quakeforge/config.d/fbdev.m4

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dnl Checks for Linux FBDev support
AC_ARG_WITH(fbdev,
[ --with-fbdev use Linux framebuffer device],
HAVE_FBDEV=$withval, HAVE_FBDEV=auto)
if test "x$HAVE_FBDEV" != xno; then
dnl We should still be able to compile it even if
dnl there is no fbdev support in the running kernel
AC_CHECK_HEADERS(linux/fb.h, HAVE_FBDEV=yes, HAVE_FBDEV=no)
fi
AC_SUBST(HAVE_FBDEV)
if test "x$HAVE_FBDEV" = xyes; then
AC_MSG_CHECKING(for FB_AUX_VGA_PLANES_VGA4)
AC_TRY_COMPILE(
[#include "linux/fb.h"],
[int foo = FB_AUX_VGA_PLANES_VGA4;],
AC_DEFINE(HAVE_FB_AUX_VGA_PLANES_VGA4, 1, [Define this if you have FB_AUX_VGA_PLANES_VGA4])
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
AC_MSG_CHECKING(for FB_AUX_VGA_PLANES_CFB4)
AC_TRY_COMPILE(
[#include "linux/fb.h"],
[int foo = FB_AUX_VGA_PLANES_CFB4;],
AC_DEFINE(HAVE_FB_AUX_VGA_PLANES_CFB4, 1, [Define this if you have FB_AUX_VGA_PLANES_CFB4])
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
AC_MSG_CHECKING(for FB_AUX_VGA_PLANES_CFB8)
AC_TRY_COMPILE(
[#include "linux/fb.h"],
[int foo = FB_AUX_VGA_PLANES_CFB8;],
AC_DEFINE(HAVE_FB_AUX_VGA_PLANES_CFB8, 1, [Define this if you have FB_AUX_VGA_PLANES_CFB4])
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no)
)
fi