
|
||
|
|
AC_DEFUN([gcc_AC_CHECK_DECL],
|
||
|
|
[AC_MSG_CHECKING([whether $1 is declared])
|
||
|
|
AC_CACHE_VAL(gcc_cv_have_decl_$1,
|
||
|
|
[AC_TRY_COMPILE([$4],
|
||
|
|
[#ifndef $1
|
||
|
|
char *(*pfn) = (char *(*)) $1 ;
|
||
|
|
#endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
|
||
|
|
if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
|
||
|
|
AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
|
||
|
|
else
|
||
|
|
AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
|
||
|
|
fi
|
||
|
|
])dnl
|
||
|
|
|
||
|
|
dnl Check multiple functions to see whether each needs a declaration.
|
||
|
|
dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
|
||
|
|
dnl gcc_AC_CHECK_DECLS(SYMBOLS,
|
||
|
|
dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
|
||
|
|
AC_DEFUN([gcc_AC_CHECK_DECLS],
|
||
|
|
[AC_FOREACH([gcc_AC_Func], [$1],
|
||
|
|
[AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_[]gcc_AC_Func),
|
||
|
|
[Define to 1 if we found a declaration for ']gcc_AC_Func[', otherwise
|
||
|
|
define to 0.])])dnl
|
||
|
|
for ac_func in $1
|
||
|
|
do
|
||
|
|
ac_tr_decl=AS_TR_CPP([HAVE_DECL_$ac_func])
|
||
|
|
gcc_AC_CHECK_DECL($ac_func,
|
||
|
|
[AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
|
||
|
|
[AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
|
||
|
|
dnl It is possible that the include files passed in here are local headers
|
||
|
|
dnl which supply a backup declaration for the relevant prototype based on
|
||
|
|
dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
|
||
|
|
dnl will always return success. E.g. see libiberty.h's handling of
|
||
|
|
dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
|
||
|
|
dnl 1 so that any local headers used do not provide their own prototype
|
||
|
|
dnl during this test.
|
||
|
|
#undef $ac_tr_decl
|
||
|
|
#define $ac_tr_decl 1
|
||
|
|
$4
|
||
|
|
)
|
||
|
|
done
|
||
|
|
])
|
||
|
|
|
||
|
|
dnl 'make compare' can be significantly faster, if cmp itself can
|
||
|
|
dnl skip bytes instead of using tail. The test being performed is
|
||
|
|
dnl "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
|
||
|
|
dnl but we need to sink errors and handle broken shells. We also test
|
||
|
|
dnl for the parameter format "cmp file1 file2 skip1 skip2" which is
|
||
|
|
dnl accepted by cmp on some systems.
|
||
|
|
AC_DEFUN([gcc_AC_PROG_CMP_IGNORE_INITIAL],
|
||
|
|
[AC_CACHE_CHECK([for cmp's capabilities], gcc_cv_prog_cmp_skip,
|
||
|
|
[ echo abfoo >t1
|
||
|
|
echo cdfoo >t2
|
||
|
|
gcc_cv_prog_cmp_skip=slowcompare
|
||
|
|
if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
|
||
|
|
if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
|
||
|
|
:
|
||
|
|
else
|
||
|
|
gcc_cv_prog_cmp_skip=gnucompare
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
if test $gcc_cv_prog_cmp_skip = slowcompare ; then
|
||
|
|
if cmp t1 t2 2 2 > /dev/null 2>&1; then
|
||
|
|
if cmp t1 t2 1 1 > /dev/null 2>&1; then
|
||
|
|
:
|
||
|
|
else
|
||
|
|
gcc_cv_prog_cmp_skip=fastcompare
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
rm t1 t2
|
||
|
|
])
|
||
|
|
make_compare_target=$gcc_cv_prog_cmp_skip
|
||
|
|
AC_SUBST(make_compare_target)
|
||
|
|
])
|
||
|
|
|
||
|
|
dnl See if the printf functions in libc support %p in format strings.
|
||
|
|
AC_DEFUN([gcc_AC_FUNC_PRINTF_PTR],
|
||
|
|
[AC_CACHE_CHECK(whether the printf functions support %p,
|
||
|
|
gcc_cv_func_printf_ptr,
|
||
|
|
[AC_TRY_RUN([#include <stdio.h>
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
char buf[64];
|
||
|
|
char *p = buf, *q = NULL;
|
||
|
|
sprintf(buf, "%p", p);
|
||
|
|
sscanf(buf, "%p", &q);
|
||
|
|
return (p != q);
|
||
|
|
}], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no,
|
||
|
|
gcc_cv_func_printf_ptr=no)
|
||
|
|
rm -f core core.* *.core])
|
||
|
|
if test $gcc_cv_func_printf_ptr = yes ; then
|
||
|
|
AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".])
