Mercurial > hg > CbC > CbC_gcc
annotate libssp/configure.ac @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 # Process this file with autoconf to produce a configure script, like so: |
| 2 # | |
| 3 # aclocal -I .. -I ../config && autoconf && autoheader && automake | |
| 4 | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
5 AC_PREREQ(2.64) |
| 0 | 6 AC_INIT(libssp, 1.0) |
| 7 AC_CONFIG_SRCDIR(ssp.c) | |
| 8 AC_CANONICAL_SYSTEM | |
| 9 ACX_NONCANONICAL_TARGET | |
| 10 | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
11 AM_INIT_AUTOMAKE([no-dist]) |
| 0 | 12 |
| 13 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
| 14 AC_ARG_ENABLE(version-specific-runtime-libs, | |
| 15 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
| 16 [case "$enableval" in | |
| 17 yes) version_specific_libs=yes ;; | |
| 18 no) version_specific_libs=no ;; | |
| 19 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
| 20 esac], | |
| 21 [version_specific_libs=no]) | |
| 22 AC_MSG_RESULT($version_specific_libs) | |
| 23 | |
| 24 AM_MAINTAINER_MODE | |
| 25 | |
| 26 GCC_NO_EXECUTABLES | |
| 27 | |
| 28 AM_ENABLE_MULTILIB(, ..) | |
| 29 | |
| 30 target_alias=${target_alias-$host_alias} | |
| 31 AC_SUBST(target_alias) | |
| 32 | |
| 33 AC_CONFIG_HEADERS(config.h) | |
| 34 | |
| 35 AC_LANG_C | |
| 36 # The same as in boehm-gc and libstdc++. Have to borrow it from there. | |
| 37 # We must force CC to /not/ be precious variables; otherwise | |
| 38 # the wrong, non-multilib-adjusted value will be used in multilibs. | |
| 39 # As a side effect, we have to subst CFLAGS ourselves. | |
| 40 | |
| 41 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) | |
| 42 m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
| 43 AC_PROG_CC | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
44 m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
| 0 | 45 |
| 46 AC_SUBST(CFLAGS) | |
| 47 | |
| 48 if test "x$GCC" != "xyes"; then | |
| 49 AC_MSG_ERROR([libssp must be built with GCC]) | |
| 50 fi | |
| 51 AC_PROG_CPP | |
| 52 | |
| 53 AC_MSG_CHECKING([whether -fstack-protector works]) | |
| 54 save_CFLAGS="$CFLAGS" | |
| 55 CFLAGS="$CFLAGS -fstack-protector -Werror" | |
| 56 AC_TRY_COMPILE([ | |
| 57 void __attribute__((noinline)) bar (char *x) | |
| 58 { | |
| 59 __builtin_memset (x, 0, 64); | |
| 60 }],[char buf[64]; bar (buf);], | |
| 61 [AC_MSG_RESULT(yes)], | |
| 62 [AC_MSG_RESULT(no)]) | |
| 63 CFLAGS="$save_CFLAGS" | |
| 64 | |
| 65 AC_MSG_CHECKING([whether hidden visibility is supported]) | |
| 66 AC_TRY_COMPILE([ | |
| 67 void __attribute__((visibility ("hidden"))) bar (void) {}],, | |
| 68 [ssp_hidden=yes],[ssp_hidden=no]) | |
| 69 AC_MSG_RESULT($ssp_hidden) | |
| 70 if test x$ssp_hidden = xyes; then | |
| 71 AC_DEFINE([HAVE_HIDDEN_VISIBILITY],[1],[__attribute__((visibility ("hidden"))) supported]) | |
| 72 fi | |
| 73 | |
| 74 AC_MSG_CHECKING([whether symbol versioning is supported]) | |
| 75 cat > conftest.map <<EOF | |
| 76 FOO_1.0 { | |
| 77 global: *foo*; bar; local: *; | |
| 78 }; | |
| 79 EOF | |
| 80 save_LDFLAGS="$LDFLAGS" | |
| 81 LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map" | |
| 82 if test x$gcc_no_link = xyes; then | |
| 83 # If we cannot link, we cannot build shared libraries, so do not use | |
| 84 # symbol versioning. | |
| 85 ssp_use_symver=no | |
