Build with --disable-ld-version-script when building on older mingw to use regexx for exports
Build with --with-sysroot option to prevent libtool barfing
Build linphone for windows
Revert to mingw-w64 v2.0.8 as linphone at least cant build on it
Build poppler using its own strcat_s on windows with mingw 2.0.8
Change regex lib as 2.5.1 does not build on old mingw [2.0.8]
Remove srtp replace it with libsrtp
Add filter for cygwin32
Post build waf file