Build error with gcc

[Ilya Zakharevich <ilya@math.ohio-state.edu>]

In MPIM-Bonn: gp would not build without CC=cc.  Here are the messages:

In file included from /usr/local/GNU/lib/gcc-lib/sparc-sun-solaris2.5/2.7.2/include/time.h:90,
                 from /usr/include/sys/time.h:410,
                 from /usr/include/sys/select.h:17,
                 from /usr/local/GNU/lib/gcc-lib/sparc-sun-solaris2.5/2.7.2/include/sys/types.h:278,
                 from ../src/headers/pari.h:29,
                 from ../src/kernel/none/mp.c:23:
/usr/include/sys/siginfo.h:74: parse error before `pthread_attr_t'
/usr/include/sys/siginfo.h:74: warning: no semicolon at end of struct or union
/usr/include/sys/siginfo.h:76: parse error before `}'
In file included from ../src/headers/pari.h:70,
                 from ../src/kernel/none/mp.c:23:
../src/headers/parigen.h:22: warning: redefinition of `ulong'
/usr/local/GNU/lib/gcc-lib/sparc-sun-solaris2.5/2.7.2/include/sys/types.h:220: warning: `ulong' previously declared here

Is it a local misconfiguration (I think it is solaris2.8 here), or
something else?

Ilya