using crosstool-ng with glibc and buildroot

Hello,

I'm not able to use the builds of crosstool-ng in buildroot as an external toolchain.

Buildroot Error:
Checking external toolchain settings
Cannot find cross-compiler /home/flo/x-tools/x86_64-unknown-linux-gnu/x86_64-unknown-linux-gnu/bin/-gcc
make: *** [/home/xx/xx/buildroot/buildroot-2009.08/build_x86_64/stamps/ext-toolchain-installed] Error 1

Buildroots want's a prefix like x86_64, but crosstools-ng builds a gcc without prefix

if i add a symlink to gcc with the prefix, i get this output:
Incorrect selection of the C library
make: *** [/home/flo/Arbeit/buildroot/buildroot-2009.08/build_x86_64/stamps/ext-toolchain-installed] Error 255

Buildroot doesn't find the library.

ext-tool.mk :

if ! test -f $${SYSROOT_DIR}/lib/ld-linux.so.* ; then \
		echo "Incorrect selection of the C library"; \
		exit -1; \
	fi; \

but crosstools output for ld is:
/lib/ld.so.1 and /lib/ld-2.9.so

what can i do?

thx
flo

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Le Mon, 14 Sep 2009 23:39:07 +0200,
"Florian Schimmer" <[email protected]> a ?crit :

Instead of pointing Buildroot
to /home/flo/x-tools/x86_64-unknown-linux-gnu/x86_64-unknown-linux-gnu/, could you point it to /home/flo/x-tools/x86_64-unknown-linux-gnu/ ? The bin/ directory in this directory should contain the cross-compiling tools with prefix.

Can you give me the full list of libraries in $${SYSROOT_DIR}/lib/ ? Here, on an ARM toolchain, I have a lib/ld-linux.so.3 symbolic link. Maybe it's different per architecture, in which case I could relax the test.

Sincerly,

Thomas

Thomas Petazzoni, Free Electrons
Kernel, drivers and embedded Linux development,
consulting, training and support.
http://free-electrons.com