add missing GL dependency for GLFW #3530

src/library_glfw.js

@@ -32,7 +32,7 @@
  ******************************************************************************/
 
 var LibraryGLFW = {
-  $GLFW__deps: ['emscripten_get_now'],
+  $GLFW__deps: ['emscripten_get_now', '$GL'],
   $GLFW: {
 
     Window: function(id, width, height, title, monitor, share) {

tests/glfw_minimal.c

@@ -0,0 +1,27 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<emscripten/emscripten.h>
+#define GLFW_INCLUDE_ES2 
+#include<GL/glfw.h>
+
+int main() {
+    printf("main function started\n");
+    if (glfwInit() != GL_TRUE) {
+        printf("glfwInit() failed\n");
+        glfwTerminate();
+    } else {
+        printf("glfwInit() success\n");
+        if (glfwOpenWindow(640, 480, 8, 8, 8, 8, 16, 0, GLFW_WINDOW) != GL_TRUE){
+            printf("glfwOpenWindow() failed\n");
+            glfwTerminate();
+        } else {
+          printf("glfwOpenWindow() success\n");
+        }
+    }
+#ifdef REPORT_RESULT  
+    int result = 1;
+    REPORT_RESULT();
+#endif
+    return EXIT_SUCCESS;
+}
+

tests/test_browser.py

@@ -1110,6 +1110,10 @@ keydown(100);keyup(100); // trigger the end
     self.btest('glfw.c', '1', args=['-s', 'LEGACY_GL_EMULATION=1'])
     self.btest('glfw.c', '1', args=['-s', 'LEGACY_GL_EMULATION=1', '-s', 'USE_GLFW=2'])
 
+  def test_glfw_minimal(self):
+    self.btest('glfw_minimal.c', '1', args=[])
+    self.btest('glfw_minimal.c', '1', args=['-s', 'USE_GLFW=2'])
+
   def test_egl(self):
     open(os.path.join(self.get_dir(), 'test_egl.c'), 'w').write(self.with_report_result(open(path_from_root('tests', 'test_egl.c')).read()))