fixed an issue when using an empty window title (#5526)

cmake/LibraryConfigurations.cmake

@@ -149,6 +149,24 @@ elseif ("${PLATFORM}" MATCHES "SDL")
 	endif()	
 elseif ("${PLATFORM}" MATCHES "RGFW")
     set(PLATFORM_CPP "PLATFORM_DESKTOP_RGFW")
+
+    if (APPLE)
+        find_library(COCOA Cocoa)
+        find_library(OPENGL OpenGL)
+
+        set(LIBS_PRIVATE ${COCOA} ${OPENGL})
+    elseif (WIN32)
+        find_package(OpenGL REQUIRED)
+
+        set(LIBS_PRIVATE ${OPENGL_LIBRARIES} gdi32)
+    elseif("${CMAKE_SYSTEM_NAME}" MATCHES "QNX")
+        message(FATAL_ERROR "RGFW platform does not support QNX. Use PLATFORM=Desktop or PLATFORM=SDL instead.")
+    elseif (UNIX)
+        find_package(X11 REQUIRED)
+        find_package(OpenGL REQUIRED)
+
+        set(LIBS_PRIVATE ${X11_LIBRARIES} ${OPENGL_LIBRARIES})
+    endif ()
 endif ()
 
 if (NOT ${OPENGL_VERSION} MATCHES "OFF")

src/platforms/rcore_desktop_rgfw.c

@@ -1290,7 +1290,7 @@ int InitPlatform(void)
 
     if (!FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED)) FLAG_SET(flags, RGFW_windowFocusOnShow | RGFW_windowFocus);
 
-    platform.window = RGFW_createWindow(CORE.Window.title, RGFW_RECT(0, 0, CORE.Window.screen.width, CORE.Window.screen.height), flags);
+    platform.window = RGFW_createWindow((CORE.Window.title != 0)? CORE.Window.title : " ", RGFW_RECT(0, 0, CORE.Window.screen.width, CORE.Window.screen.height), flags);
     platform.mon.mode.area.w = 0;
 
     if (platform.window != NULL)