buglet in 7.1.4

Hi folks,


I've found a little bug in version 7.1.3 in conjunction w/ the
new gcc, which prints our more than one line on --version. 
(simply added | head -n 1)

The problem is that the gcc --version output is copied into 
confdefs.h and so produces compile erros. 

This problem does not appear on current 7.4.1.

See attached patch.

cu
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