curl @8.0.1_0+ares+darwinssl+http2+openldap+rtmp+sftp_scp: WimplicitFunctionDeclaration: getpass_r memrchr CloseSocket closesocket

[ddissett (daniel dissett)]

configuring

curl @8.0.1_0+ares+darwinssl+http2+openldap+rtmp+sftp_scp

macOS

10.14.6 (darwin/18.7.0) arch i386

MacPorts

2.8.1

Xcode

11.3.1, CLT 10.3.0.0.1.1562985497 SDK: 10.14 MACOSX_DEPLOYMENT_TARGET: 10.14

produces the following ominous warning:

:warn:configure Configuration logfiles contain indications of -Wimplicit-function-declaration; check that features were not accidentally disabled:
:msg:configure   getpass_r: found in curl-8.0.1/config.log
:msg:configure   memrchr: found in curl-8.0.1/config.log
:msg:configure   CloseSocket: found in curl-8.0.1/config.log
:msg:configure   closesocket: found in curl-8.0.1/config.log

I believe all four implicit decls warnings are false alarms and the checks should fail with or without the implicit decls:

• The only references to getpass_r and memrchr I could find on my box were in MacPorts or code I'd cloned from GitHub.
• Google Search says [Cc]lose[Ss]ocket is how you close a socket in WinSock instead of close() like the rest of the world.