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# GL_DEVEL()
#
# Check for the presence of OpenGL development headers and libraries.
# Sets the GL_CFLAGS and GL_LIBS variables as appropriate.
AC_DEFUN([GL_DEVEL],
[
AC_REQUIRE([X11_DEVEL])
# Store these
OLDLIBS=$LIBS
OLDCPPFLAGS=$CPPFLAGS
AC_CHECK_LIB([GL], [glXGetConfig],
,
[
AC_MSG_ERROR([A valid libGL could not be found.])
])
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
LIBS="$LIBS $X_PRE_LIBS $X_LIBS $X_EXTRA_LIBS"
AC_MSG_CHECKING([if we can compile with GL])
AC_TRY_LINK(
[
#include <GL/gl.h>
],
[
GLfloat f = 0.0;
glVertex3f(f, f, f);
],
[
AC_MSG_RESULT([yes])
],
[
AC_MSG_RESULT([no])
AC_MSG_ERROR([Could not compile against GL])
])
GL_CFLAGS=""
GL_LIBS="-lGL"
AC_SUBST(GL_CFLAGS)
AC_SUBST(GL_LIBS)
CPPFLAGS=$OLDCPPFLAGS
LIBS=$OLDLIBS
])
|
