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diff --git a/ax/ax_check_glu.m4 b/ax/ax_check_glu.m4 new file mode 100644 index 0000000..29d30bd --- a/dev/null +++ b/ax/ax_check_glu.m4 @@ -0,0 +1,71 @@ +dnl @synopsis AX_CHECK_GLU +dnl +dnl Check for GLU. If GLU is found, the required preprocessor and +dnl linker flags are included in the output variables "GLU_CFLAGS" and +dnl "GLU_LIBS", respectively. This macro adds the configure option +dnl "--with-apple-opengl-framework", which users can use to indicate +dnl that Apple's OpenGL framework should be used on Mac OS X. If +dnl Apple's OpenGL framework is used, the symbol +dnl "HAVE_APPLE_OPENGL_FRAMEWORK" is defined. If no GLU implementation +dnl is found, "no_glu" is set to "yes". +dnl +dnl @category InstalledPackages +dnl @author Braden McDaniel <braden@endoframe.com> +dnl @version 2004-11-15 +dnl @license AllPermissive + +AC_DEFUN([AX_CHECK_GLU], +[AC_REQUIRE([AX_CHECK_GL])dnl +AC_REQUIRE([AC_PROG_CXX])dnl +GLU_CFLAGS="${GL_CFLAGS}" +if test "X${with_apple_opengl_framework}" != "Xyes"; then + AC_CACHE_CHECK([for OpenGL Utility library], [ax_cv_check_glu_libglu], + [ax_cv_check_glu_libglu="no" + ax_save_CPPFLAGS="${CPPFLAGS}" + CPPFLAGS="${GL_CFLAGS} ${CPPFLAGS}" + ax_save_LIBS="${LIBS}" + LIBS="" + ax_check_libs="-lglu32 -lGLU" + 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} ${GL_LIBS} ${ax_save_LIBS}" + # + # libGLU typically links with libstdc++ on POSIX platforms. However, + # setting the language to C++ means that test program source is named + # "conftest.cc"; and Microsoft cl doesn't know what to do with such a + # file. + # + AC_LANG_PUSH([C++]) + if test X$ax_compiler_ms = Xyes; then + AC_LANG_PUSH([C]) + fi + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[ +# if HAVE_WINDOWS_H && defined(_WIN32) +# include <windows.h> +# endif +# include <GL/glu.h>]], + [[gluBeginCurve(0)]])], + [ax_cv_check_glu_libglu="${ax_try_lib}"; break]) + if test X$ax_compiler_ms = Xyes; then + AC_LANG_POP([C]) + fi + AC_LANG_POP([C++]) + done + LIBS=${ax_save_LIBS} + CPPFLAGS=${ax_save_CPPFLAGS}]) + if test "X${ax_cv_check_glu_libglu}" = "Xno"; then + no_glu="yes" + GLU_CFLAGS="" + GLU_LIBS="" + else + GLU_LIBS="${ax_cv_check_glu_libglu} ${GL_LIBS}" + fi +fi +AC_SUBST([GLU_CFLAGS]) +AC_SUBST([GLU_LIBS]) +]) |
