Pkg-config file generation work.

src/CMakeLists.txt

@@ -12,6 +12,12 @@ if(CYGWIN)
 endif(CYGWIN)
 
 if(UNIX)
+    if(_GLFW_HAS_XRANDR)
+        set(GLFW_PKGLIBS "${GLFW_PKGLIBS} xrandr")
+    endif(_GLFW_HAS_XRANDR)
+    if(_GLFW_HAS_XF86VIDMODE)
+        set(GLFW_PKGLIBS "${GLFW_PKGLIBS} xxf86vm")
+    endif(_GLFW_HAS_XF86VIDMODE)
     configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libglfw.pc.cmake 
                    ${CMAKE_CURRENT_BINARY_DIR}/libglfw.pc @ONLY)
     install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libglfw.pc DESTINATION lib/pkgconfig)

src/libglfw.pc.cmake

@@ -0,0 +1,12 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=${prefix}
+includedir=${prefix}/include
+libdir=${exec_prefix}/lib
+
+Name: GLFW
+Description: A portable library for OpenGL, window and input
+Version: 3.0.0
+URL: http://www.glfw.org/
+Requires.private: gl x11 @GLFW_PKGLIBS@
+Libs: -L${libdir} -lglfw 
+Cflags: -I${includedir}