[MacPorts] #50953: gambit-c @4.7.6 Change compiler and add desirable ./configure option

[MacPorts]

#50953: gambit-c @4.7.6 Change compiler and add desirable ./configure option
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  Reporter:  macports@…   |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.4
Resolution:               |   Keywords:  haspatch
      Port:  gambit-c     |
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Comment (by macports@…):

 Thanks Ryan for your comments.  Indeed, I did not know the rationale
 behind the choice of default C compiler in macports.

 I have tested the gcc5 compiler (macports-gcc-5) by compiling the gambit
 package itself, and by then using that gambit and the gcc5 compiler to
 compile some little scheme programs, and it seems to work well.  I feel
 pretty strongly that the benefits of using this compiler with the
 "--enable-single-host" configuration option are worth pursuing.

 Perhaps we could compromise by: (1) switching the configure.compiler
 option to specify "macports-gcc-5", and (2) adding that compiler as a
 dependent?  This way I assume that the compatible version of libgcc_s will
 exist on the user's system.  Additionally, a “notes” section could be
 added to the Portfile explaining that an atypical compiler is recommended
 for this package.

 I have made these changes, and uploaded the new .diff file for your
 perusal.


 With regard to your comments regarding C++…

 From upstream:
 http://gambitscheme.org/wiki/index.php/Configure_script_options :

 “The option --enable-cplusplus should be used when applications developed
 with the Gambit-C compiler are to be linked with code or libraries written
 in C++. This will compile all of the Gambit-C source code with a C++
 compiler instead of a C compiler (this is possible because the code
 generated by the Gambit-C compiler conforms both to C and C++).”

 I have wrapped this option into a new variation (called: “cpp”).

-- 
Ticket URL: <https://trac.macports.org/ticket/50953#comment:2>
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