binutils: fix building on distros with matching binutils version
x86_64 opensuse 11.4 has bintuils version 2.21, and when
binutils_2.21 recipe is built for x86_64 target then, the invocation
of distro gcc fails with errors like this:
/usr/lib64/gcc/x86_64-suse-linux/4.5/../../../../x86_64-suse-linux/bin/as:
symbol lookup error: /usr/lib64/gcc/x86_64-suse-linux/4.5/..
make[2]: *** [sysinfo.o] Error 1
The issue rootcaused as incompatible LD_LIBRARY_PATH while running
the distro gcc.
As per Martin Jansa gentoo also sees similar issue with binutils 2.22
recipe.
This commit fixes the issue by clearing the LD_LIBRARY_PATH for
distro gcc (CC_FOR_BUILD)
This Fixes bug: [YOCTO #1833]
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
