Date: Sat, 26 May 2012 20:40:32 +0200 From: Oliver Pinter <oliver.pntr@gmail.com> To: Mel Flynn <rflynn@acsalaska.net> Cc: ports@freebsd.org, x11@freebsd.org Subject: Re: libX11 and clang: compile error Message-ID: <CAPjTQNEvV_%2BVT2iE_1EHDdR_nciMc1yWLFGnDKyqd6nu-wek2Q@mail.gmail.com> In-Reply-To: <4FC112A1.7080600@acsalaska.net> References: <CAPjTQNHCHCPNm=6%2BinkDmbnj4%2BW1kdcXkwFxS8LURj3kqWPDmg@mail.gmail.com> <4FC1082A.9090801@acsalaska.net> <CAPjTQNG-8mosRuun-u%2BWHVVAu_VydDhdLekrQ8hOEQ%2BPML-3Zg@mail.gmail.com> <4FC112A1.7080600@acsalaska.net>
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On 5/26/12, Mel Flynn <rflynn@acsalaska.net> wrote:
> On 26-5-2012 19:17, Oliver Pinter wrote:
>> I think src.conf is relevant, while it changes the system behavior, as
>> changed the default cc from gcc-4.2 to clang.
>
> Thinking it doesn't make it so. Run:
> grep _WITHOUT_SRCCONF /usr/share/mk/*.mk
>
> Then investigate.
> Setting CC in /etc/src.conf has *no effect on CC passed to the ports*.
> Really. It does not.
> The file that can do that is /etc/make.conf.
> Another way is setting CC in your environment variables, through
> /etc/login.conf, /etc/yourshellrc ~/.profile ~/.[cz]?shrc and what not.
>
> In order to debug your issue, you should provide the output of what make
> thinks CC and CPP are and backtrack where they are set.
> Start with:
> make -C /usr/ports/x11/libX11 -V CC -V CPP
> --
> Mel
>
After setting WITH_CLANG_IS_CC in src.conf the base system cc,cpp and
c++ has changed:
op@opn ~> cc --version
FreeBSD clang version 3.1 (branches/release_31 155985) 20120503
Target: x86_64-unknown-freebsd9.0
Thread model: posix
op@opn ~> cpp --version
FreeBSD clang version 3.1 (branches/release_31 155985) 20120503
Target: x86_64-unknown-freebsd9.0
Thread model: posix
op@opn ~> c++ --version
FreeBSD clang version 3.1 (branches/release_31 155985) 20120503
Target: x86_64-unknown-freebsd9.0
Thread model: posix
This is the new behavior after this patch:
commit 61fe77c5c9eb33f033bd89d869b05ce6dcd5fd5f
Author: dim <dim@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Date: Sat Mar 17 22:29:05 2012 +0000
MFC 232322:
Add a WITH_CLANG_IS_CC option for src.conf(5), disabled by default, that
installs clang as /usr/bin/cc, /usr/bin/c++ and /usr/bin/cpp.
Note this does *not* disable building and installing gcc, which will
still be available as /usr/bin/gcc, /usr/bin/g++ and /usr/bin/gcpp. If
you want to disable gcc completely, you must use WITHOUT_GCC.
MFC 232323:
Regenerate src.conf(5) after r232322.
MFC 232323:
Regenerate src.conf(5) after r232322.
MFC 232477:
In r232322, I forgot one case where a check for MK_CLANG_IS_CC was
needed, in sys/conf/kern.pre.mk. Add it now.
MFC 232522:
Fix a thinko in r232322, where gcc (and its tools) are not built during
the cross-tools stage, if CC=clang and WITH_CLANG_IS_CC is not set.
This causes no 'cc' to be installed in the temporary cross-tools tree,
making lint fall over later in the build, because it ignores ${CC} and
attempts to run 'cc' anyway.
To fix this, only skip building gcc during cross-tools, if WITHOUT_GCC
is set, or if WITH_CLANG_IS_CC is set.
Pointy hat to: dim
git-svn-id: svn://svn.freebsd.org/base/stable/9@233099 ccf9f872-aa2e-dd11-9f
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