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Check for GLX. If GLX is found, the required preprocessor and linker flags are included in the output variables "GLX_CFLAGS" and "GLX_LIBS", respectively. If no GLX implementation is found, "no_glx" is set to "yes".

If the header "GL/glx.h" is found, "HAVE_GL_GLX_H" is defined. If the header "OpenGL/glx.h" is found, HAVE_OPENGL_GLX_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>
  # endif
  # if defined(HAVE_GL_GLX_H)
  #  include <GL/glx.h>
  # elif defined(HAVE_OPENGL_GLX_H)
  #  include <OpenGL/glx.h>
  # else
  #  error no glx.h
  # endif

Source Code

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


Copyright © 2009 Braden McDaniel
Copyright © 2013-2014 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.

You should have received a copy of the GNU General Public License along with this program. If not, see <>.

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