diff options
Diffstat (limited to 'm4/acinclude.m4')
| -rw-r--r-- | m4/acinclude.m4 | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/m4/acinclude.m4 b/m4/acinclude.m4 deleted file mode 100644 index 845c8286..00000000 --- a/m4/acinclude.m4 +++ /dev/null @@ -1,179 +0,0 @@ -dnl acinclude.m4 - configure macros used by pacman and libalpm -dnl Add some custom macros for pacman and libalpm - -dnl GCC_STACK_PROTECT_LIB -dnl adds -lssp to LIBS if it is available -dnl ssp is usually provided as part of libc, but was previously a separate lib -dnl It does not hurt to add -lssp even if libc provides SSP - in that case -dnl libssp will simply be ignored. -AC_DEFUN([GCC_STACK_PROTECT_LIB],[ - AC_CACHE_CHECK([whether libssp exists], ssp_cv_lib, - [ssp_old_libs="$LIBS" - LIBS="$LIBS -lssp" - AC_TRY_LINK(,, ssp_cv_lib=yes, ssp_cv_lib=no) - LIBS="$ssp_old_libs" - ]) - if test $ssp_cv_lib = yes; then - LIBS="$LIBS -lssp" - fi -]) - -dnl GCC_STACK_PROTECT_CC -dnl checks -fstack-protector-all with the C compiler, if it exists then updates -dnl CFLAGS and defines ENABLE_SSP_CC -AC_DEFUN([GCC_STACK_PROTECT_CC],[ - AC_LANG_ASSERT(C) - if test "X$CC" != "X"; then - AC_CACHE_CHECK([whether ${CC} accepts -fstack-protector-all], - ssp_cv_cc, - [ssp_old_cflags="$CFLAGS" - CFLAGS="$CFLAGS -fstack-protector-all" - AC_TRY_COMPILE(,, ssp_cv_cc=yes, ssp_cv_cc=no) - CFLAGS="$ssp_old_cflags" - ]) - if test $ssp_cv_cc = yes; then - CFLAGS="$CFLAGS -fstack-protector-all" - AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.]) - fi - fi -]) - -dnl GCC_STACK_CLASH_PROTECTION -dnl check -fstack-clash-protection with the C compiler, if it exists then -dnl updates CFLAGS -AC_DEFUN([GCC_STACK_CLASH_PROTECTION],[ - AC_LANG_ASSERT(C) - if test "X$CC" != "X"; then - AC_CACHE_CHECK([whether ${CC} accepts -fstack-clash-protection], - scp_cv_cc, - [scp_old_cflags="$CFLAGS" - CFLAGS="$CFLAGS -fstack-clash-protection" - AC_TRY_COMPILE(,, scp_cv_cc=yes, scp_cv_cc=no) - CFLAGS="$scp_old_cflags" - ]) - if test $scp_cv_cc = yes; then - CFLAGS="$CFLAGS -fstack-clash-protection" - fi - fi -]) - -dnl GCC_FORTIFY_SOURCE_CC -dnl checks -D_FORTIFY_SOURCE with the C compiler, if it exists then updates -dnl CPPFLAGS -AC_DEFUN([GCC_FORTIFY_SOURCE_CC],[ - AC_LANG_ASSERT(C) - if test "X$CC" != "X"; then - AC_MSG_CHECKING(for FORTIFY_SOURCE support) - fs_old_cppflags="$CPPFLAGS" - fs_old_cflags="$CFLAGS" - CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2" - CFLAGS="$CFLAGS -Werror" - AC_TRY_COMPILE([#include <features.h>], [ - int main() { - #if !