svn commit: r297435 - head: still problems for stage 3 when gcc 4.2.1 is avoided (powerpc64 self-hosted build)

Sat May 28 09:24:37 UTC 2016

--with-local-prefix=/usr was insufficient to avoid /usr/local/include in the search list in powerpc64-gcc:

> ignoring duplicate directory "/usr/obj/xtoolchain_noclang/powerpc.powerpc64/usr/src/tmp/usr/include"
> ignoring nonexistent directory "/usr/local/lib/gcc/powerpc64-portbld-freebsd11.0/5.3.0/../../../../powerpc64-portbld-freebsd11.0/include"
> ignoring duplicate directory "/usr/obj/xtoolchain_noclang/powerpc.powerpc64/usr/src/tmp/usr/include"
> #include "..." search starts here:
> #include <...> search starts here:
>  /usr/src/gnu/lib/libssp/libssp_nonshared/..
>  /usr/src/gnu/lib/libssp/libssp_nonshared/../../../../contrib/gcclibs/libssp
>  /usr/src/gnu/lib/libssp/libssp_nonshared/../../../../contrib/gcclibs/include
>  /usr/obj/xtoolchain_noclang/powerpc.powerpc64/usr/src/tmp/usr/include
>  /usr/local/lib/gcc/powerpc64-portbld-freebsd11.0/5.3.0/include
>  /usr/local/include
>  /usr/local/lib/gcc/powerpc64-portbld-freebsd11.0/5.3.0/include-fixed
> End of search list.

Which came from (which shows the --with-local-prefix=/usr use):

> Configured with: /usr/obj/portswork/usr/ports/devel/powerpc64-gcc/work/gcc-5.3.0/configure --target=powerpc64-portbld-freebsd11.0 --disable-nls --enable-languages=c,c++ --without-headers --with-gmp=/usr/local --with-local-prefix=/usr --with-pkgversion='FreeBSD Ports Collection for powerpc64' --with-system-zlib --with-as=/usr/local/bin/powerpc64-freebsd-as --with-ld=/usr/local/bin/powerpc64-freebsd-ld --prefix=/usr/local --localstatedir=/var --mandir=/usr/local/man --infodir=/usr/local/info/ --build=powerpc64-portbld-freebsd11.0

In Makefile terms:

> # svnlite diff /usr/ports/devel/powerpc64-gcc/Makefile 
> Index: /usr/ports/devel/powerpc64-gcc/Makefile
> ===================================================================
> --- /usr/ports/devel/powerpc64-gcc/Makefile	(revision 415874)
> +++ /usr/ports/devel/powerpc64-gcc/Makefile	(working copy)
> @@ -43,6 +43,7 @@
>  CONFIGURE_ARGS+=--target=${GCC_TARGET} --disable-nls --enable-languages=c,c++ \
>  		--without-headers \
>  		--with-gmp=${LOCALBASE} \
> +		--with-local-prefix=/usr \
>  		--with-pkgversion="FreeBSD Ports Collection for ${PKGNAMEPREFIX:C/-//g}" \
>  		--with-system-zlib \
>  		--with-as=${LOCALBASE}/bin/${BU_PREFIX}-as \

Note: "Specifying --prefix has no effect on which directory GCC searches for local header files".

Some interesting wording is: "The same value can be used for both --with-local-prefix and --prefix provided it is not /usr" and "This can be used to avoid the default search of /usr/local/include". Also: "The purpose of --prefix is to specify where to install GCC" and "The local header files in /usr/local/include—if you put any in that directory—are not part of GCC".

My overall interpretation of that is that in my context:

--with-local-prefix=/usr/local/lib/gcc/powerpc64-portbld-freebsd11.0/5.3.0

a.k.a.:

--with-local-prefix=${LOCALBASE}/lib/gcc/${GCC_TARGET}/${PORTVERSION}

would make for a redundant overall search path without changing the ordering.

I have not figured out why /usr/local/include continued to show up and /usr/include did not. I wonder if they have special logic for if /usr is assigned and so force back there specified default.

I'll try rebuilding devel/powerpc64-gcc again based on:

--with-local-prefix=${LOCALBASE}/lib/gcc/${GCC_TARGET}/${PORTVERSION}

===
Mark Millard
markmi at dsl-only.net

On 2016-May-27, at 7:35 PM, Mark Millard <markmi at dsl-only.net> wrote:

