[MacPorts] #70017: Check config.log for -Wimplicit-int and -Wincompatible-function-pointer-types

[MacPorts]

#70017: Check config.log for -Wimplicit-int and -Wincompatible-function-pointer-
types
-------------------------+--------------------
 Reporter:  ryandesign   |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  base         |    Version:
 Keywords:               |       Port:
-------------------------+--------------------
 MacPorts base contains code that checks config.log files for instances of
 implicit function declarations because new clang versions default to
 `-Werror=implicit-function-declaration` and this can cause available
 features not to be found:

 https://github.com/macports/macports-
 base/blob/4dfabb9c0de9abfcbb4acf1ad68471b0a20983ab/src/port1.0/portconfigure.tcl#L1910-L1955

 Even newer clang versions default to `-Werror=implicit-int` and `-Werror
 =incompatible-function-pointer-types`. Shall MacPorts base be enhanced to
 check for and warn about these too? I just encountered a port (php74) that
 failed to build due to an incorrect configure decision resulting from
 implicit int.

-- 
Ticket URL: <https://trac.macports.org/ticket/70017>
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