Date: Tue, 06 Apr 2010 08:14:57 +0200 From: Andrea Venturoli <ml@netfence.it> To: pav@freebsd.org, freebsd-ports@freebsd.org Cc: thierry@freebsd.org Subject: Re: Problem with devel/libtool22? [was Re: OpenCASCADE marked broken] Message-ID: <4BBAD161.7060706@netfence.it> In-Reply-To: <20100405222608.GD37471@graf.pompo.net> References: <4BA93494.9080601@netfence.it> <20100405222608.GD37471@graf.pompo.net>
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On 04/06/10 00:26, Thierry Thomas wrote: > Le Mar 23 mar 10 à 22:37:24 +0100, Andrea Venturoli<ml@netfence.it> > écrivait : >> Just to let you know this used to work on 6.3, though I cannot test it >> anymore now. >> >> I can compile it without any problem on 7.2/i386, though I remove >> "USE_FORTRAN=yes". >> >> The latter is to avoid compilation with gcc4.4, which will lead to >> incompatibilities with other libraries (such as boost) I use on a >> project of mine. > > It should be fixed now. > > Actually, it used to work untill gcc-4.4.4.20100216. Gcc-44 is needed > because f77 has been removed from the base. Are you sure OpenCASCADE requires f77? I looked into the source and didn't find any file like "*.f" or "*.for", although of course they might have other extension or be generated during the build process. Also I can confirm it compiles with the base system gcc, although I don't remember if I had gcc44 installed at the time, so it might also be it picked f77 from gcc44 anyway. The whole point of the above is that, due to gcc44's libstdc++ recently becoming incompatible with older versions, if you mix different g++ versions in the same project, you'll get "Undefined symbol" errors when starting your executable. In my case, I'm linking (amongst others) against Boost and OpenCASCADE, so I need them to use the same compiler (and use that myself). Again, this is not a problem with OpenCASCADE only, but potentially affects any C++ library which is build with gcc44. bye & Thanks av.
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