> On 2016-May-27, at 7:04 PM, Mark Millard <markmi at dsl-only.net> wrote:
> 
>> FYI. . .
>> 
>> I expect that building gcc49 with:
>> 
>> +		--with-local-prefix=/usr \
>> 
>> will help with system build activities via gcc49/g++49 by avoiding /usr/local/include interfering.
>> 
>> But I also expect that various port builds based on that same gcc49/g++49 will have problems from not explicitly forcing /usr/local/include to be looked at when appropriate/required --unless something else is in place to do that separately. I expect some implicit /usr/local/include references to the likes of some of the below list:
>> 
>>> # diff -qr /usr/include/ /usr/local/include/ | grep /local/ | more
>>> Only in /usr/local/include/: apr-1
>>> Files /usr/include/atf-c/defs.h and /usr/local/include/atf-c/defs.h differ
>>> Only in /usr/local/include/: autosprintf.h
>>> Only in /usr/local/include/: bfd.h
>>> Only in /usr/local/include/: bfdlink.h
>>> Only in /usr/local/include/: boost
>>> Only in /usr/local/include/: curl
>>> Only in /usr/local/include/: db5
>>> Only in /usr/local/include/: dis-asm.h
>>> Files /usr/include/dwarf.h and /usr/local/include/dwarf.h differ
>>> Only in /usr/local/include/: editline
>>> Only in /usr/local/include/: expat.h
>>> Only in /usr/local/include/: expat_config.h
>>> Only in /usr/local/include/: expat_external.h
>>> Only in /usr/local/include/: ffi.h
>>> Only in /usr/local/include/: ffitarget.h
>>> Only in /usr/local/include/: gdbm.h
>>> Only in /usr/local/include/: gettext-po.h
>>> Only in /usr/local/include/: gmp.h
>>> Only in /usr/local/include/: gmpxx.h
>>> Only in /usr/local/include/: gnumake.h
>>> Files /usr/include/histedit.h and /usr/local/include/histedit.h differ
>>> Only in /usr/local/include/: idn-free.h
>>> Only in /usr/local/include/: idn-int.h
>>> Only in /usr/local/include/: idna.h
>>> Only in /usr/local/include/: layout
>>> Files /usr/include/libdwarf.h and /usr/local/include/libdwarf.h differ
>>> Only in /usr/local/include/: libintl.h
>>> Only in /usr/local/include/: lua52
>>> Only in /usr/local/include/: lutok
>>> Only in /usr/local/include/: mpc.h
>>> Only in /usr/local/include/: mpf2mpfr.h
>>> Only in /usr/local/include/: mpfr.h
>>> Only in /usr/local/include/: pkg.h
>>> Only in /usr/local/include/: plugin-api.h
>>> Only in /usr/local/include/: pr29.h
>>> Only in /usr/local/include/: punycode.h
>>> Only in /usr/local/include/: python2.7
>>> Only in /usr/local/include/: readline
>>> Only in /usr/local/include/: ruby-2.2
>>> Only in /usr/local/include/: serf-1
>>> Only in /usr/local/include/: sqlite3.h
>>> Only in /usr/local/include/: sqlite3ext.h
>>> Only in /usr/local/include/: stringprep.h
>>> Only in /usr/local/include/: subversion-1
>>> Only in /usr/local/include/: sudo_plugin.h
>>> Only in /usr/local/include/: symcat.h
>>> Only in /usr/local/include/: tld.h
>>> Only in /usr/local/include/: unicode
>>> Only in /usr/local/include/: yaml.h
>> 
>> It might be that even gcc compilers built by the adjusted gcc49 would not find, say, gmp.h or mpfr.h .
>> 
>> dwarfdump's build/install installs /usr/local/include/dwarf.h and /usr/local/include/libdwarf.h to match its code. Such examples can need careful control over which file is used (here dwarf.h and libdwarf.h in /usr/include vs. /usr/local/include ).
>> 
>> (It will still be some time before I get to switch to this with-local-prefix experiment.)
>> 
>> ===
>> Mark Millard
>> markmi at dsl-only.net
> 
> Given the above I may try using
> 
> +		--with-local-prefix=/usr \
> 
> only for building devel/powerpc64-gcc initially because I do not use devel/powerpc64-gcc to build ports, just for system-build activities. devel/powerpc64-gcc has the /usr/local/include problem for system build activities too.
> 
> ===
> Mark Millard
> markmi at dsl-only.net
> 
> 
On 2016-May-27, at 5:23 PM, Bryan Drewery <bdrewery at FreeBSD.org> wrote:

> On 5/27/2016 5:15 PM, Mark Millard wrote:
>> +		--with-local-prefix=/usr/include \
>> 
>> looks wrong to me. The default is not /usr/local/include but just /usr/local . Quoting https://gcc.gnu.org/install/configure.html :
>> 
>> --with-local-prefix=dirname
>> Specify the installation directory for local include files. The default is /usr/local. Specify this option if you want the compiler to search directory dirname/include for locally installed header files instead of /usr/local/include.
>> 
>> So your change would generate /usr/include/include for the overall include path from what I can tell.
>> 
>> Do you want:
>> 
>> +		--with-local-prefix=/usr \
>> 
>> instead?
> 
> You're right, but it makes no real difference since it removes
> /usr/local/include:
> 
>> ignoring nonexistent directory "/root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/x86_64-portbld-freebsd11.0/4.9.4/../../../../../x86_64-portbld-freebsd11.0/include"
>> ignoring duplicate directory "/root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/../../../lib/gcc49/gcc/x86_64-portbld-freebsd11.0/4.9.4/include"
>> ignoring nonexistent directory "/usr/include/include"
> 
> ^ yes wrong
> 
>> ignoring duplicate directory "/root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/../../../lib/gcc49/gcc/x86_64-portbld-freebsd11.0/4.9.4/include-fixed"
>> ignoring nonexistent directory "/root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/../../../lib/gcc49/gcc/x86_64-portbld-freebsd11.0/4.9.4/../../../../../x86_64-portbld-freebsd11.0/include"
>> #include "..." search starts here:
>> #include <...> search starts here:
>> /root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/x86_64-portbld-freebsd11.0/4.9.4/include
>> /root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/x86_64-portbld-freebsd11.0/4.9.4/include-fixed
>> /root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/../../../include
>> /usr/include
> 
> ^ Still added
> 
>> End of search list.
> 
> 
> 
> -- 
> Regards,
> Bryan Drewery
> 
> 