Remove _Hide keyword

It never did anything and isn't worthwhile as documentation.

third_party/dlmalloc/dlmalloc.h

@@ -505,8 +505,8 @@ void mspace_inspect_all(mspace msp,
                         void (*handler)(void*, void*, size_t, void*),
                         void* arg);
 
-_Hide void dlmalloc_atfork(void);
-_Hide void dlmalloc_abort(void);
+void dlmalloc_atfork(void);
+void dlmalloc_abort(void);
 
 COSMOPOLITAN_C_END_
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */

third_party/gdtoa/gdtoa.internal.h

@@ -348,13 +348,13 @@ typedef struct ThInfo {
 #define Bcopy(x, y) \
   memcpy(&x->sign, &y->sign, y->wds * sizeof(ULong) + 2 * sizeof(int))
 
-_Hide extern const double __gdtoa_tens[];
-_Hide extern const double __gdtoa_bigtens[];
-_Hide extern const double __gdtoa_tinytens[];
-_Hide extern const unsigned char __gdtoa_hexdig[];
-_Hide extern const char *const __gdtoa_InfName[6];
-_Hide extern const char *const __gdtoa_NanName[3];
-_Hide extern const ULong __gdtoa_NanDflt_Q[4];
+extern const double __gdtoa_tens[];
+extern const double __gdtoa_bigtens[];
+extern const double __gdtoa_tinytens[];
+extern const unsigned char __gdtoa_hexdig[];
+extern const char *const __gdtoa_InfName[6];
+extern const char *const __gdtoa_NanName[3];
+extern const ULong __gdtoa_NanDflt_Q[4];
 
 Bigint *__gdtoa_Balloc(int, ThInfo **);
 void __gdtoa_Bfree(Bigint *, ThInfo **);

third_party/musl/crypt_des.internal.h

@@ -9,8 +9,8 @@ struct expanded_key {
 	uint32_t l[16], r[16];
 };
 
-_Hide void __des_setkey(const unsigned char *, struct expanded_key *);
-_Hide void __do_des(uint32_t, uint32_t, uint32_t *, uint32_t *,
+ void __des_setkey(const unsigned char *, struct expanded_key *);
+ void __do_des(uint32_t, uint32_t, uint32_t *, uint32_t *,
                      uint32_t, uint32_t, const struct expanded_key *);
 
 #endif

third_party/regex/tre.inc

@@ -143,13 +143,13 @@ struct tnfa_transition {
 };
 
 /* Assertions. */
-#define ASSERT_AT_BOL         1 /* Beginning of line. */
-#define ASSERT_AT_EOL         2 /* End of line. */
-#define ASSERT_CHAR_CLASS     4 /* Character class in `class'. */
-#define ASSERT_CHAR_CLASS_NEG 8 /* Character classes in `neg_classes'. */
-#define ASSERT_AT_BOW         16 /* Beginning of word. */
-#define ASSERT_AT_EOW         32 /* End of word. */
-#define ASSERT_AT_WB          64 /* Word boundary. */
+#define ASSERT_AT_BOL         1   /* Beginning of line. */
+#define ASSERT_AT_EOL         2   /* End of line. */
+#define ASSERT_CHAR_CLASS     4   /* Character class in `class'. */
+#define ASSERT_CHAR_CLASS_NEG 8   /* Character classes in `neg_classes'. */
+#define ASSERT_AT_BOW         16  /* Beginning of word. */
+#define ASSERT_AT_EOW         32  /* End of word. */
+#define ASSERT_AT_WB          64  /* Word boundary. */
 #define ASSERT_AT_WB_NEG      128 /* Not a word boundary. */
 #define ASSERT_BACKREF        256 /* A back reference in `backref'. */
 #define ASSERT_LAST           256
@@ -215,9 +215,9 @@ typedef struct tre_mem_struct {
 #define tre_mem_alloc_impl __tre_mem_alloc_impl
 #define tre_mem_destroy    __tre_mem_destroy
 
-tre_mem_t tre_mem_new_impl(int provided, void *provided_block) _Hide;
+tre_mem_t tre_mem_new_impl(int provided, void *provided_block);
 void *tre_mem_alloc_impl(tre_mem_t mem, int provided, void *provided_block,
-                         int zero, size_t size) _Hide;
+                         int zero, size_t size);
 
 /* Returns a new memory allocator or NULL if out of memory. */
 #define tre_mem_new() tre_mem_new_impl(0, NULL)
@@ -245,4 +245,4 @@ void *tre_mem_alloc_impl(tre_mem_t mem, int provided, void *provided_block,
 #endif /* TRE_USE_ALLOCA */
 
