C++ porting : No such file or directory

[Sivaprasad.pv]

Hi all,

I have configure gcc-3-3 as below:
$SRC/gcc-3.3/configure --prefix=$RELDIR --target=$TARGET 
--enable-languages=c++  --with-gnu-as --with-gnu-ld --without-headers 
--with-newlib --host=i686-pc-linux-gnu --with-dwarf2  
--enable-sjlj-exceptions 

while building following errors are occurred:

gnu/gcc-3.3/libiberty/regex.c:53:25: sys/types.h: No such file or directory
gnu/gcc-3.3/libiberty/regex.c:151:24: string.h: No such file or directory
gnu/gcc-3.3/libiberty/regex.c:198:20: ctype.h: No such file or directory
make[1]: *** [regex.o] Error 1

I think it is problem with not including header files from 
/usr/include.I have included  /usr/include directory  in  
Makefile(generated after configuring gcc) then building proceed 
further.I think it is not a right way of building gcc. How can i 
configure gcc-3.3 such a way that ,By default compiler locate the 
required header file.please help me inorder to resolve this issue.


--P.V.Siva Prasad