| CFLAGS="$CFLAGS_1" |
CFLAGS="$CFLAGS_1" |
| AC_MSG_RESULT($ac_align_labels) |
AC_MSG_RESULT($ac_align_labels) |
| |
|
| |
# Try if GCC understands -falign-loops=1 |
| |
AC_MSG_CHECKING([if $CC understands -falign-loops=1]) |
| |
CFLAGS_1="$CFLAGS" |
| |
CFLAGS="$CFLAGS -falign-loops=1" |
| |
AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no) |
| |
CFLAGS="$CFLAGS_1" |
| |
AC_MSG_RESULT($ac_align_loops) |
| |
|
| |
# Try if GCC understands -falign-jumps=1 |
| |
AC_MSG_CHECKING([if $CC understands -falign-jumps=1]) |
| |
CFLAGS_1="$CFLAGS" |
| |
CFLAGS="$CFLAGS -falign-jumps=1" |
| |
AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no) |
| |
CFLAGS="$CFLAGS_1" |
| |
AC_MSG_RESULT($ac_align_jumps) |
| |
|
| # Try if GCC understands __attribute__((unused)) |
# Try if GCC understands __attribute__((unused)) |
| AC_MSG_CHECKING([how to suppress 'unused variable' warnings]) |
AC_MSG_CHECKING([how to suppress 'unused variable' warnings]) |
| AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',) |
AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',) |
