Date: Mon, 14 Sep 2020 18:46:52 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Ronald Klop <ronald-lists@klop.ws> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: compiling with ports llvm11 breaks on mman.h: struct shm_larg epage_conf Message-ID: <5A7AD7E7-70ED-4029-9CD7-EE366FAE3BE8@FreeBSD.org> In-Reply-To: <11FD9B3A-E977-4188-99BF-B05BFDCFE923@FreeBSD.org> References: <op.0qt8mkhjkndu52@sjakie> <E9CD402D-D7AF-4947-9BA1-086ECE2D74A0@FreeBSD.org> <op.0qunatz6kndu52@sjakie> <11FD9B3A-E977-4188-99BF-B05BFDCFE923@FreeBSD.org>
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--Apple-Mail=_703E23A5-DEF2-4B57-AC75-6CBB6EB98799 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On 13 Sep 2020, at 20:56, Dimitry Andric <dim@FreeBSD.org> wrote: >=20 > On 12 Sep 2020, at 23:00, Ronald Klop <ronald-lists@klop.ws> wrote: >>=20 >> On Sat, 12 Sep 2020 18:28:03 +0200, Dimitry Andric <dim@freebsd.org> = wrote: >>> On 12 Sep 2020, at 17:43, Ronald Klop <ronald-lists@klop.ws> wrote: >>>>=20 >>>> Because I'm tired of hours of compilation of llvm/clang I'm testing = compiling FreeBSD with llvm11 from a pkg. > ... > It is during the building world stage and happens with and without = NO_CLEAN. >> Full command: >> /usr/local/bin/clang11 -O2 -pipe -fno-common -DNO__SCCSID = -DNO__RCSID -I/usr/src/lib/libc >> /include -I/usr/src/include -I/usr/src/lib/libc/amd64 -DNLS = -D__DBINTERFACE_PRIVATE -I/usr/ >> src/contrib/gdtoa -I/usr/src/contrib/libc-vis -DINET6 = -I/usr/obj/usr/src/amd64.amd64/lib/lib >> c -I/usr/src/lib/libc/resolv -D_ACL_PRIVATE -DPOSIX_MISTAKE = -I/usr/src/lib/libmd -I/usr/src/ >> contrib/jemalloc/include -DMALLOC_PRODUCTION = -I/usr/src/contrib/tzcode/stdtime -I/usr/src/li >> b/libc/stdtime -I/usr/src/lib/libc/locale -DBROKEN_DES -DPORTMAP = -DDES_BUILTIN -I/usr/src/li >> b/libc/rpc -DWANT_HYPERV -DYP -DNS_CACHING -DSYMBOL_VERSIONING -g -MD = -MF.depend.shm_open.o >> -MTshm_open.o -std=3Dgnu99 -Wno-format-zero-length -nobuiltininc = -idirafter /usr/local/llvm11 >> /lib/clang/11.0.0/include -fstack-protector-strong -Wsystem-headers = -Werror -Wall -Wno-format-y2k -Wno-uninitialized -Wno-pointer-sign = -Wno-empty-body -Wno-string-plus-int -Wno-unused- >> const-variable -Wno-tautological-compare -Wno-unused-value = -Wno-parentheses-equality -Wno-un >> used-function -Wno-enum-conversion -Wno-unused-local-typedef = -Wno-address-of-packed-member - >> Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter = -Qunused-arguments -I/usr/src/lib/libutil -I/usr/src/lib/msun/amd64 = -I/usr/src/lib/msun/x86 -I/usr/src/lib/msun/src -c /usr/ >> src/lib/libc/sys/shm_open.c -o shm_open.o >=20 > After a pretty long build of the llvm11 port, I can at least reproduce = your error. It looks like the problem is that clang11 does not get any = --sysroot parameter passed. ... > So except for the expected difference in the -idirafter option that = points to the clang internal headers, the main problem is that for some = reason, clang11 does not get the -target and --sysroot options passed. In the end it turns out that the problems is caused by setting CC (and = CXX, etc) in make.conf. This has the unfortunate side-effect that any = XCFLAGS are overridden during the world stages, such that the = all-important --sysroot flags is not added. In short, never set CC, CXX, CPP or LD in your make.conf or build = environment, but use XCC, XCXX, XCPP and XLD instead. Better yet, = install one of the llvm packages from the devel category, and set = CROSS_TOOLCHAIN. Keep an eye on https://wiki.freebsd.org/ExternalToolchain, which still = has a little bit of outdated information, but is hopefully going to be = updated soon. -Dimitry --Apple-Mail=_703E23A5-DEF2-4B57-AC75-6CBB6EB98799 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.2 iF0EARECAB0WIQR6tGLSzjX8bUI5T82wXqMKLiCWowUCX1+efAAKCRCwXqMKLiCW ozWVAJ9s1YTQBs9YxliVSLU912Etq6tHVwCggDHcqb1Dz5J1Owg0GfzyzqzCaws= =od9R -----END PGP SIGNATURE----- --Apple-Mail=_703E23A5-DEF2-4B57-AC75-6CBB6EB98799--
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