Compiling DMD/Phobos on OSX (vs linux)

[Nick Sabalausky]

On Sun, 11 Aug 2013 22:11:26 +0200
Jacob Carlborg <doob at me.com> wrote:

> On 2013-08-11 03:57, Nick Sabalausky wrote:
> > I'm familiar with building DMD/Phobos on linux32/64 (and I assume
> > freebsd is much the same, aside from having to install GNU make),
> > but I know OSX is different in that the 32/64-bits bins are
> > combined. I don't have access to a modern OSX machine ATM, but I
> > might have a little bit of time with one tomorrow (I'm pretty sure
> > it's either 10.6 or 10.7
> > - I know it's a Core i7 laptop FWIW).
> 
> Both of these should be fine and are modern enough for developing
> using DMD.
> 
> > So I wanted to ask, is there anything I should know about doing a
> > full build of DMD/Phobos on OSX? Is it just like doing a
> > 32-bit-only or 64-bit-only build on linux, but just without using
> > -m32/-m64? Or do I do one arch and then the other? Or does it
> > differ between the different components (dmd/druntime/phobos)? Etc.
> 
> If you run "make -f posix.mak" it will build only build for the
> default architecture, that is most likely 64bit. Only 64bit binaries
> of DMD are distributed. For Phobos a universal (fat) binary is
> distributed. Search for "lipo" in the Phobos makefile. lipo is the
> tool used to combine multiple architectures to a single binary. You
> can verify the result by running "file path/to/binary". It will tell
> which architectures are available in the binary. These tools work
> both with executables, dynamic and static libraries.
> 
> > And are there any special OSX-only prerequisites?
> 
> The developer tools, aka Xcode, available in App Store.
> 

Thanks, I was indeed able to compile DMD/phobos on the system (after a
loooong and surprisingly non-trivial download and install process for
xcode/gcc).

There did appear to be an issue with the tools repo, as I got errors
about "dustmite" being a directory instead of a file, which kinda
surprised me b/c I thought OSX was case-sensitive? (The tools repo
*does* have the dustmite sources in a subdirectory named "DustMite".)