x86_64-pc-linux-gnu-gcc   -nostdlib -nostartfiles -shared -Wl,-z,now    \
                  -Wl,-z,combreloc -Wl,-z,relro -Wl,-z,defs -Wl,--verbose 2>&1 |        \
                  LC_ALL=C \
                  sed -e '/^=========/,/^=========/!d;/^=========/d'    \
                      -e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
                  > /var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/ld.so.lds
x86_64-pc-linux-gnu-gcc   -nostdlib -nostartfiles -shared -o /var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/ld.so         \
                  -Wl,-z,combreloc -Wl,-z,relro -Wl,-z,defs -Wl,-z,now  \
                  /var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os -Wl,--version-script=/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/ld.map                \
                  -Wl,-soname=ld-linux.so.2 -T /var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/ld.so.lds
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `_dl_lookup_symbol_x':
(.text+0x9739): undefined reference to `__sync_fetch_and_add_4'
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `_dl_lookup_symbol_x':
(.text+0x9793): undefined reference to `__sync_val_compare_and_swap_4'
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `_dl_profile_fixup':
(.text+0xcf61): undefined reference to `__sync_val_compare_and_swap_4'
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `_dl_profile_fixup':
(.text+0xcfc4): undefined reference to `__sync_fetch_and_add_4'
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `_dl_fixup':
(.text+0xd1ee): undefined reference to `__sync_val_compare_and_swap_4'
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `_dl_fixup':
(.text+0xd250): undefined reference to `__sync_fetch_and_add_4'
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `dl_open_worker':
dl-open.c:(.text+0x118ab): undefined reference to `__sync_val_compare_and_swap_4'
dl-open.c:(.text+0x118d6): undefined reference to `__sync_fetch_and_add_4'
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `_dl_close_worker':
(.text+0x127b7): undefined reference to `__sync_val_compare_and_swap_4'
/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/librtld.os: In function `_dl_close_worker':
(.text+0x127e5): undefined reference to `__sync_fetch_and_add_4'
collect2: ld returned 1 exit status
make[2]: *** [/var/tmp/portage/sys-libs/glibc-2.6/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/ld.so] Error 1
make[2]: Leaving directory `/var/tmp/portage/sys-libs/glibc-2.6/work/glibc-2.6/elf'
make[1]: *** [elf/subdir_lib] Error 2
make[1]: Leaving directory `/var/tmp/portage/sys-libs/glibc-2.6/work/glibc-2.6'
make: *** [all] Error 2
 *
 * ERROR: sys-libs/glibc-2.6 failed.
 * Call stack:
 *   ebuild.sh, line 1647:   Called dyn_compile
 *   ebuild.sh, line 988:   Called qa_call 'src_compile'
 *   ebuild.sh, line 44:   Called src_compile
 *   glibc-2.6.ebuild, line 1168:   Called src_compile
 *   glibc-2.6.ebuild, line 1179:   Called toolchain-glibc_src_compile
 *   glibc-2.6.ebuild, line 275:   Called die
 *
 * make for x86 failed
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/var/tmp/portage/sys-libs/glibc-2.6/temp/build.log'.
 *