Any reason GUILE_X_VERSION shouldn't be defined in a public header?

[Rob Browning]

Right now we have at the scheme level:

  version
  major-version
  minor-version
  micro-version

and at the C level

  SCM scm_version (void);
  SCM scm_major_version (void);
  SCM scm_minor_version (void);
  SCM scm_micro_version (void);

Unless someone points out a good reason not to, I'm thinking of also
adding

  #define GUILE_MAJOR_VERSION X
  #define GUILE_MINOR_VERSION Y
  #define GUILE_MICRO_VERSION Z

to version.h so that from now on, apps will be able to use these for
conditional compilation.

Thanks

-- 
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
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