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Backport of upstream revision r64953:

2022-11-06  Sam James  <sam@gentoo.org>

	* freetype-src/builds/unix/freetype2.m4: placate clang16.
	https://tug.org/pipermail/tlbuild/2022q4/005273.html

2022-11-06  Karl Berry  <karl@freefriends.org>

	* patch-01-do-not-export-internal-zlib: add.
	* patch-04-void-main: add (see ../ChangeLog).

2022-11-06  Sam James  <sam@gentoo.org>

	* libgd-src/tests/xpm/bug00185.c: placate clang16.
	https://tug.org/pipermail/tlbuild/2022q4/005273.html

2022-11-06  Sam James  <sam@gentoo.org>

	* basename.c: placate clang16.
	https://tug.org/pipermail/tlbuild/2022q4/005273.html

2022-11-06  Sam James  <sam@gentoo.org>

	* pmx-src/libf2c/main.c: placate clang16.
	https://tug.org/pipermail/tlbuild/2022q4/005273.html

Index: Build/source/libs/freetype2/TLpatches/patch-01-do-not-export-internal-zlib
===================================================================
--- Build/source/libs/freetype2/TLpatches/patch-01-do-not-export-internal-zlib	(nonexistent)
+++ Build/source/libs/freetype2/TLpatches/patch-01-do-not-export-internal-zlib	(revision 64953)
@@ -0,0 +1,626 @@
+diff -ur freetype-2.12.1/src/gzip/adler32.c freetype-src/src/gzip/adler32.c
+--- freetype-2.12.1/src/gzip/adler32.c	Fri Apr 01 17:24:23 2022
++++ freetype-src/src/gzip/adler32.c	Thu May 05 07:23:26 2022
+@@ -62,7 +62,7 @@
+ #endif
+ 
+ /* ========================================================================= */
+-uLong ZEXPORT adler32_z(
++static uLong ZEXPORT adler32_z(
+     uLong adler,
+     const Bytef *buf,
+     z_size_t len)
+@@ -133,7 +133,7 @@
+ }
+ 
+ /* ========================================================================= */
+-uLong ZEXPORT adler32(
++static uLong ZEXPORT adler32(
+     uLong adler,
+     const Bytef *buf,
+     uInt len)
+@@ -173,7 +173,7 @@
+ }
+ 
+ /* ========================================================================= */
+-uLong ZEXPORT adler32_combine(
++static uLong ZEXPORT adler32_combine(
+     uLong adler1,
+     uLong adler2,
+     z_off_t len2)
+@@ -181,7 +181,7 @@
+     return adler32_combine_(adler1, adler2, len2);
+ }
+ 
+-uLong ZEXPORT adler32_combine64(
++static uLong ZEXPORT adler32_combine64(
+     uLong adler1,
+     uLong adler2,
+     z_off64_t len2)
+diff -ur freetype-2.12.1/src/gzip/crc32.c freetype-src/src/gzip/crc32.c
+--- freetype-2.12.1/src/gzip/crc32.c	Fri Apr 01 16:13:52 2022
++++ freetype-src/src/gzip/crc32.c	Fri May 06 12:34:16 2022
+@@ -583,7 +583,7 @@
+  * This function can be used by asm versions of crc32(), and to force the
+  * generation of the CRC tables in a threaded application.
+  */
+-const z_crc_t FAR * ZEXPORT get_crc_table()
++static const z_crc_t FAR * ZEXPORT get_crc_table()
+ {
+ #ifdef DYNAMIC_CRC_TABLE
+     once(&made, make_crc_table);
+@@ -610,7 +610,7 @@
+ #define Z_BATCH_ZEROS 0xa10d3d0c    /* computed from Z_BATCH = 3990 */
+ #define Z_BATCH_MIN 800             /* fewest words in a final batch */
+ 
+-unsigned long ZEXPORT crc32_z(
++static unsigned long ZEXPORT crc32_z(
+     unsigned long crc,
+     const unsigned char FAR *buf,
+     z_size_t len)
+@@ -736,7 +736,7 @@
+ #endif
+ 
+ /* ========================================================================= */
+-unsigned long ZEXPORT crc32_z(
++static unsigned long ZEXPORT crc32_z(
+     unsigned long crc,
+     const unsigned char FAR *buf,
+     z_size_t len)
+@@ -1060,7 +1060,7 @@
+ #endif
+ 
+ /* ========================================================================= */
+-unsigned long ZEXPORT crc32(
++static unsigned long ZEXPORT crc32(
+     unsigned long crc,
+     const unsigned char FAR *buf,
+     uInt len)
+@@ -1069,7 +1069,7 @@
+ }
+ 
+ /* ========================================================================= */
+-uLong ZEXPORT crc32_combine64(
++static uLong ZEXPORT crc32_combine64(
+     uLong crc1,
+     uLong crc2,
+     z_off64_t len2)
+@@ -1081,7 +1081,7 @@
+ }
+ 
+ /* ========================================================================= */
