Simplest way to reverse the order of strings in a make variable

Question

Let\'s say you have a variable in a makefile fragment like the following:

MY_LIST=a b c d

How do I then reverse the order of that list? I need

Answer 1

You can also define search groups with ld:

ld -r foo.o -( a.a b.a c.a -)

Will iterate through a.a, b.a, and c.a until no new unresolved symbols can be satisfied by any object in the group.

If you're using gnu ld, you can also do:

ld -r -o foo.o --whole-archive bar.a

Which is slightly stronger, in that it will include every object from bar.a regardless of whether it satisfies an unresolved symbol from foo.o.