I'm developing a small closed source library in C++ for a small company using gcc. For the numerics part I need 128bit floating point arithmetics. This leads gcc to pull in libquadmath. As far as I know libquadmath is LGPL, which means that it should be distributed as source code along with my binary package. This leads to the following questions:
- Where do I get the sources from libquadmath? It seems that it is developed in the gcc project, which I would not consider to be a reasonable source package for this library.
- I'm using the library that is provided by the MinGW-w64 compiler of my linux distribution. How do I ensure to get the right sources?
- Are there alternatives that are easier to handle?