[OE-core] [PATCH] bzip2-native: fix problems when bzip2-native is installed in parallel

[Yao Zhao]

On 12-07-24 09:57 AM, Burton, Ross wrote:
> On 24 July 2012 14:49, Yao Zhao <yao.zhao at windriver.com> wrote:
>> when bzip2-native is installed in parallel to sysroot, it is possible that
>> some packages are using bzip2 to unpack, there are chances that bzip2 is
>> installed to sysroot but libbz2.so.0 not installed yet because parallel
>> installation.
>> link bzip2 and bzip2recover statically to avoid this problem and don't lose
>> parallel installation. libbz2.so is still available.
> Is it me, or is this officially getting silly?  This probably happens
> for *every* binary in the sysroot that links to a library, which is
> probably a fair proportion of them.  Statically linking every single
> one and then special-casing further problems where a static link isn't
> sufficient (see pythonnative) just isn't going to scale.
HI Ross,

I agree.
I sent a discussion to openembedded-devel at lists.openembedded.org, 
probably I sent to a wrong list.

Can you give any suggestion or we need a whole solution for all those 
native binaries?

yao
Just forward here:

Hi all,

Got a problem about bzip2-native:

The reason is that when unpacking xextproto-7.2.0.tar.bz2, 
bzip2-native's build is triggered too because of another package's 
dependency. And loader can't find libbz2.so.0 which is in sysroot(host 
bzip2 used libbz2.so.1 so it is sure the libbz2.so.0 in sysroot) I have 
searched the paths in PATH below and only find bzip2 in 2 places: host 
/bin/bzip2 and sysroot bzip2.

In bzip2's Makefile, the install is make -j xxx ... although the install 
is first to install libbz2.so.0 then bzip2 but because of the "-j xxx" 
so it is possible that bzip2 is installed first but libbz2.so.0 is not 
ready yet(in a subshell this link is created).
So I have to make the install atomic or at least don't install in parallel.

so there are a couple of workarounds:
1.set PARALLEL_MAKEINST="" (one line change, and only one library, 2 
binaries installed(bzip2, bzip2recover) + 3 scripts + a couple of links)
2.make a statically linked bzip2 and bzip2recover
3.like perl or python native to make a bzip2-native subdir in sysroot 
then only packages explicitly inherit bzip2native which will set the path.

I need your advice!

thanks,
yao
> Ross
>
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