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Re: PATCH: configure.in: tgetent test does not work on Cygwin
- X-seq: zsh-workers 12381
- From: Peter Stephenson <pws@xxxxxxxxxxxxxxxxxxxxxxxxx>
- To: zsh-workers@xxxxxxxxxxxxxx (Zsh hackers list)
- Subject: Re: PATCH: configure.in: tgetent test does not work on Cygwin
- Date: Wed, 26 Jul 2000 10:07:47 +0100
- In-reply-to: "Your message of Wed, 26 Jul 2000 12:23:20 +0400." <000301bff6da$c198e730$21c9ca95@xxxxxxxxxxxxxx>
- Mailing-list: contact zsh-workers-help@xxxxxxxxxxxxxx; run by ezmlm
> > > This particular problem was due to tgetent() problem.
>
> Test succeeded because after program crashes with STATUS_ACCESS_VIOLATION (as
> our test program correctly did) we still get exit code 0. Here is the patch
> that tries a workaround - it creates temporary file and tests for it after
> program run. Any system without creat() ? I did not want to blindly check for
> Cygwin because ncurses does not have this problem.
Here's a context diff. I've moved the test for the file up, because
configure removes conftest* before the final test for the cache variable.
It seems to work on solaris, where the answer is `yes'. The old version
was working on cygwin for Windows NT 4 sp 5, however, where the answer was
`no'. How does Windows 2000 manage to arrange for a status 0?
Index: configure.in
===================================================================
RCS file: /cvsroot/zsh/zsh/configure.in,v
retrieving revision 1.13
diff -u -r1.13 configure.in
--- configure.in 2000/07/20 16:17:57 1.13
+++ configure.in 2000/07/26 09:03:23
@@ -579,6 +579,8 @@
dnl Check if tgetent accepts NULL (and will allocate its own termcap buffer)
dnl Some termcaps reportedly accept a zero buffer, but then dump core
dnl in tgetstr().
+dnl Under Cygwin test program crashes but exit code is still 0. So,
+dnl we test for a file that porgram should create
AC_CACHE_CHECK(if tgetent accepts NULL,
zsh_cv_func_tgetent_accepts_null,
[AC_TRY_RUN([
@@ -589,11 +591,16 @@
char tbuf[1024], *u;
u = tbuf;
tgetstr("cl", &u);
+ creat("conftest.tgetent", 0640);
}
exit(!i || i == -1);
}
],
- zsh_cv_func_tgetent_accepts_null=yes,
+ if test -f conftest.tgetent; then
+ zsh_cv_func_tgetent_accepts_null=yes
+ else
+ zsh_cv_func_tgetent_accepts_null=no
+ fi,
zsh_cv_func_tgetent_accepts_null=no,
zsh_cv_func_tgetent_accepts_null=no)])
if test $zsh_cv_func_tgetent_accepts_null = yes; then
--
Peter Stephenson <pws@xxxxxxxxxxxxxxxxxxxxxxxxx>
Cambridge Silicon Radio, Unit 300, Science Park, Milton Road,
Cambridge, CB4 0XL, UK Tel: +44 (0)1223 392070
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