diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 1fc2d0e29..6755e3ca5 100644 --- a/configure.in +++ b/configure.in @@ -481,8 +481,29 @@ AC_RUN_IFELSE( ])], [ AC_MSG_RESULT([yes]) + AC_MSG_CHECKING([whether $CC supports -march=i686 (and we can run it)]) + OLD_CFLAGS="$CFLAGS" + OLD_LDFLAGS="$LDFLAGS" CFLAGS="$CFLAGS -march=i686" LDFLAGS="$LDFLAGS -march=i686" + AC_RUN_IFELSE( + [AC_LANG_SOURCE([ + int main(int argc, char **argv) { return 0; } + ])], + [ + AC_MSG_RESULT([yes]) + ], + [ + AC_MSG_RESULT([no]) + CFLAGS="$OLD_CFLAGS" + LDFLAGS="$OLD_LDFLAGS" + ], + [ + AC_MSG_RESULT([guessing no]) + CFLAGS="$OLD_CFLAGS" + LDFLAGS="$OLD_LDFLAGS" + ] + ) ], [ AC_MSG_RESULT([no]) |