Move logic to decide if an MPM is supported, and whether the MPM is threaded, down to the MPM itself. (server/mpm/FOO/config.m4, which runs before the actual MPM selection) server/mpm/config.m4 makes some general platform checks that can be used for MPM decisions, and contains some functions related to MPMs. XXX The check here for whether APR_POLLSET_THREADSAFE is available is a rough approximation and needs to be replaced by a run-time check. Replace the limited per-platform hard-coded MPM selection and the current defaulting to event (whether or not it works) with a selection based on which MPMs work on the platform, as reported by the MPMs themselves. (config2.m4, which runs after the MPMs record whether they are supported) Order of preference: WinNT (mingw32 only) then Event then Worker then Prefork

fix eol-style

Bring in basic support for building the winnt MPM under mingw32, using the autoconf build system. Currently this will get you to the point of linking errors on gen_test_char. configure.in: Default to winnt MPM on mingw32 hosts. configure.in: Add AP_DECLARE_EXPORT for mingw32 hsots. os/config.m4: Use win32 dir under mingw32. os/win32/Makefile.in: Add in a new makefile to generate libos on win32. server/mpm/config.m4: Add winnt MPM to the help string. server/mpm/config.m4: winnt MPM is a threaded MPM. server/mpm/winnt/child.c: SO_UPDATE_ACCEPT_CONTEXT is defined under a different header in mingw32. server/mpm/winnt/{Makefile.in,config.m4}: Base build for winnt MPM. os/win32,server/mpm/winnt: Update svn:ignore for .deps/.libs