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--- src/ft2_unicode.c.orig 2025-09-09 06:08:58 UTC
+++ src/ft2_unicode.c
@@ -4,20 +4,21 @@
#endif
// for detecting if musl or glibc is used
-#if !defined _WIN32 && !defined __APPLE__
- #ifndef _GNU_SOURCE
- #define _GNU_SOURCE
- #include <features.h>
- #ifndef __USE_GNU
- #define __MUSL__
- #endif
- #undef _GNU_SOURCE /* don't contaminate other includes unnecessarily */
- #else
- #include <features.h>
- #ifndef __USE_GNU
- #define __MUSL__
- #endif
- #endif
+#if defined(__linux__)
+ /* Only Linux has glibc's <features.h>. On BSDs (including FreeBSD) and others,
+ skip this block to avoid a missing-header error. */
+ #ifdef __has_include
+ #if __has_include(<features.h>)
+ #include <features.h>
+ #endif
+ #else
+ /* If the compiler doesn't support __has_include, assume features.h exists on glibc. */
+ #include <features.h>
+ #endif
+ /* If <features.h> didn't define glibc's GNU extensions, assume musl. */
+ #ifndef __USE_GNU
+ #define __MUSL__
+ #endif
#endif
#include <stdlib.h>
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