Jeff Mahoney eb7b42003a btrfs-progs: build: detect whether -std=gnu90 is supported ... GCC releases prior to 4.5.0 don't support -std=gnu90 so btrfs-progs won't build at all on older distros. We can detect whether the compiler supports -std=gnu90 and fall back to -std=gnu89 if it doesn't. AX_CHECK_COMPILE_FLAG is the right way to do this, but it depends on autoconf 2.64. AX_GCC_VERSION has been deprecated, so we'll use that only for earlier autoconf versions so we can drop it when we drop support for older autoconf releases. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>		2018-06-07 16:37:35 +02:00
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ax_check_compile_flag.m4	btrfs-progs: build: detect whether -std=gnu90 is supported	2018-06-07 16:37:35 +02:00
ax_check_define.m4	btrfs-progs: build: add m4 macros for AC_CHECK_DEFINE	2016-06-24 14:05:44 +02:00
ax_gcc_version.m4	btrfs-progs: build: detect whether -std=gnu90 is supported	2018-06-07 16:37:35 +02:00
btrfs_detect_cstd.m4	btrfs-progs: build: detect whether -std=gnu90 is supported	2018-06-07 16:37:35 +02:00