Fix circular dependencies specific to in-place build [Bug #18374]
Move the rubyspec running recipe after the rule for rubyspec C-API extension library, so that separate dummy recipe is not needed.
Add a dummy recipe for rubyspec.h before the rubyspec running recipe, so that the dependency of extensions do not fire the latter.
Fix circular dependencies specific to in-place build [Bug #18374]
Move the rubyspec running recipe after the rule for rubyspec
C-API extension library, so that separate dummy recipe is not
needed.
Add a dummy recipe for rubyspec.h before the rubyspec running
recipe, so that the dependency of extensions do not fire the
latter.