Add example

examples/ex1.nim

@@ -0,0 +1,34 @@
+import glfw
+import opengl
+
+# Init GLFW
+if init() == 0:
+  raise newException(Exception, "Failed to Initialize GLFW")
+
+# Open window.
+var window = createWindow(800, 600, "GLFW3 WINDOW", nil, nil)
+# Connect the GL context.
+window.makeContextCurrent()
+# This must be called to make any GL function work
+loadExtensions()
+
+# Run while window is open.
+while windowShouldClose(window) == 0:
+
+  # Draw red color screen.
+  glClearColor(1, 0, 0, 1)
+  glClear(GL_COLOR_BUFFER_BIT)
+
+  # Swap buffers (this will display the red color)
+  window.swapBuffers()
+
+  # Check for events.
+  pollEvents()
+  # If you get ESC key quit.
+  if window.getKey(KEY_ESCAPE) == 1:
+    window.setWindowShouldClose(1)
+
+# Destroy the window.
+window.destroyWindow()
+# Exit GLFW.
+terminate()

examples/nim.cfg

@@ -1 +1,2 @@
 --path:"../src/"
+--passL:"-lm -pthread -lpthread"

src/glfw/glfw.nim

@@ -15,13 +15,12 @@ const
 
 setDefines(defs.splitLines())
 
-{.passL: "-lpthread".}
 getHeader(
   "glfw3.h",
   giturl = "https://github.com/glfw/glfw",
   outdir = srcDir,
   altNames = "glfw,glfw3",
-  cmakeFlags = &"-DCMAKE_C_FLAGS=-lpthread"
+  cmakeFlags = &"-DCMAKE_C_FLAGS='-lpthread -pthread -lm'"
 )
 
 static:
@@ -35,6 +34,7 @@ static:
 
 cIncludeDir(srcDir/"include"/"GLFW")
 cPluginPath(symbolPluginPath)
+{.passL: "-lm -lpthread -pthread".}
 
 when isDefined(glfw3Static):
   cImport(srcDir/"include"/"GLFW"/"glfw3.h", recurse = true, flags = "-f=ast2 -E__,_ -F__,_ -H")