"License Must Not Restrict
Other Software"
As per the OSI:
"The license must not place restrictions on other software that is distributed along with the licensed software. For example, the license must not insist that all other programs distributed on the same medium must be open-source software.
Rationale
Distributors of open-source software have the right to make their own choices about their own software. Yes, the GPL v2 and v3 are conformant with this requirement. Software linked with GPLed libraries only inherits the GPL if it forms a single work, not any software with which they are merely distributed."
http://www.opensource.org/osd.html
"The license must not place restrictions on other software that is distributed along with the licensed software. For example, the license must not insist that all other programs distributed on the same medium must be open-source software.
Rationale
Distributors of open-source software have the right to make their own choices about their own software. Yes, the GPL v2 and v3 are conformant with this requirement. Software linked with GPLed libraries only inherits the GPL if it forms a single work, not any software with which they are merely distributed."
http://www.opensource.org/osd.html