Compilation fails with following:

gcc   -nostdlib -nostartfiles -r -o /usr/src/glibc-build/libc_pic.os \
         -Wl,-d -Wl,--whole-archive /usr/src/glibc-build/libc_pic.a
/usr/src/glibc-build/libc_pic.a(idn-stub.os): In function `__idna_to_ascii_lz':
idn-stub.c:(.text+0x0): multiple definition of `__idna_to_ascii_lz'
/usr/src/glibc-build/libc_pic.a(idn-stub.os):idn-stub.c:(.text+0x0): first
defined here
/usr/src/glibc-build/libc_pic.a(idn-stub.os): In function `__idna_to_unicode_lzlz':
idn-stub.c:(.text+0x140): multiple definition of `__idna_to_unicode_lzlz'
/usr/src/glibc-build/libc_pic.a(idn-stub.os):idn-stub.c:(.text+0x140): first
defined here
collect2: ld returned 1 exit status
make[1]: *** [/usr/src/glibc-build/libc_pic.os] Error 1
make[1]: Leaving directory `/usr/src/glibc-2.4'
make: *** [all] Error 2

GCC 4.1.1 (attempted also with gcc 4.1.0)
CFLAGS = -march=athlon64 -mcpu=athlon64 -mmmx -msse -msse2 -m3dnow
-mfpmath=sse,387 -O3 -fno-inline-functions
Linux 2.6.19.2