From: "Jun T." <takimoto-j@kba.biglobe.ne.jp>
To: zsh-workers@sunsite.dk
Subject: Re: Rebuilding from CVS on Snow Leopard
Date: Wed, 30 Sep 2009 02:23:26 +0900 [thread overview]
Message-ID: <ADC9F79E-C7F4-4CB8-9E22-869ABDE01878@kba.biglobe.ne.jp> (raw)
In-Reply-To: <090927225016.ZM17646@torch.brasslantern.com>
On 2009/09/28, at 14:50, Bart Schaefer wrote:
> configure: WARNING: libc.h: accepted by the compiler, rejected by
> the preprocessor!
This is due to the lines 464-467 of configure.ac:
dnl Default preprocessing on Mac OS X produces warnings
case "$host_os" in
darwin*) CPP="$CPP -traditional-cpp" ;;
esac
I don't know when and why this is added. It seems -traditional-cpp is
not required already on Leopard (darwin9.x.x), but maybe it would be
better to modify only for Snow Leopard (darwin10.x.x).
On Snow Leopard, _FORTIFY_SOURCE is defined to 2 by default, and
stdio.h and string.h include files under /usr/include/secure/.
This adds some buffer overflow checks, as in the case of strncpy().
But some macros in /usr/include/secure/_stdio.h can't be processed
by gcc -E -traditional-cpp, and causes the above warning from configure.
Index: configure.ac
===================================================================
RCS file: /cvsroot/zsh/zsh/configure.ac,v
retrieving revision 1.127
diff -u -r1.127 configure.ac
--- configure.ac 7 Sep 2009 08:53:48 -0000 1.127
+++ configure.ac 29 Sep 2009 17:18:17 -0000
@@ -462,8 +462,9 @@
AC_C_CONST dnl Does compiler support `const'.
dnl Default preprocessing on Mac OS X produces warnings
+dnl Mac OS X 10.6 (darwin10.x.x) does not need this.
case "$host_os" in
- darwin*) CPP="$CPP -traditional-cpp" ;;
+ darwin[[0-9]].*) CPP="$CPP -traditional-cpp" ;;
esac
fp_PROG_CC_STDC
next prev parent reply other threads:[~2009-09-29 17:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-28 5:50 Bart Schaefer
2009-09-29 12:05 ` Jun T.
2009-09-29 14:32 ` Peter Stephenson
2009-09-29 14:44 ` Bart Schaefer
2009-09-29 16:55 ` Jun T.
2009-09-29 17:23 ` Jun T. [this message]
2009-09-29 17:41 ` Mikael Magnusson
2009-09-30 16:11 ` Jun T.
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