[Buildroot] [PATCH v2 1/1] icu: detect and add compiler symbol prefix to the assembly code

[Thomas Petazzoni]

Dear Peter Korsgaard,

On Wed, 19 Feb 2014 23:50:01 +0100, Peter Korsgaard wrote:

> We recently added this patch to icu for bfin symbol prefix, but from
> todays autobuilder I see that icu's configure script completely doesn't
> support uclinux (E.G. bfin):
> 
> http://autobuild.buildroot.net/results/d11/d118b4f753ade63201758e1b14ca54d96ec77698/build-end.log
> 
> What's going on here? Should I revert this patch and instead mark icu as
> unavailable on bfin?

No. I believe icu support bfin-linux-uclibc (i.e FDPIC), but not
bfin-uclinux. I've modified icu so that it accepts bfin-uclinux as
well, but apparently icu generates an ELF file by itself (!), and puts
it in an .a archive. Which of course is not really to the taste of the
FLAT format ld used on bfin-uclinux.

I'm trying to figure out if icu can be convinced to generate source
code instead and compile it, but the icu source code is weird, to say
the least.

So I believe I will send a patch that disables ICU when !BR2_BINFMT_ELF.

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