3 files changed, 16 insertions, 4 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index ff9dd488c74..ad47e22580b 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1259,7 +1259,7 @@ initialize_framebuffer_size(GLcontext *ctx, GLframebuffer *fb)
  * \param drawBuffer  the drawing framebuffer
  * \param readBuffer  the reading framebuffer
  */
-void
+GLboolean
 _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
                     GLframebuffer *readBuffer )
 {
@@ -1272,14 +1272,14 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
       if (!check_compatible(newCtx, drawBuffer)) {
          _mesa_warning(newCtx,
               "MakeCurrent: incompatible visuals for context and drawbuffer");
-         return;
+         return GL_FALSE;
       }
    }
    if (newCtx && readBuffer && newCtx->WinSysReadBuffer != readBuffer) {
       if (!check_compatible(newCtx, readBuffer)) {
          _mesa_warning(newCtx,
               "MakeCurrent: incompatible visuals for context and readbuffer");
-         return;
+         return GL_FALSE;
       }
    }
 
@@ -1384,6 +1384,8 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
 	 newCtx->FirstTimeCurrent = GL_FALSE;
       }
    }
+   
+   return GL_TRUE;
 }
 
 
diff --git a/src/mesa/main/context.h b/src/mesa/main/context.h
index 5b57d88029c..6b3e1b2b973 100644
--- a/src/mesa/main/context.h
+++ b/src/mesa/main/context.h
@@ -130,7 +130,7 @@ extern void
 _mesa_copy_context(const GLcontext *src, GLcontext *dst, GLuint mask);
 
 
-extern void
+extern GLboolean
 _mesa_make_current( GLcontext *ctx, GLframebuffer *drawBuffer,
                     GLframebuffer *readBuffer );
 
diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c
index 615f7c9a6da..3fb67083a2d 100644
--- a/src/mesa/main/imports.c
+++ b/src/mesa/main/imports.c
@@ -1008,6 +1008,16 @@ output_if_debug(const char *prefixString, const char *outputString,
       fprintf(stderr, "%s: %s", prefixString, outputString);
       if (newline)
          fprintf(stderr, "\n");
+
+#if defined(_WIN32) && !defined(_WIN32_WCE)
+      /* stderr from windows applications without console is not usually 
+       * visible, so communicate with the debugger instead */ 
+      {
+         char buf[4096];
+         _mesa_snprintf(buf, sizeof(buf), "%s: %s%s", prefixString, outputString, newline ? "\n" : "");
+         OutputDebugStringA(buf);
+      }
+#endif
    }
 }