$ make
[  2%] Building C object CMakeFiles/libminizip.dir/src/mz_os.c.o
[  4%] Building C object CMakeFiles/libminizip.dir/src/mz_compat.c.o
[  6%] Building C object CMakeFiles/libminizip.dir/src/mz_strm.c.o
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:435:9: warning: no previous prototype for function 'mz_stream_raw_open'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_open(void *stream, const char *path, int32_t mode)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:440:9: warning: no previous prototype for function 'mz_stream_raw_is_open'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_is_open(void *stream)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:446:9: warning: no previous prototype for function 'mz_stream_raw_read'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_read(void *stream, void *buf, int32_t size)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:466:9: warning: no previous prototype for function 'mz_stream_raw_write'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_write(void *stream, const void *buf, int32_t size)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:475:9: warning: no previous prototype for function 'mz_stream_raw_tell'
      [-Wmissing-prototypes]
int64_t mz_stream_raw_tell(void *stream)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:481:9: warning: no previous prototype for function 'mz_stream_raw_seek'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_seek(void *stream, int64_t offset, int32_t origin)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:487:9: warning: no previous prototype for function 'mz_stream_raw_close'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_close(void *stream)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:492:9: warning: no previous prototype for function 'mz_stream_raw_error'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_error(void *stream)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:498:9: warning: no previous prototype for function 'mz_stream_raw_get_prop_int64'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_get_prop_int64(void *stream, int32_t prop, int64_t *value)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm.c:513:9: warning: no previous prototype for function 'mz_stream_raw_set_prop_int64'
      [-Wmissing-prototypes]
int32_t mz_stream_raw_set_prop_int64(void *stream, int32_t prop, int64_t value)
        ^
10 warnings generated.
[  8%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_buf.c.o
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_buf.c:79:9: warning: no previous prototype for function 'mz_stream_buffered_flush'
      [-Wmissing-prototypes]
int32_t mz_stream_buffered_flush(void *stream, int32_t *written)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_buf.c:239:9: warning: no previous prototype for function
      'mz_stream_buffered_tellinternal' [-Wmissing-prototypes]
int64_t mz_stream_buffered_tellinternal(void *stream, uint64_t position)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_buf.c:261:5: warning: no previous prototype for function
      'mz_stream_buffered_seekinternal' [-Wmissing-prototypes]
int mz_stream_buffered_seekinternal(void *stream, int64_t offset, int32_t origin)
    ^
3 warnings generated.
[ 10%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_mem.c.o
[ 13%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_posix.c.o
[ 15%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_split.c.o
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_split.c:69:9: warning: no previous prototype for function 'mz_stream_split_open_disk'
      [-Wmissing-prototypes]
int32_t mz_stream_split_open_disk(void *stream, int32_t number_disk)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_split.c:143:9: warning: no previous prototype for function 'mz_stream_split_close_disk'
      [-Wmissing-prototypes]
int32_t mz_stream_split_close_disk(void *stream)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_split.c:153:9: warning: no previous prototype for function 'mz_stream_split_goto_disk'
      [-Wmissing-prototypes]
int32_t mz_stream_split_goto_disk(void *stream, int32_t number_disk)
        ^
3 warnings generated.
[ 17%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_zlib.c.o
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_zlib.c:198:9: warning: no previous prototype for function 'mz_stream_zlib_flush'
      [-Wmissing-prototypes]
int32_t mz_stream_zlib_flush(void *stream)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_zlib.c:206:9: warning: no previous prototype for function 'mz_stream_zlib_deflate'
      [-Wmissing-prototypes]
int32_t mz_stream_zlib_deflate(void *stream, int flush)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_zlib.c:372:9: warning: no previous prototype for function 'mz_stream_zlib_crc32'
      [-Wmissing-prototypes]
int32_t mz_stream_zlib_crc32(int32_t value, const void *buf, int32_t size)
        ^
3 warnings generated.
