Fix submodule

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "GCR_CMake"]
+	path = GCR_CMake
+	url = https://github.com/daleclack/GCR_CMake

Flos_Gtk4/CMakeLists.txt

@@ -0,0 +1,61 @@
+set(CMAKE_CXX_STANDARD 17)
+cmake_minimum_required(VERSION 3.0.0)
+project(gtk120 VERSION 1.0.0)
+
+list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/../GCR_CMake/macros)
+include(GlibCompileResourcesSupport)
+
+include(CTest)
+enable_testing()
+
+set(CPACK_PROJECT_NAME ${PROJECT_NAME})
+set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
+
+include(CPack)
+include_directories(.)
+include_directories(..)
+
+find_package (PkgConfig REQUIRED)
+pkg_check_modules (GTK4 REQUIRED gtk4)
+include_directories (${GTK4_INCLUDE_DIRS})
+link_directories (${GTK4_LIBRARY_DIRS})
+
+#Compile Resource
+
+set(RESOURCE_LIST
+    flos.png)
+
+compile_gresources(RESOURCE_FILE
+                   XML_OUT
+                   TYPE EMBED_C
+                   RESOURCES ${RESOURCE_LIST}
+                   PREFIX "/org/gtk/daleclack"
+                   SOURCE_DIR ${PROJECT_SOURCE_DIR}/res)
+                   
+# Add a custom target to the makefile. Now make builds our resource file.
+# It depends on the output RESOURCE_FILE.
+add_custom_target(resource ALL DEPENDS ${RESOURCE_FILE})
+
+#SOURCE FILES LIST
+set(SOURCES src/core/main.cpp src/core/MainWin.cpp)
+
+#For win32 platform,use rc resource and .ico icon
+if(WIN32)
+	SET(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
+	set(app_WINRC ../icon.rc)
+	set_property(SOURCE ../icon.rc APPEND PROPERTY
+        OBJECT_DEPENDS ${PROJECT_SOURCE_DIR}/../icon.ico
+        )
+	add_executable(${PROJECT_NAME} WIN32 ${app_WINRC} ${SOURCES} ${RESOURCE_FILE})
+else()
+	add_executable(${PROJECT_NAME} ${SOURCES} ${RESOURCE_FILE})
+
+endif(WIN32)
+
+#Add command to generate .gitignore
+add_custom_command(TARGET ${PROJECT_NAME} 
+                   COMMAND echo \"*\" > ${CMAKE_BINARY_DIR}/.gitignore
+                   COMMAND echo \"**/*\" > ${CMAKE_BINARY_DIR}/.hgignore)
+
+SET (CMAKE_EXTRA_CXX_FLAGS ${GTK4_CFLAGS_OTHER})
+target_link_libraries (${PROJECT_NAME} ${GTK4_LIBRARIES} -lpthread)

Flos_Gtk4/src/core/main.cpp

@@ -0,0 +1,5 @@
+#include <gtk/gtk.h>
+
+int main(int argc, char ** argv){
+    
+}