+-uLong ZEXPORT crc32_combine(
++static uLong ZEXPORT crc32_combine(
+     uLong crc1,
+     uLong crc2,
+     z_off_t len2)
+@@ -1090,7 +1090,7 @@
+ }
+ 
+ /* ========================================================================= */
+-uLong ZEXPORT crc32_combine_gen64(
++static uLong ZEXPORT crc32_combine_gen64(
+     z_off64_t len2)
+ {
+ #ifdef DYNAMIC_CRC_TABLE
+@@ -1100,14 +1100,14 @@
+ }
+ 
+ /* ========================================================================= */
+-uLong ZEXPORT crc32_combine_gen(
++static uLong ZEXPORT crc32_combine_gen(
+     z_off_t len2)
+ {
+     return crc32_combine_gen64(len2);
+ }
+ 
+ /* ========================================================================= */
+-uLong crc32_combine_op(
++static uLong crc32_combine_op(
+     uLong crc1,
+     uLong crc2,
+     uLong op)
+diff -ur freetype-2.12.1/src/gzip/ftgzip.c freetype-src/src/gzip/ftgzip.c
+--- freetype-2.12.1/src/gzip/ftgzip.c	Thu Jan 27 16:43:19 2022
++++ freetype-src/src/gzip/ftgzip.c	Fri May 06 12:01:06 2022
+@@ -80,6 +80,9 @@
+ #define HAVE_HIDDEN  1
+ #define ZEXPORT
+ #define ZEXTERN      static
++#else
++#define ZEXPORT
++#define ZEXTERN      static
+ #endif
+ 
+ #define Z_SOLO      1
+@@ -160,7 +163,7 @@
+ 
+ #if !defined( FT_CONFIG_OPTION_SYSTEM_ZLIB ) && !defined( USE_ZLIB_ZCALLOC )
+ 
+-  voidpf ZLIB_INTERNAL
++  static voidpf ZLIB_INTERNAL
+   zcalloc ( voidpf    opaque,
+             unsigned  items,
+             unsigned  size )
+@@ -169,7 +172,7 @@
+   }
+ 
+ 
+-  void ZLIB_INTERNAL
++  static void ZLIB_INTERNAL
+   zcfree( voidpf  opaque,
+           voidpf  ptr )
+   {
+diff -ur freetype-2.12.1/src/gzip/gzguts.h freetype-src/src/gzip/gzguts.h
+--- freetype-2.12.1/src/gzip/gzguts.h	Fri Apr 01 17:24:23 2022
++++ freetype-src/src/gzip/gzguts.h	Sat May 07 14:12:37 2022
+@@ -12,11 +12,8 @@
+ #  endif
+ #endif
+ 
+-#ifdef HAVE_HIDDEN
+-#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+-#else
+-#  define ZLIB_INTERNAL
+-#endif
++/* we use "static" for all platforms */
++#define ZLIB_INTERNAL
+ 
+ #include <stdio.h>
+ #include "zlib.h"
+@@ -203,9 +200,9 @@
+ typedef gz_state FAR *gz_statep;
+ 
+ /* shared functions */
+-void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *));
++static void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *));
+ #if defined UNDER_CE
+-char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error));
++static char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error));
+ #endif
+ 
+ /* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t
+@@ -214,6 +211,6 @@
+ #ifdef INT_MAX
+ #  define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX)
+ #else
+-unsigned ZLIB_INTERNAL gz_intmax OF((void));
++static unsigned ZLIB_INTERNAL gz_intmax OF((void));
+ #  define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax())
+ #endif
+diff -ur freetype-2.12.1/src/gzip/infback.c freetype-src/src/gzip/infback.c
+--- freetype-2.12.1/src/gzip/infback.c	Fri Apr 01 16:13:52 2022
++++ freetype-src/src/gzip/infback.c	Thu May 05 07:24:06 2022
+@@ -25,7 +25,7 @@
+    windowBits is in the range 8..15, and window is a user-supplied
+    window and output buffer that is 2**windowBits bytes.
+  */
+-int ZEXPORT inflateBackInit_(
++static int ZEXPORT inflateBackInit_(
+     z_streamp strm,
+     int windowBits,
+     unsigned char FAR *window,
+@@ -247,7 +247,7 @@
+    inflateBack() can also return Z_STREAM_ERROR if the input parameters
+    are not correct, i.e. strm is Z_NULL or the state was not initialized.
+  */
+-int ZEXPORT inflateBack(
++static int ZEXPORT inflateBack(
+     z_streamp strm,
+     in_func in,
+     void FAR *in_desc,
+@@ -629,7 +629,7 @@
+     return ret;
+ }
+ 
+-int ZEXPORT inflateBackEnd(
++static int ZEXPORT inflateBackEnd(
+     z_streamp strm)
+ {
+     if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
+diff -ur freetype-2.12.1/src/gzip/inffast.c freetype-src/src/gzip/inffast.c
+--- freetype-2.12.1/src/gzip/inffast.c	Fri Apr 01 16:13:52 2022
