How to add comma to a list?

[Ted Stern]

Hi all,

What is the proper way to insert commas into each word of a GNU Make
variable?

I want to change FOO something like this:

     FOO := a b c d e
     FOO := $(patsubst %,-Wl,-y,%_,$(FOO))

to get

     -Wl,-y,a_ -Wl,-y,b_ -Wl,-y,c_ -Wl,-y,d_ -Wl,-y,e_

Somehow I need to comment the comma so that it is not interpreted as a
MAKE function argument separator.  I don't see any reference to this
in the info pages.  I'm using 3.80.

Thanks, Ted
-- 
 Frango ut patefaciam -- I break so that I may reveal