1.1 --- a/Makefile	Thu Feb 18 23:15:43 2016 +0200
     1.2 +++ b/Makefile	Thu Feb 18 23:21:49 2016 +0200
     1.3 @@ -4,7 +4,13 @@
     1.4  
     1.5  CC = gcc
     1.6  CFLAGS = -pedantic -Wall -g
     1.7 -LDFLAGS = -lglut -lGL -lGLU
     1.8 +LDFLAGS = $(libgl)
     1.9 +
    1.10 +ifeq ($(shell uname -s), Darwin)
    1.11 +	libgl = -framework OpenGL -framework GLUT -lGLEW
    1.12 +else
    1.13 +	libgl = -lGL -lGLU -lglut -lGLEW
    1.14 +endif
    1.15  
    1.16  $(bin):	$(obj)
    1.17  	$(CC) -o $@ $(obj) $(LDFLAGS)

     2.1 --- a/refmod_test.c	Thu Feb 18 23:15:43 2016 +0200
     2.2 +++ b/refmod_test.c	Thu Feb 18 23:21:49 2016 +0200
     2.3 @@ -1,7 +1,12 @@
     2.4  #include <stdio.h>
     2.5  #include <stdlib.h>
     2.6  #include <string.h>
     2.7 +#include <GL/glew.h>
     2.8 +#ifdef __APPLE__
     2.9 +#include <GLUT/glut.h>
    2.10 +#else
    2.11  #include <GL/glut.h>
    2.12 +#endif
    2.13  #include "sdr.h"
    2.14  
    2.15  #ifdef FREEGLUT

     3.1 --- a/sdr.c	Thu Feb 18 23:15:43 2016 +0200
     3.2 +++ b/sdr.c	Thu Feb 18 23:21:49 2016 +0200
     3.3 @@ -3,86 +3,19 @@
     3.4  #include <string.h>
     3.5  #include <errno.h>
     3.6  #include <assert.h>
     3.7 +#include <GL/glew.h>
     3.8  
     3.9  #if defined(unix) || defined(__unix__)
    3.10  #include <unistd.h>
    3.11  #include <sys/stat.h>
    3.12 -#include <GL/glx.h>
    3.13  #endif	/* unix */
    3.14  
    3.15 -#if defined(WIN32) || defined(__WIN32__)
    3.16 -#include <windows.h>
    3.17 -
    3.18 -#define glXGetProcAddress	wglGetProcAddress
    3.19 -#endif	/* windows */
    3.20 -
    3.21 -#define GL_GLEXT_LEGACY
    3.22 -#include <GL/gl.h>
    3.23 -
    3.24  #include "sdr.h"
    3.25  
    3.26 -#ifndef GL_VERSION_2_0
    3.27 -
    3.28 -#define GL_FRAGMENT_SHADER                0x8B30
    3.29 -#define GL_VERTEX_SHADER                  0x8B31
    3.30 -#define GL_COMPILE_STATUS                 0x8B81
    3.31 -#define GL_LINK_STATUS                    0x8B82
    3.32 -#define GL_INFO_LOG_LENGTH                0x8B84
    3.33 -#define GL_CURRENT_PROGRAM                0x8B8D
    3.34 -
    3.35 -typedef char GLchar;
    3.36 -
    3.37 -GLuint (*glCreateProgram)(void);
    3.38 -GLuint (*glCreateShader)(GLenum);
    3.39 -void (*glDeleteProgram)(GLuint);
    3.40 -void (*glDeleteShader)(GLuint);
    3.41 -void (*glCompileShader)(GLuint);
    3.42 -void (*glAttachShader)(GLuint, GLuint);
    3.43 -void (*glGetShaderiv)(GLuint, GLenum, GLint *);
    3.44 -void (*glGetShaderInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
    3.45 -void (*glGetProgramiv)(GLuint, GLenum, GLint *);
    3.46 -void (*glGetProgramInfoLog)(GLuint, GLsizei, GLsizei *, GLchar *);
    3.47 -void (*glLinkProgram)(GLuint);
    3.48 -void (*glShaderSource)(GLuint, GLsizei, const GLchar* *, const GLint *);
    3.49 -void (*glUseProgram)(GLuint);
    3.50 -GLint (*glGetUniformLocation)(GLuint, const GLchar *);
    3.51 -void (*glUniform1f)(GLint, GLfloat);
    3.52 -void (*glUniform2f)(GLint, GLfloat, GLfloat);
    3.53 -void (*glUniform3f)(GLint, GLfloat, GLfloat, GLfloat);
    3.54 -void (*glUniform4f)(GLint, GLfloat, GLfloat, GLfloat, GLfloat);
    3.55 -void (*glUniform1i)(GLint, GLint);
    3.56 -void (*glUniformMatrix4fv)(GLint, GLsizei, GLboolean, const GLfloat *);
    3.57 -GLint (*glGetAttribLocation)(GLuint, const GLchar *);
    3.58 -void (*glVertexAttrib3f)(GLint, GLfloat, GLfloat, GLfloat);
    3.59 -
    3.60  void init_sdr(void)
    3.61  {
    3.62 -	glCreateProgram = glXGetProcAddress("glCreateProgramObjectARB");
    3.63 -	glCreateShader = glXGetProcAddress("glCreateShaderObjectARB");
    3.64 -	glDeleteProgram = glXGetProcAddress("glDeleteObjectARB");
    3.65 -	glDeleteShader = glXGetProcAddress("glDeleteObjectARB");
    3.66 -	glCompileShader = glXGetProcAddress("glCompileShaderARB");
    3.67 -	glAttachShader = glXGetProcAddress("glAttachObjectARB");
    3.68 -	glGetShaderiv = glXGetProcAddress("glGetObjectParameterivARB");
    3.69 -	glGetShaderInfoLog = glXGetProcAddress("glGetInfoLogARB");
    3.70 -	glGetProgramiv = glXGetProcAddress("glGetObjectParameterivARB");
    3.71 -	glGetProgramInfoLog = glXGetProcAddress("glGetInfoLogARB");
    3.72 -	glLinkProgram = glXGetProcAddress("glLinkProgramARB");
    3.73 -	glShaderSource = glXGetProcAddress("glShaderSourceARB");
    3.74 -	glUseProgram = glXGetProcAddress("glUseProgramObjectARB");
    3.75 -	glGetUniformLocation = glXGetProcAddress("glGetUniformLocationARB");
    3.76 -	glUniform1f = glXGetProcAddress("glUniform1fARB");
    3.77 -	glUniform2f = glXGetProcAddress("glUniform2fARB");
    3.78 -	glUniform3f = glXGetProcAddress("glUniform3fARB");
    3.79 -	glUniform4f = glXGetProcAddress("glUniform4fARB");
    3.80 -	glUniform1i = glXGetProcAddress("glUniform1iARB");
    3.81 -	glUniformMatrix4fv = glXGetProcAddress("glUniformMatrix4fvARB");
    3.82 -	glGetAttribLocation = glXGetProcAddress("glGetAttribLocationARB");
    3.83 -	glVertexAttrib3f = glXGetProcAddress("glVertexAttrib3fARB");
    3.84 +	glewInit();
    3.85  }
    3.86 -#else
    3.87 -void init_sdr(void) {}
    3.88 -#endif
    3.89  
    3.90  unsigned int create_vertex_shader(const char *src)
    3.91  {