++++ freetype-src/src/gzip/inffast.c	Fri May 06 12:01:59 2022
+@@ -47,7 +47,7 @@
+       requires strm->avail_out >= 258 for each loop to avoid checking for
+       output space.
+  */
+-void ZLIB_INTERNAL inflate_fast(
++static void ZLIB_INTERNAL inflate_fast(
+     z_streamp strm,
+     unsigned start)
+ {
+diff -ur freetype-2.12.1/src/gzip/inffast.h freetype-src/src/gzip/inffast.h
+--- freetype-2.12.1/src/gzip/inffast.h	Fri Apr 01 16:13:52 2022
++++ freetype-src/src/gzip/inffast.h	Fri May 06 12:25:15 2022
+@@ -8,4 +8,4 @@
+    subject to change. Applications should only use zlib.h.
+  */
+ 
+-void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start));
++static void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start));
+diff -ur freetype-2.12.1/src/gzip/inflate.c freetype-src/src/gzip/inflate.c
+--- freetype-2.12.1/src/gzip/inflate.c	Fri Apr 01 17:25:55 2022
++++ freetype-src/src/gzip/inflate.c	Thu May 05 07:24:18 2022
+@@ -118,7 +118,7 @@
+     return 0;
+ }
+ 
+-int ZEXPORT inflateResetKeep(
++static int ZEXPORT inflateResetKeep(
+     z_streamp strm)
+ {
+     struct inflate_state FAR *state;
+@@ -144,7 +144,7 @@
+     return Z_OK;
+ }
+ 
+-int ZEXPORT inflateReset(
++static int ZEXPORT inflateReset(
+     z_streamp strm)
+ {
+     struct inflate_state FAR *state;
+@@ -157,7 +157,7 @@
+     return inflateResetKeep(strm);
+ }
+ 
+-int ZEXPORT inflateReset2(
++static int ZEXPORT inflateReset2(
+     z_streamp strm,
+     int windowBits)
+ {
+@@ -195,7 +195,7 @@
+     return inflateReset(strm);
+ }
+ 
+-int ZEXPORT inflateInit2_(
++static int ZEXPORT inflateInit2_(
+     z_streamp strm,
+     int windowBits,
+     const char *version,
+@@ -239,7 +239,7 @@
+     return ret;
+ }
+ 
+-int ZEXPORT inflateInit_(
++static int ZEXPORT inflateInit_(
+     z_streamp strm,
+     const char *version,
+     int stream_size)
+@@ -249,7 +249,7 @@
+ 
+ #ifndef Z_FREETYPE
+ 
+-int ZEXPORT inflatePrime(
++static int ZEXPORT inflatePrime(
+     z_streamp strm,
+     int bits,
+     int value)
+@@ -626,7 +626,7 @@
+    will return Z_BUF_ERROR if it has not reached the end of the stream.
+  */
+ 
+-int ZEXPORT inflate(
++static int ZEXPORT inflate(
+     z_streamp strm,
+     int flush)
+ {
+@@ -1304,7 +1304,7 @@
+     return ret;
+ }
+ 
+-int ZEXPORT inflateEnd(
++static int ZEXPORT inflateEnd(
+     z_streamp strm)
+ {
+     struct inflate_state FAR *state;
+@@ -1320,7 +1320,7 @@
+ 
+ #ifndef Z_FREETYPE
+ 
+-int ZEXPORT inflateGetDictionary(
++static int ZEXPORT inflateGetDictionary(
+     z_streamp strm,
+     Bytef *dictionary,
+     uInt *dictLength)
+@@ -1343,7 +1343,7 @@
+     return Z_OK;
+ }
+ 
+-int ZEXPORT inflateSetDictionary(
++static int ZEXPORT inflateSetDictionary(
+     z_streamp strm,
+     const Bytef *dictionary,
+     uInt dictLength)
+@@ -1378,7 +1378,7 @@
+     return Z_OK;
+ }
+ 
+-int ZEXPORT inflateGetHeader(
++static int ZEXPORT inflateGetHeader(
+     z_streamp strm,
+     gz_headerp head)
+ {
+@@ -1429,7 +1429,7 @@
+     return next;
+ }
+ 
+-int ZEXPORT inflateSync(
++static int ZEXPORT inflateSync(
+     z_streamp strm)
+ {
+     unsigned len;               /* number of bytes to look at or looked at */
+@@ -1489,7 +1489,7 @@
+    block. When decompressing, PPP checks that at the end of input packet,
+    inflate is waiting for these length bytes.
+  */
+-int ZEXPORT inflateSyncPoint(
++static int ZEXPORT inflateSyncPoint(
+     z_streamp strm)
+ {
+     struct inflate_state FAR *state;
+@@ -1501,7 +1501,7 @@
+ 
+ #ifndef Z_FREETYPE
+ 
+-int ZEXPORT inflateCopy(
++static int ZEXPORT inflateCopy(
+     z_streamp dest,
+     z_streamp source)
+ {
+@@ -1550,7 +1550,7 @@
+ 
+ #endif  /* !Z_FREETYPE */
+ 
+-int ZEXPORT inflateUndermine(
++static int ZEXPORT inflateUndermine(
+     z_streamp strm,
+     int subvert)
+ {
+@@ -1568,7 +1568,7 @@
+ #endif
+ }
+ 
+-int ZEXPORT inflateValidate(
++static int ZEXPORT inflateValidate(
+     z_streamp strm,
+     int check)
+ {
+@@ -1585,7 +1585,7 @@
+ 
+ #ifndef Z_FREETYPE
+ 
+-long ZEXPORT inflateMark(
