[issue41444] CPython 3.8.5 fails to build on Windows with -E option

Vladislav Mikhalin added the comment: The documentation states: -E Don't fetch or build external libraries. Extension modules that depend on external libraries will not attempt to build if this flag is present; -e is also accepted to explicitly enable fetching and

[issue41444] CPython 3.8.5 fails to build on Windows with -E option

Steve Dower added the comment: Yes, if you use -E then you need to provide the dependencies in some other way. The option is there to suppress network access at build time, not to build without those modules. -- ___ Python tracker

[issue41444] CPython 3.8.5 fails to build on Windows with -E option

Change by Karthikeyan Singaravelan : -- components: +Windows nosy: +paul.moore, steve.dower, tim.golden, zach.ware ___ Python tracker ___

[issue41444] CPython 3.8.5 fails to build on Windows with -E option

New submission from Vladislav Mikhalin : These errors are generated on a clean build: C:\cpython-3.8.5\Modules\_ctypes\_ctypes.c(107,10): fatal error C1083: Cannot open include file: 'ffi.h': No such file or directory [C:\cpython-3.8.5\PCbuild\_ctypes.vcxproj]