Move common rack/plugins external repos to new include/ dir

Signed-off-by: falkTX <falktx@falktx.com>

include/GL/glew.h

@@ -0,0 +1,124 @@
+/*
+ * DISTRHO Cardinal Plugin
+ * Copyright (C) 2021 Filipe Coelho <falktx@falktx.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 3 of
+ * the License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * For a full copy of the GNU General Public License see the LICENSE file.
+ */
+
+// this file matches the top of `OpenGL.hpp` provided by DPF
+
+#pragma once
+
+#ifdef NDEBUG
+# undef DEBUG
+#endif
+
+/* Check OS */
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+# define DISTRHO_OS_WINDOWS 1
+#else
+# if defined(__APPLE__)
+#  define DISTRHO_OS_MAC 1
+# endif
+#endif
+
+// -----------------------------------------------------------------------
+// Fix OpenGL includes for Windows, based on glfw code (part 1)
+
+#undef DGL_CALLBACK_DEFINED
+#undef DGL_WINGDIAPI_DEFINED
+
+#ifdef DISTRHO_OS_WINDOWS
+
+#ifndef APIENTRY
+# define APIENTRY __stdcall
+#endif // APIENTRY
+
+/* We need WINGDIAPI defined */
+#ifndef WINGDIAPI
+# if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__POCC__)
+#  define WINGDIAPI __declspec(dllimport)
+# elif defined(__LCC__)
+#  define WINGDIAPI __stdcall
+# else
+#  define WINGDIAPI extern
+# endif
+# define DGL_WINGDIAPI_DEFINED
+#endif // WINGDIAPI
+
+/* Some <GL/glu.h> files also need CALLBACK defined */
+#ifndef CALLBACK
+# if defined(_MSC_VER)
+#  if (defined(_M_MRX000) || defined(_M_IX86) || defined(_M_ALPHA) || defined(_M_PPC)) && !defined(MIDL_PASS)
+#   define CALLBACK __stdcall
+#  else
+#   define CALLBACK
+#  endif
+# else
+#  define CALLBACK __stdcall
+# endif
+# define DGL_CALLBACK_DEFINED
+#endif // CALLBACK
+
+/* Most GL/glu.h variants on Windows need wchar_t */
+#include <cstddef>
+
+#endif // DISTRHO_OS_WINDOWS
+
+// -----------------------------------------------------------------------
+// OpenGL includes
+
+#ifdef DISTRHO_OS_MAC
+# ifdef DGL_USE_OPENGL3
+#  include <OpenGL/gl3.h>
+#  include <OpenGL/gl3ext.h>
+# else
+#  include <OpenGL/gl.h>
+# endif
+#else
+# ifdef DISTRHO_OS_WINDOWS
+#  define GL_GLEXT_PROTOTYPES
+# endif
+# ifndef __GLEW_H__
+#  include <GL/gl.h>
+#  include <GL/glext.h>
+# endif
+#endif
+
+// -----------------------------------------------------------------------
+// Missing OpenGL defines
+
+#if defined(GL_BGR_EXT) && !defined(GL_BGR)
+# define GL_BGR GL_BGR_EXT
+#endif
+
+#if defined(GL_BGRA_EXT) && !defined(GL_BGRA)
+# define GL_BGRA GL_BGRA_EXT
+#endif
+
+#ifndef GL_CLAMP_TO_BORDER
+# define GL_CLAMP_TO_BORDER 0x812D
+#endif
+
+// -----------------------------------------------------------------------
+// Fix OpenGL includes for Windows, based on glfw code (part 2)
+
+#ifdef DGL_CALLBACK_DEFINED
+# undef CALLBACK
+# undef DGL_CALLBACK_DEFINED
+#endif
+
+#ifdef DGL_WINGDIAPI_DEFINED
+# undef WINGDIAPI
+# undef DGL_WINGDIAPI_DEFINED
+#endif