/in/inDictionary.c: In function 'main':
/in/inDictionary.c:11:48: error: implicit declaration of function 'strupr'; did you mean 'strstr'? [-Werror=implicit-function-declaration]
             if (argv[i] == argv[j]||argv[i] == strupr(argv[j])||argv[j] == strupr(argv[i])) {
                                                ^~~~~~
                                                strstr
/in/inDictionary.c:11:45: error: comparison between pointer and integer [-Werror]
             if (argv[i] == argv[j]||argv[i] == strupr(argv[j])||argv[j] == strupr(argv[i])) {
                                             ^~
/in/inDictionary.c:11:73: error: comparison between pointer and integer [-Werror]
             if (argv[i] == argv[j]||argv[i] == strupr(argv[j])||argv[j] == strupr(argv[i])) {
                                                                         ^~
cc1: all warnings being treated as errors