Compilation results, warnings turned on

GCC, gcc -std=c99 -Wall -Wextra -o boring boring.c

  o Mac OS X, iMac
        $ make Clean
        rm -f boring write-boring
        rm -f boring.c
        
        $ make
        gcc -std=c99 -Wall -Wextra -o write-boring write-boring.c
        ./write-boring > boring.c
        gcc -std=c99 -Wall -Wextra -o boring boring.c
        boring.c: In function 'main':
        boring.c:9: warning: embedded '\0' in format
        boring.c:46: warning: spurious trailing '%' in format


  o Mac OS X, Mac Pro
        % make Clean
        rm -f boring write-boring
        rm -f boring.c
        
        % make
        gcc -std=c99 -Wall -Wextra -o write-boring write-boring.c
        ./write-boring > boring.c
        gcc -std=c99 -Wall -Wextra -o boring boring.c
        boring.c: In function 'main':
        boring.c:9: warning: embedded '\0' in format
        boring.c:46: warning: spurious trailing '%' in format


  o Linux
        % make Clean
        rm -f boring write-boring
        rm -f boring.c
        
        % make
        gcc -std=c99 -Wall -Wextra -o write-boring write-boring.c
        ./write-boring > boring.c
        gcc -std=c99 -Wall -Wextra -o boring boring.c
        boring.c: In function 'main':
        boring.c:9: warning: embedded '\0' in format
        boring.c:46: warning: spurious trailing '%' in format


  o Solaris
        % make Clean
        rm -f boring write-boring
        rm -f boring.c
        
        % make 
        gcc -std=c99 -Wall -Wextra -o write-boring write-boring.c
        ./write-boring > boring.c
        gcc -std=c99 -Wall -Wextra -o boring boring.c
        boring.c: In function 'main':
        boring.c:9: warning: embedded '\0' in format
        boring.c:46: warning: spurious trailing '%' in format



Sun's C compiler, c99 -v -o boring boring.c

  o Solaris
        % make Clean
        rm -f boring write-boring
        rm -f boring.c
        
        % make
        c99 -v -o write-boring write-boring.c
        ./write-boring > boring.c
        c99 -v -o boring boring.c


Sun's lint, lint boring.c

  o Solaris
        % lint write-boring.c
        
        function returns value which is always ignored
        printf          
        
        % lint boring.c
        
        function returns value which is always ignored
        printf          
        
        malformed format string
        printf              boring.c(46)