Is MACOSX_DEVELOPMENT_TARGET a thing?

[Joshua Root]

It doesn't appear anywhere on opensource.apple.com except in a comment
in old versions of Libm, which means it was never recognised by any
version of Apple's compiler or linker and never did anything to the
headers. Almost certainly a mistake.

- Josh

On 2015-1-8 09:51 , Lawrence Velázquez wrote:
> Note that I said "DEVELOPMENT" and not "DEPLOYMENT".
> 
> I came across it while reworking perl5.16's patches. I can't tell
> whether it's intentional or a mistake, and my extensive research (one
> Google search and one DuckDuckGo search) only turned up other references
> to Perl builds.
> 
> Has anyone heard of this before?
> 
> vq
> 
> 
> Index: hints/darwin.sh
> ===================================================================
> --- hints/darwin.sh.orig
> +++ hints/darwin.sh
> @@ -141,7 +141,6 @@ esac
>  
>  # Shared library extension is .dylib.
>  # Bundle extension is .bundle.
> -ld='cc';
>  so='dylib';
>  dlext='bundle';
>  usedl='define';
> @@ -182,7 +181,7 @@ case "$osvers" in
>  *) 
>     lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
>     case "$ld" in
> -       *MACOSX_DEVELOPMENT_TARGET*) ;;
> +       *MACOSX_DEPLOYMENT_TARGET*) ;;
>         *) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
>     esac
>     ;;