libtool: compile:  /usr/bin/clang -DHAVE_CONFIG_H -I. -I../../../../ext/test/fail_fs -I../../.. -I../../../api/leveldb -I../../.. -I../../../../src/include -std=c11 -D_GNU_SOURCE -Weverything -Werror -Wno-cast-align -Wno-documentation-unknown-command -Wno-format-nonliteral -Wno-packed -Wno-padded -Wno-reserved-id-macro -Wno-zero-length-array -Wno-cast-qual -Wno-unknown-warning-option -O3 -g -MT fail_fs.lo -MD -MP -MF .deps/fail_fs.Tpo -c ../../../../ext/test/fail_fs/fail_fs.c  -fPIC -DPIC -o .libs/fail_fs.o
../../../../ext/test/fail_fs/fail_fs.c:404:6: error: disabled expansion of
      recursive macro [-Werror,-Wdisabled-macro-expansion]
        if (strncmp(match, key->str, key->len) == 0 &&
            ^
/usr/include/bits/string2.h:925:25: note: expanded from macro 'strncmp'
                  ? strcmp (s1, s2) : strncmp (s1, s2, n)))
                                      ^
../../../../ext/test/fail_fs/fail_fs.c:446:7: error: disabled expansion of
      recursive macro [-Werror,-Wdisabled-macro-expansion]
                if (strncmp(name, directory, len) != 0 ||
                    ^
/usr/include/bits/string2.h:925:25: note: expanded from macro 'strncmp'
                  ? strcmp (s1, s2) : strncmp (s1, s2, n)))
                                      ^
../../../../ext/test/fail_fs/fail_fs.c:447:26: error: disabled expansion of
      recursive macro [-Werror,-Wdisabled-macro-expansion]
                    (prefix != NULL && strncmp(name, prefix, prefix_len) != 0))
                                       ^
/usr/include/bits/string2.h:925:25: note: expanded from macro 'strncmp'
                  ? strcmp (s1, s2) : strncmp (s1, s2, n)))
                                      ^
../../../../ext/test/fail_fs/fail_fs.c:466:22: error: disabled expansion of
      recursive macro [-Werror,-Wdisabled-macro-expansion]
                entries[count++] = strdup(name);
                                   ^
/usr/include/bits/string2.h:1314:22: note: expanded from macro 'strdup'
#   define strdup(s) __strdup (s)
                     ^
/usr/include/bits/string2.h:1311:7: note: expanded from macro '__strdup'
                  : __strdup (s)))
                    ^
../../../../ext/test/fail_fs/fail_fs.c:609:27: error: disabled expansion of
      recursive macro [-Werror,-Wdisabled-macro-expansion]
        if ((file_handle->name = strdup(name)) == NULL) {
                                 ^
/usr/include/bits/string2.h:1314:22: note: expanded from macro 'strdup'
#   define strdup(s) __strdup (s)
                     ^
/usr/include/bits/string2.h:1311:7: note: expanded from macro '__strdup'
                  : __strdup (s)))
                    ^
5 errors generated.




../src/os_posix/os_fallocate.c:65:6: error: implicit conversion loses integer
      precision: 'long' to 'int' [-Werror,-Wshorten-64-to-32]
            syscall(SYS_fallocate, pfh->fd, 0, (wt_off_t)0, offset), ret);
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../src/include/os.h:34:14: note: expanded from macro 'WT_SYSCALL_RETRY'
                WT_SYSCALL(call, ret);                                  \
                           ^
../src/include/os.h:15:16: note: expanded from macro 'WT_SYSCALL'
        if (((ret) = (call)) == 0)