[cairo-bugs] [Bug 89208] Link errors when building cairo 1.12.18 on Windows.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89208

peavo at outlook.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 OS|All                         |Windows (All)

--- Comment #1 from peavo at outlook.com ---
diff --git a/src/cairo-wgl-context.c b/src/cairo-wgl-context.c
index 4872374..5a1bad6 100644
--- a/src/cairo-wgl-context.c
+++ b/src/cairo-wgl-context.c
@@ -259,3 +259,22 @@ cairo_gl_surface_create_for_dc (cairo_device_t    
*device,
     return &surface->base.base;
 }
+
+static PFNGLACTIVETEXTUREARBPROC _glActiveTextureARB = NULL;
+static PFNGLBLENDFUNCSEPARATEPROC _glBlendFuncSeparate = NULL;
+
+void InitWGLStuff()
+{
+    _glActiveTextureARB =
(PFNGLACTIVETEXTUREARBPROC)wglGetProcAddress((LPCSTR)"glActiveTextureARB");
+    _glBlendFuncSeparate =
(PFNGLBLENDFUNCSEPARATEPROC)wglGetProcAddress((LPCSTR)"glBlendFuncSeparate");
+}
+
+GLAPI void APIENTRY glActiveTexture(GLenum texture)
+{
+    (*_glActiveTextureARB)(texture);
+}
+
+GLAPI void APIENTRY glBlendFuncSeparate(GLenum sfactorRGB, GLenum dfactorRGB,
GLenum sfactorAlpha, GLenum dfactorAlpha)
+{
+    (*_glBlendFuncSeparate)(sfactorRGB, dfactorRGB, sfactorAlpha,
dfactorAlpha);
+}
diff --git a/src/win32/cairo-win32-system.c b/src/win32/cairo-win32-system.c
index 8785530..a2c01d0 100644
--- a/src/win32/cairo-win32-system.c
+++ b/src/win32/cairo-win32-system.c
@@ -61,6 +61,8 @@

 #include <windows.h>

+void InitWGLStuff();
+
 /* declare to avoid "no previous prototype for 'DllMain'" warning */
 BOOL WINAPI
 DllMain (HINSTANCE hinstDLL,
@@ -75,6 +77,7 @@ DllMain (HINSTANCE hinstDLL,
     switch (fdwReason) {
         case DLL_PROCESS_ATTACH:
             CAIRO_MUTEX_INITIALIZE ();
+            InitWGLStuff();
             break;

         case DLL_PROCESS_DETACH:

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