++static long ZEXPORT inflateMark(
+     z_streamp strm)
+ {
+     struct inflate_state FAR *state;
+@@ -1598,7 +1598,7 @@
+             (state->mode == MATCH ? state->was - state->length : 0));
+ }
+ 
+-unsigned long ZEXPORT inflateCodesUsed(
++static unsigned long ZEXPORT inflateCodesUsed(
+     z_streamp strm)
+ {
+     struct inflate_state FAR *state;
+diff -ur freetype-2.12.1/src/gzip/inftrees.c freetype-src/src/gzip/inftrees.c
+--- freetype-2.12.1/src/gzip/inftrees.c	Fri Apr 01 16:13:52 2022
++++ freetype-src/src/gzip/inftrees.c	Fri May 06 12:33:23 2022
+@@ -8,7 +8,7 @@
+ 
+ #define MAXBITS 15
+ 
+-const char inflate_copyright[] =
++static const char inflate_copyright[] =
+    " inflate 1.2.12 Copyright 1995-2022 Mark Adler ";
+ /*
+   If you use the zlib library in a product, an acknowledgment is welcome
+@@ -29,7 +29,7 @@
+    table index bits.  It will differ if the request is greater than the
+    longest code or if it is less than the shortest code.
+  */
+-int ZLIB_INTERNAL inflate_table(
++static int ZLIB_INTERNAL inflate_table(
+     codetype type,
+     unsigned short FAR *lens,
+     unsigned codes,
+diff -ur freetype-2.12.1/src/gzip/inftrees.h freetype-src/src/gzip/inftrees.h
+--- freetype-2.12.1/src/gzip/inftrees.h	Fri Apr 01 17:24:23 2022
++++ freetype-src/src/gzip/inftrees.h	Fri May 06 12:25:35 2022
+@@ -60,7 +60,7 @@
+     DISTS
+ } codetype;
+ 
+-int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens,
++static int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens,
+                              unsigned codes, code FAR * FAR *table,
+                              unsigned FAR *bits, unsigned short FAR *work));
+ 
+diff -ur freetype-2.12.1/src/gzip/zutil.c freetype-src/src/gzip/zutil.c
+--- freetype-2.12.1/src/gzip/zutil.c	Fri Apr 01 16:13:54 2022
++++ freetype-src/src/gzip/zutil.c	Fri May 06 12:08:24 2022
+@@ -10,7 +10,7 @@
+ #  include "gzguts.h"
+ #endif
+ 
+-z_const char * const z_errmsg[10] = {
++static z_const char * const z_errmsg[10] = {
+     (z_const char *)"need dictionary",     /* Z_NEED_DICT       2  */
+     (z_const char *)"stream end",          /* Z_STREAM_END      1  */
+     (z_const char *)"",                    /* Z_OK              0  */
+@@ -24,12 +24,12 @@
+ };
+ 
+ 
+-const char * ZEXPORT zlibVersion()
++static const char * ZEXPORT zlibVersion()
+ {
+     return ZLIB_VERSION;
+ }
+ 
+-uLong ZEXPORT zlibCompileFlags()
++static uLong ZEXPORT zlibCompileFlags()
+ {
+     uLong flags;
+ 
+@@ -117,9 +117,9 @@
+ #  ifndef verbose
+ #    define verbose 0
+ #  endif
+-int ZLIB_INTERNAL z_verbose = verbose;
++static int ZLIB_INTERNAL z_verbose = verbose;
+ 
+-void ZLIB_INTERNAL z_error (
++static void ZLIB_INTERNAL z_error (
+     char *m)
+ {
+     fprintf(stderr, "%s\n", m);
+@@ -130,7 +130,7 @@
+ /* exported to allow conversion of error code to string for compress() and
+  * uncompress()
+  */
+-const char * ZEXPORT zError(
++static const char * ZEXPORT zError(
+     int err)
+ {
+     return ERR_MSG(err);
+@@ -146,7 +146,7 @@
+ 
+ #ifndef HAVE_MEMCPY
+ 
+-void ZLIB_INTERNAL zmemcpy(
++static void ZLIB_INTERNAL zmemcpy(
+     Bytef* dest,
+     const Bytef* source,
+     uInt  len)
+@@ -157,7 +157,7 @@
+     } while (--len != 0);
+ }
+ 
+-int ZLIB_INTERNAL zmemcmp(
++static int ZLIB_INTERNAL zmemcmp(
+     const Bytef* s1,
+     const Bytef* s2,
+     uInt  len)
+@@ -170,7 +170,7 @@
+     return 0;
+ }
+ 
+-void ZLIB_INTERNAL zmemzero(
++static void ZLIB_INTERNAL zmemzero(
+     Bytef* dest,
+     uInt  len)
+ {
+@@ -214,7 +214,7 @@
+  * a protected system like OS/2. Use Microsoft C instead.
+  */
+ 
+-voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
++static voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
+ {
+     voidpf buf;
+     ulg bsize = (ulg)items*size;
+@@ -240,7 +240,7 @@
+     return buf;
+ }
+ 
+-void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
++static void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
+ {
+     int n;
+ 
+@@ -277,13 +277,13 @@
