drop support for pre ISO-C compilers

This drops __signed, __volatile, and __const.  Only the latter was
used in the code base, and for uClibc, not consistently.  Much of
the code used plain "const" which meant "__const" was useless.

Really, the point of this is to stay in sync with what glibc did.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

108 files changed, 924 insertions, 936 deletions

diff --git a/include/arpa/inet.h b/include/arpa/inet.h
index 96c9af96f..4a90cf2cf 100644
--- a/include/arpa/inet.h
+++ b/include/arpa/inet.h
@@ -31,7 +31,7 @@ __BEGIN_DECLS
 
 /* Convert Internet host address from numbers-and-dots notation in CP
    into binary data in network byte order.  */
-extern in_addr_t inet_addr (__const char *__cp) __THROW;
+extern in_addr_t inet_addr (const char *__cp) __THROW;
 libc_hidden_proto(inet_addr)
 
 /* Return the local host address part of the Internet address in IN.  */
@@ -49,7 +49,7 @@ libc_hidden_proto(inet_netof)
 
 /* Extract the network number in network byte order from the address
    in numbers-and-dots natation starting at CP.  */
-extern in_addr_t inet_network (__const char *__cp) __THROW;
+extern in_addr_t inet_network (const char *__cp) __THROW;
 libc_hidden_proto(inet_network)
 
 /* Convert Internet number in IN to ASCII representation.  The return value
@@ -64,14 +64,14 @@ extern char *inet_ntoa_r (struct in_addr __in, char *__buf) __THROW;
 /* Convert from presentation format of an Internet number in buffer
    starting at CP to the binary network format and store result for
    interface type AF in buffer starting at BUF.  */
-extern int inet_pton (int __af, __const char *__restrict __cp,
+extern int inet_pton (int __af, const char *__restrict __cp,
 		      void *__restrict __buf) __THROW;
 libc_hidden_proto(inet_pton)
 
 /* Convert a Internet address in binary network format for interface
    type AF in buffer starting at CP to presentation form and place
    result in buffer of length LEN astarting at BUF.  */
-extern __const char *inet_ntop (int __af, __const void *__restrict __cp,
+extern const char *inet_ntop (int __af, const void *__restrict __cp,
 				char *__restrict __buf, socklen_t __len)
      __THROW;
 libc_hidden_proto(inet_ntop)
@@ -81,7 +81,7 @@ libc_hidden_proto(inet_ntop)
 #ifdef __USE_MISC
 /* Convert Internet host address from numbers-and-dots notation in CP
    into binary data and store the result in the structure INP.  */
-extern int inet_aton (__const char *__cp, struct in_addr *__inp) __THROW;
+extern int inet_aton (const char *__cp, struct in_addr *__inp) __THROW;
 libc_hidden_proto(inet_aton)
 
 #if 0
@@ -92,24 +92,24 @@ extern char *inet_neta (in_addr_t __net, char *__buf, size_t __len) __THROW;
 /* Convert network number for interface type AF in buffer starting at
    CP to presentation format.  The result will specifiy BITS bits of
    the number.  */
-extern char *inet_net_ntop (int __af, __const void *__cp, int __bits,
+extern char *inet_net_ntop (int __af, const void *__cp, int __bits,
 			    char *__buf, size_t __len) __THROW;
 
 /* Convert network number for interface type AF from presentation in
    buffer starting at CP to network format and store result int
    buffer starting at BUF of size LEN.  */
-extern int inet_net_pton (int __af, __const char *__cp,
+extern int inet_net_pton (int __af, const char *__cp,
 			  void *__buf, size_t __len) __THROW;
 
 /* Convert ASCII representation in hexadecimal form of the Internet
    address to binary form and place result in buffer of length LEN
    starting at BUF.  */
-extern unsigned int inet_nsap_addr (__const char *__cp,
+extern unsigned int inet_nsap_addr (const char *__cp,
 				    unsigned char *__buf, int __len) __THROW;
 
 /* Convert internet address in binary form in LEN bytes starting at CP
    a presentation form and place result in BUF.  */
-extern char *inet_nsap_ntoa (int __len, __const unsigned char *__cp,
+extern char *inet_nsap_ntoa (int __len, const unsigned char *__cp,
 			     char *__buf) __THROW;
 #endif
 #endif
diff --git a/include/assert.h b/include/assert.h
index 65159688f..ee8e85fa2 100644
--- a/include/assert.h
+++ b/include/assert.h
@@ -71,7 +71,7 @@ __END_DECLS
 #  if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
 #   define __ASSERT_FUNCTION	__func__
 #  else
-#   define __ASSERT_FUNCTION	((__const char *) 0)
+#   define __ASSERT_FUNCTION	((const char *) 0)
 #  endif
 # endif
 
diff --git a/include/crypt.h b/include/crypt.h
index 563f9b0fc..825e7eb57 100644
--- a/include/crypt.h
+++ b/include/crypt.h
@@ -25,11 +25,11 @@ __BEGIN_DECLS
 
 /* Encrypt characters from KEY using salt to perturb the encryption method.
  * If salt begins with "$1$", MD5 hashing is used instead of DES. */
-extern char *crypt (__const char *__key, __const char *__salt)
+extern char *crypt (const char *__key, const char *__salt)
      __THROW __nonnull ((1, 2));
 
