--- Makerules
+++ Makerules
@@ -211,13 +211,13 @@
   CFLAGS += -DCLUSTER
 endif
 
 ifeq ($(OS),Darwin)
   HAVE_GLUT := yes
-  SYS_GLUT_CFLAGS := -Wno-deprecated-declarations
+  SYS_GLUT_CFLAGS := -Wno-deprecated-declarations -Wno-error=incompatible-pointer-types
   SYS_GLUT_LIBS := -framework GLUT -framework OpenGL
   CC = cc
-  AR = ar
+  AR = gar
   LD = ld
   RANLIB = ranlib
 
   ifneq ($(ARCHFLAGS),)
--- platform/gl/gl-main.c
+++ platform/gl/gl-main.c
@@ -41,7 +41,7 @@
 #ifndef _WIN32
 #include <sys/stat.h> /* for mkdir */
 #include <unistd.h> /* for getcwd */
-#include <spawn.h> /* for posix_spawn */
+#include <sys/spawn.h> /* for posix_spawn */
 extern char **environ; /* see environ (7) */
 #else
 #include <direct.h> /* for getcwd */
@@ -96,9 +96,6 @@
 	argv[0] = (char*) browser;
 	argv[1] = (char*) uri;
 	argv[2] = NULL;
-	err = posix_spawnp(&pid, browser, NULL, NULL, argv, environ);
-	if (err)
-		fz_warn(ctx, "cannot spawn browser '%s': %s", browser, strerror(err));
 
 #endif
 }