[MacPorts] #57493: esmf @7_1_0r +gcc8: build error: 'size_t' does not name a type

[MacPorts]

#57493: esmf @7_1_0r +gcc8: build error: 'size_t' does not name a type
--------------------------+----------------------
 Reporter:  Dave-Allured  |      Owner:  tenomoto
     Type:  defect        |     Status:  assigned
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.5.4
 Keywords:                |       Port:  esmf
--------------------------+----------------------
 port -v install esmf +gcc8 fails with multiple C++ errors like this.  I
 shortened several long sequences for readability.  See main.log for the
 full details:

 {{{
 :info:build /Users/dallured/macports/254/bin/g++-mp-8 -c [OPTIONS]
 [INCLUDES] [LONG_PATH]/ESMCI_CoordSys.C
 :info:build In file included from [LONG_PATH]/ESMC_Util.h:23,
 :info:build                  from [LONG_PATH]/ESMCI_Fraction.h:52,
 :info:build                  from [LONG_PATH]/ESMCI_Fraction.C:25:
 :info:build [LONG_PATH]/ESMC_Conf.h:34:9: error: 'size_t' does not name a
 type
 :info:build  typedef size_t ESMCI_FortranStrLenArg;
 :info:build          ^~~~~~
 :info:build [LONG_PATH]/ESMC_Conf.h:34:9:
         note: 'size_t' is defined in header '<cstddef>'; did you forget to
 '#include <cstddef>'?
 :info:build [LONG_PATH]/ESMC_Conf.h:1:1:
 :info:build +#include <cstddef>
 :info:build  #ifdef ESMC_RCS_HEADER
 }}}

 Starting from an empty Macports directory, port -v install esmf installs
 58 ports successfully, then ESMF fails as above.  The default ESMF variant
 seems to install fine for me, and does not get these errors.  Here is my
 configuration:

 {{{
 sw_vers:
 ProductName:    Mac OS X
 ProductVersion: 10.13.6
 BuildVersion:   17G65

 Xcode 10.0
 Build version 10A255
 }}}

 I am installing to a private user directory, not /opt/local. Root
 privileges are disabled.  I ran port selfupdate in advance, of course.

-- 
Ticket URL: <https://trac.macports.org/ticket/57493>
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