Mine

clang -iquote. -I/usr/local/include  -O2 -pipe  -DBUILD="\"0.9\"" -g -ggdb -DDEBUG -Wno-long-long -Wall -W -Wnested-externs -Wformat=2 -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wwrite-strings -Wshadow -Wpointer-arith -Wsign-compare -Wundef -Wbad-function-cast -Winline -Wcast-align -c input.c -o input.o
clang: warning: argument unused during compilation: '-g'
input.c:165:16: warning: pointer types point to integer types with different sign
      passing 'u_char [64]', expected 'char const *' [-Wpointer-sign]
        *n = strtonum(arg->data, 0, UINT16_MAX, &errstr);
                      ^~~~~~~~~
input.c:208:4: warning: pointer types point to integer types with different sign
      assigning 'u_char *', expected 'char *' [-Wpointer-sign]
        s = ictx->string_buf;
          ^ ~~~~~~~~~~~~~~~~
2 diagnostics generated.

clang -iquote. -I/usr/local/include  -O2 -pipe  -DBUILD="\"0.9\"" -g -ggdb -DDEBUG -Wno-long-long -Wall -W -Wnested-externs -Wformat=2 -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wwrite-strings -Wshadow -Wpointer-arith -Wsign-compare -Wundef -Wbad-function-cast -Winline -Wcast-align -c key-string.c -o key-string.o
clang: warning: argument unused during compilation: '-g'
key-string.c:111:7: warning: pointer types point to integer types with different
      sign assigning 'char const *', expected 'u_char const *' [-Wpointer-sign]
                ptr = string + 2;
                    ^ ~~~~~~~~~~
key-string.c:113:7: warning: pointer types point to integer types with different
      sign assigning 'char const *', expected 'u_char const *' [-Wpointer-sign]
                ptr = string + 1;
                    ^ ~~~~~~~~~~
key-string.c:126:33: warning: pointer types point to integer types with different
      sign passing 'u_char const *', expected 'char const *' [-Wpointer-sign]
                key = key_string_search_table(ptr);
                                              ^~~
key-string.c:133:7: warning: pointer types point to integer types with different
      sign assigning 'char const *', expected 'u_char const *' [-Wpointer-sign]
                ptr = string + 2;
                    ^ ~~~~~~~~~~
key-string.c:141:34: warning: pointer types point to integer types with different
      sign passing 'u_char const *', expected 'char const *' [-Wpointer-sign]
                key = key_string_lookup_string(ptr);
                                               ^~~
5 diagnostics generated.

clang -iquote. -I/usr/local/include  -O2 -pipe  -DBUILD="\"0.9\"" -g -ggdb -DDEBUG -Wno-long-long -Wall -W -Wnested-externs -Wformat=2 -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wwrite-strings -Wshadow -Wpointer-arith -Wsign-compare -Wundef -Wbad-function-cast -Winline -Wcast-align -c log.c -o log.o
clang: warning: argument unused during compilation: '-g'
log.c:127:19: warning: format string is not a string literal [-Wformat-nonliteral]
                if (vfprintf(f, fmt, ap) == -1)
                                ^~~
1 diagnostic generated.

clang -iquote. -I/usr/local/include  -O2 -pipe  -DBUILD="\"0.9\"" -g -ggdb -DDEBUG -Wno-long-long -Wall -W -Wnested-externs -Wformat=2 -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wwrite-strings -Wshadow -Wpointer-arith -Wsign-compare -Wundef -Wbad-function-cast -Winline -Wcast-align -c tty-keys.c -o tty-keys.o
clang: warning: argument unused during compilation: '-g'
tty-keys.c:239:6: warning: pointer types point to integer types with different sign
      assigning 'u_char *', expected 'char *' [-Wpointer-sign]
        buf = BUFFER_OUT(tty->in);
            ^ ~~~~~~~~~~~~~~~~~~~
1 diagnostic generated.

clang -iquote. -I/usr/local/include  -O2 -pipe  -DBUILD="\"0.9\"" -g -ggdb -DDEBUG -Wno-long-long -Wall -W -Wnested-externs -Wformat=2 -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations -Wwrite-strings -Wshadow -Wpointer-arith -Wsign-compare -Wundef -Wbad-function-cast -Winline -Wcast-align -c util.c -o util.o
clang: warning: argument unused during compilation: '-g'
util.c:62:10: warning: pointer types point to integer types with different sign
      assigning 'char const *', expected 'u_char const *' [-Wpointer-sign]
        for (cp = in; *cp != '\0'; cp++) {
                ^ ~~
1 diagnostic generated.