[MacPorts] #6856: BUG: emulators/dosbox fails to build on Intel Mac

[MacPorts]

#6856: BUG: emulators/dosbox fails to build on Intel Mac
---------------------------+--------------------
  Reporter:  jake.hamby@…  |      Owner:  mww@…
      Type:  defect        |     Status:  closed
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  1.0
Resolution:  fixed         |   Keywords:
      Port:  dosbox        |
---------------------------+--------------------
Changes (by ryandesign@…):

 * port:   => dosbox


Old description:

> Since dosbox has some special support for x86 CPUs, it needs to be
> compiled with the "-mdynamic-no-pic" flag on Intel Macs or else some
> inline asm will fail to compile.  This should also give a
> (small)performance boost on PPC.
>
> In general, it is beneficial to add "-mdynamic-no-pic" when building
> performance-sensitive apps on Mac OS X (although you can't use it when
> building shared libraries), especially on x86, which is register-poor.
> Here's my Portfile patch for dosbox:
>

> --- Portfile.orig   2005-12-05 01:45:37.000000000 -0800
> +++ Portfile    2006-01-26 17:29:27.000000000 -0800
> @@ -23,7 +23,7 @@
>
>  configure.args --mandir=${prefix}/share/man --disable-sdltest \
>                 --disable-alsatest
> -configure.env  CPPFLAGS="-I${prefix}/include" LDFLAGS="-L${prefix}/lib"
> +configure.env  CPPFLAGS="-I${prefix}/include" CXXFLAGS="-O2 -mdynamic-
> no-pic" LDFLAGS="-L${prefix}/lib"
>
>  post-destroot {
>     xinstall -m 755 -d ${destroot}${prefix}/share/doc/${name}

New description:

 Since dosbox has some special support for x86 CPUs, it needs to be
 compiled with the "-mdynamic-no-pic" flag on Intel Macs or else some
 inline asm will fail to compile.  This should also give a
 (small)performance boost on PPC.

 In general, it is beneficial to add "-mdynamic-no-pic" when building
 performance-sensitive apps on Mac OS X (although you can't use it when
 building shared libraries), especially on x86, which is register-poor.
 Here's my Portfile patch for dosbox:

 {{{
 --- Portfile.orig   2005-12-05 01:45:37.000000000 -0800
 +++ Portfile    2006-01-26 17:29:27.000000000 -0800
 @@ -23,7 +23,7 @@

  configure.args --mandir=${prefix}/share/man --disable-sdltest \
                 --disable-alsatest
 -configure.env  CPPFLAGS="-I${prefix}/include" LDFLAGS="-L${prefix}/lib"
 +configure.env  CPPFLAGS="-I${prefix}/include" CXXFLAGS="-O2 -mdynamic-no-
 pic" LDFLAGS="-L${prefix}/lib"

  post-destroot {
     xinstall -m 755 -d ${destroot}${prefix}/share/doc/${name}
 }}}

--

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Ticket URL: <https://trac.macports.org/ticket/6856#comment:3>
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