v0.9.74
verbatim import of David Gausmann's websocket extension; tests do not yet pass, only enabled with --enable-experimental
Updates for MSVC builds
Removed redundant macro
Released GNU libmicrohttpd 0.9.74
fix #6693: get src/lib/ to build with clang
tighten formatting rules
websockets interface: added "experimental" warning
Guard stddef.h includes with '#ifdef HAVE_STDDEF_H'