Date: Sun, 21 May 2017 21:47:23 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Dimitry Andric <dim@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r318594 - in head: lib lib/libc++experimental tools/build/mk Message-ID: <20170521184723.GL1622@kib.kiev.ua> In-Reply-To: <55649C56-DA8E-41C5-91B4-E72FB6A07CBC@FreeBSD.org> References: <201705211707.v4LH7CbN016259@repo.freebsd.org> <20170521180042.GK1622@kib.kiev.ua> <55649C56-DA8E-41C5-91B4-E72FB6A07CBC@FreeBSD.org>
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On Sun, May 21, 2017 at 08:34:31PM +0200, Dimitry Andric wrote: > On 21 May 2017, at 20:00, Konstantin Belousov <kostikbel@gmail.com> wrote: > > > > On Sun, May 21, 2017 at 05:07:12PM +0000, Dimitry Andric wrote: > >> Author: dim > >> Date: Sun May 21 17:07:12 2017 > >> New Revision: 318594 > >> URL: https://svnweb.freebsd.org/changeset/base/318594 > >> > >> Log: > >> Add libc++experimental.a for std::experimental support > >> > >> This adds a separate library for supporting std::experimental features. > >> It is purposefully static, and must be explicitly linked into programs > >> using -lc++experimental. > >> > >> PLEASE NOTE: there is NO WARRANTY as to any stability or continuing > >> existence of the features in the std::experimental parts of the C++ > >> library! > >> > >> Reviewed by: ed > >> Differential Revision: https://reviews.freebsd.org/D10840 > >> > >> Added: > >> head/lib/libc++experimental/ > >> head/lib/libc++experimental/Makefile (contents, props changed) > >> Modified: > >> head/lib/Makefile > >> head/tools/build/mk/OptionalObsoleteFiles.inc > >> > >> Modified: head/lib/Makefile > >> ============================================================================== > >> --- head/lib/Makefile Sun May 21 15:37:08 2017 (r318593) > >> +++ head/lib/Makefile Sun May 21 17:07:12 2017 (r318594) > >> @@ -156,7 +156,7 @@ _libclang_rt= libclang_rt > >> > >> .if ${MK_LIBCPLUSPLUS} != "no" > >> _libcxxrt= libcxxrt > >> -_libcplusplus= libc++ > >> +_libcplusplus= libc++ libc++experimental > >> .endif > >> > >> SUBDIR.${MK_EFI}+= libefivar > >> > >> Added: head/lib/libc++experimental/Makefile > >> ============================================================================== > >> --- /dev/null 00:00:00 1970 (empty, because file is newly added) > >> +++ head/lib/libc++experimental/Makefile Sun May 21 17:07:12 2017 (r318594) > >> @@ -0,0 +1,29 @@ > >> +# $FreeBSD$ > >> + > >> +.include <src.opts.mk> > >> + > >> +PACKAGE= clibs > >> +SRCDIR= ${SRCTOP}/contrib/libc++ > >> + > >> +LIB= c++experimental > >> +NO_PIC= > > I suspect for this case it is almost required to provide > > libc++experimental_pic.a, otherwise linking the lib to dso would > > cause textrel. > > Hmm, I don't know how to tell the build system otherwise that I don't > want any shared library. It looks like NO_PIC is needed in bsd.lib.mk > to force no .so to be built, though. > > Maybe it is easier to just build the .a file with -fPIC always? There > is really no need for two .a files. May be, indeed.
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