Re: zsh compiling on Apple OSX v. 10.4.x

[Peter Stephenson <pws@xxxxxxx>]

Felix Rosencrantz wrote:
> It seems that on 10.4, it's better to use select() than poll() for the
> terminal IO. Otherwise you get the broken behavior Bill mentions
> Though configure for zsh hasn't been modified to know this.  I'm not
> sure how to modify the autoconfg code to change this code for 10.4.
> But it would be nice to fix this, so that zsh builds properly on OSX
> 10.4 w/o hand-edits to config.h.

I don't know what definitions to use, but this shouldn't break
anything.  I don't think autoconf allows you to undefine values; the
easiest way to fix it there would be to avoid testing for poll() and
poll.h at all on the appropriate systems.

Index: Src/system.h
===================================================================
RCS file: /cvsroot/zsh/zsh/Src/system.h,v
retrieving revision 1.30
diff -u -r1.30 system.h
--- Src/system.h	24 Feb 2005 16:53:12 -0000	1.30
+++ Src/system.h	23 May 2005 13:41:18 -0000
@@ -300,6 +300,15 @@
 # include <sys/socket.h>
 #endif
 
+#if defined(__APPLE__) && defined(HAVE_SELECT)
+/*
+ * Prefer select() to poll() on MacOS X since poll() is known
+ * to be problematic in 10.4
+ */
+#undef HAVE_POLL
+#undef HAVE_POLL_H
+#endif
+
 #ifdef HAVE_SYS_FILIO_H
 # include <sys/filio.h>
 #endif

-- 
Peter Stephenson <pws@xxxxxxx>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070


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