+ #  define _hfree   hfree
+ #endif
+ 
+-voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size)
++static voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size)
+ {
+     (void)opaque;
+     return _halloc((long)items, size);
+ }
+ 
+-void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
++static void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
+ {
+     (void)opaque;
+     _hfree(ptr);
+@@ -302,7 +302,7 @@
+ extern void   free   OF((voidpf ptr));
+ #endif
+ 
+-voidpf ZLIB_INTERNAL zcalloc (
++static voidpf ZLIB_INTERNAL zcalloc (
+     voidpf opaque,
+     unsigned items,
+     unsigned size)
+@@ -312,7 +312,7 @@
+                               (voidpf)calloc(items, size);
+ }
+ 
+-void ZLIB_INTERNAL zcfree (
++static void ZLIB_INTERNAL zcfree (
+     voidpf opaque,
+     voidpf ptr)
+ {
+diff -ur freetype-2.12.1/src/gzip/zutil.h freetype-src/src/gzip/zutil.h
+--- freetype-2.12.1/src/gzip/zutil.h	Fri Apr 01 17:24:23 2022
++++ freetype-src/src/gzip/zutil.h	Sat May 07 14:13:48 2022
+@@ -13,11 +13,8 @@
+ #ifndef ZUTIL_H
+ #define ZUTIL_H
+ 
+-#ifdef HAVE_HIDDEN
+-#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+-#else
+-#  define ZLIB_INTERNAL
+-#endif
++/* we use "static" for all platforms */
++#define ZLIB_INTERNAL
+ 
+ #include "zlib.h"
+ 
+@@ -53,7 +50,7 @@
+ #  endif
+ #endif
+ 
+-extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
++static z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+ /* (size given to avoid silly warnings with Visual C++) */
+ 
+ #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
+@@ -235,16 +232,16 @@
+ #    define zmemzero(dest, len) ft_memset(dest, 0, len)
+ #  endif
+ #else
+-   void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
+-   int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
+-   void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
++   static void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
++   static int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
++   static void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
+ #endif
+ 
+ /* Diagnostic functions */
+ #ifdef ZLIB_DEBUG
+ #  include <stdio.h>
+-   extern int ZLIB_INTERNAL z_verbose;
+-   extern void ZLIB_INTERNAL z_error OF((char *m));
++   static int ZLIB_INTERNAL z_verbose;
++   static void ZLIB_INTERNAL z_error OF((char *m));
+ #  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
+ #  define Trace(x) {if (z_verbose>=0) fprintf x ;}
+ #  define Tracev(x) {if (z_verbose>0) fprintf x ;}
+@@ -261,9 +258,9 @@
+ #endif
+ 
+ #ifndef Z_SOLO
+-   voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
++   static voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
+                                     unsigned size));
+-   void ZLIB_INTERNAL zcfree  OF((voidpf opaque, voidpf ptr));
++   static void ZLIB_INTERNAL zcfree  OF((voidpf opaque, voidpf ptr));
+ #endif
+ 
+ #define ZALLOC(strm, items, size) \
Index: Build/source/libs/freetype2/TLpatches/patch-04-void-main
===================================================================
--- Build/source/libs/freetype2/TLpatches/patch-04-void-main	(nonexistent)
+++ Build/source/libs/freetype2/TLpatches/patch-04-void-main	(revision 64953)
@@ -0,0 +1,13 @@
+diff --git a/libs/freetype2/freetype-src/builds/unix/freetype2.m4 b/libs/freetype2/freetype-src/builds/unix/freetype2.m4
+index 0cafc8e8c..51843f5fa 100644
+--- a/libs/freetype2/freetype-src/builds/unix/freetype2.m4
++++ b/libs/freetype2/freetype-src/builds/unix/freetype2.m4
+@@ -121,7 +121,7 @@ AC_DEFUN([AC_CHECK_FT2],
+ #include <stdlib.h>
+ 
+ int
+-main()
++main(void)
+ {
+   FT_Library library;
+   FT_Error  error;
Index: Build/source/libs/freetype2/freetype-src/builds/unix/freetype2.m4
===================================================================
--- Build/source/libs/freetype2/freetype-src/builds/unix/freetype2.m4	(revision 64952)
+++ Build/source/libs/freetype2/freetype-src/builds/unix/freetype2.m4	(revision 64953)
@@ -121,7 +121,7 @@
 #include <stdlib.h>
 
