I cross-compile an entire Linux distribution (even if you're compiling on Linux/x86_64 FOR Linux/x86_64, it's still going to get cross-compiled since it's a dif

I cross-compile an entire Linux distribution (even if you're compiling on Linux/x86_64 FOR Linux/x86_64, it's still going to get cross-compiled since it's a different platform). This is around 300 external/upstream packages and 100 local packages. The vast majority of software that uses GNU autoconf has little to no problems. Some software that uses CMake has some small problems. Building the cross-compiling toolchain is relatively easy, compared to dealing with the problems in software I ran into a bug in bash [0], for example, that you would really only hit if you were cross-compiling it (there are other ways, because it wasn't related to being cross-compiled just features that were disabled automatically when cross-compiling). It took a while to convince people that this bug existed because it wasn't obvious that it was caused by being cross-compiled. The real problems come from "modern" package managers as well as scripting languages in general. Scripting languages and their extension mechanism are, in general, absolutely ignorant of cross-compiling and the idea that you might be building an extension to the language for a different platform than the running interpreter is completely foreign to most. Ruby fails especially hard here -- it looks ONLY at the running interpreter to determine how to build the extension. Python is a bit better because, but still rigid in versions. Perl's cross-compilation story requires having access to a system to SSH into (though there are alternative autoconf-based build systems that make this sane -- I don't know if they work for extensions, I just abandoned the idea of including Perl based on how poor their build system was). Tcl was the best, since it's extension system (TEA) is autoconf-based. LuaJIT can't be cross-compiled from a 32-bit system for a 64-bit system [1] since it, at build-time, tries to do some stuff and fails at it. [0] https://lists.gnu.org/archive/html/bug-bash/2015-06/msg00042.html https://lists.gnu.org/archive/html/bug-bash/2015-06/msg00042... [1] http://luajit.org/install.html#cross http://luajit.org/install.html#cross