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
|
||
|
|
dnl See if symbolic links work and if not, try to substitute either hard links or simple copy.
|
||
|
|
AC_DEFUN([gcc_AC_PROG_LN_S],
|
||
|
|
[AC_MSG_CHECKING(whether ln -s works)
|
||
|
|
AC_CACHE_VAL(gcc_cv_prog_LN_S,
|
||
|
|
[rm -f conftestdata_t
|
||
|
|
echo >conftestdata_f
|
||
|
|
if ln -s conftestdata_f conftestdata_t 2>/dev/null
|
||
|
|
then
|
||
|
|
gcc_cv_prog_LN_S="ln -s"
|
||
|
|
else
|
||
|
|
if ln conftestdata_f conftestdata_t 2>/dev/null
|
||
|
|
then
|
||
|
|
gcc_cv_prog_LN_S=ln
|
||
|
|
else
|
||
|
|
gcc_cv_prog_LN_S=cp
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
rm -f conftestdata_f conftestdata_t
|
||
|
|
])dnl
|
||
|
|
LN_S="$gcc_cv_prog_LN_S"
|
||
|
|
if test "$gcc_cv_prog_LN_S" = "ln -s"; then
|
||
|
|
AC_MSG_RESULT(yes)
|
||
|
|
else
|
||
|
|
if test "$gcc_cv_prog_LN_S" = "ln"; then
|
||
|
|
AC_MSG_RESULT([no, using ln])
|
||
|
|
else
|
||
|
|
AC_MSG_RESULT([no, and neither does ln, so using cp])
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
AC_SUBST(LN_S)dnl
|
||
|
|
])
|
||
|
|
|
||
|
|
dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead
|
||
|
|
dnl of the usual 2.
|
||
|
|
AC_DEFUN([gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG],
|
||
|
|
[AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg,
|
||
|
|
[AC_TRY_COMPILE([
|
||
|
|
#include <sys/types.h>
|
||
|
|
#ifdef HAVE_SYS_STAT_H
|
||
|
|
# include <sys/stat.h>
|
||
|
|
#endif
|
||
|
|
#ifdef HAVE_UNISTD_H
|
||
|
|
# include <unistd.h>
|
||
|
|
#endif
|
||
|
|
#ifdef HAVE_DIRECT_H
|
||
|
|
# include <direct.h>
|
||
|
|
#endif], [mkdir ("foo", 0);],
|
||
|
|
gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)])
|
||
|
|
if test $gcc_cv_mkdir_takes_one_arg = yes ; then
|
||
|
|
AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.])
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([gcc_AC_PROG_INSTALL],
|
||
|
|
[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
|
||
|
|
# Find a good install program. We prefer a C program (faster),
|
||
|
|
# so one script is as good as another. But avoid the broken or
|
||
|
|
# incompatible versions:
|
||
|
|
# SysV /etc/install, /usr/sbin/install
|
||
|
|
# SunOS /usr/etc/install
|
||
|
|
# IRIX /sbin/install
|
||
|
|
# AIX /bin/install
|
||
|
|
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
|
||
|
|
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
|
||
|
|
# ./install, which can be erroneously created by make from ./install.sh.
|
||
|
|
AC_MSG_CHECKING(for a BSD compatible install)
|
||
|
|
if test -z "$INSTALL"; then
|
||
|
|
AC_CACHE_VAL(ac_cv_path_install,
|
||
|
|
[ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="${IFS}:"
|
||
|
|
for ac_dir in $PATH; do
|
||
|
|
# Account for people who put trailing slashes in PATH elements.
|
||
|
|
case "$ac_dir/" in
|
||
|
|
/|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
|
||
|
|
*)
