ruby.git/tool/m4/ruby_prog_makedirs.m4, branch v4.0.3

ruby.git/tool/m4/ruby_prog_makedirs.m4, branch v4.0.3 The Ruby Programming Language Fallback `mkdir_p` to `as_mkdir_p` 2022-07-07T06:06:10+00:00 Nobuyoshi Nakada nobu@ruby-lang.org 2022-07-07T04:20:10+00:00 67e54ce4081abaa16774b93ccd33ccbd1d6c6531 Assume `mkdir -p` to be race-free on recent systems. And we do not provide install-sh anyway.

Assume `mkdir -p` to be race-free on recent systems.
And we do not provide install-sh anyway.