Use `#if defined()` syntax when `#elif defined()` is present

This prefers the `#if defined()` syntax over the `#ifdef` variant
whenever there's also a `#elif defined()` clause, thus making the
multiple branching structure more obvious and the overall use
more consistent.

1 files changed, 1 insertions, 1 deletions

diff --git a/CRT.c b/CRT.c
index 257da167..9565e10a 100644
--- a/CRT.c
+++ b/CRT.c
@@ -669,7 +669,7 @@ static int stderrRedirectNewFd = -1;
 static int stderrRedirectBackupFd = -1;
 
 static int createStderrCacheFile(void) {
-#ifdef HAVE_MEMFD_CREATE
+#if defined(HAVE_MEMFD_CREATE)
    return memfd_create("htop.stderr-redirect", 0);
 #elif defined(O_TMPFILE)
    return open("/tmp", O_TMPFILE | O_CREAT | O_EXCL | O_RDWR, S_IRUSR | S_IWUSR);