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Опц |
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On Fri, 25 Mar 2016 13:35:47 +0100 Dan Johansson wrote: |
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> I have setup one of my VM's to do cross-compiling for my Raspberry PI 2. |
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> Now some packages (e.g. app-editors/vim and its dependencies) emerges |
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> fine while other (e.g. net-misc/wget or rather one of its dependencies |
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> dev-libs/libpcre-8.38:3) does not. |
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Cross-compilation is a pain, really. Probably it will be easier and |
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faster to emulate CPU using qemu. Of course, if you'll go on the |
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road of cross-compiling and will send patches, this will be a great |
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enhancement for others. |
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|
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> What I have done is this: |
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> # emerge sys-devel/crossdev |
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> (installed sys-devel/crossdev-20150716) |
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> |
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> # crossdev -S -P -v -t armv7a-hardfloat-linux-gnueabi |
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> (which "installed" fine without any errors) |
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> |
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> # armv7a-hardfloat-linux-gnueabi-emerge --verbose --oneshot |
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> =net-misc/wget-1.16.3-r1 |
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> |
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> Which pulls in dev-libs/libpcre-8.38:3::gentoo which then fails with this: |
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> |
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> ln -sf pcre_compile2.3 |
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> /usr/armv7a-hardfloat-linux-gnueabi/tmp/portage/dev-libs/libpcre-8.38/image//usr/share/man/man3/pcre16_compile2.3 |
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> /usr/libexec/gcc/armv7a-hardfloat-linux-gnueabi/ld: skipping |
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> incompatible /usr/lib/libpthread.so when searching for -lpthread |
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> /usr/libexec/gcc/armv7a-hardfloat-linux-gnueabi/ld: skipping |
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> incompatible /usr/lib/libc.so when searching for -lc |
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> /usr/lib/libc.a: error adding symbols: File format not recognized |
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> collect2: error: ld returned 1 exit status |
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The problem is that build system tries to utilize system libraries |
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(libc, libpthread) instead of cross-compiled versions. You should |
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modify it in order to provide correct path, e.g. by passing a proper |
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--sysroot=... to a linker. |
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Best regards, |
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Andrew Savchenko |
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