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On Sunday 23 April 2006 23:52, Steven Newbury wrote: > --- Mike Frysinger <vapier@gentoo.org> wrote: > > On Sunday 23 April 2006 20:08, Steven Newbury wrote: > > > Since I've got > > > you attention I'd like to ask a question about the gcc ebuild; when a > > > cross-<target>/gcc is installed the gcc library path gets added via > > > LDPATH to the env.d -> ld.so.conf, this puts incompatible libraries in > > > the library search path which causes dynamic linking to then fail for > > > native programs that find the alien library before the native one they > > > seek. I assume this is not intended! I made the LDPATH addition > > > conditional on is_crosscompile and CHOST != CTARGET, is that OK? > > > > gcc-config already handles this by not inserting stuff into ld.so.conf > > when selecting a cross-compiler ... so having LDPATH declared > > in /etc/env.d/gcc/CTARGET-VERSION isnt a bug > > Or rather that isn't where the bug is/was! I was getting non-native paths > in ld.so.conf. Hmm. make sure you have the latest gcc-config ... ive fixed up cross-compiling logic in there a lot over time ... but i have about ~25 cross-compilers installed on my machine and havent had their non-native paths leak into my ld.so.conf ... > Yes, this is very true, though I did for a reason. I use the ebuild for > building the cross-compiler as well as the native compiler and it seemed > the only way to get the CFLAGS respected by the build process. for setting up the cross-compiler there is a helper 'crossdev' script which takes care of all the mundane details ... # emerge crossdev # crossdev arm-iwmmxt-linux-gnueabi the trick for cross-compiling into ROOT is to setup a wrapper: $ cat cmerge #!/bin/bash export ROOT=/mnt/arm-eabi export CFLAGS="-Os -march=iwmmxt ......" ..... exec emerge "$@" $ cmerge sys-libs/glibc -mike -- For unsubscribe information see http://sourceware.org/lists.html#faq
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