|
||
|
|
# OSF1 and SCO ODT 3.0 have their own names for install.
|
||
|
|
for ac_prog in ginstall scoinst install; do
|
||
|
|
if test -f $ac_dir/$ac_prog; then
|
||
|
|
if test $ac_prog = install &&
|
||
|
|
grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
|
||
|
|
# AIX install. It has an incompatible calling convention.
|
||
|
|
# OSF/1 installbsd also uses dspmsg, but is usable.
|
||
|
|
:
|
||
|
|
else
|
||
|
|
ac_cv_path_install="$ac_dir/$ac_prog -c"
|
||
|
|
break 2
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
IFS="$ac_save_IFS"
|
||
|
|
])dnl
|
||
|
|
if test "${ac_cv_path_install+set}" = set; then
|
||
|
|
INSTALL="$ac_cv_path_install"
|
||
|
|
else
|
||
|
|
# As a last resort, use the slow shell script. We don't cache a
|
||
|
|
# path for INSTALL within a source directory, because that will
|
||
|
|
# break other packages using the cache if that directory is
|
||
|
|
# removed, or if the path is relative.
|
||
|
|
INSTALL="$ac_install_sh"
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
dnl We do special magic for INSTALL instead of AC_SUBST, to get
|
||
|
|
dnl relative paths right.
|
||
|
|
AC_MSG_RESULT($INSTALL)
|
||
|
|
AC_SUBST(INSTALL)dnl
|
||
|
|
|
||
|
|
# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
|
||
|
|
# It thinks the first close brace ends the variable substitution.
|
||
|
|
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
|
||
|
|
AC_SUBST(INSTALL_PROGRAM)dnl
|
||
|
|
|
||
|
|
test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
|
||
|
|
AC_SUBST(INSTALL_DATA)dnl
|
||
|
|
])
|
||
|
|
|
||
|
|
dnl GCC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
|
||
|
|
dnl like AC_PATH_PROG but use other cache variables
|
||
|
|
AC_DEFUN([GCC_PATH_PROG],
|
||
|
|
[# Extract the first word of "$2", so it can be a program name with args.
|
||
|
|
set dummy $2; ac_word=[$]2
|
||
|
|
AC_MSG_CHECKING([for $ac_word])
|
||
|
|
AC_CACHE_VAL(gcc_cv_path_$1,
|
||
|
|
[case "[$]$1" in
|
||
|
|
/*)
|
||
|
|
gcc_cv_path_$1="[$]$1" # Let the user override the test with a path.
|
||
|
|
;;
|
||
|
|
?:/*)
|
||
|
|
gcc_cv_path_$1="[$]$1" # Let the user override the test with a dos path.
|
||
|
|
;;
|
||
|
|
*)
|
||
|
|
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
|
||
|
|
dnl $ac_dummy forces splitting on constant user-supplied paths.
|
||
|
|
dnl POSIX.2 word splitting is done only on the output of word expansions,
|
||
|
|
dnl not every word. This closes a longstanding sh security hole.
|
||
|
|
ac_dummy="ifelse([$4], , $PATH, [$4])"
|
||
|
|
for ac_dir in $ac_dummy; do
|
||
|
|
test -z "$ac_dir" && ac_dir=.
|
||
|
|
if test -f $ac_dir/$ac_word; then
|
||
|
|
gcc_cv_path_$1="$ac_dir/$ac_word"
|
||
|
|
break
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
IFS="$ac_save_ifs"
|
||
|
|
dnl If no 3rd arg is given, leave the cache variable unset,
|
||
|
|
dnl so GCC_PATH_PROGS will keep looking.
|
||
|
|
ifelse([$3], , , [ test -z "[$]gcc_cv_path_$1" && gcc_cv_path_$1="$3"
|
||
|
|
])dnl
|
||
|
|
;;
|
||
|
|
esac])dnl
|
||
|
|
$1="$gcc_cv_path_$1"
|
||
|
|
if test -n "[$]$1"; then
|
||
|
|
AC_MSG_RESULT([$]$1)
|
||
|
|
else
|
||
|
|
AC_MSG_RESULT(no)
|
||
|
|
fi
|
||
|
|
AC_SUBST($1)dnl
|
||
|
|
])
