$ python3.9 -m sysconfig | grep CFLAGS CFLAGS = "-Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong --param=ssp-buffer-size=4 -DOPENSSL_NO_SSL3=1 -I/usr/include/uuid/ -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/build=/usr/src/debug/python39-3.9.9-1 -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-1 -ggdb -O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong --param=ssp-buffer-size=4 -DOPENSSL_NO_SSL3=1 -I/usr/include/uuid/ -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/build=/usr/src/debug/python39-3.9.9-1 -fdebug-prefix-map=/pub/devel/python/python39/python39-3.9.9-1.x86_64/src/Python-3.9.9=/usr/src/debug/python39-3.9.9-1"
These flags will end up in builds of user Python packages with extensions via sysconfig/distutils. This should be fixed by putting the necessary flags for the Python build into CFLAGS_NODIST instead -- see similar fix for Homebrew's packaging of python3 in https://github.com/Homebrew/homebrew-core/pull/68528 Reference: https://trac.sagemath.org/ticket/33078 -- Dr. Matthias Koeppe . . . . . . . . http://www.math.ucdavis.edu/~mkoeppe Professor of Mathematics -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple