summaryrefslogtreecommitdiff
path: root/target/linux/generic/patches-2.6.37/511-debloat_lzma.patch
blob: 18e4a51ee35b7226321708364bfa5466ab5c38cd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
--- a/include/linux/lzma/LzmaDec.h
+++ b/include/linux/lzma/LzmaDec.h
@@ -31,14 +31,6 @@ typedef struct _CLzmaProps
   UInt32 dicSize;
 } CLzmaProps;
 
-/* LzmaProps_Decode - decodes properties
-Returns:
-  SZ_OK
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-*/
-
-SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size);
-
 
 /* ---------- LZMA Decoder state ---------- */
 
@@ -70,8 +62,6 @@ typedef struct
 
 #define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; }
 
-void LzmaDec_Init(CLzmaDec *p);
-
 /* There are two types of LZMA streams:
      0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
      1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */
@@ -108,97 +98,6 @@ typedef enum
 
 /* ELzmaStatus is used only as output value for function call */
 
-
-/* ---------- Interfaces ---------- */
-
-/* There are 3 levels of interfaces:
-     1) Dictionary Interface
-     2) Buffer Interface
-     3) One Call Interface
-   You can select any of these interfaces, but don't mix functions from different
-   groups for same object. */
-
-
-/* There are two variants to allocate state for Dictionary Interface:
-     1) LzmaDec_Allocate / LzmaDec_Free
-     2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs
-   You can use variant 2, if you set dictionary buffer manually.
-   For Buffer Interface you must always use variant 1.
-
-LzmaDec_Allocate* can return:
-  SZ_OK
-  SZ_ERROR_MEM         - Memory allocation error
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-*/
-   
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc);
-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc);
-
-SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc);
-void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc);
-
-/* ---------- Dictionary Interface ---------- */
-
-/* You can use it, if you want to eliminate the overhead for data copying from
-   dictionary to some other external buffer.
-   You must work with CLzmaDec variables directly in this interface.
-
-   STEPS:
-     LzmaDec_Constr()
-     LzmaDec_Allocate()
-     for (each new stream)
-     {
-       LzmaDec_Init()
-       while (it needs more decompression)
-       {
-         LzmaDec_DecodeToDic()
-         use data from CLzmaDec::dic and update CLzmaDec::dicPos
-       }
-     }
-     LzmaDec_Free()
-*/
-
-/* LzmaDec_DecodeToDic
-   
-   The decoding to internal dictionary buffer (CLzmaDec::dic).
-   You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!!
-
-finishMode:
-  It has meaning only if the decoding reaches output limit (dicLimit).
-  LZMA_FINISH_ANY - Decode just dicLimit bytes.
-  LZMA_FINISH_END - Stream must be finished after dicLimit.
-
-Returns:
-  SZ_OK
-    status:
-      LZMA_STATUS_FINISHED_WITH_MARK
-      LZMA_STATUS_NOT_FINISHED
-      LZMA_STATUS_NEEDS_MORE_INPUT
-      LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
-  SZ_ERROR_DATA - Data error
-*/
-
-SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit,
-    const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
-
-
-/* ---------- Buffer Interface ---------- */
-
-/* It's zlib-like interface.
-   See LzmaDec_DecodeToDic description for information about STEPS and return results,
-   but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need
-   to work with CLzmaDec variables manually.
-
-finishMode:
-  It has meaning only if the decoding reaches output limit (*destLen).
-  LZMA_FINISH_ANY - Decode just destLen bytes.
-  LZMA_FINISH_END - Stream must be finished after (*destLen).
-*/
-
-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen,
-    const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
-
-
 /* ---------- One Call Interface ---------- */
 
 /* LzmaDecode
--- a/lib/lzma/LzmaDec.c
+++ b/lib/lzma/LzmaDec.c
@@ -682,7 +682,7 @@ static void LzmaDec_InitRc(CLzmaDec *p, 
   p->needFlush = 0;
 }
 
-void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
+static void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
 {
   p->needFlush = 1;
   p->remainLen = 0;
@@ -698,7 +698,7 @@ void LzmaDec_InitDicAndState(CLzmaDec *p
     p->needInitState = 1;
 }
 
-void LzmaDec_Init(CLzmaDec *p)
+static void LzmaDec_Init(CLzmaDec *p)
 {
   p->dicPos = 0;
   LzmaDec_InitDicAndState(p, True, True);
@@ -716,7 +716,7 @@ static void LzmaDec_InitStateReal(CLzmaD
   p->needInitState = 0;
 }
 
-SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen,
+static SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen,
     ELzmaFinishMode finishMode, ELzmaStatus *status)
 {
   SizeT inSize = *srcLen;
@@ -837,7 +837,7 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, Si
   return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA;
 }
 
-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
+static __maybe_unused SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
 {
   SizeT outSize = *destLen;
   SizeT inSize = *srcLen;
@@ -877,7 +877,7 @@ SRes LzmaDec_DecodeToBuf(CLzmaDec *p, By
   }
 }
 
