I am trying to build cross toolchain by looking at CLFS.
Here , instead of nptl I am using linuxthreads.
Tools used are:
linux-2.6.15.1
binutils-2.14
gcc-4.0.2
glibc-2.3.6
glibc-linuxthreads-2.3.6

After installing bootstrap compiler, when I tried to compile glibc I am getting error.I have installed binutils,glibc headers and bootstrap compiler successfully.


To configure:
BUILD_CC="gcc" CC="${LFS_TARGET}-gcc" \
AR="${LFS_TARGET}-ar" RANLIB="${LFS_TARGET}-ranlib" \
../glibc-2.3.6/configure --prefix=/tools \
--host=${LFS_TARGET} --build=${LFS_HOST} \
--disable-profile --enable-add-ons=linuxthreads \
--with-tls --enable-kernel=2.6.15.1 --with-__thread \
--with-binutils=/cross-tools/bin --with-headers=/tools/include \
--cache-file=config.cache

Here comes the error.

To compile :
make
.......
.......
...

make[3]: Leaving directory `/mnt/lfs/sources/glibc-2.3.6/elf'
i686-pc-linux-gnu-gcc interp.c -c -std=gnu99 -O2 -Wall -Winline -Wstrict-prototypes -Wwrite-strings -g -mpreferred-stack-boundary=2 -fPIC -D'RUNTIME_LINKER="/tools/lib/ld-linux.so.2"' -DNOT_IN_libc=1 -I../include -I. -I/mnt/lfs/sources/glibc-build/elf -I.. -I../libio -I/mnt/lfs/sources/glibc-build -I../sysdeps/i386/elf -I../linuxthreads/sysdeps/unix/sysv/linux/i386 -I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread -I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv -I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/i386/i686 -I../linuxthreads/sysdeps/i386 -I../sysdeps/unix/sysv/linux/i386 -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv/i386 -I../sysdeps/unix/sysv -I../sysdeps/unix/i386 -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/i386/i686/fpu -I../sysdeps/i386/i686 -I../sysdeps/i386/i486 -I../sysdeps/i386/fpu -I../sysdeps/i386 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic -nostdinc -isystem /mnt/lfs/cross-tools/bin/../lib/gcc/i686-pc-linux-gnu/4.0.2/include -isystem /tools/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h -DPIC -DSHARED -o /mnt/lfs/sources/glibc-build/elf/interp.os -MD -MP -MF /mnt/lfs/sources/glibc-build/elf/interp.os.dt -MT /mnt/lfs/sources/glibc-build/elf/interp.os
make[2]: Leaving directory `/mnt/lfs/sources/glibc-2.3.6/elf'
cd /mnt/lfs/sources/glibc-build && /mnt/lfs/cross-tools/bin/../lib/gcc/i686-pc-linux-gnu/4.0.2/../../../../i686-pc-linux-gnu/bin/ar cruv libc.a `cat csu/stamp.o iconv/stamp.o iconvdata/stamp.o locale/stamp.o localedata/stamp.o assert/stamp.o ctype/stamp.o intl/stamp.o catgets/stamp.o math/stamp.o setjmp/stamp.o signal/stamp.o stdlib/stamp.o stdio-common/stamp.o libio/stamp.o dlfcn/stamp.o malloc/stamp.o string/stamp.o wcsmbs/stamp.o timezone/stamp.o time/stamp.o dirent/stamp.o grp/stamp.o pwd/stamp.o posix/stamp.o io/stamp.o termios/stamp.o resource/stamp.o misc/stamp.o socket/stamp.o sysvipc/stamp.o gmon/stamp.o gnulib/stamp.o wctype/stamp.o manual/stamp.o shadow/stamp.o po/stamp.o argp/stamp.o crypt/stamp.o linuxthreads/stamp.o resolv/stamp.o nss/stamp.o rt/stamp.o conform/stamp.o debug/stamp.o linuxthreads_db/stamp.o inet/stamp.o hesiod/stamp.o sunrpc/stamp.o nis/stamp.o nscd/stamp.o streams/stamp.o login/stamp.o elf/stamp.o stamp.o`
r - csu/version.o
: /mnt/lfs/sources/glibc-build/libc.a
i686-pc-linux-gnu-gcc -nostdlib -nostartfiles -r -o /mnt/lfs/sources/glibc-build/libc_pic.os \
-Wl,-d -Wl,--whole-archive /mnt/lfs/sources/glibc-build/libc_pic.a
i686-pc-linux-gnu-gcc -shared -Wl,-O1 \
-nostdlib -nostartfiles \
-Wl,-dynamic-linker=/tools/lib/ld-linux.so.2 -Wl,-z,combreloc \
-Wl,--verbose 2>&1 | \
sed > /mnt/lfs/sources/glibc-build/shlib.ldsT \
-e '/^=========/,/^=========/!d;/^=========/d' \
-e 's/^.*\.hash[ ]*:.*$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
-e 's/^.*\*(\.dynbss).*$/& \
PROVIDE(__start___libc_freeres_ptrs = .); \
*(__libc_freeres_ptrs) \
PROVIDE(__stop___libc_freeres_ptrs = .);/'\
-e 's/^.*\*(\.jcr).*$/& \
PROVIDE(__start___libc_subfreeres = .);\
__libc_subfreeres : { *(__libc_subfreeres) }\
PROVIDE(__stop___libc_subfreeres = .);\
