[PATCH] f2fs-tools: fall back to the original version check when clock_gettime is not supported

[Daeho Jeong]

From: Daeho Jeong <daehojeong@xxxxxxxxxx>

In lower versions than macOS 10.12, they don't support clock_gettime
function. It breaks the build, so we need to fall back to the original
kernel version check algorithm, in that case.

Signed-off-by: Daeho Jeong <daehojeong@xxxxxxxxxx>
---
 fsck/mount.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fsck/mount.c b/fsck/mount.c
index 7c4c681..c928a15 100644
--- a/fsck/mount.c
+++ b/fsck/mount.c
@@ -975,6 +975,16 @@ int validate_super_block(struct f2fs_sb_info *sbi, enum SB_ADDR sb_addr)
 		MSG(0, "Info: MKFS version\n  \"%s\"\n", c.init_version);
 		MSG(0, "Info: FSCK version\n  from \"%s\"\n    to \"%s\"\n",
 					c.sb_version, c.version);
+#if defined(__APPLE__)
+		if (!c.no_kernel_check &&
+			memcmp(c.sb_version, c.version,	VERSION_NAME_LEN)) {
+			c.auto_fix = 0;
+			c.fix_on = 1;
+			memcpy(sbi->raw_super->version,
+					c.version, VERSION_NAME_LEN);
+			update_superblock(sbi->raw_super, SB_MASK(sb_addr));
+		}
+#else
 		if (!c.no_kernel_check) {
 			struct timespec t;
 			u32 prev_time, cur_time, time_diff;
@@ -1007,6 +1017,7 @@ int validate_super_block(struct f2fs_sb_info *sbi, enum SB_ADDR sb_addr)
 			update_superblock(sbi->raw_super, SB_MASK(sb_addr));
 		}
 out:
+#endif
 		print_sb_state(sbi->raw_super);
 		return 0;
 	}
-- 
2.33.0.685.g46640cef36-goog