diff --git a/lib/zlib/inflate.c b/lib/zlib/inflate.c
index aa25e61..b0757a9 100644
--- a/lib/zlib/inflate.c
+++ b/lib/zlib/inflate.c
@@ -91,20 +91,7 @@
 #  endif
 #endif
 
-/* function prototypes */
-local int inflateStateCheck OF((z_streamp strm));
-local void fixedtables OF((struct inflate_state FAR *state));
-local int updatewindow OF((z_streamp strm, const unsigned char FAR *end,
-                           unsigned copy));
-#ifdef BUILDFIXED
-   void makefixed OF((void));
-#endif
-local unsigned syncsearch OF((unsigned FAR *have, const unsigned char FAR *buf,
-                              unsigned len));
-
-local int inflateStateCheck(strm)
-z_streamp strm;
-{
+local int inflateStateCheck(z_streamp strm) {
     struct inflate_state FAR *state;
     if (strm == Z_NULL ||
         strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0)
@@ -116,9 +103,7 @@
     return 0;
 }
 
-int ZEXPORT inflateResetKeep(strm)
-z_streamp strm;
-{
+int ZEXPORT inflateResetKeep(z_streamp strm) {
     struct inflate_state FAR *state;
 
     if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
@@ -142,9 +127,7 @@
     return Z_OK;
 }
 
-int ZEXPORT inflateReset(strm)
-z_streamp strm;
-{
+int ZEXPORT inflateReset(z_streamp strm) {
     struct inflate_state FAR *state;
 
     if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
@@ -155,10 +138,7 @@
     return inflateResetKeep(strm);
 }
 
-int ZEXPORT inflateReset2(strm, windowBits)
-z_streamp strm;
-int windowBits;
-{
+int ZEXPORT inflateReset2(z_streamp strm, int windowBits) {
     int wrap;
     struct inflate_state FAR *state;
 
@@ -195,12 +175,8 @@
     return inflateReset(strm);
 }
 
-int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size)
-z_streamp strm;
-int windowBits;
-const char *version;
-int stream_size;
-{
+int ZEXPORT inflateInit2_(z_streamp strm, int windowBits,
+                          const char *version, int stream_size) {
     int ret;
     struct inflate_state FAR *state;
 
@@ -239,22 +215,17 @@
     return ret;
 }
 
-int ZEXPORT inflateInit_(strm, version, stream_size)
-z_streamp strm;
-const char *version;
-int stream_size;
-{
+int ZEXPORT inflateInit_(z_streamp strm, const char *version,
+                         int stream_size) {
     return inflateInit2_(strm, DEF_WBITS, version, stream_size);
 }
 
-int ZEXPORT inflatePrime(strm, bits, value)
-z_streamp strm;
-int bits;
-int value;
-{
+int ZEXPORT inflatePrime(z_streamp strm, int bits, int value) {
     struct inflate_state FAR *state;
 
     if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    if (bits == 0)
+        return Z_OK;
     state = (struct inflate_state FAR *)strm->state;
     if (bits < 0) {
         state->hold = 0;
@@ -278,9 +249,7 @@
    used for threaded applications, since the rewriting of the tables and virgin
    may not be thread-safe.
  */
-local void fixedtables(state)
-struct inflate_state FAR *state;
-{
+local void fixedtables(struct inflate_state FAR *state) {
 #ifdef BUILDFIXED
     static int virgin = 1;
     static code *lenfix, *distfix;
@@ -396,11 +365,7 @@
    output will fall in the output data, making match copies simpler and faster.
    The advantage may be dependent on the size of the processor's data caches.
  */
-local int updatewindow(strm, end, copy)
-z_streamp strm;
-const Bytef *end;
-unsigned copy;
-{
+local int updatewindow(z_streamp strm, const Bytef *end, unsigned copy) {
     struct inflate_state FAR *state;
     unsigned dist;
 
@@ -622,10 +587,7 @@
    will return Z_BUF_ERROR if it has not reached the end of the stream.
  */
 
-int ZEXPORT inflate(strm, flush)
-z_streamp strm;
-int flush;
-{
+int ZEXPORT inflate(z_streamp strm, int flush) {
     struct inflate_state FAR *state;
     z_const unsigned char FAR *next;    /* next input */
     unsigned char FAR *put;     /* next output */
@@ -1301,9 +1263,7 @@
     return ret;
 }
 
