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Check for an OpenGL implementation. If GL is found, the required compiler and linker flags are included in the output variables "GL_CFLAGS", "GL_LIBS", "GL_LDFLAGS", respectively. If no usable GL implementation is found, "no_gl" is set to "yes".

You could disable OpenGL using –with-gl=no

You could choose a specific OpenGL libs using –with-gl=lib_name

Under darwin, cygwin and mingw target you could prefer the OpenGL implementation that link with X setting –with-gl=x or without X support with –with-gl=nox. Notes that this script try to guess the right implementation.

If the header "GL/gl.h" is found, "HAVE_GL_GL_H" is defined. If the header "OpenGL/gl.h" is found, HAVE_OPENGL_GL_H is defined. These preprocessor definitions may not be mutually exclusive.

You should use something like this in your headers:

  #if defined(HAVE_WINDOWS_H) && defined(_WIN32)
  # include <windows.h>
  #ifdef HAVE_GL_GL_H
  # include <GL/gl.h>
  #elif defined(HAVE_OPENGL_GL_H)
  # include <OpenGL/gl.h>
  # error no gl.h

Source Code

Download the latest version of ax_check_gl.m4 or browse the macro’s revision history.


Copyright © 2009 Braden McDaniel
Copyright © 2012 Bastien Roucaries

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

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