After pulling the error fixes, rm **/config.cache, and re-making, I got some funny results while rebuilding cygwin32 only. Some previously built object files were no longer recognized as such, and halted the build; even file showed them as generic "data". This persisted even after rm **/config.cache, plus those object files not showing as "Intel 80386 COFF object file", and redoing ./configure && make. Only after doing "make distclean", rm **/config.cache, ./configure && make, did the build complete normally. Any ideas what the issue might have been, and best practices for rebuilding cygwin after tool updates?
-- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in binary units and prefixes, physical quantities in SI.]