[Buildroot] [Bug 9771] toolchain-external misses lib directory when copying sysroot

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=9771

--- Comment #5 from Thomas Petazzoni <thomas.petazzoni at free-electrons.com> ---
OK, so the issue is that some libraries are in <sysroot>/lib64 (C library) and
some others are in <sysroot>/lib (gcc runtime), which is not something
Buildroot handles I believe.

Buildroot does a:

$ ./bin/x86_64-unknown-linux-gnu-gcc -print-file-name=libc.a
/home/thomas/dl/x86_64-unknown-linux-gnu/bin/../x86_64-unknown-linux-gnu/sysroot/usr/lib/../lib64/libc.a

And therefore decides that ARCH_LIB_DIR is "lib64", and therefore looks only in
<sysroot>/lib64 for libraries and not in <sysroot>/lib.

Is this a recent change in Crosstool-NG ? The old Crosstool-NG toolchain we
have at
http://autobuild.buildroot.net/toolchains/tarballs/x86_64-ctng_locales-linux-gnu.tar.xz
has everything in <sysroot>/lib, with <sysroot>/lib64 being a symbolic link to
<sysroot>/lib.

So, are we looking at a Buildroot bug, or a Crosstool-NG bug?

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