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/Macros.h b/Macros.h
index 31ba37b5..736d31c5 100644
--- a/Macros.h
+++ b/Macros.h
@@ -52,7 +52,7 @@
 // ignore casts discarding const specifier, e.g.
 //     const char []     ->  char * / void *
 //     const char *[2]'  ->  char *const *
-#ifdef __clang__
+#if defined(__clang__)
 #define IGNORE_WCASTQUAL_BEGIN  _Pragma("clang diagnostic push") \
                                 _Pragma("clang diagnostic ignored \"-Wcast-qual\"")
 #define IGNORE_WCASTQUAL_END    _Pragma("clang diagnostic pop")