[MacPorts] #63371: base port: Adding extra configure options breaks readline build

[MacPorts]

#63371: base port: Adding extra configure options breaks readline build
-----------------------+--------------------
 Reporter:  snowflake  |      Owner:  (none)
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  base       |    Version:  2.7.99
 Keywords:             |       Port:
-----------------------+--------------------
 When building the ```port``` command, adding additional configure options
 breaks the compilation of readline.

 I modified ```standard_configure.sh``` to read:
 {{{
 env PATH=/usr/bin:/bin:/usr/sbin:/sbin CFLAGS="-pipe -Os" ./configure
 --enable-readline --with-curlprefix=/opt/local "$@"
 }}}

 Now ```make``` comes up with an error when building readline.o:
 {{{
 clang -std=gnu11 -c -DUSE_TCL_STUBS -DTCL_NO_DEPRECATED -pipe -Os -std=c99
 -Wextra -Wall -pedantic  -I/opt/local/include   -DHAVE_CONFIG_H
 -I/Users/davidevans/macports/sources/github.com/macports/macports-base/src
 -I/Users/davidevans/macports/sources/github.com/macports/macports-base/src
 -I. -I/Users/davidevans/macports/sources/github.com/macports/macports-
 base/vendor/vendor-destroot/opt/local/libexec/macports/include
 -I./../compat -fno-common readline.c -o readline.o
 readline.c:133:23: error: use of undeclared identifier
       'username_completion_function'; did you mean
       'rl_username_completion_function'?
   ...generator_func = USERNAME_COMPLETION_FUNCTION;
                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
                       rl_username_completion_function
 readline.c:54:39: note: expanded from macro 'USERNAME_COMPLETION_FUNCTION'
 #       define USERNAME_COMPLETION_FUNCTION
 username_completion_function
                                                 ^
 /opt/local/include/readline/readline.h:485:14: note:
       'rl_username_completion_function' declared here
 extern char *rl_username_completion_function PARAMS((const char *, int));
              ^
 1 error generated.
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/63371>
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