[ 19%] Building C object CMakeFiles/libminizip.dir/src/mz_zip.c.o
[ 21%] Building C object CMakeFiles/libminizip.dir/src/mz_os_posix.c.o
[ 23%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_crypt.c.o
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_crypt.c:83:9: warning: no previous prototype for function
      'mz_stream_crypt_decrypt_byte' [-Wmissing-prototypes]
uint8_t mz_stream_crypt_decrypt_byte(uint32_t *keys)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_crypt.c:93:9: warning: no previous prototype for function 'mz_stream_crypt_update_keys'
      [-Wmissing-prototypes]
uint8_t mz_stream_crypt_update_keys(uint32_t *keys, const z_crc_t *crc_32_tab, int32_t c)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_crypt.c:107:6: warning: no previous prototype for function 'mz_stream_crypt_init_keys'
      [-Wmissing-prototypes]
void mz_stream_crypt_init_keys(const char *password, uint32_t *keys, const z_crc_t *crc_32_tab)
     ^
3 warnings generated.
[ 26%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_aes.c.o
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_aes.c:175:9: warning: no previous prototype for function 'mz_stream_aes_encrypt_data'
      [-Wmissing-prototypes]
int32_t mz_stream_aes_encrypt_data(void *stream, uint8_t *buf, int32_t size)
        ^
1 warning generated.
[ 28%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_bzip.c.o
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_bzip.c:193:9: warning: no previous prototype for function 'mz_stream_bzip_flush'
      [-Wmissing-prototypes]
int32_t mz_stream_bzip_flush(void *stream)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_bzip.c:201:9: warning: no previous prototype for function 'mz_stream_bzip_compress'
      [-Wmissing-prototypes]
int32_t mz_stream_bzip_compress(void *stream, int flush)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_bzip.c:372:13: warning: no previous prototype for function 'bz_internal_error'
      [-Wmissing-prototypes]
extern void bz_internal_error(int errcode)
            ^
3 warnings generated.
[ 30%] Building C object CMakeFiles/libminizip.dir/src/mz_strm_lzma.c.o
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_lzma.c:210:9: warning: no previous prototype for function 'mz_stream_lzma_flush'
      [-Wmissing-prototypes]
int32_t mz_stream_lzma_flush(void *stream)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_lzma.c:218:9: warning: no previous prototype for function 'mz_stream_lzma_code'
      [-Wmissing-prototypes]
int32_t mz_stream_lzma_code(void *stream, int32_t flush)
        ^
/Users/emiller/Code/WizardLibs/minizip/src/mz_strm_lzma.c:386:9: warning: no previous prototype for function 'mz_stream_lzma_crc32'
      [-Wmissing-prototypes]
int32_t mz_stream_lzma_crc32(int32_t value, const void *buf, int32_t size)
        ^
3 warnings generated.
[ 32%] Building C object CMakeFiles/libminizip.dir/lib/aes/aescrypt.c.o
[ 34%] Building C object CMakeFiles/libminizip.dir/lib/aes/aeskey.c.o
[ 36%] Building C object CMakeFiles/libminizip.dir/lib/aes/aestab.c.o
[ 39%] Building C object CMakeFiles/libminizip.dir/lib/aes/aes_ni.c.o
[ 41%] Building C object CMakeFiles/libminizip.dir/lib/aes/hmac.c.o
[ 43%] Building C object CMakeFiles/libminizip.dir/lib/aes/pwd2key.c.o
/Users/emiller/Code/WizardLibs/minizip/lib/aes/pwd2key.c:32:6: warning: no previous prototype for function 'derive_key'
      [-Wmissing-prototypes]
void derive_key(const unsigned char pwd[],  /* the PASSWORD     */
     ^
1 warning generated.

$ clang --version
Apple LLVM version 9.0.0 (clang-900.0.39.2)
Target: x86_64-apple-darwin17.3.0