Re: Termcap saga again

[Peter Stephenson <pws@csr.com>]

> On May 8,  3:56pm, Peter Stephenson wrote:
> } Subject: Re: Termcap saga again
> }
> } Is there some other way of doing the test that will simply see if it
> } compiled?  I should know but I can't remember.
> 
> Yeah, change it from AC_TRY_COMPILE to AC_TRY_LINK, though it's pretty
> stupid that AC_TRY_COMPILE fails on harmless warnings.
> 
> So apply my patch (which is necessary to get AC_TRY_LINK to work right)
> and also change the _COMPILE to _LINK (which I should have noticed in the
> first place) and try again.  If it works, either you can commit it, or
> let me know and I will.

Actually, AC_TRY_COMPILE is OK, it was only AC_CHECK_HEADERS that barfed on
the warnings.  This means rewriting bits of the AC_CHECK_HEADERS internals
to get the right definitions.  Here's the combined diff.  Or do the
COMPILEs here still need to be LINKs?

I left term.h with AC_CHECK_HEADERS, because otherwise it fails if curses.h
is needed to make it work, which is tested later.

This gets worse and worse.  I can't believe how long I've wasted on this,
and lots of other people have wasted a good bit longer.

Index: acconfig.h
===================================================================
RCS file: /cvsroot/zsh/zsh/acconfig.h,v
retrieving revision 1.9
diff -u -r1.9 acconfig.h
--- acconfig.h	2001/04/26 15:48:14	1.9
+++ acconfig.h	2001/05/08 16:22:20
@@ -318,5 +318,8 @@
 /* Define if you have the terminfo strnames symbol.  */
 #undef HAVE_STRNAMES
 
+/* Define if we have curses.h */
+#undef HAVE_CURSES_H
+
 /* Define if term.h chokes without curses.h */
 #undef TERM_H_NEEDS_CURSES_H
Index: configure.in
===================================================================
RCS file: /cvsroot/zsh/zsh/configure.in,v
retrieving revision 1.53
diff -u -r1.53 configure.in
--- configure.in	2001/05/02 16:48:32	1.53
+++ configure.in	2001/05/08 16:22:32
@@ -562,15 +562,20 @@
 AC_SEARCH_LIBS(tgetent, [$termcap_curses_order])
 case "$LIBS" in
 *curses*)
-AC_CHECK_HEADERS(curses.h term.h)
+AC_CACHE_CHECK(for curses.h, ac_cv_header_curses_h,
+AC_TRY_COMPILE([#include <curses.h>], [],
+[ac_cv_header_curses_h=yes
+AC_DEFINE(HAVE_CURSES_H)],
+ac_cv_header_curses_h=no))
+AC_CHECK_HEADERS(term.h)
 if test x$ac_cv_header_term_h = xyes; then
 
 AC_MSG_CHECKING(if term.h needs curses.h)
-AC_TRY_COMPILE([#include <term.h>], [char **test = boolcodes;], boolcodes_with_only_term_h=yes,
-boolcodes_with_only_term_h=no)
+AC_TRY_COMPILE([#include <term.h>], [char **test = boolcodes; printf(*test);],
+boolcodes_with_only_term_h=yes, boolcodes_with_only_term_h=no)
 AC_TRY_COMPILE([#include <curses.h>
-#include <term.h>], [char **test = boolcodes;], boolcodes_with_curses_h_and_term_h=yes,
-boolcodes_with_curses_h_and_term_h=no)
+#include <term.h>], [char **test = boolcodes; printf(*test);],
+boolcodes_with_curses_h_and_term_h=yes, boolcodes_with_curses_h_and_term_h=no)
 if test "x$boolcodes_with_curses_h_and_term_h" = xyes && test "x$boolcodes_with_only_term_h" = xno;
 then
 AC_DEFINE(TERM_H_NEEDS_CURSES_H)

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Unit 300, Science Park, Milton Road,
Cambridge, CB4 0XL, UK                          Tel: +44 (0)1223 392070


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