Date: Sun, 23 Oct 2016 12:17:08 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Re: Unable to build with --enable-shared On Sun, Oct 23, 2016 at 02:22:28AM +0200, Samuel Sadok wrote: > 2016-10-22 23:58 GMT+02:00 Szabolcs Nagy <nsz@...t70.net>: > > * Samuel Sadok <innovation-labs@...install.ch> [2016-10-22 22:37:46 +0200]: > >> I am unable to build musl with --enable-shared. Multiple issues in > >> unrelated projects (e.g. here: https://bugs.swift.org/browse/SR-1023) > >> suggest that the culprit is a change in behaviour between binutils > >> 2.25 and 2.26. > >> > > > > that bug is different, that's about object symbols > > > > (swift seems to misuse protected visibility objects, > > and instead of fixing the problem they switched to the > > gold linker which does not yet have the bfd linker fix, > > such incompetence is frustrating.. however the issue > > does not affect musl: we don't mark objects protected > > to avoid issues with broken toolchains.) > > That's precisely why I'm trying to get away from Apple. > > > > >> $ make > >> [...] > >> x86_64-pc-linux-gnu-gcc -D_XOPEN_SOURCE=700 -I./arch/x86_64 > >> -I./arch/generic -Iobj/src/internal -I./src/internal -Iobj/include > >> -I./include -include vis.h -B/usr/local/bin/x86_64-pc-linux-gnu- > >> -fPIC -c -o obj/src/process/posix_spawn.lo src/process/posix_spawn.c > > > > some flags are missing here.. e.g. freestanding flags > > Thanks for the pointer, that turned out to be the problem. > > I should mention that I am cross-compiling from macOS. Since I had a > Linux VM flying around, I tried to build musl there (success) and > compared the logs. > Looking at config.mak, there apparently was a serious misconfiguration: > > config.mak on the cross-build system (macOS): > > CFLAGS_AUTO = -include vis.h > CFLAGS_C99FSE = > CFLAGS_MEMOPS = > CFLAGS_NOSSP = > LDFLAGS_AUTO = > LIBCC = This probably indicates something is wrong with your cross toolchain; even if you manually fix config.mak, I would be concerned that something might have been built wrong. What cross toolchain are you using and how was it setup? How did you invoke configure? Rich
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