Reverted use of tchar.h which should be considered deprecated.

GZDoom is Unicode only - as should be the norm for any Windows application - and will not work when compiled as ANSI so there's no good reason to use this wrapper.

src/CMakeLists.txt

@@ -69,20 +69,13 @@ if( WIN32 )
 		setupapi
 		oleaut32
 		dbghelp
-		dxguid
-		dwmapi
-	)
-
-	if( NOT MINGW )
-		list( APPEND PROJECT_LIBRARIES legacy_stdio_definitions )
-	endif()
+		legacy_stdio_definitions )
 
 	if( DEM_CMAKE_COMPILER_IS_GNUCXX_COMPATIBLE )
 		if( DX_dxguid_LIBRARY )
 			list( APPEND PROJECT_LIBRARIES "${DX_dxguid_LIBRARY}" )
 		endif()
 	endif()
-	
 else()
 	if( APPLE )
 		set( NO_GTK ON )

src/common/rendering/gl_load/gl_load.c

@@ -46,7 +46,6 @@ static void* PosixGetProcAddress (const GLubyte* name)
 #undef APIENTRY
 #endif
 #include <windows.h>
-#include <tchar.h>
 
 
 #ifdef _MSC_VER
@@ -77,7 +76,7 @@ static void CheckOpenGL(void)
 {
     if (opengl32dll == 0)
     {
-        opengl32dll = LoadLibrary(_T("OpenGL32.DLL"));
+        opengl32dll = LoadLibraryA("OpenGL32.DLL");
 		if (opengl32dll != 0)
 		{
 			createcontext = (HGLRC(WINAPI*)(HDC)) GetProcAddress(opengl32dll, "wglCreateContext");