|
||
|
|
|
||
|
|
# mmap(2) blacklisting. Some platforms provide the mmap library routine
|
||
|
|
# but don't support all of the features we need from it.
|
||
|
|
AC_DEFUN([gcc_AC_FUNC_MMAP_BLACKLIST],
|
||
|
|
[
|
||
|
|
AC_CHECK_HEADER([sys/mman.h],
|
||
|
|
[gcc_header_sys_mman_h=yes], [gcc_header_sys_mman_h=no])
|
||
|
|
AC_CHECK_FUNC([mmap], [gcc_func_mmap=yes], [gcc_func_mmap=no])
|
||
|
|
if test "$gcc_header_sys_mman_h" != yes \
|
||
|
|
|| test "$gcc_func_mmap" != yes; then
|
||
|
|
gcc_cv_func_mmap_file=no
|
||
|
|
gcc_cv_func_mmap_dev_zero=no
|
||
|
|
gcc_cv_func_mmap_anon=no
|
||
|
|
else
|
||
|
|
AC_CACHE_CHECK([whether read-only mmap of a plain file works],
|
||
|
|
gcc_cv_func_mmap_file,
|
||
|
|
[# Add a system to this blacklist if
|
||
|
|
# mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a
|
||
|
|
# memory area containing the same data that you'd get if you applied
|
||
|
|
# read() to the same fd. The only system known to have a problem here
|
||
|
|
# is VMS, where text files have record structure.
|
||
|
|
case "$host_os" in
|
||
|
|
vms* | ultrix*)
|
||
|
|
gcc_cv_func_mmap_file=no ;;
|
||
|
|
*)
|
||
|
|
gcc_cv_func_mmap_file=yes;;
|
||
|
|
esac])
|
||
|
|
AC_CACHE_CHECK([whether mmap from /dev/zero works],
|
||
|
|
gcc_cv_func_mmap_dev_zero,
|
||
|
|
[# Add a system to this blacklist if it has mmap() but /dev/zero
|
||
|
|
# does not exist, or if mmapping /dev/zero does not give anonymous
|
||
|
|
# zeroed pages with both the following properties:
|
||
|
|
# 1. If you map N consecutive pages in with one call, and then
|
||
|
|
# unmap any subset of those pages, the pages that were not
|
||
|
|
# explicitly unmapped remain accessible.
|
||
|
|
# 2. If you map two adjacent blocks of memory and then unmap them
|
||
|
|
# both at once, they must both go away.
|
||
|
|
# Systems known to be in this category are Windows (all variants),
|
||
|
|
# VMS, and Darwin.
|
||
|
|
case "$host_os" in
|
||
|
|
vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00)
|
||
|
|
gcc_cv_func_mmap_dev_zero=no ;;
|
||
|
|
*)
|
||
|
|
gcc_cv_func_mmap_dev_zero=yes;;
|
||
|
|
esac])
|
||
|
|
|
||
|
|
# Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for.
|
||
|
|
AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon,
|
||
|
|
[AC_TRY_COMPILE(
|
||
|
|
[#include <sys/types.h>
|
||
|
|
#include <sys/mman.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#ifndef MAP_ANONYMOUS
|
||
|
|
#define MAP_ANONYMOUS MAP_ANON
|
||
|
|
#endif
|
||
|
|
],
|
||
|
|
[int n = MAP_ANONYMOUS;],
|
||
|
|
gcc_cv_decl_map_anon=yes,
|
||
|
|
gcc_cv_decl_map_anon=no)])
|
||
|
|
|
||
|
|
if test $gcc_cv_decl_map_anon = no; then
|
||
|
|
gcc_cv_func_mmap_anon=no
|
||
|
|
else
|
||
|
|
AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works],
|
||
|
|
gcc_cv_func_mmap_anon,
|
||
|
|
[# Add a system to this blacklist if it has mmap() and MAP_ANON or
|
||
|
|
# MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
|
||
|
|
# doesn't give anonymous zeroed pages with the same properties listed
|
||
|
|
# above for use of /dev/zero.
|
||
|
|
# Systems known to be in this category are Windows, VMS, and SCO Unix.
|
||
|
|
case "$host_os" in
|
||
|
|
vms* | cygwin* | pe | mingw* | sco* | udk* )
|
||
|
|
gcc_cv_func_mmap_anon=no ;;
|
||
|
|
*)
|
||
|
|
gcc_cv_func_mmap_anon=yes;;
|
||
|
|
esac])
|
||
|
|
fi
|
||
|
|
fi
|
||
|
|
|
||
|
|
if test $gcc_cv_func_mmap_file = yes; then
|
||
|
|
AC_DEFINE(HAVE_MMAP_FILE, 1,
|
||
|
|
[Define if read-only mmap of a plain file works.])
|
||
|
|
fi
|
||
|
|
if test $gcc_cv_func_mmap_dev_zero = yes; then
|
||
|
|
AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1,
|
||
|
|
[Define if mmap of /dev/zero works.])
|
||
|
|
fi
|
||
|
|
if test $gcc_cv_func_mmap_anon = yes; then
|
||
|
|
AC_DEFINE(HAVE_MMAP_ANON, 1,
|
||
|
|
[Define if mmap with MAP_ANON(YMOUS) works.])
