I've recently started using x86_64 Linux Mint 17, and decided to try building some of my software (games and little things) on there. I quickly got my x86_64 Linux builds working. I then decided (WHY) to try to figure out how to build for other OSes from here, with the thought of only having to build on one machine in the back of my mind.

My engine currently builds for Windows (x86 and x86_64), Linux (x86 and x86_64), OS X (x86_64), and Android (arm, armv7a, x86). Until today, I had a 64-bit Windows install, a 32-bit Linux install, a 64-bit Linux install, and a 64-bit OS X install used for building. I use gcc for Linux, mingw for Windows, clang for OS X, and gcc (via the NDK) for Android.
So naturally, being able to build all from one place would be AWESOME. I had zero experience with building for different platforms or architectures (excepting Android, which is done through the NDK and so I didn't really have to do anything there) before today.

I have so far managed:
gcc compiles x86_64 and x86 Linux binaries
gcc-mingw-w64 compiles x86_64 and x86 Windows binaries

I am now trying to figure out if there is any way to compile OS X binaries on Linux. I was hoping to discover some sort of gcc-apple-darwin or something along those lines. Is there anything like this that I've just missed?

? Ask Google .. mac os x cross compiler for linux ..
https://www.google.com/webhp?hl=all&...iler+for+linux

The first hit http://wiki.lazarus.freepascal.org/C...g_OSX_on_Linux

Well, of cours I'd Googled it before I came here! The link you posted appears to be for pascal (I may have forgotten to specify what language I'm working in, but it's c++), and it doesn't support recent/x86_64 OS X it seems.

I did however discover this: https://github.com/tpoechtrager/osxcross
You download that project, package an OS X SDK (on OS X), bring it over to Linux, and run a script that the project comes with. It builds a full compiler setup for you that works in Linux. It is amazing, and its creator is my hero.
It took hours of playing around with build options (Mainly boost, holy crap it did not want to build with this compiler. I ended up having to dig deep into the .jam files. Most of my libraries built fine without issue), but I was able to build an OS X binary, and it ran on my OS X machine! Woo!