Eric Blake asked: > How likely is it that -arch appears multiple times, but always with the > same argument?
10% to 30%, I'd say. You also often see build command lines with duplicated
-Wall. Why? Because
- some people specify the same flags through both CC and CFLAGS,
- with multiple layers of software built on top of autoconf (automake,
the KDE 3 build system etc.), these layers are likely to specify
commonplace options like -arch or -Wall independently.
Bruno
