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-rw-r--r--src/configure.ac30
1 files changed, 29 insertions, 1 deletions
diff --git a/src/configure.ac b/src/configure.ac
index 8991543ba..00995d24a 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -4,7 +4,7 @@ AC_INIT([GF],[2.2],[aarne@cs.chalmers.se],[GF])
AC_PREREQ(2.53)
-AC_REVISION($Revision: 1.13 $)
+AC_REVISION($Revision: 1.14 $)
AC_CONFIG_FILES([config.mk jgf])
@@ -41,6 +41,34 @@ GHCI=$(dirname $GHC)/ghci
AC_SUBST(GHC)
AC_SUBST(GHCI)
+dnl ***********************************************
+dnl readline
+dnl ***********************************************
+
+AC_ARG_WITH(readline,
+ AC_HELP_STRING([--with-readline=<readline alternative>],
+ [Select which readline implementation to use.
+ Available alternatives are: 'readline' (GNU readline),
+ 'no' (don't use readline)
+ (default = readline)]),
+ [if test "$withval" = "yes"; then
+ READLINE="readline"
+ else
+ READLINE="$withval"
+ fi],
+ [READLINE="readline"])
+
+case $READLINE in
+ readline)
+ ;;
+ no)
+ ;;
+ *)
+ AC_MSG_ERROR([Bad value for --with-readline: $READLINE])
+ ;;
+esac
+
+AC_SUBST(READLINE)
dnl ***********************************************
dnl java stuff