Fix BUILD FAILED (OS X 11.0.1 bigsur using python-build 20180424)

➜ brew install zlib openssl readline

CFLAGS=“-I$(brew –prefix openssl)/include -I$(brew –prefix readline)/include -I$(xcrun –show-sdk-path)/usr/include”

LDFLAGS=“-L$(brew –prefix openssl)/lib -L$(brew –prefix readline)/lib -L$(brew –prefix zlib)/lib”

Warning: zlib 1.2.11 is already installed and up-to-date
To reinstall 1.2.11, run brew reinstall zlib

Warning: openssl@1.1 1.1.1g is already installed and up-to-date
To reinstall 1.1.1g, run brew reinstall openssl@1.1

Warning: readline 8.0.4 is already installed and up-to-date
To reinstall 8.0.4, run brew reinstall readline