Date: Fri, 13 Jul 2007 00:34:12 +0800 From: "Rong-en Fan" <grafan@gmail.com> To: ports@freebsd.org Cc: miwi@freebsd.org Subject: linking against pthread for a shared library Message-ID: <6eb82e0707120934pade7a6cw70dc324a47bc09be@mail.gmail.com>
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miwi@ and I are working on solving an issue with devel/upnp and misc/ushare problem. Essentially, the problem is that devel/upnp builds a shared library called libthreadutil.so which uses threading library. misc/ushare is a consumer of that library. On 7.x system, if you ldd on libthreadutil.so (this is i386) ./work/libupnp-1.6.0/threadutil/.libs/libthreadutil.so: liblwres.so.30 => /usr/lib/liblwres.so.30 (0x2817d000) libc.so.7 => /lib/libc.so.7 (0x2807e000) libthr.so.3 => /lib/libthr.so.3 (0x2818d000) But on 6.x and 5.x, you only get (this is amd64) ./work/libupnp-1.6.0/threadutil/.libs/libthreadutil.so: liblwres.so.10 => /usr/lib/liblwres.so.10 (0x800941000) So, one needs to pass -pthread when using libthreadutil.so. In my understanding, the behavior on 7.x is more correct (or reasonable). Any ideas how to solve this problem? Regards, Rong-En Fan
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