Gate OpenGL error-checking on a compilation setting rather than Debug…

…/Release

CMakeLists.txt

@@ -5,11 +5,12 @@ if(NOT CMAKE_BUILD_TYPE AND NOT DEFINED ENV{CMAKE_BUILD_TYPE})
   set(CMAKE_BUILD_TYPE "Debug" CACHE STRING "default build type")
 endif()
 
-option(FORCE_COLORED_OUTPUT "Always produce ANSI-colored compiler warnings/errors (GCC/Clang only; esp. useful with Ninja)." OFF)
-option(FORCE_PORTABLE_INSTALL "Install all files into local directory defined by CMAKE_INSTALL_PREFIX" ON)
+option(BUILD_TESTING "Enable testing. Requires GTest." OFF)
 option(ENABLE_LOGGER "Enable logging to the terminal" OFF)
 option(ENABLE_MEM_RTL "Enable Real-time library memory management functions (disable to verbose memory allocations)" ON)
-option(BUILD_TESTING "Enable testing. Requires GTest." OFF)
+option(FATAL_GL_ERRORS "Check OpenGL calls and raise exceptions on errors." OFF)
+option(FORCE_COLORED_OUTPUT "Always produce ANSI-colored compiler warnings/errors (GCC/Clang only; esp. useful with Ninja)." OFF)
+option(FORCE_PORTABLE_INSTALL "Install all files into local directory defined by CMAKE_INSTALL_PREFIX" ON)
 set(USE_VCPKG "DEFAULT" CACHE STRING "Use vcpkg for dependency management. DEFAULT defers to existence of $VCPKG_ROOT environment variable.")
 set_property(CACHE USE_VCPKG PROPERTY STRINGS "DEFAULT" "ON" "OFF")
 
@@ -197,6 +198,11 @@ if(ENABLE_LOGGER)
   add_compile_definitions(LOGGER)
 endif()
 
+if(FATAL_GL_ERRORS)
+  message("Raising exceptions on OpenGL errors")
+  add_compile_definitions(FATAL_GL_ERRORS)
+endif()
+
 include_directories(
   "cfile"   # TODO: Remove after untying all modules
   "ddebug"  # -*-

renderer/dyna_gl.h

@@ -39,7 +39,7 @@
 #endif
 
 inline void CheckError() {
-#if defined(_DEBUG)
+#if defined(FATAL_GL_ERRORS)
   static auto _dglGetError = reinterpret_cast<GLenum (*)()>(SDL_GL_GetProcAddress("glGetError"));
   auto err = _dglGetError();
   switch (err) {