Merge branch 'rj/sparse'

* rj/sparse: sparse: Fix mingw_main() argument number/type errors compat/mingw.c: Fix some sparse warnings compat/win32mmap.c: Fix some sparse warnings compat/poll/poll.c: Fix a sparse warning compat/win32/pthread.c: Fix a sparse warning compat/unsetenv.c: Fix a sparse warning compat/nedmalloc: Fix compiler warnings on linux compat/nedmalloc: Fix some sparse warnings compat/fnmatch/fnmatch.c: Fix a sparse error compat/regex/regexec.c: Fix some sparse warnings