[MacPorts] #72297: icu @76.1 fails to build with gcc on 10.15

[MacPorts]

#72297: icu @76.1 fails to build with gcc on 10.15
---------------------------+------------------------
  Reporter:  barracuda156  |      Owner:  mohd-akram
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.10.5
Resolution:                |   Keywords:  catalina
      Port:  icu           |
---------------------------+------------------------

Comment (by barracuda156):

 Replying to [comment:1 ryandesign]:
 > Don't use gcc or libstdc++ on 10.15. Use clang and libc++.

 It is useful for testing and development to have `libstdc++`-based system.

 Here is a provisional fix anyway: https://github.com/unicode-
 org/icu/pull/3465

-- 
Ticket URL: <https://trac.macports.org/ticket/72297#comment:2>
MacPorts <https://www.macports.org/>
Ports system for macOS