better project structure

framework/CMakeLists.txt

@@ -0,0 +1,16 @@
+project(framework)
+
+add_library(framework
+        src/hello.cpp)
+
+target_link_libraries(framework
+        glfw)
+
+target_include_directories(framework
+        PUBLIC
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+        $<INSTALL_INTERFACE:include>
+        PRIVATE
+        src)
+
+export(TARGETS framework glfw FILE FrameworkConfig.cmake)

framework/include/hello.h

@@ -0,0 +1,10 @@
+#ifndef GL_TEMPLATE_HELLO_H
+#define GL_TEMPLATE_HELLO_H
+
+#include <string>
+
+void hello();
+
+int showWindow(const std::string &title);
+
+#endif //GL_TEMPLATE_HELLO_H

framework/src/hello.cpp

@@ -0,0 +1,24 @@
+#include "hello.h"
+
+#include <GLFW/glfw3.h>
+
+#include <stdio.h>
+#include <string>
+
+void hello() {
+    printf("Hello, World!\n");
+}
+
+int showWindow(const std::string &title) {
+    if (!glfwInit()) return EXIT_FAILURE;
+
+    GLFWwindow *window = glfwCreateWindow(1280, 720, title.c_str(), nullptr, nullptr);
+
+    while (!glfwWindowShouldClose(window)) {
+        glfwPollEvents();
+    }
+
+    glfwDestroyWindow(window);
+    glfwTerminate();
+    return EXIT_SUCCESS;
+}