Impossible to compile with --mixed

[jackaudio]

Impossible to compile with --mixed

[kris7t]

I managed to build by adding the following lines to the if statement's body I quoted in the issue:

clientlib32bit.variant = 32
clientlib32bit.name = 'clientlib32'
clientlib32bit.target = 'lib32/jack'

The variant parameter appends 32 to the name of any object files, so that they don't get overwritten; the name change avoids linking the clients build by the build system with the 32-bit library; and the target puts the resulting shared library to a different directory, so it does not overwrite the 64-bit one. It sill installs to the right directory.

I don't know whether I should send a pull request with this, it seems very hackish (and trivial). I think the wscript should be fixed to output 32-bit binaries to build/lib32, although I don't know how to do that.