X-Spam-Check-By: sourceware.org Date: Fri, 28 Apr 2006 10:28:29 +0200 From: Corinna Vinschen To: newlib@sourceware.org Cc: cygwin@cygwin.com Subject: Re: Cygwin build error Message-ID: <20060428082829.GK28583@calimero.vinschen.de> Reply-To: newlib@sourceware.org Mail-Followup-To: newlib@sourceware.org, cygwin@cygwin.com References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2i Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com 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 -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/