AX_CHECK_GLUT
, 

2004-11-15

Braden McDaniel <braden@endoframe.com>

AllPermissive
Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. Users of this software should generally follow the principles of the MIT License includings its disclaimer.

cryp.to ac-archive's Installed Packages (released)

Check for GLUT. If GLUT is found, the required compiler and linker flags are included in the output variables "GLUT_CFLAGS" and "GLUT_LIBS", respectively. This macro adds the configure option "--with-apple-opengl-framework", which users can use to indicate that Apple's OpenGL framework should be used on Mac OS X. If Apple's OpenGL framework is used, the symbol "HAVE_APPLE_OPENGL_FRAMEWORK" is defined. If GLUT is not found, "no_glut" is set to "yes".

AC_DEFUN([AX_CHECK_GLUT],
[AC_REQUIRE([AX_CHECK_GLU])dnl
AC_REQUIRE([AC_PATH_XTRA])dnl

if test "X$with_apple_opengl_framework" = "Xyes"; then
  GLUT_CFLAGS="${GLU_CFLAGS}"
  GLUT_LIBS="-framework GLUT -lobjc ${GL_LIBS}"
else
  GLUT_CFLAGS=${GLU_CFLAGS}
  GLUT_LIBS=${GLU_LIBS}

  #
  # If X is present, assume GLUT depends on it.
  #
  if test "X${no_x}" != "Xyes"; then
    GLUT_LIBS="${X_PRE_LIBS} -lXmu -lXi ${X_EXTRA_LIBS} ${GLUT_LIBS}"
  fi

  AC_LANG_PUSH(C)

  ax_save_CPPFLAGS="${CPPFLAGS}"
  CPPFLAGS="${GLUT_CFLAGS} ${CPPFLAGS}"

  AC_CACHE_CHECK([for GLUT library], [ax_cv_check_glut_libglut],
  [ax_cv_check_glut_libglut="no"
  ax_save_LIBS="${LIBS}"
  LIBS=""
  ax_check_libs="-lglut32 -lglut"
  for ax_lib in ${ax_check_libs}; do
    if test X$ax_compiler_ms = Xyes; then
      ax_try_lib=`echo $ax_lib | sed -e 's/^-l//' -e 's/$/.lib/'`
    else
      ax_try_lib="${ax_lib}"
    fi
    LIBS="${ax_try_lib} ${GLUT_LIBS} ${ax_save_LIBS}"
    AC_LINK_IFELSE(
    [AC_LANG_PROGRAM([[
# if HAVE_WINDOWS_H && defined(_WIN32)
#   include <windows.h>
# endif
# include <GL/glut.h>]],
                     [[glutMainLoop()]])],
    [ax_cv_check_glut_libglut="${ax_try_lib}"; break])

  done
  LIBS=${ax_save_LIBS}
  ])
  CPPFLAGS="${ax_save_CPPFLAGS}"
  AC_LANG_POP(C)

  if test "X${ax_cv_check_glut_libglut}" = "Xno"; then
    no_glut="yes"
    GLUT_CFLAGS=""
    GLUT_LIBS=""
  else
    GLUT_LIBS="${ax_cv_check_glut_libglut} ${GLUT_LIBS}"
  fi
fi

AC_SUBST([GLUT_CFLAGS])
AC_SUBST([GLUT_LIBS])
])dnl