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
|
||
|
|
dnl Locate a program and check that its version is acceptable.
|
||
|
|
dnl AC_PROG_CHECK_VER(var, name, version-switch,
|
||
|
|
dnl version-extract-regexp, version-glob)
|
||
|
|
AC_DEFUN([gcc_AC_CHECK_PROG_VER],
|
||
|
|
[AC_CHECK_PROG([$1], [$2], [$2])
|
||
|
|
if test -n "[$]$1"; then
|
||
|
|
# Found it, now check the version.
|
||
|
|
AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
|
||
|
|
[changequote(<<,>>)dnl
|
||
|
|
ac_prog_version=`<<$>>$1 $3 2>&1 |
|
||
|
|
sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
|
||
|
|
changequote([,])dnl
|
||
|
|
echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
|
||
|
|
changequote(<<,>>)dnl
|
||
|
|
case $ac_prog_version in
|
||
|
|
'') gcc_cv_prog_$2_modern=no;;
|
||
|
|
<<$5>>)
|
||
|
|
gcc_cv_prog_$2_modern=yes;;
|
||
|
|
*) gcc_cv_prog_$2_modern=no;;
|
||
|
|
esac
|
||
|
|
changequote([,])dnl
|
||
|
|
])
|
||
|
|
else
|
||
|
|
gcc_cv_prog_$2_modern=no
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
|
||
|
|
dnl Determine if enumerated bitfields are unsigned. ISO C says they can
|
||
|
|
dnl be either signed or unsigned.
|
||
|
|
dnl
|
||
|
|
AC_DEFUN([gcc_AC_C_ENUM_BF_UNSIGNED],
|
||
|
|
[AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned,
|
||
|
|
[AC_TRY_RUN(#include <stdlib.h>
|
||
|
|
enum t { BLAH = 128 } ;
|
||
|
|
struct s_t { enum t member : 8; } s ;
|
||
|
|
int main(void)
|
||
|
|
{
|
||
|
|
s.member = BLAH;
|
||
|
|
if (s.member < 0) exit(1);
|
||
|
|
exit(0);
|
||
|
|
|
||
|
|
}, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)])
|
||
|
|
if test $gcc_cv_enum_bf_unsigned = yes; then
|
||
|
|
AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1,
|
||
|
|
[Define if enumerated bitfields are treated as unsigned values.])
|
||
|
|
fi])
|
||
|
|
|
||
|
|
dnl Probe number of bits in a byte.
|
||
|
|
dnl Note C89 requires CHAR_BIT >= 8.
|
||
|
|
dnl
|
||
|
|
AC_DEFUN([gcc_AC_C_CHAR_BIT],
|
||
|
|
[AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit,
|
||
|
|
[AC_EGREP_CPP(found,
|
||
|
|
[#ifdef HAVE_LIMITS_H
|
||
|
|
#include <limits.h>
|
||
|
|
#endif
|
||
|
|
#ifdef CHAR_BIT
|
||
|
|
found
|
||
|
|
#endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no)
|
||
|
|
])
|
||
|
|
if test $gcc_cv_decl_char_bit = no; then
|
||
|
|
AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby,
|
||
|
|
[i=8
|
||
|
|
gcc_cv_c_nbby=
|
||
|
|
while test $i -lt 65; do
|
||
|
|
AC_TRY_COMPILE(,
|
||
|
|
[switch(0) {
|
||
|
|
case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i):
|
||
|
|
case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)):
|
||
|
|
; }],
|
||
|
|
[gcc_cv_c_nbby=$i; break])
|
||
|
|
i=`expr $i + 1`
|
||
|
|
done
|
||
|
|
test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed
|
||
|
|
])
|
||
|
|
if test $gcc_cv_c_nbby = failed; then
|
||
|
|
AC_MSG_ERROR(cannot determine number of bits in a byte)
|
||
|
|
else
|
||
|
|
AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby,
|
||
|
|
[Define as the number of bits in a byte, if \`limits.h' doesn't.])
|
||
|
|
fi
|
||
|
|
fi])
|
||
|
|
|
||
|
|
dnl Checking for long long.
