Date: Wed, 02 Sep 1998 21:01:17 +0200 From: Mark Murray <mark@grondar.za> To: John Polstra <jdp@polstra.com> Cc: current@FreeBSD.ORG Subject: Re: B CURRENT Build environment (Was: Re: Why no ldconfig for ELF?) Message-ID: <199809021901.VAA02093@gratis.grondar.za>
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John Polstra wrote:
> > lib/auto/POSIX/POSIX.so:
> > LD_RUN_PATH=\"${WORLDTMP}${SHLIBDIR}:${WORLDTMP}/usr/lib\" \
> > sh ext/util/make_ext dynamic ${.TARGET} \
> > MAKE=make PERL_SRC=${.OBJDIR}
> >
> > The line beginning LD_RUN_PATH is the critical bit; I need to pass
> > the current _build_ directory containing the ELF libraries (this system
> > is currently a.out). What is the right way to do this? The above does not
> > work, as ${WORLDTMP} is not set here, only in /usr/src/Makefile.inc1.
>
> In general, you want to set LD_RUN_PATH to the directories where
> needed shared libraries will be found after they are installed into
> their final resting places. If you need to use the libraries before
> they are installed, it's best to use LD_LIBRARY_PATH to say where
> they are at that point in time.
I screwed up something - the LD_RUN_PATH above is the wrong one
but I still need to tell the linker what library path to link
against; it defaults to "/usr/lib/aout:/usr/lib". That is correct
for runtime, but not for link time.
IE: In an earlier part of the build, the following linked correctly:
cc -O -pipe -I/usr/obj/elf/usr/src/gnu/usr.bin/perl5/miniperl -I/usr/src/gnu/usr.bin/perl5/miniperl/../../../../contrib/perl5 -static -I/usr/obj/elf/usr/src/tmp/usr/include -o miniperl miniperlmain.o -L/usr/obj/elf/usr/src/gnu/usr.bin/perl5/miniperl/../libperl -lperl -lm -lcrypt
In my makefile fragment (above, quoted), it fails, because a needed
lib (-lm) in /usr/lib/aout is not ELF, because the necessary
environment info is not being passed. I want to specify what lib
dirs to search in, but I do not know where that is available from
(Macro? Script? ENV?). WORLDTMP looks promising, but it is not visible
in the makefile I am using.
(I'm asking dumb questions because it takes an hour to find out
how wrong I am each time :-) )
M
--
Mark Murray
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