Am trying to build mpich2-1.0.3 from the AllSource distribution while following the installer's guide. The operating system is Linux Fedora 3 standard. Used the following configure and make commands. Make fails with compile errors due to missing structure members. Can someone tell me what I am missing? Thanks very much. Best, Peter. [root@optiquest mpich2-1.0.3]# /opt/mpich2/mpich2-1.0.3/configure -prefix=/opt/mpich2/mpich2-install --enable-echo --enable-strict --enable-error-checking=all --enable-error-messages=all --enable-timing=all --enable-threads=multiple:global_mutex --enable-g=all --with-thread-package=pthreads 2>&1 | tee configure.log [root@optiquest mpich2-1.0.3]# make 2>&1 | tee make.log . . < snip from bottom of console > . sock_wait.i:674: error: structure has no member named `pollfds_updated' sock_wait.i: In function `MPIDU_Socki_handle_write': sock_wait.i:732: error: structure has no member named `pollfd_events' sock_wait.i:732: error: structure has no member named `pollfds_active' sock_wait.i:732: error: structure has no member named `pollfds_updated' sock_wait.i:759: error: structure has no member named `pollfd_events' sock_wait.i:759: error: structure has no member named `pollfds_active' sock_wait.i:759: error: structure has no member named `pollfds_updated' sock_wait.i: In function `MPIDU_Socki_handle_connect': sock_wait.i:814: error: structure has no member named `pollfd_events' sock_wait.i:814: error: structure has no member named `pollfds_active' sock_wait.i:814: error: structure has no member named `pollfds_updated' make[7]: *** [sock.o] Error 1 make[7]: Leaving directory `/opt/mpich2/mpich2-1.0.3/src/mpid/common/sock/poll' make[6]: *** [all-redirect] Error 1 make[6]: Leaving directory `/opt/mpich2/mpich2-1.0.3/src/mpid/common/sock' make[5]: *** [all-redirect] Error 2 make[5]: Leaving directory `/opt/mpich2/mpich2-1.0.3/src/mpid/ch3/channels/sock' make[4]: *** [all-redirect] Error 1 make[4]: Leaving directory `/opt/mpich2/mpich2-1.0.3/src/mpid/ch3/channels' make[3]: *** [all-redirect] Error 2 make[3]: Leaving directory `/opt/mpich2/mpich2-1.0.3/src/mpid/ch3' make[2]: *** [all-redirect] Error 1 make[2]: Leaving directory `/opt/mpich2/mpich2-1.0.3/src/mpid' make[1]: *** [all-redirect] Error 2 make[1]: Leaving directory `/opt/mpich2/mpich2-1.0.3/src' make: *** [all-redirect] Error 2 [root@optiquest mpich2-1.0.3]#