Hi,
I am building GCC cross compiler for x86_64-elf
for that a have followed steps,


1. mkdir build-gmp build-mpfr

2. cd build-gmp

3. ../gmp-4.2/configure --prefix=/usr/local

4. make all install

5. make check

6.cd ../build-mpfr

7. ../mpfr-2.3.2/configure --prefix=/usr/local/

8. make all install

9. export LD_LIBRARY_PATH= /usr/local/lib

----------------------------------------------------------------------

10. export PREFIX=/usr/cross

11. export TARGET=x86_64-elf

12. cd /usr/src

13. mkdir build-binutils build-gcc

14. cd ../build-binutils

15. ../binutils-2.18/configure --target=$TARGET --prefix=$PREFIX --disable-nls

16. make all

17. make install

18. export PATH=$PATH:$PREFIX/bin

19. cd ../build-gcc
../gcc-4.3.2/configure --target=$TARGET --prefix=$PREFIX --disable-nls
--enable-languages=c,c++ --without-headers --with-gmp=/usr/local --with-mpfr=/usr/local

20. make all-gcc install-gcc


------Porting new library------

21. cd build-newlib/

22. ../newlib-1.17.0/configure --prefix=$PREFIX --target=$TARGET

23. make all install


-------------Rebuild GCC with headers......
using the --with-headers option to tell GCC where to find the headers of new C library.

24. ../gcc-4.3.2/configure --target=$TARGET --prefix=$PREFIX --disable-nls
--enable-languages=c,c++ --with-headers=/usr/cross/x86_64-elf/include --with-gmp=
/usr/local --with-mpfr=/usr/local

25. make all-gcc

26. make install-gcc


It is successfuly installed. But when i am compiling simple helloworld program it is giving error as

[root@vm-centos12 build-gcc]#x86_64-elf-gcc hello.c
/usr/cross/lib/gcc/x86_64-elf/4.3.2/../../../../x86_64-elf/bin/ld: crt0.o: No such file: No such file or directory
collect2: ld returned 1 exit status

I have searched for crt0.o file but this file is not present in gcc installed folder.

Please tell me where is the problem and steps that i followed are correct or not.

I am very much thankful to you.

Regards
Mandar.