diff options
Diffstat (limited to 'm4/optimizations.m4')
| -rw-r--r-- | m4/optimizations.m4 | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/m4/optimizations.m4 b/m4/optimizations.m4 index 85d088079..a1f2f2f00 100644 --- a/m4/optimizations.m4 +++ b/m4/optimizations.m4 @@ -9,7 +9,7 @@ dnl AC_DEFUN([AC_OPTIMIZATIONS], [ AC_ARG_ENABLE([optimizations], - AC_HELP_STRING([--disable-optimizations], [Don't try to guess what optimization to enable])) + AS_HELP_STRING([--disable-optimizations], [Don't try to guess what optimization to enable])) if test "x$enable_optimizations" != "xno"; then INLINE_FUNCTIONS=-finline-functions @@ -17,11 +17,6 @@ AC_DEFUN([AC_OPTIMIZATIONS], [ if test "$GCC" = yes; then dnl dnl check cflags not supported by all gcc versions - dnl eg: -mpreferred-stack-boundary=2 and 2.91.66, - dnl and gcc-2.7.2.3 support a bit less options - dnl - AC_TRY_CFLAGS("-mpreferred-stack-boundary=2", - m_psb="-mpreferred-stack-boundary=2", m_psb="") AC_TRY_CFLAGS("-fschedule-insns2", f_si="-fschedule-insns2", f_si="") AC_TRY_CFLAGS("-mwide-multiply", m_wm="-mwide-multiply", m_wm="") dnl @@ -58,7 +53,7 @@ AC_DEFUN([AC_OPTIMIZATIONS], [ AC_MSG_CHECKING(for sane -Wpointer-arith) SAVE_CFLAGS="$CFLAGS" CFLAGS="-O2 -Wpointer-arith -Werror $CFLAGS" - AC_TRY_COMPILE([#include <string.h>],[int a; memset(&a, 0, sizeof(int));], + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <string.h>]], [[int a; memset(&a, 0, sizeof(int));]])], [AC_MSG_RESULT(yes); CFLAGS="-Wpointer-arith $SAVE_CFLAGS"], [AC_MSG_RESULT(no); CFLAGS="$SAVE_CFLAGS"]); @@ -67,8 +62,7 @@ AC_DEFUN([AC_OPTIMIZATIONS], [ AC_MSG_CHECKING(for gcc 3.4.0 or later) newGCC="`"$CC" -dumpversion | - awk 'BEGIN { FS = "." }; - 1 { if ((@S|@1 * 10000 + @S|@2 * 100 + @S|@3) >= 30400) { print "yes" } }' + awk -F. '{ if ((@S|@1 * 10000 + @S|@2 * 100 + @S|@3) >= 30400) { print "yes" } }' `" AC_MSG_RESULT(${newGCC:-no - assuming bugginess in -finline-functions}) test "$newGCC" = yes || INLINE_FUNCTIONS=-fno-inline-functions |