Examples: Renaming opengl_example/ to opengl2_example/ for clarity (1/2 because git)

examples/opengl2_example/Makefile

@@ -0,0 +1,60 @@
+#
+# Cross Platform Makefile
+# Compatible with Ubuntu 14.04.1 and Mac OS X
+#
+#
+# if you using Mac OS X:
+# You'll need glfw
+#    http://www.glfw.org
+#
+
+#CXX = g++
+
+EXE = opengl2_example
+OBJS = main.o imgui_impl_glfw.o
+OBJS += ../../imgui.o ../../imgui_demo.o ../../imgui_draw.o
+
+UNAME_S := $(shell uname -s)
+
+
+ifeq ($(UNAME_S), Linux) #LINUX
+	ECHO_MESSAGE = "Linux"
+	LIBS = -lGL `pkg-config --static --libs glfw3`
+
+	CXXFLAGS = -I../../ `pkg-config --cflags glfw3`
+	CXXFLAGS += -Wall -Wformat
+	CFLAGS = $(CXXFLAGS)
+endif
+
+ifeq ($(UNAME_S), Darwin) #APPLE
+	ECHO_MESSAGE = "Mac OS X"
+	LIBS = -framework OpenGL -framework Cocoa -framework IOKit -framework CoreVideo
+	LIBS += -L/usr/local/lib -lglfw3
+
+	CXXFLAGS = -I../../ -I/usr/local/include
+	CXXFLAGS += -Wall -Wformat
+#	CXXFLAGS += -D__APPLE__
+	CFLAGS = $(CXXFLAGS)
+endif
+
+ifeq ($(UNAME_S), MINGW64_NT-6.3)
+   ECHO_MESSAGE = "Windows"
+   LIBS = -lglfw3 -lgdi32 -lopengl32 -limm32
+
+   CXXFLAGS = -I../../ -I../libs/gl3w `pkg-config --cflags glfw3`
+   CXXFLAGS += -Wall -Wformat
+   CFLAGS = $(CXXFLAGS)
+endif
+
+.cpp.o:
+	$(CXX) $(CXXFLAGS) -c -o $@ $<
+
+all: $(EXE)
+	@echo Build complete for $(ECHO_MESSAGE)
+
+$(EXE): $(OBJS)
+	$(CXX) -o $(EXE) $(OBJS) $(CXXFLAGS) $(LIBS)
+
+clean:
+	rm $(EXE) $(OBJS)
+