+dnl Checking for va_copy availability
+AC_MSG_CHECKING([for va_copy])
+AC_TRY_LINK([#include <stdarg.h>
+va_list ap1,ap2;], [va_copy(ap1,ap2);],
+have_va_copy=yes,
+have_va_copy=no)
+AC_MSG_RESULT($have_va_copy)
+if test x"$have_va_copy" = x"yes"; then
+ AC_DEFINE(HAVE_VA_COPY,1,[Whether va_copy() is available])
+else
+ AC_MSG_CHECKING([for __va_copy])
+ AC_TRY_LINK([#include <stdarg.h>
+ va_list ap1,ap2;], [__va_copy(ap1,ap2);],
+ have___va_copy=yes,
+ have___va_copy=no)
+ AC_MSG_RESULT($have___va_copy)
+ if test x"$have___va_copy" = x"yes"; then
+ AC_DEFINE(HAVE___VA_COPY,1,[Whether __va_copy() is available])
+ fi
+fi
+
+AC_ARG_ENABLE([ps3],
+ [AS_HELP_STRING([--enable-ps3],
+ [build support for the PS3 game console])],
+ [],
+ [enable_ps3=check])
+
+AS_IF([test "x$enable_ps3" != xno], [AC_SUBST([ENABLE_PS3], ["y"])], [])
+
+AC_ARG_WITH([twin],
+ [AS_HELP_STRING([--with-twin],
+ [build GUI versions using the twin window system])],
+ [],
+ [with_twin=check])
+
+PBTWIN=
+LIBTWIN=
+AS_IF([test "x$with_twin" != xno],
+ [PKG_CHECK_MODULES([twin], [libtwin], [],
+ [AC_MSG_RESULT([$twin_PKG_ERRORS])
+ AC_MSG_RESULT([Consider adjusting PKG_CONFIG_PATH environment variable])])
+ AC_CHECK_LIB([twin], [main],
+ [AC_SUBST([LIBTWIN], ["-ltwin"])
+ AC_SUBST([PBTWIN], ["y"])
+ AC_DEFINE([HAVE_LIBTWIN], [1], [Define if you have libtwin])],
+ [if test "x$with_twin" != xcheck; then
+ AC_MSG_FAILURE([--with-twin was given, but test for twin failed])
+ fi],
+ [${twin_LIBS}])
+ AC_CHECK_HEADERS([libtwin/twin_x11.h])
+ AC_CHECK_HEADERS([libtwin/twin_fbdev.h])])
+
+AC_ARG_ENABLE([x11],
+ [AS_HELP_STRING([--enable-x11],
+ [build for x11])],
+ [],
+ [enable_x11=check])
+
+AS_IF([test "x$enable_x11" != xno], [AC_SUBST([ENABLE_X11], ["y"])], [])
+
+
+mkdir -p discover lib/list lib/log lib/pb-protocol lib/system lib/talloc \
+ lib/waiter test ui/common ui/ncurses ui/test ui/twin utils