lib/54744: monetary.h has syntax error in C++ mode

[bruno%haible.de@localhost]

>Number:         54744
>Category:       lib
>Synopsis:       monetary.h has syntax error in C++ mode
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Dec 07 14:30:00 +0000 2019
>Originator:     Bruno Haible
>Release:        8.0
>Organization:
GNU
>Environment:
NetBSD ... 8.0 NetBSD 8.0 ...
>Description:
/usr/include/monetary.h causes a syntax error when included in C++ mode.
>How-To-Repeat:
$ echo '#include <monetary.h>' > foo.cc
$ g++ -D_NETBSD_SOURCE -c foo.cc
In file included from foo.cc:1:0:
/usr/include/monetary.h:60:19: error: expected '}' at end of input
>Fix:
Balance out the __BEGIN_DECLS and __END_DECLS in monetary.h.