Fix a number of MINGW32 issues

3 files changed, 47 insertions, 38 deletions

diff --git a/include/GL/gl.h b/include/GL/gl.h
index a388de36e4..09195aa136 100644
--- a/include/GL/gl.h
+++ b/include/GL/gl.h
@@ -58,7 +58,11 @@
 #  else /* for use with static link lib build of Win32 edition only */
 #    define GLAPI extern
 #  endif /* _STATIC_MESA support */
-#  define GLAPIENTRY __stdcall
+#  if defined(__MINGW32__) && defined(GL_NO_STDCALL)  /* The generated DLLs by MingW with STDCALL are not compatible with the ones done by Microsoft's compilers */
+#    define GLAPIENTRY 
+#  else
+#    define GLAPIENTRY __stdcall
+#  endif
 #elif defined(__CYGWIN__) && defined(USE_OPENGL32) /* use native windows opengl32 */
 #  define GLAPI extern
 #  define GLAPIENTRY __stdcall
@@ -84,7 +88,8 @@
 #include <windows.h>
 #endif
 
-#if defined(_WIN32) && !defined(_WINGDI_) && !defined(_GNU_H_WINDOWS32_DEFINES) && !defined(OPENSTEP) && !defined(__CYGWIN__)
+#if defined(_WIN32) && !defined(_WINGDI_) && !defined(_GNU_H_WINDOWS32_DEFINES) \
+     && !defined(OPENSTEP) && !defined(__CYGWIN__) || defined(__MINGW32__)
 #include <GL/mesa_wgl.h>
 #endif
 
@@ -2161,11 +2166,11 @@ typedef void (APIENTRYP PFNGLMULTITEXCOORD4SVARBPROC) (GLenum target, const GLsh
 #define GL_DEBUG_PRINT_MESA               0x875A
 #define GL_DEBUG_ASSERT_MESA              0x875B
 
-GLAPI GLhandleARB APIENTRY glCreateDebugObjectMESA (void);
-GLAPI void APIENTRY glClearDebugLogMESA (GLhandleARB obj, GLenum logType, GLenum shaderType);
-GLAPI void APIENTRY glGetDebugLogMESA (GLhandleARB obj, GLenum logType, GLenum shaderType, GLsizei maxLength,
+GLAPI GLhandleARB GLAPIENTRY glCreateDebugObjectMESA (void);
+GLAPI void GLAPIENTRY glClearDebugLogMESA (GLhandleARB obj, GLenum logType, GLenum shaderType);
+GLAPI void GLAPIENTRY glGetDebugLogMESA (GLhandleARB obj, GLenum logType, GLenum shaderType, GLsizei maxLength,
                                          GLsizei *length, GLcharARB *debugLog);
-GLAPI GLsizei APIENTRY glGetDebugLogLengthMESA (GLhandleARB obj, GLenum logType, GLenum shaderType);
+GLAPI GLsizei GLAPIENTRY glGetDebugLogLengthMESA (GLhandleARB obj, GLenum logType, GLenum shaderType);
 
 #endif /* GL_MESA_shader_debug */
 
diff --git a/include/GL/glut.h b/include/GL/glut.h
index e0fad6e5cb..e286349f9b 100644
--- a/include/GL/glut.h
+++ b/include/GL/glut.h
@@ -10,6 +10,10 @@
 #include <GL/gl.h>
 #include <GL/glu.h>
 
+#if defined(__MINGW32__)
+#include <GL/mesa_wgl.h>
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -108,7 +112,7 @@ extern _CRTIMP void __cdecl exit(int);
    and redifinition of Windows system defs, also removes requirement of
    pretty much any standard windows header from this file */
 
-#if (_MSC_VER >= 800) || defined(__MINGW32__) || defined(_STDCALL_SUPPORTED) || defined(__CYGWIN32__)
+#if (_MSC_VER >= 800) || defined(_STDCALL_SUPPORTED) || defined(__CYGWIN32__)
 #	define GLUTAPIENTRY __stdcall
 #else
 #	define GLUTAPIENTRY
@@ -130,8 +134,9 @@ extern _CRTIMP void __cdecl exit(int);
 #		pragma message( "----: being multiply defined you should include WINDOWS.H priot to gl/glut.h" )
 #	endif
 #	define CALLBACK __stdcall
-typedef int (GLUTAPIENTRY *PROC)();
+
 #if !defined(__MINGW32__)
+	typedef int (GLUTAPIENTRY *PROC)();
 	typedef void *HGLRC;
 	typedef void *HDC;
 #endif
diff --git a/include/GL/mesa_wgl.h b/include/GL/mesa_wgl.h
index acc7eac2a7..1d774571d9 100644
--- a/include/GL/mesa_wgl.h
+++ b/include/GL/mesa_wgl.h
@@ -26,11 +26,12 @@
 /* prototypes for the Mesa WGL functions */
 /* relocated here so that I could make GLUT get them properly */
 
