If we have newer kernel headers which define FALLOC_FL_PUNCH_HOLE, but we
are on an older glibc which lacks fallocate, we end up trying to use the
func anyways. Check the ifdef that autoconf already set up for us.
Reported-by: Ortwin Glueck <odi@xxxxxx>
Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
---
lib/ext2fs/unix_io.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/lib/ext2fs/unix_io.c b/lib/ext2fs/unix_io.c
index 9f0613a..da3f8fd 100644
--- a/lib/ext2fs/unix_io.c
+++ b/lib/ext2fs/unix_io.c
@@ -905,7 +905,7 @@ static errcode_t unix_discard(io_channel channel, unsigned long long block,
goto unimplemented;
#endif
} else {
-#ifdef FALLOC_FL_PUNCH_HOLE
+#if defined(HAVE_FALLOCATE) && defined(FALLOC_FL_PUNCH_HOLE)
/*
* If we are not on block device, try to use punch hole
* to reclaim free space.
--
1.7.8.4
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