Bump GPLv2+ to GPLv3+ for some files, clarify BSD 2-clause.
Everything else stays under GPLv3+.
New Linking Exception exempts resulting executables from LGPLv3 section 4.
Add CONTRIBUTORS file to keep track of licensing.
Remove 'Copyright Red Hat Inc' comments.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
API version numbers.
* external.cc (cygwin_internal): disable setting cxx_malloc on 64 bit.
Add CW_FIXED_ATEXIT case.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* include/sys/cygwin.h (cygwin_getinfo_types): Add CW_FIXED_ATEXIT.
* lib/atexit.c (atexit): Test running Cygwin version by checking
return value of cygwin_internal (CW_FIXED_ATEXIT).
* lib/atexit.c (atexit): New, statically linkable version of atexit.
* dcrt0.cc (cygwin_atexit): Add comment to mark this function as old
entry point. Indiscriminately check for DSO of function pointer for
all functions, if checking for DSO of return address fails on x86_64.
Change comment accordingly.