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-rw-r--r--src/3rdparty/freetype/src/gzip/patches/freetype-zlib.diff469
1 files changed, 469 insertions, 0 deletions
diff --git a/src/3rdparty/freetype/src/gzip/patches/freetype-zlib.diff b/src/3rdparty/freetype/src/gzip/patches/freetype-zlib.diff
new file mode 100644
index 0000000000..6ac76df62a
--- /dev/null
+++ b/src/3rdparty/freetype/src/gzip/patches/freetype-zlib.diff
@@ -0,0 +1,469 @@
+[zlib] Fix zlib sources for compilation with FreeType
+
+We must ensure that they do not issue compiler errors or warnings when they
+are compiled as part of `src/gzip/ftgzip.c`.
+
+* src/gzip/gzguts.h (COPY): Rename to...
+(COPY__): ... this since `COPY` and `COPY_` conflict with enum values,
+which have the same name in `zlib.h`.
+
+* src/gzip/inflate.c, src/gzip/adler32.c, src/gzip/crc32.c,
+src/gzip/zutil.c: Omit unused function declarations and definitions when
+`Z_FREETYPE` is defined.
+
+* src/gzip/inffast.h (inflate_fast): Declare as static.
+
+* src/gzip/inftrees.c (inflate_copyright): Declare as static.
+
+* src/gzip/zlib.h: Include `ftzconf.h` instead of `zconf.h` to avoid
+conflicts with system-installed headers.
+Omit unused function declarations when `Z_FREETYPE` is defined.
+(inflateInit2)[Z_FREETYPE]: Provide proper declaration.
+
+* src/gzip/zutil.h: Use `ft_memxxx` functions instead of `memxxx`.
+Omit unused function declarations when `Z_FREETYPE` is defined.
+
+* src/gzip/inflate.h, src/gzip/inftrees.h: Add header guard macros to
+prevent compiler errors.
+
+* src/gzip/inftrees.h: Add header guard macros to prevent compiler errors.
+(inflate_table): Declare as static.
+
+diff --git b/src/gzip/adler32.c a/src/gzip/adler32.c
+index be5e8a247..aa032e1dd 100644
+--- b/src/gzip/adler32.c
++++ a/src/gzip/adler32.c
+@@ -7,7 +7,9 @@
+
+ #include "zutil.h"
+
++#ifndef Z_FREETYPE
+ local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
++#endif
+
+ #define BASE 65521U /* largest prime smaller than 65536 */
+ #define NMAX 5552
+@@ -139,6 +141,8 @@ uLong ZEXPORT adler32(
+ return adler32_z(adler, buf, len);
+ }
+
++#ifndef Z_FREETYPE
++
+ /* ========================================================================= */
+ local uLong adler32_combine_(
+ uLong adler1,
+@@ -184,3 +188,5 @@ uLong ZEXPORT adler32_combine64(
+ {
+ return adler32_combine_(adler1, adler2, len2);
+ }
++
++#endif /* !Z_FREETYPE */
+diff --git b/src/gzip/crc32.c a/src/gzip/crc32.c
+index 3a52aa89d..6cd1b09d5 100644
+--- b/src/gzip/crc32.c
++++ a/src/gzip/crc32.c
+@@ -103,9 +103,11 @@
+ # define ARMCRC32
+ #endif
+
++#ifndef Z_FREETYPE
+ /* Local functions. */
+ local z_crc_t multmodp OF((z_crc_t a, z_crc_t b));
+ local z_crc_t x2nmodp OF((z_off64_t n, unsigned k));
++#endif /* Z_FREETYPE */
+
+ #if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE))
+ local z_word_t byte_swap OF((z_word_t word));
+@@ -544,6 +546,8 @@ local void braid(ltl, big, n, w)
+ * generation above.
+ */
+
++#ifndef Z_FREETYPE
++
+ /*
+ Return a(x) multiplied by b(x) modulo p(x), where p(x) is the CRC polynomial,
+ reflected. For speed, this requires that a not be zero.