-void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)
+static void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)
 {
   alloc->Free(alloc, p->probs);
   p->probs = 0;
@@ -889,13 +889,13 @@ static void LzmaDec_FreeDict(CLzmaDec *p
   p->dic = 0;
 }
 
-void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)
+static void __maybe_unused LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)
 {
   LzmaDec_FreeProbs(p, alloc);
   LzmaDec_FreeDict(p, alloc);
 }
 
-SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)
+static SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)
 {
   UInt32 dicSize;
   Byte d;
@@ -935,7 +935,7 @@ static SRes LzmaDec_AllocateProbs2(CLzma
   return SZ_OK;
 }
 
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
+static SRes __maybe_unused LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
 {
   CLzmaProps propNew;
   RINOK(LzmaProps_Decode(&propNew, props, propsSize));
@@ -944,7 +944,7 @@ SRes LzmaDec_AllocateProbs(CLzmaDec *p, 
   return SZ_OK;
 }
 
-SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
+static SRes __maybe_unused LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
 {
   CLzmaProps propNew;
   SizeT dicBufSize;
--- a/include/linux/lzma/LzmaEnc.h
+++ b/include/linux/lzma/LzmaEnc.h
@@ -31,9 +31,6 @@ typedef struct _CLzmaEncProps
 } CLzmaEncProps;
 
 void LzmaEncProps_Init(CLzmaEncProps *p);
-void LzmaEncProps_Normalize(CLzmaEncProps *p);
-UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);
-
 
 /* ---------- CLzmaEncHandle Interface ---------- */
 
@@ -53,26 +50,9 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc *
 void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);
 SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
 SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);
-SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
-    ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
 SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
     int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
 
-/* ---------- One Call Interface ---------- */
-
-/* LzmaEncode
-Return code:
-  SZ_OK               - OK
-  SZ_ERROR_MEM        - Memory allocation error
-  SZ_ERROR_PARAM      - Incorrect paramater
-  SZ_ERROR_OUTPUT_EOF - output buffer overflow
-  SZ_ERROR_THREAD     - errors in multithreading functions (only for Mt version)
-*/
-
-SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
-    const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
-    ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
-
 #ifdef __cplusplus
 }
 #endif
--- a/lib/lzma/LzmaEnc.c
+++ b/lib/lzma/LzmaEnc.c
@@ -53,7 +53,7 @@ void LzmaEncProps_Init(CLzmaEncProps *p)
   p->writeEndMark = 0;
 }
 
-void LzmaEncProps_Normalize(CLzmaEncProps *p)
+static void LzmaEncProps_Normalize(CLzmaEncProps *p)
 {
   int level = p->level;
   if (level < 0) level = 5;
@@ -76,7 +76,7 @@ void LzmaEncProps_Normalize(CLzmaEncProp
       #endif
 }
 
-UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
+static UInt32 __maybe_unused LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
 {
   CLzmaEncProps props = *props2;
   LzmaEncProps_Normalize(&props);
@@ -93,7 +93,7 @@ UInt32 LzmaEncProps_GetDictSize(const CL
 
 #define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); }
 
-UInt32 GetPosSlot1(UInt32 pos)
+static UInt32 GetPosSlot1(UInt32 pos)
 {
   UInt32 res;
   BSR2_RET(pos, res);
@@ -107,7 +107,7 @@ UInt32 GetPosSlot1(UInt32 pos)
 #define kNumLogBits (9 + (int)sizeof(size_t) / 2)
 #define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)
 
-void LzmaEnc_FastPosInit(Byte *g_FastPos)
+static void LzmaEnc_FastPosInit(Byte *g_FastPos)
 {
   int c = 2, slotFast;
   g_FastPos[0] = 0;
@@ -339,7 +339,7 @@ typedef struct
   CSaveState saveState;
 } CLzmaEnc;
 
-void LzmaEnc_SaveState(CLzmaEncHandle pp)
+static void __maybe_unused LzmaEnc_SaveState(CLzmaEncHandle pp)
 {
   CLzmaEnc *p = (CLzmaEnc *)pp;
   CSaveState *dest = &p->saveState;
@@ -365,7 +365,7 @@ void LzmaEnc_SaveState(CLzmaEncHandle pp
   memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb));
 }
 
-void LzmaEnc_RestoreState(CLzmaEncHandle pp)
+static void __maybe_unused LzmaEnc_RestoreState(CLzmaEncHandle pp)
 {
   CLzmaEnc *dest = (CLzmaEnc *)pp;
   const CSaveState *p = &dest->saveState;
@@ -600,7 +600,7 @@ static void LitEnc_EncodeMatched(CRangeE
   while (symbol < 0x10000);
 }
 
-void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
+static void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
 {
   UInt32 i;
   for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits))
@@ -1676,7 +1676,7 @@ static void FillDistancesPrices(CLzmaEnc
   p->matchPriceCount = 0;
 }
 
