Paul Eggert wrote: > + If GCC 12+ and -flto is not being used (in which case -DUSING_LTO > + should also be used), simply use a pragma.
What does this comment mean? That the one who builds the package should set CPPFLAGS="-DUSING_LTO" if -flto is not being used? (Or if -flto _is_ being used?) Distros don't typically define this symbol. For instance, Fedora has a '_lto_cflags' variable in their spec files that defaults to "-flto=auto -ffat-lto-objects". Therefore I think it should be the configure script, not the user, who defines such a symbol like USING_LTO. Bruno
