X-Git-Url: https://git.draconx.ca/gitweb/cdecl99.git/blobdiff_plain/b2644aedc9476afe2c7f4074951cd34be1053711..551b61d2a837bae31c439b2d1abdc3189ad1252e:/configure.ac

diff --git a/configure.ac b/configure.ac
index 3be3127..1aae33e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,6 +10,7 @@ AC_CONFIG_HEADER([config.h])
 
 AM_INIT_AUTOMAKE([-Wall -Wno-portability foreign subdir-objects])
 AM_SILENT_RULES([yes])
+DX_AUTOMAKE_COMPAT
 
 AC_PROG_CC_C99
 AM_PROG_CC_C_O
@@ -18,6 +19,25 @@ gl_EARLY
 LT_INIT
 gl_INIT
 
+AC_CACHE_CHECK([if readline supports add_history], [dx_cv_rl_add_history], [dnl
+dx_cv_rl_add_history=no
+dx_save_libs=$LIBS
+LIBS="$LIBS $LIBREADLINE"
+AC_LINK_IFELSE([AC_LANG_PROGRAM([dnl
+#include <stdio.h>
+#if HAVE_READLINE_HISTORY_H
+#  include <readline/history.h>
+#endif
+], [dnl
+(*add_history)("");
+])], [dx_cv_rl_add_history=yes], [dx_cv_rl_add_history=no])
+LIBS=$dx_save_libs
+])
+
+AS_IF([test x"$dx_cv_rl_add_history" = x"yes"],
+	[AC_DEFINE([HAVE_RL_ADD_HISTORY], [1],
+		[Define to 1 if readline supports add_history.])])
+
 m4_include([lib/gnulib.mk])
 DX_GLSYM_PREFIX([cdecl__])
 
@@ -37,9 +57,6 @@ AC_ARG_VAR([BISONFLAGS], [Additional options to pass to Bison.])
 AC_CHECK_PROGS([BISON], [bison], [bison])
 BISON_I18N
 
-GLOBAL_SYMBOL_PIPE=$lt_cv_sys_global_symbol_pipe
-AC_SUBST([GLOBAL_SYMBOL_PIPE])
-
 AH_TOP([#include <conf_pre.h>])
 AH_BOTTOM([#include <conf_post.h>])