-void LzmaEnc_Construct(CLzmaEnc *p)
+static void LzmaEnc_Construct(CLzmaEnc *p)
 {
   RangeEnc_Construct(&p->rc);
   MatchFinder_Construct(&p->matchFinderBase);
@@ -1709,7 +1709,7 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc *
   return p;
 }
 
-void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
+static void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
 {
   alloc->Free(alloc, p->litProbs);
   alloc->Free(alloc, p->saveState.litProbs);
@@ -2074,7 +2074,7 @@ SRes LzmaEnc_MemPrepare(CLzmaEncHandle p
   return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
 }
 
-void LzmaEnc_Finish(CLzmaEncHandle pp)
+static void LzmaEnc_Finish(CLzmaEncHandle pp)
 {
   #ifndef _7ZIP_ST
   CLzmaEnc *p = (CLzmaEnc *)pp;
@@ -2108,7 +2108,7 @@ static size_t MyWrite(void *pp, const vo
 }
 
 
-UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
+static UInt32 __maybe_unused LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
 {
   const CLzmaEnc *p = (CLzmaEnc *)pp;
   return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
@@ -2120,7 +2120,7 @@ const Byte *LzmaEnc_GetCurBuf(CLzmaEncHa
   return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
 }
 
-SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
+static SRes __maybe_unused LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
     Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize)
 {
   CLzmaEnc *p = (CLzmaEnc *)pp;
@@ -2248,7 +2248,7 @@ SRes LzmaEnc_MemEncode(CLzmaEncHandle pp
   return res;
 }
 
-SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
+static __maybe_unused SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
     const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
     ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig)
 {
--- a/include/linux/lzma/LzFind.h
+++ b/include/linux/lzma/LzFind.h
@@ -55,11 +55,6 @@ typedef struct _CMatchFinder
 
 #define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
 
-int MatchFinder_NeedMove(CMatchFinder *p);
-Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
-void MatchFinder_MoveBlock(CMatchFinder *p);
-void MatchFinder_ReadIfRequired(CMatchFinder *p);
-
 void MatchFinder_Construct(CMatchFinder *p);
 
 /* Conditions:
@@ -70,12 +65,6 @@ int MatchFinder_Create(CMatchFinder *p, 
     UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
     ISzAlloc *alloc);
 void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems);
-void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
-
-UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,
-    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
-    UInt32 *distances, UInt32 maxLen);
 
 /*
 Conditions:
@@ -102,12 +91,6 @@ typedef struct _IMatchFinder
 
 void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
 
-void MatchFinder_Init(CMatchFinder *p);
-UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
-UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
-
 #ifdef __cplusplus
 }
 #endif
--- a/lib/lzma/LzFind.c
+++ b/lib/lzma/LzFind.c
@@ -42,12 +42,12 @@ static int LzInWindow_Create(CMatchFinde
   return (p->bufferBase != 0);
 }
 
-Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
-Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
+static Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
+static Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
 
-UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
+static UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
 
-void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue)
+static void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue)
 {
   p->posLimit -= subValue;
   p->pos -= subValue;
@@ -268,7 +268,7 @@ static void MatchFinder_SetLimits(CMatch
   p->posLimit = p->pos + limit;
 }
 
-void MatchFinder_Init(CMatchFinder *p)
+static void MatchFinder_Init(CMatchFinder *p)
 {
   UInt32 i;
   for (i = 0; i < p->hashSizeSum; i++)
@@ -287,7 +287,7 @@ static UInt32 MatchFinder_GetSubValue(CM
   return (p->pos - p->historySize - 1) & kNormalizeMask;
 }
 
-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
+static void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
 {
   UInt32 i;
   for (i = 0; i < numItems; i++)
@@ -350,7 +350,7 @@ static UInt32 * Hc_GetMatchesSpec(UInt32
   }
 }
 
-UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
+static UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
     UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
     UInt32 *distances, UInt32 maxLen)
 {
@@ -492,7 +492,7 @@ static UInt32 Bt2_MatchFinder_GetMatches
   GET_MATCHES_FOOTER(offset, 1)
 }
 
-UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
+static __maybe_unused UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
   UInt32 offset;
   GET_MATCHES_HEADER(3)
@@ -632,7 +632,7 @@ static UInt32 Hc4_MatchFinder_GetMatches
   MOVE_POS_RET
 }
 
-UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
+static __maybe_unused UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
 {
   UInt32 offset;
   GET_MATCHES_HEADER(3)
@@ -657,7 +657,7 @@ static void Bt2_MatchFinder_Skip(CMatchF
   while (--num != 0);
 }
 
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
+static __maybe_unused void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
 {
   do
   {
@@ -718,7 +718,7 @@ static void Hc4_MatchFinder_Skip(CMatchF
   while (--num != 0);
 }
 
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
+static __maybe_unused void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
 {
   do
   {