[PATCH] Merge glibc ieee128 ldbl redirect support into cdefs.h

While trying to build gdb with ldbl == ieee128 on ppc64le, we found out gnulib's copy of cdefs.h needs to be synchronized with upstream glibc. The only notable divergence is to ensure __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI is always defined as this macro is fairly recent. ---8<--- * lib/cdefs.h [__

execute, spawn-pipe: Fix memory leak on native Windows

The function prepare_spawn in windows-spawn.c and os2-spawn.c was a long-standing memory leak. The first patch fixes the memory leak and also the dependency on the 'xalloc' module. Then, the second patch relicenses the module 'windows-spawn' to LGPLv2+. I am the sole contributor to lib/w32spawn.h

Re: Relicense findprog-in under LGPLv2+

Paul Smith wrote: > > Would you approve this license change for this contribution? > > Yes, that's fine. Thank you. Done through the two attached patches. 2020-12-10 Bruno Haible findprog-in: Relicense under LGPLv2+. Paul Smith's approval is in