CURRENT: lang/gcc fails to build on CURRENT with error: configure: error: no usable dependency style found

[O. Hartmann]

On Mon, 2013-03-11 at 17:29 +0100, Dimitry Andric wrote:
> On 2013-03-11 14:15, Niclas Zeising wrote:
> > On 03/11/13 14:13, Steve Kargl wrote:
> ...
> >> No.  Here's my make.conf.
> >>
> >> KERNCONF=SPEW
> >> CPUTYPE?=opteron
> >> FFLAGS+= -O2 -pipe -march=native -mtune=native -funroll-loops -ftree-vectorize
> >> MALLOC_PRODUCTION="YES"
> >> WITHOUT_LIB32="YES"
> >> WITHOUT_MODULES="YES"
> >> WITHOUT_NLS="YES"
> >> WITH_BSD_GREP="YES"
> >> WITH_PROFILE="YES"
> >> WITH_PKGNG=yes
> >> PRINTERDEVICE=ps
> >> #
> >> # Crap for ports.
> >> #
> >> DISABLE_MAKE_JOBS="YES"
> >> WITH_GHOSTSCRIPT_VER=8
> >> #
> >> # added by use.perl 2013-02-19 12:45:06
> >> PERL_VERSION=5.12.4
> >>
> >
> > This is most likely due to a incompatibility between bsd grep and gnu
> > grep.  Try to switch to gnu grep, and the problem will most likely go away.
> 
> Yes, this is definitely due to a BSD grep bug.  The depcomp tests
> create a file sub/conftest.Po, containing:
> 
> ========================================================================
> sub/conftest.o: sub/conftest.c sub/conftst1.h sub/conftst2.h \
>     sub/conftst3.h sub/conftst4.h sub/conftst5.h sub/conftst6.h
> 
> sub/conftst1.h:
> 
> sub/conftst2.h:
> 
> sub/conftst3.h:
> 
> sub/conftst4.h:
> 
> sub/conftst5.h:
> 
> sub/conftst6.h:
> ========================================================================
> 
> Then it runs "grep sub/conftest.o sub/conftest.Po", which fails with BSD
> grep, and succeeds with GNU grep.
> 
> BSD grep does something very strange here:
> 
> $ echo 'foo.bar' | grep foo.bar
> foo.bar
> $ echo 'foo.barx' | grep foo.bar
> foo.barx
> $ echo 'sub/foo.bar' | grep sub/foo.bar
> sub/foo.bar
> $ echo 'sub/foo.barx' | grep sub/foo.bar
> $ echo $?
> 1
> 
> So why does it not match in the last case?  GNU grep works:
> 
> $ echo 'sub/foo.barx' | gnugrep sub/foo.bar
> sub/foo.barx

After disabling WITH_BSD_GREP and rebuild of the system, it seems that
the machines in question now build lang/gcc.


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