GCC 4.7.2 build failure

[Bharath Ramesh]

I am trying to build gcc-4.7.2 using gcc-4.4.6 and I am experiencing a 
build failure. The issue is that when cloog is being configured during 
stage1 it is unable to find gmp.h. However, gmp.h exists in the location 
that has been passed to cloog's configure script.

I setup the gcc source directory by first running 
./contrib/download_prerequisites and then downloading cloog and untaring 
it similar to what was done in download_prerequisites script file.

My configure line is as follows:

$ ./configure --prefix=/opt/apps/gcc/4.7.2 
--enable-languages=c,c++,fortran --enable-bootstrap --enable-shared 
--enable-__cxa_atexit --enable-checking=rele+ase --with-arch_32=i686 
--with-bits=gmp --with-system-zlib --with-tune=generic

When I open host-x86_64-unknown-linux-gnu/cloog/config.log to the 
configure line is

  /opt/build/BUILD/gcc-4.7.2/cloog/configure --cache-file=./config.cache 
--with-system-zlib --prefix=/opt/apps/gcc/4.7.2 --enable-bootstrap 
--enable-shared --enable-__cxa_atexit --enable-checking=release 
--with-arch_32=i686 --with-system-zlib --with-tune=generic 
--enable-languages=c,c++,fortran,lto --program-transform-name=s,y,y, 
--disable-option-checking --build=x86_64-unknown-linux-gnu 
--host=x86_64-unknown-linux-gnu --target=x86_64-unknown-linux-gnu 
--srcdir=../.././cloog --disable-intermodule 
--enable-checking=release,types --disable-coverage 
--enable-languages=c,c++,lto --disable-shared 
--with-gmp-library=/opt/build/BUILD/gcc-4.7.2/host-x86_64-unknown-linux-gnu/gmp/.libs 
--with-gmp-include=/opt/build/BUILD/gcc-4.7.2/host-x86_64-unknown-linux-gnu/gmp 
--with-bits=gmp --with-ppl

It still fails with the following error

configure:12968: checking gmp.h usability
configure:12968: gcc -c -g -fkeep-inline-functions   conftest.c >&5
conftest.c:60:17: error: gmp.h: No such file or directory

$ ls /opt/build/BUILD/gcc-4.7.2/host-x86_64-unknown-linux-gnu/gmp/gmp.h
/opt/build/BUILD/gcc-4.7.2/host-x86_64-unknown-linux-gnu/gmp/gmp.h

Any help in resolving this failure is appreciated. I am not subscribed 
to the list so would appreciate it if I am copied in the response.

-- 
Bharath


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