(__GNUC_PREREQ (4, 1) ) - #error No FORTIFY_SOURCE support - #endif - return 0; - } - ], [ - AC_MSG_RESULT(yes) - CFLAGS="$fs_old_cflags" - ], [ - AC_MSG_RESULT(no) - CPPFLAGS="$fs_old_cppflags" - CFLAGS="$fs_old_cflags" - ]) - fi -]) - -dnl GCC_VISIBILITY_CC -dnl checks -fvisibility=internal with the C compiler, if it exists then -dnl defines ENABLE_VISIBILITY_CC in both configure script and Makefiles -AC_DEFUN([GCC_VISIBILITY_CC],[ - AC_LANG_ASSERT(C) - if test "X$CC" != "X"; then - AC_CACHE_CHECK([whether ${CC} accepts -fvisibility=internal], - visibility_cv_cc, - [visibility_old_cflags="$CFLAGS" - CFLAGS="$CFLAGS -fvisibility=internal" - AC_TRY_COMPILE(,, visibility_cv_cc=yes, visibility_cv_cc=no) - CFLAGS="$visibility_old_cflags" - ]) - if test $visibility_cv_cc = yes; then - AC_DEFINE([ENABLE_VISIBILITY_CC], 1, [Define if symbol visibility C support is enabled.]) - fi - AM_CONDITIONAL([ENABLE_VISIBILITY_CC], test "x$visibility_cv_cc" = "xyes") - fi -]) - -dnl CFLAGS_ADD(PARAMETER, VARIABLE) -dnl Adds parameter to VARIABLE if the compiler supports it. For example, -dnl CFLAGS_ADD([-Wall],[WARN_FLAGS]). -AC_DEFUN([CFLAGS_ADD], -[AS_VAR_PUSHDEF([my_cflags], [cflags_cv_warn_$1])dnl -AC_CACHE_CHECK([whether compiler handles $1], [my_cflags], [ - save_CFLAGS="$CFLAGS" - CFLAGS="${CFLAGS} -Werror=unknown-warning-option" - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], - [], - [CFLAGS="$save_CFLAGS"]) - CFLAGS="${CFLAGS} $1" - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], - [AS_VAR_SET([my_cflags], [yes])], - [AS_VAR_SET([my_cflags], [no])]) - CFLAGS="$save_CFLAGS" -]) -AS_VAR_PUSHDEF([new_cflags], [[$2]])dnl -AS_VAR_IF([my_cflags], [yes], [AS_VAR_APPEND([new_cflags], [" $1"])]) -AS_VAR_POPDEF([new_cflags])dnl -AS_VAR_POPDEF([my_cflags])dnl -m4_ifval([$2], [AS_LITERAL_IF([$2], [AC_SUBST([$2])], [])])dnl -]) - -dnl Checks for getmntinfo and determines whether it uses statfs or statvfs -AC_DEFUN([FS_STATS_TYPE], - [AC_CACHE_CHECK([filesystem statistics type], fs_stats_cv_type, - [AC_CHECK_FUNC(getmntinfo, - [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([[ -# include <sys/param.h> -# include <sys/mount.h> -#if HAVE_SYS_UCRED_H -#include <sys/ucred.h> -#endif -extern int getmntinfo (struct statfs **, int); -]], - [])], - [fs_stats_cv_type="struct statfs"], - [fs_stats_cv_type="struct statvfs"])], - [AC_CHECK_FUNC(getmntent, - [fs_stats_cv_type="struct statvfs"])] - )] - ) - AC_DEFINE_UNQUOTED(FSSTATSTYPE, [$fs_stats_cv_type], - [Defined as the filesystem stats type ('statvfs' or 'statfs')]) - if test $ac_cv_func_getmntinfo = yes; then - if test "$fs_stats_cv_type" = "struct statvfs"; then - AC_DEFINE([HAVE_GETMNTINFO_STATVFS], 1, [Define if getmntinfo() uses statvfs.]) - else - AC_DEFINE([HAVE_GETMNTINFO_STATFS], 1, [Define if getmntinfo() uses statfs.]) - fi - fi -]) - -dnl Checks for PATH_MAX and defines it if not present -AC_DEFUN([PATH_MAX_DEFINED], - [AC_CACHE_CHECK([PATH_MAX defined], path_max_cv_defined, - [AC_EGREP_CPP(yes, [[ -#include <limits.h> -#if defined(PATH_MAX) -yes -#endif -]], - [path_max_cv_defined=yes], - [path_max_cv_defined=no])] - ) - if test $path_max_cv_defined = no; then - AC_DEFINE([PATH_MAX], 4096, [Define if PATH_MAX is undefined by limits.h.]) - fi -]) |