gcc_struct, old fish, but reinterpreted: https://github.com/assimp/assimp/commit/92f4c84488a11d863d2019093f01123d7688ff4b

include/assimp/Compiler/pushpack1.h

@@ -1,46 +1,46 @@
-
-
-// ===============================================================================
-// May be included multiple times - sets structure packing to 1 
-// for all supported compilers. #include <poppack1.h> reverts the changes.
-//
-// Currently this works on the following compilers:
-// MSVC 7,8,9
-// GCC
-// BORLAND (complains about 'pack state changed but not reverted', but works)
-// Clang
-//
-//
-// USAGE:
-//
-// struct StructToBePacked {
-// } PACK_STRUCT;
-//
-// ===============================================================================
-
-#ifdef AI_PUSHPACK_IS_DEFINED
-#	error poppack1.h must be included after pushpack1.h
-#endif
-
-#if defined(_MSC_VER) ||  defined(__BORLANDC__) ||	defined (__BCPLUSPLUS__)
-#	pragma pack(push,1)
-#	define PACK_STRUCT
-#elif defined( __GNUC__ )
-#	if defined(__clang__)
-#		define PACK_STRUCT	__attribute__((__packed__))
-#	else
-#		define PACK_STRUCT	__attribute__((gcc_struct, __packed__))
-#	endif
-#else
-#	error Compiler not supported
-#endif
-
-#if defined(_MSC_VER)
-
-// C4103: Packing was changed after the inclusion of the header, propably missing #pragma pop
-#	pragma warning (disable : 4103) 
-#endif
-
-#define AI_PUSHPACK_IS_DEFINED
-
-
+
+
+// ===============================================================================
+// May be included multiple times - sets structure packing to 1 
+// for all supported compilers. #include <poppack1.h> reverts the changes.
+//
+// Currently this works on the following compilers:
+// MSVC 7,8,9
+// GCC
+// BORLAND (complains about 'pack state changed but not reverted', but works)
+// Clang
+//
+//
+// USAGE:
+//
+// struct StructToBePacked {
+// } PACK_STRUCT;
+//
+// ===============================================================================
+
+#ifdef AI_PUSHPACK_IS_DEFINED
+#	error poppack1.h must be included after pushpack1.h
+#endif
+
+#if defined(_MSC_VER) ||  defined(__BORLANDC__) ||	defined (__BCPLUSPLUS__)
+#	pragma pack(push,1)
+#	define PACK_STRUCT
+#elif defined( __GNUC__ )
+#	if !defined(HOST_MINGW)
+#		define PACK_STRUCT	__attribute__((__packed__))
+#	else
+#		define PACK_STRUCT	__attribute__((gcc_struct, __packed__))
+#	endif
+#else
+#	error Compiler not supported
+#endif
+
+#if defined(_MSC_VER)
+
+// C4103: Packing was changed after the inclusion of the header, propably missing #pragma pop
+#	pragma warning (disable : 4103) 
+#endif
+
+#define AI_PUSHPACK_IS_DEFINED
+
+