[Buildroot] [PATCH] host-fakeroot: re-run autotools to fix build on ppc64le host

[Thomas Petazzoni]

Dear Stewart Smith,

On Thu,  3 Mar 2016 16:57:51 +1100, Stewart Smith wrote:
> When building on ppc64le host (notably Ubuntu 14.04, where this was
> reported), the configure/libtool combination in fakeroot would
> incorrectly detect that ld doesn't know how to build shared libraries.
> Instead of checking for ppc64le libs, it was checking if we could build
> *big* endian libraries, which the native Ubuntu toolchain on Ubuntu 14.04
> cannot. The end result would be that you wouldn't get libfakeroot.so,
> causing a build failure later on.
> 
> However, if we rerun autotools, this works. Additionally, due to
> the strange way that fakeroot builds, we need to mkdir build-aux as
> this directory does not exist in the original source package.
> 
> With this patch, you can now successfully build OpenPower firmware
> (which uses buildroot infrastructure) on an Ubuntu 14.04 ppc64le
> system.
> 
> Fixes: https://github.com/open-power/op-build/issues/194
> Signed-off-by: Stewart Smith <stewart at linux.vnet.ibm.com>

I understand the issue, but I don't really like the solution, because
it means that from now on, host-autoconf, host-automake and
host-libtool are always going to be built as dependencies of
host-fakeroot, making a "minimal" build longer.

Unfortunately, I don't have a lot of other proposals to make, except
maybe seeing if there is a more recent version of fakeroot that has
an already re-generated configure script that works for you.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com