[MacPorts] #49227: gcc5 @5.2.0: fix gcj (was: fix gcj in gcc5)

[MacPorts]

#49227: gcc5 @5.2.0: fix gcj
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  Reporter:  howarth.at.macports@…  |      Owner:  mww@…
      Type:  defect                 |     Status:  new
  Priority:  Normal                 |  Milestone:
 Component:  ports                  |    Version:  2.3.4
Resolution:                         |   Keywords:  haspatch
      Port:  gcc5                   |
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Changes (by ryandesign@…):

 * cc: ryandesign@… (added)
 * keywords:   => haspatch
 * owner:  macports-tickets@… => mww@…


Old description:

> The attached Portfile.diff, gcj-libiconv-linkage.patch and boehm-gc-
> darwin15-hack.patch corrects the build of gcj so that it is functional.
> The changes include...
>
> 1) Pass -with-libiconv-prefix=${prefix} to configure so that the proper
> libiconv is used (as the Portfile has depends_lib port:libiconv.
>
> 2) Reduce alignment in boehm-gc to 2 with boehm-gc-darwin15-hack.patch in
> order to suppress breakage from the recompilation of the system
> libunwind.dylib against Apple Clang 7.0 in darwin15.
>
> 3) Apply gcj-libiconv-linkage.patch to provide the appropriate linkage on
> libiconv automatically for executables created with gcj.
>
> 4) In order to create ecj1 during the build, ecj-4.9.jar is added to
> distfiles and copied into the source directory as ecj.jar per upstream's
> build instructions for gcj.
>
> The functionality of the resulting gcj-mp-5 can be seen by compiling the
> testme.java source code....
>
> {{{
> public class testme {
>   public static void main(String args[]){
>     System.out.println("Hello");
>   }
> }
> }}}
>
> using the command "gcj-mp-5 --main=testme -O testme.java" which will
> produce a functional a.out executable.

New description:

 The attached Portfile.diff, gcj-libiconv-linkage.patch and boehm-gc-
 darwin15-hack.patch corrects the build of gcj so that it is functional.
 The changes include...

 1. Pass -with-libiconv-prefix=${prefix} to configure so that the proper
 libiconv is used (as the Portfile has depends_lib port:libiconv.
 2. Reduce alignment in boehm-gc to 2 with boehm-gc-darwin15-hack.patch in
 order to suppress breakage from the recompilation of the system
 libunwind.dylib against Apple Clang 7.0 in darwin15.
 3. Apply gcj-libiconv-linkage.patch to provide the appropriate linkage on
 libiconv automatically for executables created with gcj.
 4. In order to create ecj1 during the build, ecj-4.9.jar is added to
 distfiles and copied into the source directory as ecj.jar per upstream's
 build instructions for gcj.

 The functionality of the resulting gcj-mp-5 can be seen by compiling the
 testme.java source code....

 {{{
 public class testme {
   public static void main(String args[]){
     System.out.println("Hello");
   }
 }
 }}}

 using the command "gcj-mp-5 --main=testme -O testme.java" which will
 produce a functional a.out executable.

--

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Ticket URL: <https://trac.macports.org/ticket/49227#comment:3>
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