configure.in: For --enable-languages=LIST, check for empty LIST.

        * configure.in:  For --enable-languages=LIST, check for empty LIST.
        * configure:  Regenerate.

From-SVN: r34123

gcc/ChangeLog

+2000-05-24  Phil Edwards  <pme@sourceware.cygnus.com>
+
+	* configure.in:  For --enable-languages=LIST, check for empty LIST.
+	* configure:  Regenerate.
+
 2000-05-24  Lars Brinkhoff  <lars@nocrew.org>
 
 	* pdp11.h (STACK_BOUNDARY): Define.

gcc/configure

@@ -8958,6 +8958,10 @@ if test x"${enable_languages+set}" != xset; then
 	else
 		enable_languages=all
 	fi
+else
+	if test x"${enable_languages}" = x; then
+		{ echo "configure: error: --enable-languages needs at least one argument" 1>&2; exit 1; }
+	fi
 fi
 subdirs=
 for lang in ${srcdir}/*/config-lang.in ..

gcc/configure.in

@@ -4607,6 +4607,10 @@ if test x"${enable_languages+set}" != xset; then
 	else
 		enable_languages=all
 	fi
+else
+	if test x"${enable_languages}" = x; then
+		AC_MSG_ERROR([--enable-languages needs at least one argument])
+	fi
 fi
 subdirs=
 for lang in ${srcdir}/*/config-lang.in ..