adding gnu-readline support

[xboard.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 712c250..64844e1 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -61,7 +61,6 @@ AH_TEMPLATE([USE_XAW3D],[template])
 AH_TEMPLATE([X_LOCALE],[template])
 
 
-
 if test -z "$CFLAGS" ; then
 dnl| Prevent the next macro from setting CFLAGS to -g
   CFLAGS=" "
@@ -164,6 +163,28 @@ if test "$xaw_headers" = "no" ; then
 fi
 
 
+dnl | test for readline
+AC_ARG_WITH([readline],
+           [AS_HELP_STRING([--with-readline],
+                           [support fancy command line editing @<:@default=yes@:>@])
+           ],
+            [],
+           [with_readline=yes])
+          
+LIBREADLINE=
+AS_IF([test "x$with_readline" != xno],
+      [AC_CHECK_LIB([readline], [main],
+                    [AC_SUBST([LIBREADLINE], ["-lreadline "])
+                     AC_DEFINE([HAVE_LIBREADLINE], [1],
+                               [Define if you have libreadline])
+                    ],
+                    [if test "x$with_readline" != xyes; then
+                     AC_MSG_FAILURE(
+                     [--with-readline was given, but test for readline failed])
+                            fi
+                   ], "")])
+
+
 AC_CANONICAL_HOST
 
 dnl| The following info is mostly gathered from GNU Emacs 19.24.  Basically,
@@ -441,6 +462,7 @@ echo "        infodir:         $infodir   (info files will go here)"
 echo "        sysconfdir:      $sysconfdir   (xboard.conf will go here)"
 echo ""
 echo "        Xaw3d:           $with_xaw3d"
+echo "        readline:        $with_readline"
 echo ""
 echo "        xpm:             $enable_xpm"
 echo "        ptys:            $enable_ptys"