configure doesn't detect normal curses

[Christoph Badura]

Hi Carter,

I think the following patch will correct the detection of initscr()
in -lcurses.

I moved the check for initscr() in -lcurses from the "else" part
of "AC_CHECK_LIB(ncurses, initscr..." to the "else" part of
"AC_CHECK_HEADER(ncurses.h...". This seems more logical to me: If the
the ncurses.h header file is there we want to check for initscr() by
linking against -lncurses. If ncurses.h doesn't exist we'd want to check
for initscr() by linking against -lcurses.

I believe you also have to quote the nested calls to AC_CHECK_LIB with
[brackets] or autoconf will generate invalid syntax.


--- configure.in.orig	2007-05-28 21:58:14.000000000 +0200
+++ configure.in	2007-06-16 21:20:23.000000000 +0200
@@ -192,10 +192,10 @@
 
 CURSESLIB=""
 
-AC_CHECK_HEADER(ncurses.h, AC_CHECK_LIB(ncurses, initscr,
-	CURSESLIB="-lncurses", 
-	AC_CHECK_LIB(curses, initscr,
-                CURSESLIB="-lcurses"),))
+AC_CHECK_HEADER(ncurses.h, [AC_CHECK_LIB(ncurses, initscr,
+	CURSESLIB="-lncurses")], 
+	[AC_CHECK_LIB(curses, initscr,
+                CURSESLIB="-lcurses")],)
 
 if test $CURSESLIB = "-lncurses"; then
         cat >> confdefs.h <<\EOF 

ratop now compiles correctly for me.

Cheers,
--chris