[project @ 2001-04-03 16:50:11 by rrt]

[ghc-hetmet.git] / configure.in

diff --git a/configure.in b/configure.in
index 2a9bc24..e00ce22 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -847,6 +847,14 @@ else
 fi
 AC_SUBST(LibsReadline)
 
+if test "$HaveLibReadline"; then
+  AC_CHECK_LIB(readline, rl_erase_empty_line,
+    [AC_DEFINE(HAVE_READLINE_4, 1)],
+    [AC_DEFINE(HAVE_READLINE_4, 0)])
+else
+  AC_DEFINE(HAVE_READLINE_4, 0)
+fi
+
 dnl ** check for math library
 FPTOOLS_CHECK_LIBM()
 AC_SUBST(LIBM)