|
||
|
|
dnl By Caolan McNamara <caolan@skynet.ie>
|
||
|
|
dnl Added check for __int64, Zack Weinberg <zackw@stanford.edu>
|
||
|
|
dnl
|
||
|
|
AC_DEFUN([gcc_AC_C_LONG_LONG],
|
||
|
|
[AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
|
||
|
|
[AC_TRY_COMPILE(,[long long int i;],
|
||
|
|
ac_cv_c_long_long=yes,
|
||
|
|
ac_cv_c_long_long=no)])
|
||
|
|
if test $ac_cv_c_long_long = yes; then
|
||
|
|
AC_DEFINE(HAVE_LONG_LONG, 1,
|
||
|
|
[Define if your compiler supports the \`long long' type.])
|
||
|
|
fi
|
||
|
|
AC_CACHE_CHECK(for __int64, ac_cv_c___int64,
|
||
|
|
[AC_TRY_COMPILE(,[__int64 i;],
|
||
|
|
ac_cv_c___int64=yes,
|
||
|
|
ac_cv_c___int64=no)])
|
||
|
|
if test $ac_cv_c___int64 = yes; then
|
||
|
|
AC_DEFINE(HAVE___INT64, 1,
|
||
|
|
[Define if your compiler supports the \`__int64' type.])
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
|
||
|
|
#serial AM2
|
||
|
|
|
||
|
|
dnl From Bruno Haible.
|
||
|
|
|
||
|
|
AC_DEFUN([AM_ICONV],
|
||
|
|
[
|
||
|
|
dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
|
||
|
|
dnl those with the standalone portable GNU libiconv installed).
|
||
|
|
|
||
|
|
am_cv_lib_iconv_ldpath=
|
||
|
|
AC_ARG_WITH([libiconv-prefix],
|
||
|
|
[ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
|
||
|
|
for dir in `echo "$withval" | tr : ' '`; do
|
||
|
|
if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
|
||
|
|
if test -d $dir/lib; then am_cv_lib_iconv_ldpath="-L$dir/lib"; fi
|
||
|
|
done
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_CHECK_HEADERS([iconv.h])
|
||
|
|
|
||
|
|
AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
|
||
|
|
am_cv_func_iconv="no, consider installing GNU libiconv"
|
||
|
|
am_cv_lib_iconv=no
|
||
|
|
AC_TRY_LINK([#include <stdlib.h>
|
||
|
|
#include <iconv.h>],
|
||
|
|
[iconv_t cd = iconv_open("","");
|
||
|
|
iconv(cd,NULL,NULL,NULL,NULL);
|
||
|
|
iconv_close(cd);],
|
||
|
|
am_cv_func_iconv=yes)
|
||
|
|
if test "$am_cv_func_iconv" != yes; then
|
||
|
|
am_save_LIBS="$LIBS"
|
||
|
|
LIBS="$LIBS $am_cv_libiconv_ldpath -liconv"
|
||
|
|
AC_TRY_LINK([#include <stdlib.h>
|
||
|
|
#include <iconv.h>],
|
||
|
|
[iconv_t cd = iconv_open("","");
|
||
|
|
iconv(cd,NULL,NULL,NULL,NULL);
|
||
|
|
iconv_close(cd);],
|
||
|
|
am_cv_lib_iconv=yes
|
||
|
|
am_cv_func_iconv=yes)
|
||
|
|
LIBS="$am_save_LIBS"
|
||
|
|
fi
|
||
|
|
])
|
||
|
|
if test "$am_cv_func_iconv" = yes; then
|
||
|
|
AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
|
||
|
|
AC_MSG_CHECKING([for iconv declaration])
|
||
|
|
AC_CACHE_VAL(am_cv_proto_iconv, [
|
||
|
|
AC_TRY_COMPILE([
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <iconv.h>
|
||
|
|
extern
|
||
|
|
#ifdef __cplusplus
|
||
|
|
"C"
|
||
|
|
#endif
|
||
|
|
#if defined(__STDC__) || defined(__cplusplus)
|
||
|
|
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
|
||
|
|
#else
|
||
|
|
size_t iconv();
|
||
|
|
#endif
|
||
|
|
], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
|
||
|
|
am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
|
||
|
|
am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
|
||
|
|
AC_MSG_RESULT([$]{ac_t:-
|
||
|
|
}[$]am_cv_proto_iconv)
|
||
|
|
AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
|
||
|
|
[Define as const if the declaration of iconv() needs const.])
