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authorNick Clifton <nickc@redhat.com>2005-12-27 16:37:57 +0000
committerNick Clifton <nickc@redhat.com>2005-12-27 16:37:57 +0000
commit018330f0a42746dd834073eabce62714a47083ed (patch)
tree0f330599cf4138ba411f53a381929741989c3a3f /libtool.m4
parent192af6e2837e32b2d8dea6b39a9739d6df87eb91 (diff)
downloadnewlib-018330f0a42746dd834073eabce62714a47083ed.zip
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PR binutils/1990
* libtool.m4: Synchronize with version in GCC sources.
Diffstat (limited to 'libtool.m4')
-rw-r--r--libtool.m4117
1 files changed, 108 insertions, 9 deletions
diff --git a/libtool.m4 b/libtool.m4
index 85f74ee..cbd74d5 100644
--- a/libtool.m4
+++ b/libtool.m4
@@ -103,6 +103,8 @@ AC_REQUIRE([AC_OBJEXT])dnl
AC_REQUIRE([AC_EXEEXT])dnl
dnl
+AC_LIBTOOL_SYS_MAX_CMD_LEN
+
# Only perform the check for file, if the check method requires it
case $deplibs_check_method in
file_magic*)
@@ -189,6 +191,48 @@ ia64-*-hpux*)
rm -rf conftest*
;;
+x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*)
+ # Find out which ABI we are using.
+ echo 'int i;' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ case "`/usr/bin/file conftest.o`" in
+ *32-bit*)
+ case $host in
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_i386"
+ ;;
+ ppc64-*linux*|powerpc64-*linux*)
+ LD="${LD-ld} -m elf32ppclinux"
+ ;;
+ s390x-*linux*)
+ LD="${LD-ld} -m elf_s390"
+ ;;
+ sparc64-*linux*)
+ LD="${LD-ld} -m elf32_sparc"
+ ;;
+ esac
+ ;;
+ *64-bit*)
+ case $host in
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_x86_64"
+ ;;
+ ppc*-*linux*|powerpc*-*linux*)
+ LD="${LD-ld} -m elf64ppc"
+ ;;
+ s390*-*linux*)
+ LD="${LD-ld} -m elf64_s390"
+ ;;
+ sparc*-*linux*)
+ LD="${LD-ld} -m elf64_sparc"
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ rm -rf conftest*
+ ;;
+
*-*-sco3.2v5*)
# On SCO OpenServer 5, we need -belf to get full-featured binaries.
SAVE_CFLAGS="$CFLAGS"
@@ -237,6 +281,65 @@ ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
esac
])
+
+# AC_LIBTOOL_SYS_MAX_CMD_LEN
+# --------------------------
+AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN],
+[# find the maximum length of command line arguments
+AC_MSG_CHECKING([the maximum length of command line arguments])
+AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
+ i=0
+ teststring="ABCD"
+
+ case $build_os in
+ msdosdjgpp*)
+ # On DJGPP, this test can blow up pretty badly due to problems in libc
+ # (any single argument exceeding 2000 bytes causes a buffer overrun
+ # during glob expansion). Even if it were fixed, the result of this
+ # check would be larger than it should be.
+ lt_cv_sys_max_cmd_len=12288; # 12K is about right
+ ;;
+
+ cygwin* | mingw*)
+ # On Win9x/ME, this test blows up -- it succeeds, but takes
+ # about 5 minutes as the teststring grows exponentially.
+ # Worse, since 9x/ME are not pre-emptively multitasking,
+ # you end up with a "frozen" computer, even though with patience
+ # the test eventually succeeds (with a max line length of 256k).
+ # Instead, let's just punt: use the minimum linelength reported by
+ # all of the supported platforms: 8192 (on NT/2K/XP).
+ lt_cv_sys_max_cmd_len=8192;
+ ;;
+
+ amigaos*)
+ # On AmigaOS with pdksh, this test takes hours, literally.
+ # So we just punt and use a minimum line length of 8192.
+ lt_cv_sys_max_cmd_len=8192;
+ ;;
+
+ netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)
+ # This has been around since 386BSD, at least. Likely further.
+ if test -x /sbin/sysctl; then
+ lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+ elif test -x /usr/sbin/sysctl; then
+ lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+ else
+ lt_cv_sys_max_cmd_len=65536 # usable default for *BSD
+ fi
+ # And add a safety zone
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+ ;;
+ esac
+])
+if test -n "$lt_cv_sys_max_cmd_len" ; then
+ AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
+else
+ AC_MSG_RESULT(none)
+fi
+])# AC_LIBTOOL_SYS_MAX_CMD_LEN
+
+
# AC_LIBTOOL_DLOPEN - enable checks for dlopen support
AC_DEFUN([AC_LIBTOOL_DLOPEN], [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
@@ -565,6 +668,7 @@ cygwin* | mingw* |pw32*)
;;
darwin* | rhapsody*)
+ # this will be overwritten by pass_all, but leave it in just in case
lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library'
lt_cv_file_magic_cmd='/usr/bin/file -L'
case "$host_os" in
@@ -575,6 +679,7 @@ darwin* | rhapsody*)
lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib'
;;
esac
+ lt_cv_deplibs_check_method=pass_all
;;
freebsd* | kfreebsd*-gnu)
@@ -635,14 +740,7 @@ irix5* | irix6*)
# This must be Linux ELF.
linux-gnu*)
- case $host_cpu in
- alpha* | mips* | hppa* | i*86 | powerpc* | sparc* | ia64* )
- lt_cv_deplibs_check_method=pass_all ;;
- *)
- # glibc up to 2.1.1 does not perform some relocations on ARM
- lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'] ;;
- esac
- lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
+ lt_cv_deplibs_check_method=pass_all
;;
netbsd* | knetbsd*-gnu)
@@ -738,8 +836,9 @@ AC_DEFUN([AC_CHECK_LIBM],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
LIBM=
case $host in
-*-*-beos* | *-*-cygwin* | *-*-pw32*)
+*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)
# These system don't have libm
+ # on darwin the libm is a symbolic link to libSystem.dylib
;;
*-ncr-sysv4.3*)
AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")