The latter is the proper macro defined by Windows headers.
Fixes compilation under at least clang-cl which mandates function
declarations.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Fixes the following warning:
json_pointer.c:230:7: warning: implicit declaration of function
'vasprintf' is invalid in C99 [-Wimplicit-function-declaration]
rc = vasprintf(&path_copy, path_fmt, args);
Rosen Penev