 /* Setup DES tables according KEY.  */
-extern void setkey (__const char *__key) __THROW __nonnull ((1));
+extern void setkey (const char *__key) __THROW __nonnull ((1));
 
 /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
    block in place.  */
diff --git a/include/dirent.h b/include/dirent.h
index ff59b6b0a..00aa0773e 100644
--- a/include/dirent.h
+++ b/include/dirent.h
@@ -131,7 +131,7 @@ typedef struct __dirstream DIR;
 
    This function is a possible cancellation point and therefore not
    marked with __THROW.  */
-extern DIR *opendir (__const char *__name) __nonnull ((1));
+extern DIR *opendir (const char *__name) __nonnull ((1));
 libc_hidden_proto(opendir)
 
 #ifdef __USE_XOPEN2K8
@@ -255,20 +255,20 @@ libc_hidden_proto(dirfd)
    sorted using qsort with CMP, and collected in a malloc'd array in
    *NAMELIST.  Returns the number of entries selected, or -1 on error.  */
 # ifndef __USE_FILE_OFFSET64
-extern int scandir (__const char *__restrict __dir,
+extern int scandir (const char *__restrict __dir,
 		    struct dirent ***__restrict __namelist,
-		    int (*__selector) (__const struct dirent *),
-		    int (*__cmp) (__const struct dirent **,
-				  __const struct dirent **))
+		    int (*__selector) (const struct dirent *),
+		    int (*__cmp) (const struct dirent **,
+				  const struct dirent **))
      __nonnull ((1, 2));
 # else
 #  ifdef __REDIRECT
 extern int __REDIRECT (scandir,
-		       (__const char *__restrict __dir,
+		       (const char *__restrict __dir,
 			struct dirent ***__restrict __namelist,
-			int (*__selector) (__const struct dirent *),
-			int (*__cmp) (__const struct dirent **,
-				      __const struct dirent **)),
+			int (*__selector) (const struct dirent *),
+			int (*__cmp) (const struct dirent **,
+				      const struct dirent **)),
 		       scandir64) __nonnull ((1, 2));
 #  else
 #   define scandir scandir64
@@ -278,24 +278,24 @@ extern int __REDIRECT (scandir,
 # if defined __USE_GNU && defined __USE_LARGEFILE64
 /* This function is like `scandir' but it uses the 64bit dirent structure.
    Please note that the CMP function must now work with struct dirent64 **.  */
-extern int scandir64 (__const char *__restrict __dir,
+extern int scandir64 (const char *__restrict __dir,
 		      struct dirent64 ***__restrict __namelist,
-		      int (*__selector) (__const struct dirent64 *),
-		      int (*__cmp) (__const struct dirent64 **,
-				    __const struct dirent64 **))
+		      int (*__selector) (const struct dirent64 *),
+		      int (*__cmp) (const struct dirent64 **,
+				    const struct dirent64 **))
      __nonnull ((1, 2));
 # endif
 
 /* Function to compare two `struct dirent's alphabetically.  */
 # ifndef __USE_FILE_OFFSET64
-extern int alphasort (__const struct dirent **__e1,
-		      __const struct dirent **__e2)
+extern int alphasort (const struct dirent **__e1,
+		      const struct dirent **__e2)
      __THROW __attribute_pure__ __nonnull ((1, 2));
 # else
 #  ifdef __REDIRECT
 extern int __REDIRECT_NTH (alphasort,
-			   (__const struct dirent **__e1,
-			    __const struct dirent **__e2),
+			   (const struct dirent **__e1,
+			    const struct dirent **__e2),
 			   alphasort64) __attribute_pure__ __nonnull ((1, 2));
 #  else
 #   define alphasort alphasort64
@@ -303,8 +303,8 @@ extern int __REDIRECT_NTH (alphasort,
 # endif
 
 # if defined __USE_GNU && defined __USE_LARGEFILE64
-extern int alphasort64 (__const struct dirent64 **__e1,
-			__const struct dirent64 **__e2)
+extern int alphasort64 (const struct dirent64 **__e1,
+			const struct dirent64 **__e2)
      __THROW __attribute_pure__ __nonnull ((1, 2));
 # endif
 #endif /* Use BSD or misc or XPG7.  */
@@ -343,14 +343,14 @@ extern __ssize_t getdirentries64 (int __fd, char *__restrict __buf,
 #ifdef __USE_GNU
 /* Function to compare two `struct dirent's by name & version.  */
 # ifndef __USE_FILE_OFFSET64
-extern int versionsort (__const struct dirent **__e1,
-			__const struct dirent **__e2)
+extern int versionsort (const struct dirent **__e1,
+			const struct dirent **__e2)
      __THROW __attribute_pure__ __nonnull ((1, 2));
 # else
 #  ifdef __REDIRECT
 extern int __REDIRECT_NTH (versionsort,
-			   (__const struct dirent **__e1,
-			    __const struct dirent **__e2),
+			   (const struct dirent **__e1,
+			    const struct dirent **__e2),
 			   versionsort64)