|
||
|
|
fi
|
||
|
|
LIBICONV=
|
||
|
|
if test "$am_cv_lib_iconv" = yes; then
|
||
|
|
LIBICONV="$am_cv_lib_iconv_ldpath -liconv"
|
||
|
|
fi
|
||
|
|
AC_SUBST(LIBICONV)
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([gcc_AC_INITFINI_ARRAY],
|
||
|
|
[AC_ARG_ENABLE(initfini-array,
|
||
|
|
[ --enable-initfini-array use .init_array/.fini_array sections],
|
||
|
|
[], [
|
||
|
|
AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
|
||
|
|
gcc_cv_initfini_array, [dnl
|
||
|
|
AC_TRY_RUN([
|
||
|
|
static int x = -1;
|
||
|
|
int main (void) { return x; }
|
||
|
|
int foo (void) { x = 0; }
|
||
|
|
int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;],
|
||
|
|
[gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no],
|
||
|
|
[gcc_cv_initfini_array=no])])
|
||
|
|
enable_initfini_array=$gcc_cv_initfini_array
|
||
|
|
])
|
||
|
|
if test $enable_initfini_array = yes; then
|
||
|
|
AC_DEFINE(HAVE_INITFINI_ARRAY, 1,
|
||
|
|
[Define .init_array/.fini_array sections are available and working.])
|
||
|
|
fi])
|
||
|
|
|
||
|
|
dnl # _gcc_COMPUTE_GAS_VERSION
|
||
|
|
dnl # Used by gcc_GAS_VERSION_GTE_IFELSE
|
||
|
|
dnl #
|
||
|
|
dnl # WARNING:
|
||
|
|
dnl # gcc_cv_as_gas_srcdir must be defined before this.
|
||
|
|
dnl # This gross requirement will go away eventually.
|
||
|
|
AC_DEFUN([_gcc_COMPUTE_GAS_VERSION],
|
||
|
|
[gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
|
||
|
|
for f in $gcc_cv_as_bfd_srcdir/configure \
|
||
|
|
$gcc_cv_as_gas_srcdir/configure \
|
||
|
|
$gcc_cv_as_gas_srcdir/configure.in \
|
||
|
|
$gcc_cv_as_gas_srcdir/Makefile.in ; do
|
||
|
|
gcc_cv_gas_version=`grep '^VERSION=[[0-9]]*\.[[0-9]]*' $f`
|
||
|
|
if test x$gcc_cv_gas_version != x; then
|
||
|
|
break
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([[0-9]]*\)"`
|
||
|
|
gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.\([[0-9]]*\)"`
|
||
|
|
gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)"`
|
||
|
|
case $gcc_cv_gas_patch_version in
|
||
|
|
"") gcc_cv_gas_patch_version="0" ;;
|
||
|
|
esac
|
||
|
|
gcc_cv_gas_vers=`expr \( \( $gcc_cv_gas_major_version \* 1000 \) \
|
||
|
|
+ $gcc_cv_gas_minor_version \) \* 1000 \
|
||
|
|
+ $gcc_cv_gas_patch_version`
|
||
|
|
]) []dnl # _gcc_COMPUTE_GAS_VERSION
|
||
|
|
|
||
|
|
dnl # gcc_GAS_VERSION_GTE_IFELSE([elf,] major, minor, patchlevel,
|
||
|
|
dnl # [command_if_true = :], [command_if_false = :])
|
||
|
|
dnl # Check to see if the version of GAS is greater than or
|
||
|
|
dnl # equal to the specified version.
|
||
|
|
dnl #
|
||
|
|
dnl # The first ifelse() shortens the shell code if the patchlevel
|
||
|
|
dnl # is unimportant (the usual case). The others handle missing
|
||
|
|
dnl # commands. Note that the tests are structured so that the most
|
||
|
|
dnl # common version number cases are tested first.