-int ZEXPORT inflateEnd(strm)
-z_streamp strm;
-{
+int ZEXPORT inflateEnd(z_streamp strm) {
     struct inflate_state FAR *state;
     if (inflateStateCheck(strm))
         return Z_STREAM_ERROR;
@@ -1315,11 +1275,8 @@
     return Z_OK;
 }
 
-int ZEXPORT inflateGetDictionary(strm, dictionary, dictLength)
-z_streamp strm;
-Bytef *dictionary;
-uInt *dictLength;
-{
+int ZEXPORT inflateGetDictionary(z_streamp strm, Bytef *dictionary,
+                                 uInt *dictLength) {
     struct inflate_state FAR *state;
 
     /* check state */
@@ -1338,11 +1295,8 @@
     return Z_OK;
 }
 
-int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength)
-z_streamp strm;
-const Bytef *dictionary;
-uInt dictLength;
-{
+int ZEXPORT inflateSetDictionary(z_streamp strm, const Bytef *dictionary,
+                                 uInt dictLength) {
     struct inflate_state FAR *state;
     unsigned long dictid;
     int ret;
@@ -1373,10 +1327,7 @@
     return Z_OK;
 }
 
-int ZEXPORT inflateGetHeader(strm, head)
-z_streamp strm;
-gz_headerp head;
-{
+int ZEXPORT inflateGetHeader(z_streamp strm, gz_headerp head) {
     struct inflate_state FAR *state;
 
     /* check state */
@@ -1401,11 +1352,8 @@
    called again with more data and the *have state.  *have is initialized to
    zero for the first call.
  */
-local unsigned syncsearch(have, buf, len)
-unsigned FAR *have;
-const unsigned char FAR *buf;
-unsigned len;
-{
+local unsigned syncsearch(unsigned FAR *have, const unsigned char FAR *buf,
+                          unsigned len) {
     unsigned got;
     unsigned next;
 
@@ -1424,9 +1372,7 @@
     return next;
 }
 
-int ZEXPORT inflateSync(strm)
-z_streamp strm;
-{
+int ZEXPORT inflateSync(z_streamp strm) {
     unsigned len;               /* number of bytes to look at or looked at */
     int flags;                  /* temporary to save header status */
     unsigned long in, out;      /* temporary to save total_in and total_out */
@@ -1482,9 +1428,7 @@
    block. When decompressing, PPP checks that at the end of input packet,
    inflate is waiting for these length bytes.
  */
-int ZEXPORT inflateSyncPoint(strm)
-z_streamp strm;
-{
+int ZEXPORT inflateSyncPoint(z_streamp strm) {
     struct inflate_state FAR *state;
 
     if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
@@ -1492,10 +1436,7 @@
     return state->mode == STORED && state->bits == 0;
 }
 
-int ZEXPORT inflateCopy(dest, source)
-z_streamp dest;
-z_streamp source;
-{
+int ZEXPORT inflateCopy(z_streamp dest, z_streamp source) {
     struct inflate_state FAR *state;
     struct inflate_state FAR *copy;
     unsigned char FAR *window;
@@ -1539,10 +1480,7 @@
     return Z_OK;
 }
 
-int ZEXPORT inflateUndermine(strm, subvert)
-z_streamp strm;
-int subvert;
-{
+int ZEXPORT inflateUndermine(z_streamp strm, int subvert) {
     struct inflate_state FAR *state;
 
     if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
@@ -1557,10 +1495,7 @@
 #endif
 }
 
-int ZEXPORT inflateValidate(strm, check)
-z_streamp strm;
-int check;
-{
+int ZEXPORT inflateValidate(z_streamp strm, int check) {
     struct inflate_state FAR *state;
 
     if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
@@ -1572,9 +1507,7 @@
     return Z_OK;
 }
 
-long ZEXPORT inflateMark(strm)
-z_streamp strm;
-{
+long ZEXPORT inflateMark(z_streamp strm) {
     struct inflate_state FAR *state;
 
     if (inflateStateCheck(strm))
@@ -1585,9 +1518,7 @@
             (state->mode == MATCH ? state->was - state->length : 0));
 }
 
-unsigned long ZEXPORT inflateCodesUsed(strm)
-z_streamp strm;
-{
+unsigned long ZEXPORT inflateCodesUsed(z_streamp strm) {
     struct inflate_state FAR *state;
     if (inflateStateCheck(strm)) return (unsigned long)-1;
     state = (struct inflate_state FAR *)strm->state;