Could I use Boost in program under GPL? Regards.
Yes. This answer is iroinically in the license FAQ describing the difference between the boost license and the GPL...
The Boost license permits the creation of derivative works for commercial or non-commercial use with no legal requirement to release your source code. Other differences include Boost not requiring reproduction of copyright messages for object code redistribution, and the fact that the Boost license is not "viral": if you distribute your own code along with some Boost code, the Boost license applies only to the Boost code (and modified versions thereof); you are free to license your own code under any terms you like.
Jeff
Is there an issue that the GPL code would 'virally' infect the instance of the boost code in the combined source such that the boost code being redistributed would need to have the same (ie additional) restrictions as the GPL. Someone is free to also get Boost code directly from Boost and not have these restrictions, but does the Boost code allow a user to place further restrictions on the derived work? Paul (not a lawyer, and always confused by licenses)