n5.1.7
all: Make header guard names consistent
atomics: Fix the win32 atomic_exchange function
avfilter: add chromakey_cuda filter
Merge commit '6bb99757b780144d9fa27cdce09d3621e1a0ed43'
additional math.h functions for djgpp
Merge remote-tracking branch 'qatar/master'
fix broken links to msdn documentation
compat/solaris/make_sunver.pl: Use /usr/bin/env perl instead of /usr/bin/perl
compat/windows/makedef: Allow building shared libs with MSVC under WSL
Merge commit 'f929ab0569ff31ed5a59b0b0adb7ce09df3fca39'
compat/os2threads: define INCL_DOSERRORS
compat/strtod: Add missing const qualifiers.
all: Add missing header guards
compat/w32dlfcn.h: Remove MAX_PATH limit and replace LoadLibraryExA with LoadLibraryExW
avformat/udp: support w32pthreads compat