plphp1.1 make fails

I followed the new instructions (patch, autoconf,
configure --with-php=/usr/lib/apache/libphp5.so, etc.)
and get this error when running 'make':

make[3]: Entering directory
`/usr/local/src/postgresql-8.0.2/src/pl/plphp'
patching file php.h
Hunk #1 FAILED at 291.
1 out of 1 hunk FAILED -- saving rejects to file
php.h.rej
make[3]: *** [php.h] Error 1
make[3]: *** Deleting file `php.h'
make[3]: Leaving directory
`/usr/local/src/postgresql-8.0.2/src/pl/plphp'
make[2]: *** [all] Error 2
make[2]: Leaving directory
`/usr/local/src/postgresql-8.0.2/src/pl'
make[1]: *** [all] Error 2
make[1]: Leaving directory
`/usr/local/src/postgresql-8.0.2/src'
make: *** [all] Error 2

Know what the problem is?

Thanks,
CSN

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