Date: Fri, 27 May 2016 19:35:16 -0700 From: Mark Millard <markmi@dsl-only.net> To: Bryan Drewery <bdrewery@FreeBSD.org> Cc: FreeBSD Current <freebsd-current@freebsd.org>, FreeBSD Toolchain <freebsd-toolchain@freebsd.org>, FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>, Gerald Pfeifer <gerald@FreeBSD.org>, Warner Losh <imp@bsdimp.com> Subject: Re: svn commit: r297435 - head: still problems for stage 3 when gcc 4.2.1 is avoided (powerpc64 self-hosted build) Message-ID: <C23B8A92-8855-48CE-B442-3C7BEFCEF820@dsl-only.net> In-Reply-To: <72F5F9FD-5854-455D-8844-C4E1887DCE9F@dsl-only.net> References: <5A0ACA76-6F1D-4975-9E59-2A64BB8EFC77@dsl-only.net> <56FD9757.6040709@FreeBSD.org> <9E3033D5-F416-4B78-97C2-0A0AABF5A49E@dsl-only.net> <56FDA5F9.1090601@FreeBSD.org> <481DA341-0DFC-4AF1-AD4D-56C5388FA8E3@dsl-only.net> <56FDBAA8.5060407@FreeBSD.org> <7DEF97EC-D970-4F64-AF72-8939609A1D48@dsl-only.net> <DD969902-BCA8-480B-B32F-07DCC6C3E32B@dsl-only.net> <db60bcec-a6c4-02ac-da6c-1ac70821b806@FreeBSD.org> <4953F764-FC4E-491F-A6B7-4CAF65EAAEB7@dsl-only.net> <70a54660-775d-c12c-b991-507d26ce1342@FreeBSD.org> <72F5F9FD-5854-455D-8844-C4E1887DCE9F@dsl-only.net>
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On 2016-May-27, at 7:04 PM, Mark Millard <markmi at dsl-only.net> wrote: > FYI. . . >=20 > I expect that building gcc49 with: >=20 > + --with-local-prefix=3D/usr \ >=20 > will help with system build activities via gcc49/g++49 by avoiding = /usr/local/include interfering. >=20 > 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: >=20 >> # 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 >=20 > It might be that even gcc compilers built by the adjusted gcc49 would = not find, say, gmp.h or mpfr.h . >=20 > 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 ). >=20 > (It will still be some time before I get to switch to this = with-local-prefix experiment.) >=20 > =3D=3D=3D > Mark Millard > markmi at dsl-only.net Given the above I may try using + --with-local-prefix=3D/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. =3D=3D=3D 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=3D/usr/include \ >>=20 >> looks wrong to me. The default is not /usr/local/include but just = /usr/local . Quoting https://gcc.gnu.org/install/configure.html : >>=20 >> --with-local-prefix=3Ddirname >> 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. >>=20 >> So your change would generate /usr/include/include for the overall = include path from what I can tell. >>=20 >> Do you want: >>=20 >> + --with-local-prefix=3D/usr \ >>=20 >> instead? >=20 > You're right, but it makes no real difference since it removes > /usr/local/include: >=20 >> 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/inc= lude" >> 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" >=20 > ^ yes wrong >=20 >> 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_6= 4-portbld-freebsd11.0/4.9.4/include >> = /root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/x86_6= 4-portbld-freebsd11.0/4.9.4/include-fixed >> = /root/svn/ports/lang/gcc49/work/stage/usr/local/bin/../lib/gcc49/gcc/../..= /../include >> /usr/include >=20 > ^ Still added >=20 >> End of search list. >=20 >=20 >=20 > --=20 > Regards, > Bryan Drewery >=20 >=20
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