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List:       glibc-help
Subject:    Cross build failure: CC doesn't support -z relro but LD does
From:       carlos_odonell () mentor ! com (Carlos O'Donell)
Date:       2012-08-10 13:27:00
Message-ID: 50250C16.1050400 () mentor ! com
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On 8/10/2012 1:51 AM, David Krauss wrote:
> I'm trying to cross compile glibc-2.16 on OS X for Linux.
> 
> More info: http://stackoverflow.com/q/11876066/153285
> 
> I've configured it like so:
> 
> ../glibc/configure --host=x86_64-pc-linux-gnu --build=x86_64-apple-darwin11 \
> --prefix=/usr/local/cross/linux/ --with-binutils=/usr/local/cross/linux/bin/ \
> --with-headers=/usr/local/cross/linux/include/ libc_cv_forced_unwind=yes \
> libc_cv_ctors_header=yes libc_cv_c_cleanup=yes 
> The build fails at the file stdio_lim.h, which is the first thing that happens \
> after the abi-tag.h target is made. So this is one of the first few build products. \
> It tries to build it via stdio_lim.st, finds no rule for that, and bails out. 
> Any ideas? Relevant details I left out?

Cross-compiling is difficult and requires considerable knowledge when the given \
configuration isn't well tested.

I would suggest using crosstool-ng and seeing if they have such a cross configuration \
already setup.

I know it's possible because there are people that cross compile Sourcery CodeBench \
sources so they can target ARM GNU/Linux from OS X which is basically the same thing.

I don't know what could be going wrong here and it's a deep and dark rabbit hole that \
could take days of intense work to figure out.

Sorry to be so dour about it :-(

Cross-compiling from Mac OS X is not something I see anyone testing frequently.

Cheers,
Carlos.
-- 
Carlos O'Donell
Mentor Graphics / CodeSourcery
carlos_odonell@mentor.com
carlos@codesourcery.com
+1 (613) 963 1026


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