+@@ -600,6 +604,8 @@ const z_crc_t FAR * ZEXPORT get_crc_table()
+ return (const z_crc_t FAR *)crc_table;
+ }
+
++#endif /* Z_FREETYPE */
++
+ /* =========================================================================
+ * Use ARM machine instructions if available. This will compute the CRC about
+ * ten times faster than the braided calculation. This code does not check for
+@@ -1077,6 +1083,8 @@ unsigned long ZEXPORT crc32(
+ return crc32_z(crc, buf, len);
+ }
+
++#ifndef Z_FREETYPE
++
+ /* ========================================================================= */
+ uLong ZEXPORT crc32_combine64(
+ uLong crc1,
+@@ -1123,3 +1131,5 @@ uLong ZEXPORT crc32_combine_op(
+ {
+ return multmodp(op, crc1) ^ (crc2 & 0xffffffff);
+ }
++
++#endif /* Z_FREETYPE */
+diff --git b/src/gzip/gzguts.h a/src/gzip/gzguts.h
+index 57faf3716..4f09a52a7 100644
+--- b/src/gzip/gzguts.h
++++ a/src/gzip/gzguts.h
+@@ -163,7 +163,7 @@
+
+ /* values for gz_state how */
+ #define LOOK 0 /* look for a gzip header */
+-#define COPY 1 /* copy input directly */
++#define COPY__ 1 /* copy input directly */
+ #define GZIP 2 /* decompress a gzip stream */
+
+ /* internal gzip file state data structure */
+diff --git b/src/gzip/inffast.h a/src/gzip/inffast.h
+index e5c1aa4ca..684ae878c 100644
+--- b/src/gzip/inffast.h
++++ a/src/gzip/inffast.h
+@@ -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 --git b/src/gzip/inflate.c a/src/gzip/inflate.c
+index c9e566b03..5117e2e26 100644
+--- b/src/gzip/inflate.c
++++ a/src/gzip/inflate.c
+@@ -99,8 +99,10 @@ local int updatewindow OF((z_streamp strm, const unsigned char FAR *end,
+ #ifdef BUILDFIXED
+ void makefixed OF((void));
+ #endif
++#ifndef Z_FREETYPE
+ local unsigned syncsearch OF((unsigned FAR *have, const unsigned char FAR *buf,
+ unsigned len));
++#endif
+
+ local int inflateStateCheck(
+ z_streamp strm)
+@@ -239,6 +241,8 @@ int ZEXPORT inflateInit2_(
+ return ret;
+ }
+
++#ifndef Z_FREETYPE
++
+ int ZEXPORT inflateInit_(
+ z_streamp strm,
+ const char *version,
+@@ -268,6 +272,8 @@ int ZEXPORT inflatePrime(
+ return Z_OK;
+ }
+
++#endif /* !Z_FREETYPE */
++
+ /*
+ Return state with length and distance decoding tables and index sizes set to
+ fixed code decoding. Normally this returns fixed tables from inffixed.h.
+@@ -1315,6 +1321,8 @@ int ZEXPORT inflateEnd(
+ return Z_OK;
+ }
+
++#ifndef Z_FREETYPE
++
+ int ZEXPORT inflateGetDictionary(
+ z_streamp strm,
+ Bytef *dictionary,
+@@ -1593,3 +1601,5 @@ unsigned long ZEXPORT inflateCodesUsed(
+ state = (struct inflate_state FAR *)strm->state;
+ return (unsigned long)(state->next - state->codes);
+ }
++
++#endif /* !Z_FREETYPE */
+diff --git b/src/gzip/inflate.h a/src/gzip/inflate.h
+index f127b6b1f..c6f5a52e1 100644
+--- b/src/gzip/inflate.h
++++ a/src/gzip/inflate.h
+@@ -3,6 +3,9 @@
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
++#ifndef INFLATE_H
++#define INFLATE_H
++
+ /* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+@@ -124,3 +127,5 @@ struct inflate_state {
+ int back; /* bits back of last unprocessed length/lit */
+ unsigned was; /* initial length of match */
+ };
++
++#endif /* INFLATE_H */
+diff --git b/src/gzip/inftrees.c a/src/gzip/inftrees.c
+index d8405a24c..dd4965e9a 100644
+--- b/src/gzip/inftrees.c
++++ a/src/gzip/inftrees.c
+@@ -8,7 +8,7 @@
+
+ #define MAXBITS 15
+
+-const char inflate_copyright[] =
++static const char inflate_copyright[] =
+ " inflate 1.2.13 Copyright 1995-2022 Mark Adler ";
+ /*
+ If you use the zlib library in a product, an acknowledgment is welcome
+diff --git b/src/gzip/inftrees.h a/src/gzip/inftrees.h
+index f53665311..a2207efb1 100644
+--- b/src/gzip/inftrees.h
++++ a/src/gzip/inftrees.h
+@@ -3,6 +3,9 @@
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
++#ifndef INFTREES_H
++#define INFTREES_H
++
+ /* WARNING: this file should *not* be used by applications. It is
+ part of the implementation of the compression library and is
+ subject to change. Applications should only use zlib.h.
