Is there a wide class of projects or operating systems that recommends or suggests use of CC=c++ that I've missed? I'm trying to understand the origins of the CC=c++ notion. Learning that may help me understand the bigger picture.
For example, when a project is considering switching from C to C++, or even just evaluating the difficulty of it, it is a common first step to make it compilable by either compiler. It is common enough that even GCC supports a -Wc++-compat warning to tell you if you've strayed from the common subset.
I'm very undecided, but I think I'm on Sam's side. gt_NO_CXX is not even emitting a message to stdout, and even if it was saying
checking if ${CC} is a C++ compiler... yes/no it wouldn't look out-of-place in a configure script's output. Paolo