Date: Mon, 28 Feb 2011 00:43:32 -0600 From: Ade Lovett <ade@FreeBSD.org> To: FreeBSD Ports <freebsd-ports@freebsd.org> Subject: Re: multiple definition of `__i686.get_pc_thunk.bx' Message-ID: <DC1AA53E-8767-4F6B-A59C-4AD7738DDB3D@FreeBSD.org> In-Reply-To: <20110228014612.GA72748@comcast.net> References: <20110225094102.GH21668@droso.net> <4D6AB2E6.1000107@missouri.edu> <20110228014612.GA72748@comcast.net>
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> On Sun 27 Feb 2011 at 12:24:06 PST Stephen Montgomery-Smith wrote: >> I am the maintainer of the port vis5d+. I just got this email = (copied below) saying that vis5d+ isn't building right now. >>=20 >> The issue seems to be that some reference to __i686.get_pc_thunk.bx = is included twice at some point. This variable seems to be part of an = object file crtbeginS.o that is created by gcc or gcc45, in what seem to = me to be very mysterious conditions. I am rather sure that the issue = has nothing to do with vis5d+, but rather is something to do with either = gcc45, or libtools, neither of which I understand. >>=20 >> Does anyone out there have any idea of what the problem is, or how it = can be solved? >>=20 =46rom a relatively cursory examination, this appears to be a flaw in = the USE_FORTRAN=3Dyes stanza. This will bring in gcc45 as a dependency = but doesn't appear to be setting CXX to g++45 though it does do = CC=3Dgcc45. Possibly the same for LD, though I haven't checked that. With parts of the code being compiled against gcc45, and then an = attempted link with the system compiler (CC/LD), then naturally things = will go south, irrespective of whether libtool is being used. I would hazard a guess that if ya'll added USE_GCC=3D45 to vis5d+'s = Makefile, things will link properly. If someone could test this, that'd = be peachy. If it turns out that this works, then it would be a minor = tweak to bsd.gcc.mk to forcibly set USE_GCC if USE_FORTRAN is also set, = to allow all of the environmental variables to be punched out for = compilation. -aDe
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