Help compiling gcc 3.3

[Deskin Miller]

Hello,
     I have recently downloaded gcc 3.3 and tried to build a cross compiler. 
  However, at certain points, the make process has errors, which I have 
traced back to the abscence of some header files.  In the file 
<gcc-source>/gcc/gthr-posix.h, there are includes for <unistd.h> and 
<pthread.h>, neither of which are in the standard include path.  I found 
these headers elsewhere in the source; are these the correct files?  If not, 
where can I obtain these files?  Any help would be appreciated.  FYI, I am 
running Red Hat Linux 9, gcc 3.2.2, glibc 2.3.2, on an Intel 686 
architecture.  I am trying to build a cross-compiler for i386 architecture.  
Thanks!

Deskin Miller

_________________________________________________________________
MSN 8 with e-mail virus protection service: 2 months FREE*  
http://join.msn.com/?page=features/virus