add glfw rules

Author: zilongshanren

contrib/src/glfw/SHA512SUMS

@@ -0,0 +1 @@
+33ad6059017c86134e6484c67da95e9e5cb6a921f4bd3081b43632ab28e4f9d951fb55e0392bfa5253ba453995d46b3342e8773a76a101b082b46c456e731d3b  glfw-3.0.4.tar.gz

contrib/src/glfw/rules.mak

@@ -0,0 +1,24 @@
+# GLFW
+GLFW_VERSION := 3.0.4
+GLFW_URL := $(SF)/glfw/$(GLFW_VERSION)/glfw-$(GLFW_VERSION).tar.gz
+
+#FIXME: we don't want to use scripts to determine which libraries should be
+#       included, because there is bug in cross compile
+# PKGS += glfw
+# ifeq ($(call need_pkg,"libglfw"),)
+# PKGS_FOUND += glfw
+# endif
+
+$(TARBALLS)/glfw-$(GLFW_VERSION).tar.gz:
+	$(call download,$(GLFW_URL))
+
+.sum-glfw: glfw-$(GLFW_VERSION).tar.gz
+
+glfw: glfw-$(GLFW_VERSION).tar.gz .sum-glfw
+	$(UNPACK)
+	$(MOVE)
+
+.glfw: glfw
+	cd $< &&  cmake . -DCMAKE_BUILD_TYPE=Release -DGLFW_BUILD_DOCS=0 -DCMAKE_INSTALL_PREFIX=$(PREFIX)
+	cd $< && $(MAKE) VERBOSE=1 install
+	touch $@