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Added Premake build system support

premake5.lua

@@ -0,0 +1,43 @@
+project "GLFW"
+  kind "StaticLib"
+  language "C"
+
+  targetdir ("bin/" .. outputdir .. "/%{prj.name}")
+  outputdir ("bin-int/" .. outputdir .. "/%{prj.name}")
+
+  files {
+    "include/GLFW/glfw3.h",
+    "include/GLFW/glfw3native.h",
+    "src/glfw_config.h"
+    "src/context.c",
+    "src/init.c",
+    "src/input.c",
+    "src/monitor.c",
+    "src/vulkan.c",
+    "src/window.c"
+  }
+
+  filter "system:windows"
+    buildoptions { "-std=c11", "-lgdi32" }
+    systemversion "latest"
+    staticruntime "On"
+
+    files {
+      "src/win32_init.c",
+      "src/win32_joystick.c",
+      "src/win32_monitor.c",
+      "src/win32_time.c",
+      "src/win32_thread.c",
+      "src/win32_window.c",
+      "src/wgl_context.c",
+      "src/egl_context.c",
+      "src/osmesa_context.c"
+    }
+
+    defines {
+      "_GLFW_WIN32",
+      "_CRT_SECURE_NO_WARNINGS"
+    }
+
+  filter { "system:windows", "configurations:Release" }
+    buildoptions "/MT"