client: Rewrite readline configuration

[empserver] / m4 / my_lib_readline.m4

diff --git a/m4/my_lib_readline.m4 b/m4/my_lib_readline.m4
new file mode 100644 (file)
index 0000000..5d570e5
--- /dev/null
+++ b/m4/my_lib_readline.m4
@@ -0,0 +1,25 @@
+AC_DEFUN([MY_LIB_READLINE], [
+    have_readline=no
+    for readline_lib in readline edit editline; do
+       for termcap_lib in "" termlib termcap curses ncurses; do
+         AC_CHECK_LIB([$readline_lib], [add_history],
+             [have_readline=yes; break 2], [], [$termcap_lib])
+       done
+    done
+
+    if test "$have_readline" = yes; then
+       AC_CHECK_HEADER([readline/readline.h], [], [have_readline=no],
+                       [AC_INCLUDES_DEFAULT])
+       AC_CHECK_HEADER([readline/history.h], [], [have_readline=no],
+                       [AC_INCLUDES_DEFAULT])
+    fi
+
+    if test "$have_readline" = yes; then
+       if test "x$termcap_lib" != x; then
+           LIBS="-l$termcap_lib $LIBS"
+       fi
+       LIBS="-l$readline_lib $LIBS"
+       AC_DEFINE([HAVE_LIBREADLINE], [1],
+                 [Define if you have libreadline])
+    fi
+])