apt-get source libc6=2.5.1-1eglibc27+0m5 cd glibc-2.5.1/ fakeroot dpkg-buildpackage ->fails
build-tree/glibc-2.5/elf/Makefile - -e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \ + -e 's/\. = .* + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
cd build-tree/armel-libc make ->success