I wanted to note that the mingw builds work fine on all versions of windows, including the cases where the visual studio version does not work:
1. no service
pack 3 requirement
2. wine linux
(possibly freebsd and macosx)
3. parallels on macosx old windows versions.
This makes it very valuable to developers to test builds on windows if they do not have windows. This has helped me greatly in plugin development in the past few months.
Shall we post this link somewhere on the download page for people who cannot install service
pack 3, and for those who prefer a free toolchain?
opencpnplugins - Browse /opencpn_mingw_experimental at SourceForge.net