| 86 else | |
| 87 AC_TRY_LINK([int foo;],[],[ssp_use_symver=yes],[ssp_use_symver=no]) | |
| 88 fi | |
| 89 LDFLAGS="$save_LDFLAGS" | |
| 90 AC_MSG_RESULT($ssp_use_symver) | |
| 91 AM_CONDITIONAL(LIBSSP_USE_SYMVER, [test "x$ssp_use_symver" = xyes]) | |
| 92 | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
93 AC_CHECK_HEADERS(alloca.h malloc.h paths.h syslog.h string.h unistd.h fcntl.h stdio.h limits.h) |
| 0 | 94 |
| 95 if test x$gcc_no_link = xyes; then | |
| 96 # Presume the ISO C functions are available; add target-specific | |
| 97 # configuration here if required. | |
| 98 AC_DEFINE(HAVE_STRNCPY) | |
| 99 AC_DEFINE(HAVE_STRNCAT) | |
| 100 else | |
| 101 AC_CHECK_FUNCS(mempcpy strncpy strncat) | |
| 102 fi | |
| 103 | |
| 104 AC_MSG_CHECKING([whether vsnprintf is usable]) | |
| 105 AC_RUN_IFELSE(AC_LANG_PROGRAM([ | |
| 106 #include <stdarg.h> | |
| 107 #include <string.h> | |
| 108 #include <stdio.h> | |
| 109 int foo (char *buf, size_t n, const char *fmt, ...) | |
| 110 { | |
| 111 va_list ap; | |
| 112 int ret; | |
| 113 va_start (ap, fmt); | |
| 114 ret = vsnprintf (buf, n, fmt, ap); | |
| 115 va_end (ap); | |
| 116 return ret; | |
| 117 }], | |
| 118 [char buf@<:@8@:>@; memset (buf, 'A', sizeof (buf)); | |
| 119 if (foo (buf, 4, ".%s.", "CDEFG") != 7) | |
| 120 return 1; | |
| 121 return memcmp (buf, ".CD\0AAAA", sizeof (buf)) != 0;]), | |
| 122 [ssp_have_usable_vsnprintf=define], | |
| 123 [ssp_have_usable_vsnprintf=undef], | |
| 124 [ssp_have_usable_vsnprintf=undef]) | |
| 125 if test "x$ssp_have_usable_vsnprintf" = xdefine; then | |
| 126 AC_MSG_RESULT(yes) | |
| 127 AC_DEFINE([HAVE_USABLE_VSNPRINTF],[1],[vsnprintf is present and works]) | |
| 128 else | |
| 129 AC_MSG_RESULT(no) | |
| 130 fi | |
| 131 AC_SUBST(ssp_have_usable_vsnprintf) | |
| 132 | |
| 133 AM_PROG_LIBTOOL | |
| 134 AC_SUBST(enable_shared) | |
| 135 AC_SUBST(enable_static) | |
| 136 | |
| 137 # Calculate toolexeclibdir | |
| 138 # Also toolexecdir, though it's only used in toolexeclibdir | |
| 139 case ${version_specific_libs} in | |
| 140 yes) | |
| 141 # Need the gcc compiler version to know where to install libraries | |
| 142 # and header files if --enable-version-specific-runtime-libs option | |
| 143 # is selected. | |
| 144 toolexecdir='$(libdir)/gcc/$(target_alias)' | |
| 145 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' | |
| 146 ;; | |
| 147 no) | |
| 148 if test -n "$with_cross_host" && | |
| 149 test x"$with_cross_host" != x"no"; then | |
| 150 # Install a library built with a cross compiler in tooldir, not libdir. | |
| 151 toolexecdir='$(exec_prefix)/$(target_alias)' | |
| 152 toolexeclibdir='$(toolexecdir)/lib' | |
| 153 else | |
| 154 toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
| 155 toolexeclibdir='$(libdir)' | |
| 156 fi | |
| 157 multi_os_directory=`$CC -print-multi-os-directory` | |
| 158 case $multi_os_directory in | |
| 159 .) ;; # Avoid trailing /. | |
| 160 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; | |
| 161 esac | |
| 162 ;; | |
| 163 esac | |
| 164 AC_SUBST(toolexecdir) | |
| 165 AC_SUBST(toolexeclibdir) | |
| 166 | |
| 167 if test ${multilib} = yes; then | |
| 168 multilib_arg="--enable-multilib" | |
| 169 else | |
| 170 multilib_arg= | |
| 171 fi | |
| 172 | |
| 173 AC_CONFIG_FILES([Makefile ssp/ssp.h]) | |
| 174 AC_OUTPUT |