Date: Wed, 15 Mar 2017 10:08:29 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-toolchain@FreeBSD.org Subject: [Bug 214258] devel/openmp: spurious libm dependency Message-ID: <bug-214258-29464-5OYI25lJYv@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-214258-29464@https.bugs.freebsd.org/bugzilla/> References: <bug-214258-29464@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D214258 Konstantin Belousov <kib@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kib@FreeBSD.org --- Comment #5 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to Jan Beich (mail not working) from comment #4) A library cannot 'pick up symbols without referencing them'. The presence = of the the undefined references means that there are real references in the co= de. Note that existence of libm.so as a separate shared object from libc is a m= inor optimization. The libm services are mandated by the C standard, so the separate library is only a way to slighly reduce working set of the programs that do not need them. Linking it in is fine. If you are so intolerate to the presence of -lm in the dependency list even when symbols are not referenced, you can use '-Wl,--as-needed -lm -Wl,--no-as-needed' construct to only record DT_NEEDED fro libm.so when references actually exist. --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=
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