Date: Sun, 22 Jan 2017 22:11:32 +0100 From: Dimitry Andric <dim@FreeBSD.org> To: Johannes Lundberg <johalun0@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: Linker problems with clang /usr/local/lib Message-ID: <C280F115-A85F-4CB8-AC69-8B6ED10225F3@FreeBSD.org> In-Reply-To: <CAECmPwvGa-Z0cUYgKvSz%2BV_5LoTccWDirAGMLD=_2jXhJKJkFw@mail.gmail.com> References: <CAECmPwvq07zQ2H6wUk85=QhcbVE2Hu-vSQF3anhuStomkx7yGA@mail.gmail.com> <D6AD09B8-A7B6-4498-84F8-9A31B4AAB8A0@FreeBSD.org> <CAECmPwvGa-Z0cUYgKvSz%2BV_5LoTccWDirAGMLD=_2jXhJKJkFw@mail.gmail.com>
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[-- Attachment #1 --] It only does so on Linux. This has always been the case, but apparently it was never noted clearly in the man page. -Dimitry > On 22 Jan 2017, at 21:57, Johannes Lundberg <johalun0@gmail.com> wrote: > > I found a way to pass various linker flags to Rust through the .cargo/config file which is doable for now. > > However, in man pages it says that ld looks in /etc/ld.so.conf for paths.. This seem broken. While a solution, having to write wrappers sounds like a workaround that shouldn't be needed... > > > On Sun, Jan 22, 2017 at 12:42 PM, Dimitry Andric <dim@freebsd.org> wrote: > On 22 Jan 2017, at 21:29, Johannes Lundberg <johalun0@gmail.com> wrote: > > > > How can I make 'cc' (/usr/bin/ld) look for libraries in /usr/local/lib > > without having to specify environment or command line variables? > > > > I got "/usr/local/lib" in /etc/ld.so.conf and /var/run/ld-elf.so.hints. > > > > /sbin/ldconfig -l xxx can find library xxx in /usr/local/lib > > > > /usr/bin/ld can not. > > > > This is a problem when building Rust crates with Cargo which does not care > > about env variables like LDFLAGS. I can however override the linker and use > > 'gcc' which solves the problem but I assume it should be possible to get > > clang (cc) to look in /usr/local/lib as well. > > > > Anyone got any ideas? > > Create a wrapper script that adds -L/usr/local/lib to the link command > line, and invokes the 'real' cc or ld. Then either let Rust call the > wrappers, or put them in a directory that is in front of your PATH. > > -Dimitry > > [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.30 iEYEARECAAYFAliFIAoACgkQsF6jCi4glqO0jgCfbHq6B1DwhNhfuFcKzjNkfmaa Fz4AoI3P+PzOVQl6mHgJAEkP41nHDP9Z =n/Zs -----END PGP SIGNATURE-----help
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