|
||
|
|
AC_DEFUN([_gcc_GAS_VERSION_GTE_IFELSE],
|
||
|
|
[ifelse([$1], elf,
|
||
|
|
[if test $in_tree_gas_is_elf = yes \
|
||
|
|
&&],
|
||
|
|
[if]) test $gcc_cv_gas_vers -ge `expr \( \( $2 \* 1000 \) + $3 \) \* 1000 + $4`
|
||
|
|
then dnl
|
||
|
|
ifelse([$5],,:,[$5])[]dnl
|
||
|
|
ifelse([$6],,,[
|
||
|
|
else $6])
|
||
|
|
fi])
|
||
|
|
|
||
|
|
AC_DEFUN([gcc_GAS_VERSION_GTE_IFELSE],
|
||
|
|
[AC_REQUIRE([_gcc_COMPUTE_GAS_VERSION])dnl
|
||
|
|
ifelse([$1], elf, [_gcc_GAS_VERSION_GTE_IFELSE($@)],
|
||
|
|
[_gcc_GAS_VERSION_GTE_IFELSE(,$@)])])
|
||
|
|
|
||
|
|
dnl gcc_GAS_CHECK_FEATURE(description, cv, [[elf,]major,minor,patchlevel],
|
||
|
|
dnl [extra switches to as], [assembler input],
|
||
|
|
dnl [extra testing logic], [command if feature available])
|
||
|
|
dnl
|
||
|
|
dnl Checks for an assembler feature. If we are building an in-tree
|
||
|
|
dnl gas, the feature is available if the associated assembler version
|
||
|
|
dnl is greater than or equal to major.minor.patchlevel. If not, then
|
||
|
|
dnl ASSEMBLER INPUT is fed to the assembler and the feature is available
|
||
|
|
dnl if assembly succeeds. If EXTRA TESTING LOGIC is not the empty string,
|
||
|
|
dnl then it is run instead of simply setting CV to "yes" - it is responsible
|
||
|
|
dnl for doing so, if appropriate.
|
||
|
|
AC_DEFUN([gcc_GAS_CHECK_FEATURE],
|
||
|
|
[AC_CACHE_CHECK([assembler for $1], [$2],
|
||
|
|
[[$2]=no
|
||
|
|
ifelse([$3],,,[dnl
|
||
|
|
if test $in_tree_gas = yes; then
|
||
|
|
gcc_GAS_VERSION_GTE_IFELSE($3, [[$2]=yes])
|
||
|
|
el])if test x$gcc_cv_as != x; then
|
||
|
|
echo ifelse(m4_substr([$5],0,1),[$], "[$5]", '[$5]') > conftest.s
|
||
|
|
if AC_TRY_COMMAND([$gcc_cv_as $4 -o conftest.o conftest.s >&AC_FD_CC])
|
||
|
|
then
|
||
|
|
ifelse([$6],, [$2]=yes, [$6])
|
||
|
|
else
|
||
|
|
echo "configure: failed program was" >&AC_FD_CC
|
||
|
|
cat conftest.s >&AC_FD_CC
|
||
|
|
fi
|
||
|
|
rm -f conftest.o conftest.s
|
||
|
|
fi])
|
||
|
|
ifelse([$7],,,[dnl
|
||
|
|
if test $[$2] = yes; then
|
||
|
|
$7
|
||
|
|
fi])])
|
||
|
|
|
||
|
|
# lcmessage.m4 serial 3 (gettext-0.11.3)
|
||
|
|
dnl Copyright (C) 1995-2002 Free Software Foundation, Inc.
|
||
|
|
dnl This file is free software, distributed under the terms of the GNU
|
||
|
|
dnl General Public License. As a special exception to the GNU General
|
||
|
|
dnl Public License, this file may be distributed as part of a program
|
||
|
|
dnl that contains a configuration script generated by Autoconf, under
|
||
|
|
dnl the same distribution terms as the rest of that program.
|
||
|
|
dnl
|
||
|
|
dnl This file can can be used in projects which are not available under
|
||
|
|
dnl the GNU General Public License or the GNU Library General Public
|
||
|
|
dnl License but which still want to provide support for the GNU gettext
|
||
|
|
dnl functionality.
|
||
|
|
dnl Please note that the actual code of the GNU gettext library is covered
|
||
|
|
dnl by the GNU Library General Public License, and the rest of the GNU
|
||
|
|
dnl gettext package package is covered by the GNU General Public License.
|
||
|
|
dnl They are *not* in the public domain.
|
||
|
|
|
||
|
|
dnl Authors:
|
||
|
|
dnl Ulrich Drepper <drepper@cygnus.com>, 1995.
|
||
|
|
|
||
|
|
# Check whether LC_MESSAGES is available in <locale.h>.
|
||
|
|
|
||
|
|
AC_DEFUN([AM_LC_MESSAGES],
|
||
|
|
[
|
||
|
|
AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
|
||
|
|
[AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
|
||
|
|
am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
|
||
|
|
if test $am_cv_val_LC_MESSAGES = yes; then
|
||
|
|
AC_DEFINE(HAVE_LC_MESSAGES, 1,
|
||
|
|
[Define if your <locale.h> file defines LC_MESSAGES.])
|
||
|
|
fi
|
||
|
|
])
|