-#define _mesa_wgl_h_
-
 #ifndef _mesa_wgl_h_
 #define _mesa_wgl_h_
 
+#if defined(__MINGW32__)
+#  define __W32API_USE_DLLIMPORT__
+#endif
 
 #include <GL/gl.h>
 
@@ -39,23 +40,16 @@ extern "C" {
 #endif
 
 
-#if !defined(OPENSTEP) && (defined(__WIN32__) || defined(__CYGWIN32__))
-#  if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
-#    define GLAPI __declspec(dllexport)
-#    define WGLAPI __declspec(dllexport)
-#  elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
-#    define GLAPI __declspec(dllimport)
-#    define WGLAPI __declspec(dllimport)
-#  else /* for use with static link lib build of Win32 edition only */
-#    define GLAPI extern
-#    define WGLAPI __declspec(dllimport)
-#  endif /* _STATIC_MESA support */
-#  define GLAPIENTRY __stdcall
-#else
-/* non-Windows compilation */
-#  define GLAPI extern
-#  define GLAPIENTRY
-#endif /* WIN32 / CYGWIN32 bracket */
+#ifndef WGLAPI
+#define WGLAPI GLAPI
+#endif
+
+#if defined(__MINGW32__)
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN 1
+#  endif
+#  include <windows.h>
+#endif
 
 
 #if defined(_WIN32) && !defined(_WINGDI_) && !defined(_GNU_H_WINDOWS32_DEFINES) && !defined(OPENSTEP)
@@ -80,23 +74,25 @@ typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR, *PPIXELFORMATDESC
 #  pragma warning( disable : 4273 ) /* 'function' : inconsistent DLL linkage. dllexport assumed. */
 #endif
 
-WGLAPI int   GLAPIENTRY wglDeleteContext(HGLRC);
-WGLAPI int   GLAPIENTRY wglMakeCurrent(HDC,HGLRC);
+
 WGLAPI int   GLAPIENTRY wglSetPixelFormat(HDC, int, const PIXELFORMATDESCRIPTOR *);
 WGLAPI int   GLAPIENTRY wglSwapBuffers(HDC hdc);
-WGLAPI HDC   GLAPIENTRY wglGetCurrentDC(void);
-WGLAPI HGLRC GLAPIENTRY wglCreateContext(HDC);
-WGLAPI HGLRC GLAPIENTRY wglCreateLayerContext(HDC,int);
-WGLAPI HGLRC GLAPIENTRY wglGetCurrentContext(void);
-WGLAPI PROC  GLAPIENTRY wglGetProcAddress(const char*);
 WGLAPI int   GLAPIENTRY wglChoosePixelFormat(HDC, const PIXELFORMATDESCRIPTOR *);
+WGLAPI int   GLAPIENTRY wglDescribePixelFormat(HDC,int, unsigned int, LPPIXELFORMATDESCRIPTOR);
+WGLAPI int   GLAPIENTRY wglGetPixelFormat(HDC hdc);
+
+
+#if defined(GL_NO_STDCALL) || !defined(__MINGW32__)
 WGLAPI int   GLAPIENTRY wglCopyContext(HGLRC, HGLRC, unsigned int);
+WGLAPI HGLRC GLAPIENTRY wglCreateContext(HDC);
+WGLAPI HGLRC GLAPIENTRY wglCreateLayerContext(HDC,int);
 WGLAPI int   GLAPIENTRY wglDeleteContext(HGLRC);
 WGLAPI int   GLAPIENTRY wglDescribeLayerPlane(HDC, int, int, unsigned int,LPLAYERPLANEDESCRIPTOR);
-WGLAPI int   GLAPIENTRY wglDescribePixelFormat(HDC,int, unsigned int, LPPIXELFORMATDESCRIPTOR);
+WGLAPI HGLRC GLAPIENTRY wglGetCurrentContext(void);
+WGLAPI HDC   GLAPIENTRY wglGetCurrentDC(void);
 WGLAPI int   GLAPIENTRY wglGetLayerPaletteEntries(HDC, int, int, int,COLORREF *);
-WGLAPI int   GLAPIENTRY wglGetPixelFormat(HDC hdc);
-WGLAPI int   GLAPIENTRY wglMakeCurrent(HDC, HGLRC);
+WGLAPI PROC  GLAPIENTRY wglGetProcAddress(const char*);
+WGLAPI int   GLAPIENTRY wglMakeCurrent(HDC,HGLRC);
 WGLAPI int   GLAPIENTRY wglRealizeLayerPalette(HDC, int, int);
 WGLAPI int   GLAPIENTRY wglSetLayerPaletteEntries(HDC, int, int, int,const COLORREF *);
 WGLAPI int   GLAPIENTRY wglShareLists(HGLRC, HGLRC);
@@ -105,12 +101,15 @@ WGLAPI int   GLAPIENTRY wglUseFontBitmapsA(HDC, unsigned long, unsigned long, un
 WGLAPI int   GLAPIENTRY wglUseFontBitmapsW(HDC, unsigned long, unsigned long, unsigned long);
 WGLAPI int   GLAPIENTRY wglUseFontOutlinesA(HDC, unsigned long, unsigned long, unsigned long, float,float, int, LPGLYPHMETRICSFLOAT);
 WGLAPI int   GLAPIENTRY wglUseFontOutlinesW(HDC, unsigned long, unsigned long, unsigned long, float,float, int, LPGLYPHMETRICSFLOAT);
+#endif
+
+#ifndef __MINGW32__
 WGLAPI int   GLAPIENTRY SwapBuffers(HDC);
 WGLAPI int   GLAPIENTRY ChoosePixelFormat(HDC,const PIXELFORMATDESCRIPTOR *);
 WGLAPI int   GLAPIENTRY DescribePixelFormat(HDC,int,unsigned int,LPPIXELFORMATDESCRIPTOR);
 WGLAPI int   GLAPIENTRY GetPixelFormat(HDC);
 WGLAPI int   GLAPIENTRY SetPixelFormat(HDC,int,const PIXELFORMATDESCRIPTOR *);
-
+#endif
 
 #ifndef WGL_ARB_extensions_string
 #define WGL_ARB_extensions_string 1