Your bug report

#12142: automake tries to compile a program when 'foo' and 'foo.cxx' exist (though the former is header)

which was filed against the automake package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 12142@debbugs.gnu.org.

-- 
12142: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12142
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