mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2025-02-25 08:18:27 +03:00
a15dac42df
When testing compiler flags, we only need to do compile test. Otherwise, configure will fail with "configure: error: cannot run test program while cross compiling" when cross compiling. Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2191
21 lines
570 B
Plaintext
21 lines
570 B
Plaintext
dnl #
|
|
dnl # Check if gcc supports -fno-aggressive-loop-optimizations
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_NO_AGGRESSIVE_LOOP_OPTIMIZATIONS], [
|
|
AC_MSG_CHECKING([for -fno-aggressive-loop-optimizations support])
|
|
|
|
saved_flags="$CFLAGS"
|
|
CFLAGS="$CFLAGS -fno-aggressive-loop-optimizations"
|
|
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
|
|
NO_AGGRESSIVE_LOOP_OPTIMIZATIONS=-fno-aggressive-loop-optimizations
|
|
AC_MSG_RESULT([yes])
|
|
], [
|
|
NO_AGGRESSIVE_LOOP_OPTIMIZATIONS=
|
|
AC_MSG_RESULT([no])
|
|
])
|
|
|
|
CFLAGS="$saved_flags"
|
|
AC_SUBST([NO_AGGRESSIVE_LOOP_OPTIMIZATIONS])
|
|
])
|