stbi: fix thread local selector

* GCC < 5 supports __thread and GCC >= 5 supports C11 with _Thread_local * Skip _Thread_local for MSVC because it may not be supported
ago%!(EXTRA string=5 years) · 8cb98357de
parent f54acd4e13
commit 8cb98357de
1 changed files with 4 additions and 4 deletions
--- a/stb_image.h
+++ b/stb_image.h
@ -574,13 +574,13 @@ STBIDEF int   stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const ch
 #ifndef STBI_NO_THREAD_LOCALS
   #if defined(__cplusplus) &&  __cplusplus >= 201103L
      #define STBI_THREAD_LOCAL       thread_local
-   #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
-      #define STBI_THREAD_LOCAL       _Thread_local
-   #elif defined(__GNUC__)
+   #elif defined(__GNUC__) && __GNUC__ < 5
      #define STBI_THREAD_LOCAL       __thread
   #elif defined(_MSC_VER)
      #define STBI_THREAD_LOCAL       __declspec(thread)
-#endif
+   #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__)
+      #define STBI_THREAD_LOCAL       _Thread_local
+   #endif
 #endif

 #ifdef _MSC_VER