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These examples are taken from C99 6.10.3.5. // dprintf is used instead of fprintf to avoid needing to declare // FILE and stderr. #define debug(...) dprintf (2, __VA_ARGS__) #define showlist(...) puts (#__VA_ARGS__) #define report(test,...) 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It looks like you configured the Hoppou correctly. echo "CFLAGS ..." `echo $CFLAGS | fold -w 59 | awk 1 ORS='\nCFLAGS ... '` echo "LIBS ..." `echo $LIBS | fold -w 61 | awk 1 ORS='\nLIBS ... '` echo echo Type \`$MAKE\` to start building.