Some folk tried to create a pacifist version of the GPL[1].
Others are using the RMPL (RobotGroup-Multiplo-Pacifist-License)[2] - basically a MIT license, but with a restriction that bans military projects.
[1] http://arstechnica.com/uncategorized/2006/08/7511/
[2] http://multiplo.com.ar/soft/Mbq/Minibloq.Lic.v1.0.en.pdf
I generally agree with this, which is why I find the idea of a "developer's code" somewhat ridiculous.
Some folk tried to create a pacifist version of the GPL[1].
Others are using the RMPL (RobotGroup-Multiplo-Pacifist-License)[2] - basically a MIT license, but with a restriction that bans military projects.
[1] http://arstechnica.com/uncategorized/2006/08/7511/
[2] http://multiplo.com.ar/soft/Mbq/Minibloq.Lic.v1.0.en.pdf