tree d85d4267fa0e1962d032a316da2668a421aa60cb
parent e66fe75792a2fbe9f3ffe237c748008906ae7116
author Daniel Colascione <dancol@dancol.org> 1592786425 -0700
committer Brad King <brad.king@kitware.com> 1592830133 -0400

Makefile: Fix regression in .SILENT rule

Since commit d74e651b78 (Makefiles: Re-implement makefile target path
escaping and quoting, 2020-04-10, v3.18.0-rc1~334^2~1), `WriteMakeRule`
now correctly escapes `$` in make target paths as `$$`.  However, this
caused an existing call site to escape the `$(VERBOSE)` variable
reference in the `.SILENT` prefix, making it ineffective.  Sub-makefiles
are invoked with `MAKESILENT`, so this bug matters only for the `all`
target, which emits progress messages from toplevel.

Before:

    # Suppress display of executed commands.
    $$(VERBOSE).SILENT:

After:

    # Suppress display of executed commands.
    $(VERBOSE).SILENT: