libcxxrt C++ Runtime Now Available Under BSD License

May 23, 2011 The FreeBSD Foundation and the NetBSD Foundation announced today that they have acquired a non-exclusive copyright license to the libcxxrt C++ runtime software from PathScale, a leader in high performance Fortran, C, and C++ compiler products for AMD64, Intel64, and MIPS. This software is an implementation of the C++ Application Binary Interface originally developed for Itanium and now used for the x86 family by BSD operating systems. Libcxxrt will be available under the 2-clause BSD license.
This implementation is a full replacement for the GNU libsupc++ library for platforms that use the Itanium C++ ABI, including i386 and x86-64, and will replace portions of the C++ stack previously only available under the GPL. It provides implementations of the dynamic features of C++, including dynamic casting, exception handling, and thread-safe static initializers, and will continue the gradual replacement of GNU toolchain and runtime components, furthering the aim of a purely BSD-licensed system.

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