+@@ -57,6 +60,8 @@ typedef enum {
+ 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));
++
++#endif /* INFTREES_H_ */
+diff --git b/src/gzip/zlib.h a/src/gzip/zlib.h
+index 953cb5012..3f2f76e3c 100644
+--- b/src/gzip/zlib.h
++++ a/src/gzip/zlib.h
+@@ -31,7 +31,7 @@
+ #ifndef ZLIB_H
+ #define ZLIB_H
+
+-#include "zconf.h"
++#include "ftzconf.h"
+
+ #ifdef __cplusplus
+ extern "C" {
+@@ -211,6 +211,8 @@ typedef gz_header FAR *gz_headerp;
+
+ #define Z_NULL 0 /* for initializing zalloc, zfree, opaque */
+
++#ifndef Z_FREETYPE
++
+ #define zlib_version zlibVersion()
+ /* for compatibility with versions < 1.0.2 */
+
+@@ -373,6 +375,7 @@ ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
+ deallocated).
+ */
+
++#endif /* !Z_FREETYPE */
+
+ /*
+ ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
+@@ -534,6 +537,8 @@ ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
+ The following functions are needed only in some special applications.
+ */
+
++#ifndef Z_FREETYPE
++
+ /*
+ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
+ int level,
+@@ -956,6 +961,8 @@ ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
+ destination.
+ */
+
++#endif /* !Z_FREETYPE */
++
+ ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
+ /*
+ This function is equivalent to inflateEnd followed by inflateInit,
+@@ -980,6 +987,8 @@ ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm,
+ the windowBits parameter is invalid.
+ */
+
++#ifndef Z_FREETYPE
++
+ ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm,
+ int bits,
+ int value));
+@@ -1069,6 +1078,8 @@ ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm,
+ stream state was inconsistent.
+ */
+
++#endif /* !Z_FREETYPE */
++
+ /*
+ ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
+ unsigned char FAR *window));
+@@ -1095,6 +1106,8 @@ typedef unsigned (*in_func) OF((void FAR *,
+ z_const unsigned char FAR * FAR *));
+ typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned));
+
++#ifndef Z_FREETYPE
++
+ ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
+ in_func in, void FAR *in_desc,
+ out_func out, void FAR *out_desc));
+@@ -1214,6 +1227,8 @@ ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
+ 27-31: 0 (reserved)
+ */
+
++#endif /* !Z_FREETYPE */
++
+ #ifndef Z_SOLO
+
+ /* utility functions */
+@@ -1765,6 +1780,8 @@ ZEXTERN uLong ZEXPORT crc32_combine_gen OF((z_off_t len2));
+ crc32_combine_op().
