Check for GLU. If GLU is found, the required preprocessor and linker flags are included in the output variables "GLU_CFLAGS" and "GLU_LIBS", respectively. If no GLU implementation is found, "no_glu" is set to "yes".
If the header "GL/glu.h" is found, "HAVE_GL_GLU_H" is defined. If the header "OpenGL/glu.h" is found, HAVE_OPENGL_GLU_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_GLU_H) # include <GL/glu.h> # elif defined(HAVE_OPENGL_GLU_H) # include <OpenGL/glu.h> # else # error no glu.h # endif
Some implementations (in particular, some versions of Mac OS X) are known to treat the GLU tesselator callback function type as "GLvoid (*)(...)" rather than the standard "GLvoid (*)()". If the former condition is detected, this macro defines "HAVE_VARARGS_GLU_TESSCB".
Download the latest version of ax_check_glu.m4 or browse the macro’s revision history.
Copyright © 2009 Braden McDaniel email@example.com
Copyright © 2013 Bastien Roucaries firstname.lastname@example.org
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 <http://www.gnu.org/licenses/>.
As a special exception, the respective Autoconf Macro’s copyright owner gives unlimited permission to copy, distribute and modify the configure scripts that are the output of Autoconf when processing the Macro. You need not follow the terms of the GNU General Public License when using or distributing such scripts, even though portions of the text of the Macro appear in them. The GNU General Public License (GPL) does govern all other use of the material that constitutes the Autoconf Macro.
This special exception to the GPL applies to versions of the Autoconf Macro released by the Autoconf Archive. When you make and distribute a modified version of the Autoconf Macro, you may extend this special exception to the GPL to apply to your modified version as well.