e2fsprogs: fix compile error and warnings for old gcc versions

[tools/e2fsprogs.git] / lib / ext2fs / unix_io.c

diff --git a/lib/ext2fs/unix_io.c b/lib/ext2fs/unix_io.c
index 18a2e5f..7a4c9bf 100644 (file)
--- a/lib/ext2fs/unix_io.c
+++ b/lib/ext2fs/unix_io.c
@@ -1127,8 +1127,10 @@ unimplemented:
 }
 
 /* parameters might not be used if OS doesn't support zeroout */
+#if __GNUC_PREREQ (4, 6)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
 static errcode_t unix_zeroout(io_channel channel, unsigned long long block,
                              unsigned long long count)
 {
@@ -1195,7 +1197,9 @@ err:
 unimplemented:
        return EXT2_ET_UNIMPLEMENTED;
 }
+#if __GNUC_PREREQ (4, 6)
 #pragma GCC diagnostic pop
+#endif
 
 static struct struct_io_manager struct_unix_manager = {
        .magic          = EXT2_ET_MAGIC_IO_MANAGER,