Quoting Paolo Bonzini <bonz...@gnu.org>:
Maybe we can use this in AC_CHECK_DECLS instead of having a new separate macro. If there is a parenthesis in the name call the new version, if there is none, call the old one.
You shouldn't need to keep the old version around, it's supposed to be a drop-in replacement. The reason I used a new name was that I'm not sure if GCC project can wait till we have a suitable macro in autoconf. Even if you put it now into the autoconf codebase, GCC would presumably have to wait for some time after the next release to use it.
