On Sun, 26 Apr 2009, Roberto Bagnara wrote:
It sucks, but I guess it would be nice to occasionally build PPL and run the testsuite on linux on a PC with CPPFLAGS='-include sys/reg.h'.
we will certainly follow your suggestion. Unfortunately, this seems very "ad hoc". In other words, I wonder if there are other header files that may give rise to similar problems, and which macros are they defining.
I completely agree, hence my "it sucks". Note that this kind of extreme pollution is considered a bug, see:
http://bugs.opensolaris.org/view_bug.do?bug_id=6400595
I know it affected at some point at least PPL, CGAL and freetype. Maybe it will eventually be fixed... (it does not look like a lot of work)
But indeed, conflicting C headers, especially when it comes to macros, are a never ending problem.