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