+ */
+
++#ifndef Z_FREETYPE
++
+ ZEXTERN uLong ZEXPORT crc32_combine_op OF((uLong crc1, uLong crc2, uLong op));
+ /*
+ Give the same result as crc32_combine(), using op in place of len2. op is
+@@ -1822,6 +1839,19 @@ ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
+ ZLIB_VERSION, (int)sizeof(z_stream))
+ #endif
+
++#else /* Z_FREETYPE */
++
++
++ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits,
++ const char *version, int stream_size));
++
++# define inflateInit2(strm, windowBits) \
++ inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
++ (int)sizeof(z_stream))
++
++#endif /* Z_FREETYPE */
++
++
+ #ifndef Z_SOLO
+
+ /* gzgetc() macro and its supporting function and exposed data structure. Note
+@@ -1901,20 +1931,25 @@ ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */
+
+ #else /* Z_SOLO */
+
++#ifndef Z_FREETYPE
+ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t));
+ ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
+ ZEXTERN uLong ZEXPORT crc32_combine_gen OF((z_off_t));
++#endif
+
+ #endif /* !Z_SOLO */
+
+ /* undocumented functions */
++#ifndef Z_FREETYPE
+ ZEXTERN const char * ZEXPORT zError OF((int));
+ ZEXTERN int ZEXPORT inflateSyncPoint OF((z_streamp));
+ ZEXTERN const z_crc_t FAR * ZEXPORT get_crc_table OF((void));
+ ZEXTERN int ZEXPORT inflateUndermine OF((z_streamp, int));
+ ZEXTERN int ZEXPORT inflateValidate OF((z_streamp, int));
+ ZEXTERN unsigned long ZEXPORT inflateCodesUsed OF((z_streamp));
++#endif /* !Z_FREETYPE */
+ ZEXTERN int ZEXPORT inflateResetKeep OF((z_streamp));
++#ifndef Z_FREETYPE
+ ZEXTERN int ZEXPORT deflateResetKeep OF((z_streamp));
+ #if defined(_WIN32) && !defined(Z_SOLO)
+ ZEXTERN gzFile ZEXPORT gzopen_w OF((const wchar_t *path,
+@@ -1927,6 +1962,7 @@ ZEXTERN int ZEXPORTVA gzvprintf Z_ARG((gzFile file,
+ va_list va));
+ # endif
+ #endif
++#endif /* !Z_FREETYPE */
+
+ #ifdef __cplusplus
+ }
+diff --git b/src/gzip/zutil.c a/src/gzip/zutil.c
+index ef174ca64..542706ca0 100644
+--- b/src/gzip/zutil.c
++++ a/src/gzip/zutil.c
+@@ -10,6 +10,8 @@
+ # include "gzguts.h"
+ #endif
+
++#ifndef Z_FREETYPE
++
+ 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 */
+@@ -138,6 +140,8 @@ const char * ZEXPORT zError(
+ return ERR_MSG(err);
+ }
+
++#endif /* !Z_FREETYPE */
++
+ #if defined(_WIN32_WCE) && _WIN32_WCE < 0x800
+ /* The older Microsoft C Run-Time Library for Windows CE doesn't have
+ * errno. We define it as a global variable to simplify porting.
+@@ -159,6 +163,8 @@ void ZLIB_INTERNAL zmemcpy(
+ } while (--len != 0);
+ }
+
++#ifndef Z_FREETYPE
++
+ int ZLIB_INTERNAL zmemcmp(
+ const Bytef* s1,
+ const Bytef* s2,
+@@ -181,6 +187,7 @@ void ZLIB_INTERNAL zmemzero(
+ *dest++ = 0; /* ??? to be unrolled */
+ } while (--len != 0);
+ }
++#endif /* !Z_FREETYPE */
+ #endif
+
+ #ifndef Z_SOLO
+diff --git b/src/gzip/zutil.h a/src/gzip/zutil.h
+index 0bc7f4ecd..055ba8b62 100644
+--- b/src/gzip/zutil.h
++++ a/src/gzip/zutil.h
+@@ -53,8 +53,10 @@ typedef unsigned long ulg;
+ # endif
+ #endif
+
++#ifndef Z_FREETYPE
+ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+ /* (size given to avoid silly warnings with Visual C++) */
++#endif /* !Z_FREETYPE */
+
+ #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
+
+@@ -188,6 +190,8 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+ #pragma warn -8066
+ #endif
+
++#ifndef Z_FREETYPE
++
+ /* provide prototypes for these when building zlib without LFS */
+ #if !defined(_WIN32) && \
+ (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
+@@ -196,6 +200,8 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+ ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off_t));
+ #endif
+
++#endif /* !Z_FREETYPE */
++
+ /* common defaults */
+
+ #ifndef OS_CODE
+@@ -227,9 +233,9 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+ # define zmemcmp _fmemcmp
+ # define zmemzero(dest, len) _fmemset(dest, 0, len)
+ # else
+-# define zmemcpy memcpy
+-# define zmemcmp memcmp
+-# define zmemzero(dest, len) memset(dest, 0, len)
++# define zmemcpy ft_memcpy
++# define zmemcmp ft_memcmp
++# define zmemzero(dest, len) ft_memset(dest, 0, len)
+ # endif
+ #else
+ void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));