Use #if, not #ifdef with HAVE_ macros.

Use #if !, not #ifndef with HAVE_ macros.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/dd.c b/src/dd.c
index 538d74008..276dce1b9 100644
--- a/src/dd.c
+++ b/src/dd.c
@@ -1106,7 +1106,7 @@ main (int argc, char **argv)
       output_fd = open (output_file, omode, 0666);
       if (output_fd < 0)
 	error (1, errno, "%s", output_file);
-#ifdef HAVE_FTRUNCATE
+#if HAVE_FTRUNCATE
       if (seek_record != 0 && !(conversions_mask & C_NOTRUNC))
 	{
 	  off_t o = seek_record * output_blocksize;