check that GL renderer defines make sense

src/tb/renderers/tb_renderer_gl.h

@@ -10,6 +10,14 @@
 
 #if defined(TB_RENDERER_GL)
 
+#if defined(TB_RENDERER_GLES_1) && defined(TB_RENDERER_GLES_2)
+#error "Both GLES_1 and GLES_2 defined"
+#elif defined(TB_RENDERER_GLES_1) && defined(TB_RENDERER_GL3)
+#error "Both GLES_1 and GL3 defined"
+#elif defined(TB_RENDERER_GLES_2) && defined(TB_RENDERER_GL3)
+#error "Both GLES_2 and GL3 defined"
+#endif
+
 #ifdef TB_RENDERER_GLES_1
 #include <EGL/egl.h>
 #include <GLES/gl.h>

src/tb/tb_clipboard_sdl2.cpp

@@ -0,0 +1,43 @@
+// ================================================================================
+// ==      This file is a part of Turbo Badger. (C) 2011-2014, Emil Segerås      ==
+// ==                     See tb_core.h for more information.                    ==
+// ================================================================================
+
+#include "tb_system.h"
+
+#ifdef TB_CLIPBOARD_SDL2
+
+#ifdef __EMSCRIPTEN__
+#include "SDL/SDL.h"
+#else
+#include "SDL2/SDL.h"
+#endif
+
+namespace tb {
+
+// == TBClipboard =====================================
+
+void TBClipboard::Empty()
+{
+	SetText("");
+}
+
+bool TBClipboard::HasText()
+{
+	return SDL_HasClipboardText();
+}
+
+bool TBClipboard::SetText(const char *text)
+{
+	return (0 == SDL_SetClipboardText(text));
+}
+
+bool TBClipboard::GetText(TBStr &text)
+{
+	if (const char *str = GetClipboardText())
+		return text.Set(str);
+}
+
+} // namespace tb
+
+#endif // TB_CLIPBOARD_SDL2

src/tb/tb_config.h

@@ -68,7 +68,7 @@
 
 /** Enable renderer using OpenGL ES. This renderer depends on TB_RENDERER_GL.
 	It is using GL ES version 2. */
-#define TB_RENDERER_GLES_2
+//#define TB_RENDERER_GLES_2
 
 /** The width of the font glyph cache. Must be a power of two. */
 #define TB_GLYPH_CACHE_WIDTH 512