Hi Francis.
If you're still keen to build Poco for Cygwin yourself, then it's
probably worth looking at the patches and compiler settings that I use,
as you may want to make use of them. Download the source, either using
Cygwin's setup.exe or directly from a mirror [1], and unpack. The
'poco.cygport' file is used for building; it has bash-like syntax. There
should be four patch files, each with the '.patch' extension.
The most important thing is to build using the '-frepo' compiler flag
when building Poco. This fixes a truly horrible crash when Poco's wide
character strings are passed across a DLL boundary. This works at the
expense of slowing the build somewhat. I wrote this up on a Poco GitHub
ticket [2].
Cygwin's Poco is built unbundled, i.e. it uses the system zlib, pcre,
etc. There are a couple of patches to support this. There is also a
patch to fix 'testDequeue', as this test tries to compare two internal
clocks of different accuracy, which fails randomly on Cygwin. The final
patch gets Data/ODBC building with the iODBC library.
There are some notes towards the end of the 'poco.cygport' file about
running the testsuite, and you might find these useful.
Hope this helps.
Dave.
[1] -
https://www.mirrorservice.org/sites/sourceware.org/pub/cygwin/x86/release/poco/poco-1.6.1-1-src.tar.xz
[2] - https://github.com/pocoproject/poco/issues/723#issuecomment-93853102
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