[Plplot-devel] Swig version check implemented

[Alan W. I. <ir...@be...>]

I have just committed a swig version check according to Rafael's detailed
(private) suggestion to me.  The result is $(SWIG) is a no-op if the
developer does not have the correct version (1.3.17).  This change should
not affect ordinary users who won't be using swig in any case.

Since I didn't completely understand Rafael's suggested syntax, I tested
this both with swig version 1.3.17 and other versions, and it does what it
is supposed to do.

Actually, I didn't want an exact test for 1.3.17 since I am fairly sure that
higher versions of 1.3.x will work as well (if/when they come out).
However, I didn't know how to check for micro-version < 17 so I left that as
a != "17" test for now.  But, Rafael, if you have any ideas on how to change
that test to < "17", by all means do so.  (A test for < "17" does not work
and gives an error message concerning an unknown file 17.)

Alan
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Alan W. Irwin
email: ir...@be...
phone: 250-727-2902

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the Canadian Centre for Climate Modelling and
Analysis (www.cccma.bc.ec.gc.ca) and the PLplot scientific plotting software
package (plplot.org).

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Linux-powered Science
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