[Bug fortran/31547] Document when CPP is called and document the f95-cpp-input option

[burnus at gcc dot gnu dot org]

------- Comment #1 from burnus at gcc dot gnu dot org  2007-09-06 18:52 -------
One should also crosslink to CPP http://gcc.gnu.org/onlinedocs/cpp/ or to
  http://gcc.gnu.org/onlinedocs/cpp/Standard-Predefined-Macros.html
which mentions also __GNUC__ (= gfortran version) and __GFORTRAN__.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31547