Re: "cannot find -lppl_c" link error

[Mr Dash Four <mr.dash.four@googlemail.com>]

>> It looks as though ld cannot find "ppl_c" (not ppl!). What is ppl_c? The build environment I use is x86_64 (quad core CPU), running heavily upgraded and updated FC13 (most of the components are based on FC14 & FC15). The target device is htcdream (ARMv6).
>>
>> Any idea what is causing this?
>>     
>
> somehow gcc build is detecting that you have enabled PPL support, I
> dont think we either enable or disable it by default.
I think this is a necessity for building gcc as it needs ppl, 
cloog(-ppl) among other core libraries. As far as I know I can't just 
"disable it".

>  So I think your
> build system has the header file ppl_c.h installed but library itself
> is not installed.
I take it you mean ppl on my host arch (x86_64 in my case). if so:

[root@test1 ~]# rpm -qa | grep ppl
cloog-ppl-0.15.7-1.fc12.x86_64
ppl-devel-0.10.2-10.fc12.x86_64
ppl-0.10.2-10.fc12.x86_64
cloog-ppl-devel-0.15.7-1.fc12.x86_64
[root@test1 ~]# ls -las /usr/lib64/libppl*
   0 lrwxrwxrwx. 1 root root      17 Nov 25  2010 /usr/lib64/libppl_c.so 
-> libppl_c.so.2.1.0
   0 lrwxrwxrwx. 1 root root      17 Jun 17  2010 
/usr/lib64/libppl_c.so.2 -> libppl_c.so.2.1.0
3496 -rwxr-xr-x. 1 root root 3579376 Sep 11  2009 
/usr/lib64/libppl_c.so.2.1.0
   0 lrwxrwxrwx. 1 root root      15 Nov 25  2010 /usr/lib64/libppl.so 
-> libppl.so.7.1.0
   0 lrwxrwxrwx. 1 root root      15 Jun 17  2010 /usr/lib64/libppl.so.7 
-> libppl.so.7.1.0
 756 -rwxr-xr-x. 1 root root  772032 Sep 11  2009 /usr/lib64/libppl.so.7.1.0
[root@test1 ~]# ls -las /usr/include/ppl*
   4 -rw-r--r--. 1 root root    1676 Sep 11  2009 /usr/include/ppl_c.h
 364 -rw-r--r--. 1 root root  370045 Sep 11  2009 
/usr/include/ppl_c-x86_64.h
   4 -rw-r--r--. 1 root root    1676 Sep 11  2009 /usr/include/ppl.hh
2340 -rw-r--r--. 1 root root 2394720 Sep 11  2009 /usr/include/ppl-x86_64.hh

As you can see, I have all of the above and the appropriate libppl_c 
files are where they should be.

>  If you remove ppl installation from your build host
> it would work and if you install the ppl packages propertly it should
> work too.
>   
No, it won't! As I stated above gcc depends on these libraries so I 
can't just remove them:

[root@test1 ~]# rpm --erase --test ppl ppl-devel cloog-ppl cloog-ppl-devel
error: Failed dependencies:
    cloog-ppl >= 0.15 is needed by (installed) gcc-4.4.5-2.fc13.x86_64
[root@test1 ~]# rpm --erase --test ppl ppl-devel                         
error: Failed dependencies:
    libppl.so.7()(64bit) is needed by (installed) 
cloog-ppl-0.15.7-1.fc12.x86_64
    libppl_c.so.2()(64bit) is needed by (installed) 
cloog-ppl-0.15.7-1.fc12.x86_64
    ppl-devel >= 0.10 is needed by (installed) 
cloog-ppl-devel-0.15.7-1.fc12.x86_64

Any ideas why OE can't find my ppl_c libs?