x z wrote: > I would like to see that GCC define a macro in the case it is being > used to compile a program. Currently there is a __GNUC__ macro > defined by the GNU C preprocessor CPP. That does not suit the need. > As the CPP Manual says: __GNUC__ is "defined by all GNU compilers > that use the C preprocessor". It seems to imply that any (non-GNU) > compiler that uses the GNU C preprocessor would also have __GNUC__ > defined. According to their respective manuals, Intel C++ Compiler > and Portable C Compiler also pre-define __GNUC__, possibly because > they use the GNU CPP.
They don't use GNU CPP. > Therefore, the fact that __GNUC__ is defined does not necessarily > mean the GCC compiler proper is being used. I don't think you've thought about this thoroughly. Any compiler that is not GNU C but defines __GNUC__ is lying to its users. If we define __REAL_GNUC__ they'll just define that as well. Andrew.
