- # where $(somedir) is conditionally defined. However this is wrong
- # for two reasons:
- # 1. if the package is installed by a user who cannot write `.'
- # make install will fail,
- # 2. the above comment should most certainly read
- # $(mkdir_p) $(DESTDIR)$(somedir)
- # so it does not work when $(somedir) is undefined and
- # $(DESTDIR) is not.
- # To support the latter case, we have to write
- # test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
- # so the `.' trick is pointless.
- mkdir_p='mkdir -p --'
+ # where $(somedir) is conditionally defined.
+ # (`test -n '$(somedir)' && $(mkdir_p) $(somedir)' is a more
+ # expensive solution, as it forces Make to start a sub-shell.)
+ mkdir_p='mkdir -p -- .'