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Re: Cygwin build error
On Apr 28 13:37, Jeff Johnston wrote:
> Corinna Vinschen wrote:
> >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,
>
> Please elaborate. Shaun's problem occurs on Debian and does not
> occur on Fedora Core. He is also dealing with multilib. While it may
> be the same problem, I would like to isolate this one.
>
> Both you and Chris confirmed that the new configuration built fine.
> How do your successful builds differ from that of Ernie above?
Hmm, I'm generally building with CFLAGS-g to get a debug build, maybe
that's the reason. However, I'm just heading into vacation and I'm not
able to build Cygwin for a while.
Corinna
--
Corinna Vinschen
Cygwin Project Co-Leader
Red Hat