[elpa] externals/setup updated (f15c902 -> 4a4b1c5)

[Stefan Monnier]

monnier pushed a change to branch externals/setup.

      from  f15c902   Allow xref to find setup-defines outside of setup.el
       new  bee533a   Add :if-host keyword
       new  4c73517   Improve :load-form shorthand
       new  028d3da   Add :if-require macro
       new  4a4b1c5   Merge :if-require into :require


Summary of changes:
 setup.el | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)