nVidia gamework opengl samples build error

./../../../extensions/externals/lib/linux64/libglfw3.a(x11_gamma.c.o): In function `_glfwInitGammaRamp':

x11_gamma.c:(.text+0x49): undefined reference to `XRRGetScreenResources'

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linux ubuntu 14.04

1. cd /usr/bin/
2. sudo rm ld
3. sudo ln -s ld.gold ld

安裝jre

1. 從http://www.oracle.com/technetwork/java/javase/downloads/jre7-downloads-1880261.html
下載jre runtime
2. cp -r jre-7u67-linux-x64.tar.gz /usr/local/java/
3. cd /usr/local/java
4. sudo tar xvzf jre-7u67-linux-x64.tar.gz
5. cd ~
6. sudo vim .profile
7. 加上
JAVA_HOME=/usr/local/java/jre1.7.0_67
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH

7. source .profile

8. java -version

g++ and gcc mixing

.cpp


extern "C" {
#include "util/readtex.h"
#include "util/shaderutil.h"
}

extern GLuint CompileShaderText(GLenum shaderType, const char *text);

extern GLuint CompileShaderFile(GLenum shaderType,const char *filename);

extern GLuint LinkShaders(GLuint vertShader, GLuint fragShader);

extern void SetUniformValues(GLuint program, struct uniform_info uniforms[]);

extern GLboolean ValidateShaderProgram(GLuint program);

Makefile:

all: dep

        g++ -g glutfonts.o multitex.o vec.o bezier_fire.o topvertex.o ./util/shaderutil.o -I./util -g -o multitex -lglut -lm -lGLU -lGL -lGLEW `sdl-config --cflags --libs`

dep:

        g++ -g -c multitex.c -o multitex.o -I./util -I/usr/include/SDL

        gcc -c vec.c -o vec.o -I/usr/include/GL

        gcc -c glutfonts.c -o glutfonts.o -I/usr/include/GL

        gcc -c bezier_fire.c -o bezier_fire.o

        gcc -c topvertex.c -o topvertex.o

        gcc -c ./util/shaderutil.c -o shaderutil.o

clean: *.o 

        rm multitex multitex.o vec.o glutfonts.o bezier_fire.o