+AS_IF([test "x$with_gssapi" != xno],
+ [AC_SEARCH_LIBS(
+ [dlopen],[dl],
+ [],
+ [AC_DEFINE([NO_LIBDL], [1], [Define if we could not find libdl.])
+ AC_CHECK_HEADERS([gssapi/gssapi.h])
+ AC_SEARCH_LIBS(
+ [gss_init_sec_context],[gssapi gssapi_krb5 gss],
+ [],
+ [AC_DEFINE([NO_GSSAPI_LIB], [1], [Define if we could not find a gssapi library])])])])
+
+AC_CHECK_LIB(X11, XOpenDisplay,
+ [GTK_LIBS="-lX11 $GTK_LIBS"
+ AC_DEFINE([HAVE_LIBX11],[],[Define if libX11.a is available])])
+
+AC_CHECK_FUNCS([getaddrinfo posix_openpt ptsname setresuid strsignal updwtmpx])
+AC_CHECK_DECLS([CLOCK_MONOTONIC], [], [], [[#include <time.h>]])
+AC_SEARCH_LIBS([clock_gettime], [rt], [AC_DEFINE([HAVE_CLOCK_GETTIME],[],[Define if clock_gettime() is available])])
+
+if test "x$GCC" = "xyes"; then
+ :
+ AC_SUBST(WARNINGOPTS, ['-Wall -Werror'])
+else
+ :
+ AC_SUBST(WARNINGOPTS, [])
+fi