 int
-main()
+main(void)
 {
   FT_Library library;
   FT_Error  error;
Index: Build/source/libs/gd/TLpatches/patch-03-void-main
===================================================================
--- Build/source/libs/gd/TLpatches/patch-03-void-main	(nonexistent)
+++ Build/source/libs/gd/TLpatches/patch-03-void-main	(revision 64953)
@@ -0,0 +1,13 @@
+diff --git a/libs/gd/libgd-src/tests/xpm/bug00185.c b/libs/gd/libgd-src/tests/xpm/bug00185.c
+index 3056ed950..37659d6a4 100644
+--- a/libs/gd/libgd-src/tests/xpm/bug00185.c
++++ b/libs/gd/libgd-src/tests/xpm/bug00185.c
+@@ -5,7 +5,7 @@
+ 
+ /* To check memory leaks, run such as 'valgrind --leak-check=full ./bug00185' */
+ int
+-main()
++main(void)
+ {
+ 	gdImagePtr im;
+ 	char *path;
Index: Build/source/libs/gd/libgd-src/tests/xpm/bug00185.c
===================================================================
--- Build/source/libs/gd/libgd-src/tests/xpm/bug00185.c	(revision 64952)
+++ Build/source/libs/gd/libgd-src/tests/xpm/bug00185.c	(revision 64953)
@@ -5,7 +5,7 @@
 
