doomgeneric.h: Make interface compatible with C++

diff --git a/doomgeneric/doomgeneric.h b/doomgeneric/doomgeneric.h
index 0fbbd2b76834a5093138cedb2ee0332132e424ee..fd8708f42010ff7226926450e3bed379429eb2a6 100644 (file)
--- a/doomgeneric/doomgeneric.h
+++ b/doomgeneric/doomgeneric.h
@@ -26,6 +26,10 @@ typedef uint32_t pixel_t;
 
 extern pixel_t* DG_ScreenBuffer;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void doomgeneric_Create(int argc, char **argv);
 void doomgeneric_Tick();
 
@@ -38,4 +42,8 @@ uint32_t DG_GetTicksMs();
 int DG_GetKey(int* pressed, unsigned char* key);
 void DG_SetWindowTitle(const char * title);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif //DOOM_GENERIC