Lack of clarity in description of AC_CHECK_DECL(S)

[Reuben Thomas]

In the autoconf 2.61 info manual, the syntax of AC_CHECK_DECL is given as:

 -- Macro: AC_CHECK_DECL (SYMBOL, [ACTION-IF-FOUND],
          [ACTION-IF-NOT-FOUND], [INCLUDES = `default-includes'])

Only by searching for an example of its use did I discover that the INCLUDES 
argument is actually some #include lines, and not, as I first thought, the 
text:

INCLUDES = list-of-include files

This rather odd meta-syntax confused me (the default values for 
ACTION-IF-FOUND &c. are not given, and the default for INCLUDES is explained 
below anyway.

I would suggest removing "= `default-includes'" from the syntax description, 
and adding a note to the effect that it is a list of #include directives.

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