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Separated from PR #3 that also tries to fix tests and code, and may take more time to complete through all the questionable changes into production code (e.g. flushing or not upon reconnection attempts).
This subset of those changes focuses more strictly on passing builds without warnings, due to regressions allegedly due to upstream v3.1.10->v3.1.11 bump, so these fixes could be up-streamed separately:
rtu_usb
branch not as portable as they should be (printing of int types)setsockopt()
pointer to datainet_ntop()
/inet_pton()
absent on Windows (at least MINGW on Linux cross-build environments, MSYS2 does not seem to suffer this one) -configure
detection and fallback implementation code imported from NUTip.h
needsin.h
explicitly on some platformsEnhancements:
./configure --enable-Werror
in test builds, to fail the build upon any compiler warnings (not enabled by default), allowing to easily iterate on the code fixes