Date: Sat, 06 Sep 2003 02:40:23 +0200 From: YazzY <freebsd@yazzy.org> To: "Brandon S. Allbery KF8NH" <allbery@ece.cmu.edu> Cc: ports@freebsd.org Subject: Re: Problem with porting of an application which depends on linux libs. Message-ID: <3F592CF7.1000604@yazzy.org> In-Reply-To: <1062805199.25955.6.camel@pyanfar.ece.cmu.edu> References: <21881.193.215.241.28.1062803807.squirrel@mail.yazzy.org> <1062805199.25955.6.camel@pyanfar.ece.cmu.edu>
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Hi. Got it ported over to FreeBSD now. Thanks a lot Brandon. Brandon S. Allbery KF8NH wrote: > On Fri, 2003-09-05 at 19:16, Martin Jessa wrote: > >>The libdl library is included in glibc which is located in >>/usr/compat/linux/lib/libdl.so.2 >>How can I use this library with my port? >>I suspect it isn't possible to link freebsd executables against linux libs. >>Or is it? >> >> >>Error message: >>checking for dlsym in -ldl... no >>configure: error: libdl is required >>===> Script "configure" failed unexpectedly. > > > The short answer is "the application is Linux-specific". > > The longer one: dlsym() happens to be in -ldl on Linux, but is in -lc > on FreeBSD. config.in needs to be modified to check for dlsym() being > in libc, and only if it's not found try looking in -ldl; then autoconf > needs to be re-run to generate a new configure script. > > But this should be taken as a warning that there may be other hidden > Linux-specific issues to deal with; the fix is *never* to try to link > against Linux compatibility libraries, but to port the application to > use the appropriate FreeBSD libraries and services. >
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