Multithreaded make with make -j

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Compile the sources with the option make -j#NUM with #NUM>=2
2.
3.

What is the expected output? What do you see instead?
Instead of a well compiled program
gen68k.c:8:25: fatal error: def68k-iibs.h: No such file or directory

What version of the product are you using? On what operating system?
on Arch Linux gngeo-0.8 from the AUR

Please provide any additional information below.
https://aur.archlinux.org/packages/gngeo/

Original issue reported on code.google.com by Florian....@gmail.com on 21 May 2013 at 3:15

[carstene1ns]

I did some work towards fixing this issue in my parallel_make branch. However, it does not work for cross compilations. I do not know what the better solution here is:

• Split the build process in two parts. Do a 'host' build of the needed generator(s), then cross compile the rest.
• Avoid the generator run. Maybe add the cpu core files to the repository and compile/run the generator if instructions change.

[pepone42]

If their is no other choice, I personally prefer to split the build process in two.