Re: [gentoo-soc] Gentoo on Android, Summary for 2013.6.28-7.1

[heroxbd <heroxbd@gmail.com>]

Luca Barbato <lu_zero@gentoo.org> writes:

>> 
>> econf --with-extra-specs='{ "dynamic-linker", "/opt/gentoo/lib/ld-linux.so.2" }'
>> 
>> However, GNU autoconf/automake system automatically quote this to
>> a string, while we want to pass an array of structures.
>
> There is an unquote macro and you can always use eval to expand once.

Ah, I see. 

>> Another solution is to prepend sysroot to dynamic linker, which is
>> indifferent to the runtime-prefix patch from Google, criticized by you
>> earlier.
>
> The Google patch is a step in a direction, just you could just unify
> first and make it prefix-variable later 

Not sure if I understood your words. It is nearly impossible to
prefixify the directories afterwards, as they are conditioned by
-m32/-m64/-mx32, etc.

> instead of adding a prefix to all the custom patches scattered in the
> codebase as it is now.


>> Up to this point, the solution becomes complex and artificial. I
>> would rather use the present patch'n'prefixify method, as we used
>> in many ebuild, like:
>> 
>> --- gcc/config/i386/linux.h     2011-06-04 03:30:39.000000000 +0900
>> +++ gcc/config/i386/linux.h.new 2013-07-16 19:55:09.610399047 +0900
>> @@ -21,4 +21,4 @@ along with GCC; see the file COPYING3.
>>  <http://www.gnu.org/licenses/>.  */
>>  
>>  #define GNU_USER_LINK_EMULATION "elf_i386"
>> -#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
>> +#define GLIBC_DYNAMIC_LINKER "@GENTOO_PORTAGE_EPREFIX@/lib/ld-linux.so.2"
>
> So first you patch the paths with something you can sed fill later.

Yes.

> Works for me to get a result now. Then we can pester upstream 

Exactly, http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52556

> or just consider switching to clang (a different kind of pain to
> bootstrap).

ok, I'll get my hands dirty with it.