PROVIDE(__start___libc_atexit = .);\
__libc_atexit : { *(__libc_atexit) }\
PROVIDE(__stop___libc_atexit = .);\
PROVIDE(__start___libc_thread_subfreeres = .);\
__libc_thread_subfreeres : { *(__libc_thread_subfreeres) }\
PROVIDE(__stop___libc_thread_subfreeres = .);/'
mv -f /mnt/lfs/sources/glibc-build/shlib.ldsT /mnt/lfs/sources/glibc-build/shlib.lds
i686-pc-linux-gnu-gcc -shared -static-libgcc -Wl,-O1 -Wl,-z,defs -Wl,-dynamic-linker=/tools/lib/ld-linux.so.2 -B/mnt/lfs/sources/glibc-build/csu/ -Wl,--version-script=/mnt/lfs/sources/glibc-build/libc.map -Wl,-soname=libc.so.6 -Wl,-z,combreloc -nostdlib -nostartfiles -e __libc_main -L/mnt/lfs/sources/glibc-build -L/mnt/lfs/sources/glibc-build/math -L/mnt/lfs/sources/glibc-build/elf -L/mnt/lfs/sources/glibc-build/dlfcn -L/mnt/lfs/sources/glibc-build/nss -L/mnt/lfs/sources/glibc-build/nis -L/mnt/lfs/sources/glibc-build/rt -L/mnt/lfs/sources/glibc-build/resolv -L/mnt/lfs/sources/glibc-build/crypt -L/mnt/lfs/sources/glibc-build/linuxthreads -Wl,-rpath-link=/mnt/lfs/sources/glibc-build:/mnt/lfs/sources/glibc-build/math:/mnt/lfs/sources/glibc-build/elf:/mnt/lfs/sources/glibc-build/dlfcn:/mnt/lfs/sources/glibc-build/nss:/mnt/lfs/sources/glibc-build/nis:/mnt/lfs/sources/glibc-build/rt:/mnt/lfs/sources/glibc-build/resolv:/mnt/lfs/sources/glibc-build/crypt:/mnt/lfs/sources/glibc-build/linuxthreads -o /mnt/lfs/sources/glibc-build/libc.so -T /mnt/lfs/sources/glibc-build/shlib.lds /mnt/lfs/sources/glibc-build/csu/abi-note.o /mnt/lfs/sources/glibc-build/elf/soinit.os /mnt/lfs/sources/glibc-build/libc_pic.os /mnt/lfs/sources/glibc-build/elf/sofini.os /mnt/lfs/sources/glibc-build/elf/interp.os /mnt/lfs/sources/glibc-build/elf/ld.so -lgcc
/mnt/lfs/sources/glibc-build/libc_pic.os(.text+0xb48f2): In function `*__GI___register_atfork':
../linuxthreads/sysdeps/pthread/list.h:61: undefined reference to `__fork_block'
/mnt/lfs/sources/glibc-build/libc_pic.os(.text+0xb48f8):../linuxthreads/sysdeps/pthread/list.h:60: undefined reference to `__fork_block'
/mnt/lfs/sources/glibc-build/libc_pic.os(.text+0xb4905):../linuxthreads/sysdeps/pthread/list.h:63: undefined reference to `__fork_block'
/mnt/lfs/sources/glibc-build/libc_pic.os(.text+0xb490f):../linuxthreads/sysdeps/pthread/list.h:60: undefined reference to `__fork_block'
/mnt/lfs/sources/glibc-build/libc_pic.os(.text+0xb4915):../linuxthreads/sysdeps/pthread/list.h:61: undefined reference to `__fork_block'
/mnt/lfs/sources/glibc-build/libc_pic.os(.text+0xb4922):../linuxthreads/sysdeps/pthread/list.h:63: more undefined references to `__fork_block' follow
collect2: ld returned 1 exit status
make[1]: *** [/mnt/lfs/sources/glibc-build/libc.so] Error 1
make[1]: Leaving directory `/mnt/lfs/sources/glibc-2.3.6'
make: *** [all] Error 2

Plz help me.I am trying to build a cross build toolchain from the past 2 weeks, but not yet succeeded.

You can try ugrading to a higher glibc, or downgrading to a lower binutils. It helped for this guy: http://www.cygwin.com/ml//binutils/2.../msg00205.html

Also you might try doing:

My configuration command was:

To configure:
BUILD_CC="gcc" CC="${LFS_TARGET}-gcc" \
AR="${LFS_TARGET}-ar" RANLIB="${LFS_TARGET}-ranlib" \
../glibc-2.3.6/configure --prefix=/tools \
--host=${LFS_TARGET} --build=${LFS_HOST} \
--disable-profile --enable-add-ons=linuxthreads \
--with-tls --enable-kernel=2.6.15.1 --with-__thread \
--with-binutils=/cross-tools/bin --with-headers=/tools/include \
--cache-file=config.cache


To compile :
make

But still, I got the error...which version of binutils and glibc will work ?
Regarding the software tools that I have used, I have already mentioned earlier.

I really don't know the specifics of what version to get of either.
[GUESS]
I figure since only the development release of CLFS is available.
Your going to have to ask people on the CLFS project or on projects like GCC, Glibc, or Binutils.
You might need to exeriment yourself with versions.
[/GUESS]