Unbreak Linux builds with -fvisibility=hidden.

diff --git a/include/GL/glu.h b/include/GL/glu.h
index d82103d..7db4b70 100644 (file)
--- a/include/GL/glu.h
+++ b/include/GL/glu.h
@@ -44,22 +44,17 @@
 #define GLAPIENTRYP GLAPIENTRY *
 #endif
 
-#ifdef GLAPI
-#undef GLAPI
-#endif
-
-#  if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GLU32)
-#    define GLAPI __declspec(dllexport)
-#  elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
-#    define GLAPI __declspec(dllimport)
-#  else /* for use with static link lib build of Win32 edition only */
-#    define GLAPI extern
-#  endif /* _STATIC_MESA support */
-
-
-#ifndef GLAPI
-#define GLAPI
-#endif
+#if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GLU32)
+# undef GLAPI
+# define GLAPI __declspec(dllexport)
+#elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL)
+/* tag specifying we're building for DLL runtime support */
+# undef GLAPI
+# define GLAPI __declspec(dllimport)
+#elif !defined(GLAPI)
+/* for use with static link lib build of Win32 edition only */
+# define GLAPI extern
+#endif /* _STATIC_MESA support */
 
 #ifdef __cplusplus
 extern "C" {