 /* Frees the memory allocator and all memory allocated with it. */
-_Hide void tre_mem_destroy(tre_mem_t mem);
+void tre_mem_destroy(tre_mem_t mem);

third_party/zlib/cpu_features.internal.h

@@ -14,9 +14,9 @@ COSMOPOLITAN_C_START_
 #elif defined(__aarch64__)
 
 #define cpu_check_features zlib_cpu_check_features
-_Hide extern int arm_cpu_enable_crc32;
-_Hide extern int arm_cpu_enable_pmull;
-_Hide void cpu_check_features(void);
+extern int arm_cpu_enable_crc32;
+extern int arm_cpu_enable_pmull;
+void cpu_check_features(void);
 
 #endif
 COSMOPOLITAN_C_END_

third_party/zlib/inffast.internal.h

@@ -20,7 +20,7 @@ COSMOPOLITAN_C_START_
  */
 #define INFLATE_FAST_MIN_OUTPUT 258
 
-void inflate_fast(z_streamp strm, unsigned start) _Hide;
+void inflate_fast(z_streamp strm, unsigned start);
 
 COSMOPOLITAN_C_END_
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */

third_party/zlib/internal.h

@@ -13,18 +13,18 @@ COSMOPOLITAN_C_START_
 #define zmemzero bzero
 #define zmemcpy  memmove
 
-unsigned deflate_read_buf(z_streamp, Bytef *, unsigned) _Hide;
-void copy_with_crc(z_streamp, Bytef *, long) _Hide;
-void crc_finalize(deflate_state *const) _Hide;
-void crc_reset(deflate_state *const) _Hide;
-uint32_t adler32_simd_(uint32_t, const unsigned char *, size_t) _Hide;
-void crc_fold_init(deflate_state *const) _Hide;
+unsigned deflate_read_buf(z_streamp, Bytef *, unsigned);
+void copy_with_crc(z_streamp, Bytef *, long);
+void crc_finalize(deflate_state *const);
+void crc_reset(deflate_state *const);
+uint32_t adler32_simd_(uint32_t, const unsigned char *, size_t);
+void crc_fold_init(deflate_state *const);
 void crc_fold_copy(deflate_state *const, unsigned char *, const unsigned char *,
-                   long) _Hide;
-unsigned crc_fold_512to32(deflate_state *const) _Hide;
-void fill_window_sse(deflate_state *) _Hide;
-void *zcalloc(void *, uInt, uInt) _Hide;
-void zcfree(void *, void *) _Hide;
+                   long);
+unsigned crc_fold_512to32(deflate_state *const);
+void fill_window_sse(deflate_state *);
+void *zcalloc(void *, uInt, uInt);
+void zcfree(void *, void *);
 
 COSMOPOLITAN_C_END_
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */

third_party/zlib/treeconst.c

@@ -1,12 +1,12 @@
 /* header created automatically with -DGEN_TREES_H */
 #include "third_party/zlib/internal.h"
 
-_Hide const int kZlibBaseLength[LENGTH_CODES] = {
+const int kZlibBaseLength[LENGTH_CODES] = {
     0,  1,  2,  3,  4,  5,  6,  7,  8,   10,  12,  14,  16,  20, 24,
     28, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 0,
 };
 
-_Hide const int kZlibBaseDist[D_CODES] = {
+const int kZlibBaseDist[D_CODES] = {
     0,    1,    2,    3,    4,    6,    8,    12,    16,    24,
     32,   48,   64,   96,   128,  192,  256,  384,   512,   768,
     1024, 1536, 2048, 3072, 4096, 6144, 8192, 12288, 16384, 24576,

third_party/zlib/zutil.internal.h

@@ -38,7 +38,7 @@ COSMOPOLITAN_C_START_
    define "local" for the non-static meaning of "static", for readability
    (compile with -Dlocal if your debugger can't find static symbols) */
 
-extern const char *const z_errmsg[10] _Hide; /* indexed by 2-zlib_error */
+extern 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)]
@@ -52,8 +52,8 @@ extern const char *const z_errmsg[10] _Hide; /* indexed by 2-zlib_error */
 
 /* Diagnostic functions */
 #ifdef ZLIB_DEBUG
-extern int z_verbose _Hide;
-extern void z_error(const char *, int, char *) _Hide;
+extern int z_verbose;
+extern void z_error(const char *, int, char *);
 #define Assert(cond, msg)               \
   {                                     \
     if (!(cond)) {                      \