 /* To check memory leaks, run such as 'valgrind --leak-check=full ./bug00185' */
 int
-main()
+main(void)
 {
 	gdImagePtr im;
 	char *path;
Index: Build/source/texk/ps2pk/basename.c
===================================================================
--- Build/source/texk/ps2pk/basename.c	(revision 64952)
+++ Build/source/texk/ps2pk/basename.c	(revision 64953)
@@ -6,11 +6,12 @@
  * AUTHOR:  Piet Tutelaers
  * VERSION: 1.0 (Sept. 1995)
  */
+#include <stdlib.h>     /* exit() */
 #include <stdio.h>	/* printf() */
 #include "basics.h"	/* fatal() */
 #include "filenames.h"	/* basename() */
 
-main(int argc, char **argv)
+int main(int argc, char **argv)
 {
    if (argc < 2 || argc > 3) 
       fatal("Usage: basename string [suffix]\n");
Index: Build/source/utils/m-tx/mtx-src/prepmx.c
===================================================================
--- Build/source/utils/m-tx/mtx-src/prepmx.c	(revision 64952)
+++ Build/source/utils/m-tx/mtx-src/prepmx.c	(revision 64953)
@@ -769,7 +769,7 @@
 }
 
 
-main(int argc, Char *argv[])
+int main(int argc, Char *argv[])
 {  /* ---- Main program ------------------------ */
   PASCAL_MAIN(argc, argv);
   strcpy(this_version, version);
Index: Build/source/utils/pmx/TLpatches/patch-01-main-ret
===================================================================
--- Build/source/utils/pmx/TLpatches/patch-01-main-ret	(nonexistent)
+++ Build/source/utils/pmx/TLpatches/patch-01-main-ret	(revision 64953)
@@ -0,0 +1,13 @@
+diff --git a/utils/pmx/pmx-src/libf2c/main.c b/utils/pmx/pmx-src/libf2c/main.c
+index 453974904..f485a0cd0 100644
+--- a/utils/pmx/pmx-src/libf2c/main.c
++++ b/utils/pmx/pmx-src/libf2c/main.c
+@@ -106,7 +106,7 @@ char **xargv;
+ #ifdef KR_headers
+ main(argc, argv) int argc; char **argv;
+ #else
+-main(int argc, char **argv)
++int main(int argc, char **argv)
+ #endif
+ {
+ xargc = argc;
Index: Build/source/utils/pmx/pmx-src/libf2c/main.c
===================================================================
--- Build/source/utils/pmx/pmx-src/libf2c/main.c	(revision 64952)
+++ Build/source/utils/pmx/pmx-src/libf2c/main.c	(revision 64953)
@@ -106,7 +106,7 @@
 #ifdef KR_headers
 main(argc, argv) int argc; char **argv;
 #else
-main(int argc, char **argv)
+int main(int argc, char **argv)
 #endif
 {
 xargc = argc;