[MacPorts] #59229: m4 1.4.18_2.darwin_19.x86_64: build errors in ftello.c on MacOS 10.15 Catalina

[MacPorts]

#59229: m4 1.4.18_2.darwin_19.x86_64: build errors in ftello.c on MacOS 10.15
Catalina
-----------------------+--------------------
 Reporter:  dfaulkner  |      Owner:  (none)
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.6.1
 Keywords:             |       Port:  m4
-----------------------+--------------------
 Fresh install of MacPorts on MacOS 10.15 (Catalina) beta (19A573a).

 Attempting to build m4 as a dependency of other things (nmap), but got an
 error during the build. Attempted to rebuild m4 with port install m4, but
 got the same error. I'm attaching the full main.log, but here are the
 relevant lines:

 {{{
 :info:build ftello.c:53:12: error: no member named '_flag' in 'struct
 __sFILE'; did you mean '_flags'?
 :info:build   if (fp_->_flag & _IOWRT)
 :info:build            ^~~~~
 :info:build            _flags
 :info:build
 /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_stdio.h:130:8:
 note: '_flags' declared here
 :info:build         short   _flags;         /* flags, below; this FILE is
 free if 0 */
 :info:build                 ^
 :info:build ftello.c:53:20: error: use of undeclared identifier '_IOWRT'
 :info:build   if (fp_->_flag & _IOWRT)
 :info:build                    ^
 :info:build ftello.c:64:21: error: no member named '_flag' in 'struct
 __sFILE'; did you mean '_flags'?
 :info:build           if ((fp_->_flag & _IONBF) == 0 && fp_->_base !=
 NULL)
 :info:build                     ^~~~~
 :info:build                     _flags
 :info:build
 /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/_stdio.h:130:8:
 note: '_flags' declared here
 :info:build         short   _flags;         /* flags, below; this FILE is
 free if 0 */
 :info:build                 ^
 :info:build ftello.c:64:50: error: no member named '_base' in 'struct
 __sFILE'
 :info:build           if ((fp_->_flag & _IONBF) == 0 && fp_->_base !=
 NULL)
 :info:build                                             ~~~  ^
 :info:build ftello.c:65:25: error: no member named '_ptr' in 'struct
 __sFILE'
 :info:build             pos += fp_->_ptr - fp_->_base;
 :info:build                    ~~~  ^
 :info:build ftello.c:65:37: error: no member named '_base' in 'struct
 __sFILE'
 :info:build             pos += fp_->_ptr - fp_->_base;
 :info:build                                ~~~  ^
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/59229>
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