Date: Mon, 16 Jul 2018 23:27:19 -0700 From: Mark Millard <marklmi@yahoo.com> To: John Baldwin <jhb@freebsd.org> Cc: Dimitry Andric <dim@FreeBSD.org>, Bryan Drewery <bdrewery@FreeBSD.org>, svn-src-head@freebsd.org, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: head -r335782 (?) broke ci.freebsd.org's FreeBSD-head-amd64-gcc build (lib32 part of build) Message-ID: <9251BE92-A8CE-45E3-B4BF-706E7219321A@yahoo.com> In-Reply-To: <E7718790-DC0D-4D12-9758-6D240877A6C4@yahoo.com> References: <00D1127A-1F0E-4E0E-B86C-1C5AA5B2E085@yahoo.com> <CF0230A1-1384-4F0F-A96A-5AB555FD17AC@yahoo.com> <7A845F2C-C994-4828-823D-33A97B7B6EB0@yahoo.com> <72081b02-cf23-82ec-32df-7f5793c35f57@FreeBSD.org> <003509F0-F2F4-4A43-82FE-3F6FC23D19D4@yahoo.com> <65b19cc4-eaf0-13ed-43e6-9f04a1f7f196@FreeBSD.org> <FF369ACC-D496-49AF-BB41-406936E433B0@yahoo.com> <edcd2126-3554-f444-6ba0-3da94d887dfe@FreeBSD.org> <49BF6569-96A9-4104-BDE6-8BB94C0D9626@yahoo.com> <F60AE252-CB8E-429E-97BF-812CC4012A90@yahoo.com> <d9385d5b-85a7-3012-3024-c6d9ae8c6705@FreeBSD.org> <AA1986CC-E407-4085-BAF9-0C54D6FFB2F4@yahoo.com> <E7718790-DC0D-4D12-9758-6D240877A6C4@yahoo.com>
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On 2018-Jul-1, at 6:34 AM, Mark Millard <marklmi at yahoo.com> wrote:
> My brain finally engaged for showing exactly what files are included
> for the gcc builds: the .meta files include that information explicitly
> (along with other files that are opened during the operation).
>
> amd64 is as I reported, just one header file from gcc: float.h .
>
> powerpc64 builds Lex/Lexer.cpp without defining __ALTIVEC__ and so
> is not including <altivec.h> . Building without __ALTIVEC__ might
> be an error itself but would be a workaround for the altivec.h
> file name aliasing vs. search-path problem.
>
> . . .
Going in a different direction, what of the unchanged Makefile.inc1
code block:
.if ${WANT_COMPILER_TYPE} == gcc || \
(defined(X_COMPILER_TYPE) && ${X_COMPILER_TYPE} == gcc)
# GCC requires -isystem and -L when using a cross-compiler. --sysroot
# won't set header path and -L is used to ensure the base library path
# is added before the port PREFIX library path.
CD2CFLAGS+= -isystem ${XDDESTDIR}/usr/include -L${XDDESTDIR}/usr/lib
# GCC requires -B to find /usr/lib/crti.o when using a cross-compiler
# combined with --sysroot.
CD2CFLAGS+= -B${XDDESTDIR}/usr/lib
# Force using libc++ for external GCC.
.if defined(X_COMPILER_TYPE) && \
${X_COMPILER_TYPE} == gcc && ${X_COMPILER_VERSION} >= 40800
CD2CXXFLAGS+= -isystem ${XDDESTDIR}/usr/include/c++/v1 -std=c++11 \
-nostdinc++
.endif
.endif
Why is that pair of -isystem uses that gives the old search order
okay? Or was the block just missed? (Similarly for other options
listed above.)
Note: Locally I've reverted the -r335782 changes in order for my use
of devel/*-gcc as cross compilers to work where they used to (hopefully:
still building), restoring the historical search order for the
directories for now.
===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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