[Unison-hackers] Compiling under Mac OS X

[Jerome Vouillon]

> Compiling the GUI on Mac OS required small patches to not attempt 
> compiling a backwards compatible binary for 10.4 as this would fail::
> 
>    "MINOSXVERSION=10.5" in src/Makefile.OCaml
>    "SDKROOT = /Developer/SDKs/MacOSX10.5.sdk"
>    3x in src/uimacnew/uimacnew.xcodeproj/project.pbxproj
>    (only one is necessary, see recent emails on the list)

We should really fix this issue.  I'm wondering what the best changes
are so that:
- Alan can easily build binaries compatible with Mac OS X 10.4,
- the GUI can be compiled out of the box by everybody else.

-- Jerome