Need help with Port - unalz

[RobK88]

I need some help with fixing an old and abandoned port -- unalz.

It is broken in Macports. I have fixed the port and it will build on most systems just fine. One big step forward.

But on older Mac systems, I get the dreaded unalz is using libstdc++ (this installation is configured to use libc++).

I have patched the Makefile accordingly so the CFLAGS, CXXFLAGS and LDFLAGS set by Macports are honoured and appended to the flags in the Makefile.

I can tell that the "-stdlib=libc++" command line option is being passed to the compiler. But it looks like the default compiler on old Macs (e.g. g++ 4.2 on Lion) does not understand the -stdlib=libc++ command line option. e.g. cc1plus: error: unrecognized command line option "-stdlib=libc++"

Of course, I can get around this by specifying configure.compiler=macports-clang-9.0 when installing or upgrading this port using macports.

Attached is the patched Makefile and the draft portfile. (I know I need to fix the formatting etc in the draft portfile).

Any help would be greatly appreciated. Is there a way to get the old Apple compilers to understand the "-stdlib=libc++" command line option? Maybe I need to specify the compiler in the portfile. e.g. clang-9.0 or greater. How would I do that?

P.S. As recently as 2015, the Debian Project has fixed a number of bugs (including buffer overflow bugs) in unalz. I will need to add the Debian patches to this portfile. But I want to address the compiler and stdc++ issue first. See ​https://sources.debian.org/patches/unalz/0.65-8/ and ​https://packages.debian.org/source/stable/unalz

[RobK88]

Portfile

[RobK88]

Makefile Patched by Macports

[RobK88]

Makefile Patch