+disable_x11_support=
+AC_ARG_ENABLE([x11],
+ [AS_HELP_STRING([--disable-x11], [disable x11 support])],
+ [if test "x$enableval" = xno; then
+ disable_x11_support=yes
+ AC_DEFINE([DONT_USE_X11], 1, [Define to not use X11.])
+ fi])
+
+if test -z "$disable_x11_support"; then
+ AX_PTHREAD([],[AC_MSG_ERROR([pthread is required, use --disable-x11])])
+ LIBS="$PTHREAD_LIBS $LIBS"
+ CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
+ CC="$PTHREAD_CC"
+
+ AC_PATH_XTRA
+ if test x"$no_x" = xyes; then
+ AC_MSG_ERROR([X11 is required, use --disable-x11])
+ fi
+ LIBS="$X_PRE_LIBS $X_EXTRA_LIBS $X_LIBS -lX11 $LIBS"
+ CFLAGS="$X_CFLAGS $CFLAGS"
+fi
+