[MacPorts] #50342: doxygen @1.8.10_2 does not build on PPC Tiger, Mac OS X 10.4.11, because of Python code error?

[MacPorts]

#50342: doxygen @1.8.10_2 does not build on PPC Tiger, Mac OS X 10.4.11, because of
Python code error?
------------------------------+--------------------------------
  Reporter:  Peter_Dyballa@…  |      Owner:  macports-tickets@…
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.3.4
Resolution:                   |   Keywords:
      Port:  doxygen          |
------------------------------+--------------------------------

Comment (by cal@…):

 We need a unified diff of a change in the Portfile that fixes this. Since
 the variable is `PYTHON_EXECUTABLE`, you could probably do something along
 the lines of

 {{{
 configure.args-append -DPYTHON_EXECUTABLE=${prefix}/bin/python2.7
 }}}

 However, python 2.7 is not in the transitive dependency tree of cmake on
 my machine:
 {{{
 $ port rdeps --index cmake
 The following ports are dependencies of cmake @3.4.3_0:
   curl
     lbzip2
     pkgconfig
       libiconv
         gperf
     zlib
       xz
         gettext
           expat
           ncurses
     openssl
     curl-ca-bundle
       perl5
         perl5.22
           gdbm
   bzip2
   libarchive
     libxml2
     lzo2
 }}}

 I'd like to keep it that way for all platforms where `/usr/bin/python` is
 sufficient. So you'll have to do this conditionally in a block that checks
 the version number:

 {{{
 platform darwin {
   if {${os.major} <= 9} {
     configure.args-append ...
     depends_build-append  port:python27
   }
 }
 }}}

 where the version number still needs to be determined.

-- 
Ticket URL: <https://trac.macports.org/ticket/50342#comment:9>
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