Creating a global string constant node.

[Matt Davis]

Hello,
I need to create a global string constant node.  In the past, I have
always been able to add global variables, but I have always left them
uninitialized.  I know the trick is to build_decl() of VAR_DECL and, I
guess in this case the type char_node_type.  However, I want the
global decl initialized and referring to a string literal.  I know of
build_string_literal()  but that does not create a decl node that I am
aware of.  I am unsure as to how to set that literal to my VAR_DECL
instance, so that it is in the read-only section of the resulting
binary, and referred to by the identifier I pass to build_decl().  Is
there an example in the code my grep-foo has failed me for this
specific case?

Thanks much!

-Matt