From mboxrd@z Thu Jan  1 00:00:00 1970
From: Grant Edwards <grant.b.edwards@gmail.com>
Date: Thu, 7 Jan 2010 22:30:30 +0000 (UTC)
Subject: [Buildroot] MTD build failing: undefined ref's  to bcopy, bcmp
References: <hi377d$1i5$1@ger.gmane.org> <hi5437$id4$1@ger.gmane.org>
	<20100107183709.74ba1341@surf> <hi57as$vp6$1@ger.gmane.org>
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On 2010-01-07, Grant Edwards <grant.b.edwards@gmail.com> wrote:
> On 2010-01-07, Thomas Petazzoni <thomas.petazzoni@free-electrons.com> wrote:
>> Le Thu, 7 Jan 2010 17:02:31 +0000 (UTC),
>> Grant Edwards <grant.b.edwards@gmail.com> a ??crit :
>>
>>> I patched the bug in the mtd package so it's now building, but
>>> it won't run:
>>> 
>>>    # flash_info
>>>    flash_info: can't load library 'libgcc_s.so.1'
>>> 
>>> libgcc_s.so.1 appears in the staging directory,
>>> 
>>>    $ find . -name libgcc_s*
>>>    ./output/staging/usr/arm-linux-uclibc/lib/libgcc_s.so
>>>    ./output/staging/usr/arm-linux-uclibc/lib/libgcc_s.so.1
>>> 
>>> but it's not present in the target filesystem.
>>
>> Are you using a buildroot-generated toolchain or an external toolchain ?
>
> Yes. :)
>
> It's an external toolchain that was generated by buildtoot.

The problem is that buildroot expects to find libgcc,
libstdc++, et al in $(SYSROOT)/lib

That's not where buildroot puts them.

Buildroot puts them in $(SYSROOT)/usr/arm-linux-uclibc/lib

Apparently, toolchains built by Buildroot aren't suitable for
use as external toolchains without some post-build massaging.

-- 
Grant Edwards                   grante             Yow! I brought my BOWLING
                                  at               BALL -- and some DRUGS!!
                               visi.com