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-rw-r--r--configure.ac19
1 files changed, 14 insertions, 5 deletions
diff --git a/configure.ac b/configure.ac
index adf8de9..7fcc48a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -290,12 +290,21 @@ AC_ARG_WITH(editline, [ --with-editline Simmule Turner's line editing],
AC_DEFINE(EDITLINE) LIBS="$LIBS -ledit",
AC_MSG_WARN(editline library not found)))
-AC_ARG_WITH(readline, [ --with-readline Bloated GNU line editing],
- AC_CHECK_LIB(readline, readline, [
+dnl Getting readline right is hard. There are (at least) two incompatible versions,
+dnl and we need to know which one we are using. There are also two different
+dnl names for the include files.
+AC_ARG_WITH(readline, [ --with-readline Bloated GNU line editing], [
+ AC_CHECK_LIB(readline, rl_deprep_terminal, [
+ AC_DEFINE(READLINE)
+ AC_DEFINE(READLINE_OLD)
+ ], [
+ AC_CHECK_LIB(readline, readline, [
AC_DEFINE(READLINE)
- LIBS="$LIBS -lreadline -ltermcap"
- AC_CHECK_HEADERS(readline.h readline/readline.h)
- ], AC_MSG_WARN(readline library not found), -ltermcap))
+ ], AC_MSG_WARN(readline library not found), -ltermcap)
+ ], -ltermcap)
+ LIBS="$LIBS -lreadline -ltermcap"
+ AC_CHECK_HEADERS(readline.h readline/readline.h)
+])
AM_CONDITIONAL(AMC_READLINE, test "${with_readline+set}" = set)
AC_OUTPUT(Makefile)