[MacPorts] #71946: icon @9.5.1 is not using the right compiler nor flags

[MacPorts]

#71946: icon @9.5.1 is not using the right compiler nor flags
-------------------------+---------------------------------
  Reporter:  ryandesign  |      Owner:  michael.grunewald@…
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  icon        |
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Comment (by Dave-Allured):

 CC: @kwolcott

 icon uses an unusual self-configure stage with manually customized setup
 files.  It is actually a clever system that is adapted for many platforms.
 However, it blocks standard environment variables and uses its own
 versions, preventing the kinds of build flexibility used by MacPorts and
 other packagers.  This is where the unexpected compiler and libraries are
 coming from.

 The controlled variables for Mac are found in the source, in
 `config/macintosh/Makedefs`:
 {{{
 #  CC       C compiler
 #  CFLAGS   flags for building C files
 #  CFDYN    additional flags for dynamic functions
 #  RLINK    flags for linking run-time system
 #  RLIBS    libraries to link with run-time system
 #  TLIBS    libraries to link for POSIX threads
 #  XLIBS    libraries to link for graphics
 #  SFLAGS   flags for stripping iconx
 }}}
 I think overriding these settings, and admitting dynamic MacPorts
 variables, should be fairly easy.  I am thinking about allowing MacPorts
 environment variables to flow directly into the project make commands.

 Is there a simple way to create an EMPTY file named "Makedefs", in the
 top-level source directory?  Can this be done directly in the Portfile,
 WITHOUT using a patch file?  This would effectively bypass the project's
 custom setup mechanism.  Something like this:
 {{{
 echo "" > ${top_source_dir}/Makedefs
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/71946#comment:2>
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