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Re: Cygwin build error
- From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
- To: newlib at sourceware dot org
- Cc: cygwin at cygwin dot com
- Date: Fri, 28 Apr 2006 10:28:29 +0200
- Subject: Re: Cygwin build error
- References: <B6C33E7A8278A0408B707C9B491720D4045321@STEELPO.steeleye.com>
- Reply-to: newlib at sourceware dot org
This is a newlib problem. I've redirected this mail to the appropriate
list newlib AT sourceware DOT org.
On Apr 27 15:14, Ernie Coskrey wrote:
> I ran into the following problem building the latest cygwin snapshot:
>
> configure: loading cache .././config.cache
> configure: error: `CFLAGS' has changed since the previous run:
> configure: former value: -O2 -g -O2
> configure: current value: -O2 -g -O2
> configure: error: changes in the environment can compromise the build
> configure: error: run `make distclean' and/or `rm .././config.cache' and start over
> configure: error: /bin/sh '../../../../src/newlib/libc/configure' failed for libc
>
> By piping the output to a file, I saw that the former value of CFLAGS is "-O2 -g -O2 " (two spaces), while the current value is "-O2 -g -O2 " (one space). This causes the comparison in libc/configure to fail.
>
> The way I've resolved this is to replace the following line:
>
> if test "x$ac_old_val" != "x$ac_new_val"; then
>
> with
>
> if test "`echo $ac_old_val`" != "`echo $ac_new_val`"; then
>
> wherever it appears in any "configure" script (there are 75 configure scripts that contain this test, BTW). There may be a more elegant way around this, but I haven't found it. Running "make distclean" or removing config.cache doesn't resolve the problem.
>
> -----
> Ernie Coskrey SteelEye Technology, Inc. 803-461-3875
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat