a quick search for `HAVE_ISNAN` on sqlite's github-mirror shows 3 occurences in source-code -- that don't do anything except define/undef itself. https://github.com/sqlite/sqlite/search?q=have_isnan
a quick search for `HAVE_ISNAN` on sqlite's github-mirror shows 3 occurences in source-code -- that don't do anything except define/undef itself. https://github.com/sqlite/sqlite/search?q=have_isnan