don't build calc++ examples until "make check"

[Paul Eggert]

I installed this, to forestall future bug reports from installers
worried about weird C++-related failures that don't really matter.

2006-02-08  Paul Eggert  <address@hidden>

        More portability fixes for problems summarized by Nelson H. F. Beebe.

        * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
        nodist_PROGRAMS, since we don't need to actually compile the
        example if we're just doing a plain 'make'.  This avoids bothering
        the installer unnecessarily about problems due to weird C++
        compilers.

--- examples/calc++/Makefile.am 14 Sep 2005 22:10:50 -0000      1.3
+++ examples/calc++/Makefile.am 8 Feb 2006 18:55:10 -0000
@@ -1,5 +1,5 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-## Copyright (C) 2005 Free Software Foundation, Inc.
+## Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 
 ## This program is free software; you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
@@ -72,7 +72,7 @@ $(calc_sources_generated): $(srcdir)/cal
 ## Building & testing calc++.  ##
 ## --------------------------- ##
 
-noinst_PROGRAMS = calc++
+check_PROGRAMS = calc++
 
 calc_sources_extracted = $(srcdir)/calc++-scanner.ll $(srcdir)/calc++.cc \
        $(srcdir)/calc++-driver.hh $(srcdir)/calc++-driver.cc