liblzma: Use lzma_attr_visibility_hidden on private extern declarations.

These variables are internal to liblzma and not exposed in the API.

(cherry picked from commit 33daad3961)

src/liblzma/check/check.h

@@ -99,10 +99,17 @@ typedef struct {
 /// lzma_crc32_table[0] is needed by LZ encoder so we need to keep
 /// the array two-dimensional.
 #ifdef HAVE_SMALL
+lzma_attr_visibility_hidden
 extern uint32_t lzma_crc32_table[1][256];
+
 extern void lzma_crc32_init(void);
+
 #else
+
+lzma_attr_visibility_hidden
 extern const uint32_t lzma_crc32_table[8][256];
+
+lzma_attr_visibility_hidden
 extern const uint64_t lzma_crc64_table[4][256];
 #endif
 

src/liblzma/common/stream_flags_common.h

@@ -18,7 +18,10 @@
 /// Size of the Stream Flags field
 #define LZMA_STREAM_FLAGS_SIZE 2
 
+lzma_attr_visibility_hidden
 extern const uint8_t lzma_header_magic[6];
+
+lzma_attr_visibility_hidden
 extern const uint8_t lzma_footer_magic[2];
 
 

src/liblzma/lz/lz_encoder_hash.h

@@ -17,6 +17,7 @@
 	// This is to make liblzma produce the same output on big endian
 	// systems that it does on little endian systems. lz_encoder.c
 	// takes care of including the actual table.
+	lzma_attr_visibility_hidden
 	extern const uint32_t lzma_lz_hash_table[256];
 #	define hash_table lzma_lz_hash_table
 #else

src/liblzma/lzma/fastpos.h

@@ -91,6 +91,7 @@ get_dist_slot_2(uint32_t dist)
 
 #define FASTPOS_BITS 13
 
+lzma_attr_visibility_hidden
 extern const uint8_t lzma_fastpos[1 << FASTPOS_BITS];
 
 

src/liblzma/rangecoder/price.h

@@ -22,6 +22,7 @@
 
 
 /// Lookup table for the inline functions defined in this file.
+lzma_attr_visibility_hidden
 extern const uint8_t lzma_rc_prices[RC_PRICE_TABLE_SIZE];