Parallel build failure in rate/ (probably rate-lav/, pph/ too)

[GitHub issues - opened]

alsa-project/alsa-plugins issue #44 was opened from thesamesam:

Originally reported downstream in [Gentoo](https://bugs.gentoo.org/835920) by a user.

It looks like in `rate/Makefile.am` (and I think ditto for `rate-lav/Makefile.am`, `pph/Makefile.am`), with high parallelism (`make -jN install`, for large N), `$(DESTDIR)@ALSA_PLUGIN_DIR@` may not have been created yet. All of these dirs override `install-exec-hook`.

For other subdirs, like `jack/Makefile.am`, there's no problem, because the implementation of `install-exec-hook` for those is set by `install-hooks.am` which handles `mkdir -p` before symlinking/installing.

Issue URL     : https://github.com/alsa-project/alsa-plugins/issues/44
Repository URL: https://github.com/alsa-project/alsa-plugins