fixed two compiling bugs for libedit

acinclude.m4:
  added macro to check if dirent.d_namlen is defined
cmd-line-utils/libedit/config.h:
  added define for __attribute__
cmd-line-utils/libedit/readline.c:
  checked STRUCT_DIRENT_HAS_D_NAMLEN instead of
  old enumeration of problem platforms
configure.in:
  added checking if dirent has d_namlen member field

acinclude.m4

@@ -665,6 +665,41 @@ AC_DEFINE(STRUCT_DIRENT_HAS_D_INO, [1],
 fi
 ])
 
+AC_DEFUN(MYSQL_STRUCT_DIRENT_D_NAMLEN,
+[AC_REQUIRE([AC_HEADER_DIRENT])
+AC_MSG_CHECKING(if struct dirent has a d_namlen member)
+AC_CACHE_VAL(mysql_cv_dirent_has_dnamlen,
+[AC_TRY_COMPILE([
+#include <stdio.h>
+#include <sys/types.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+#if defined(HAVE_DIRENT_H)
+# include <dirent.h>
+#else
+# define dirent direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif /* SYSNDIR */
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif /* SYSDIR */
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif
+#endif /* HAVE_DIRENT_H */
+],[
+struct dirent d; int z; z = (int)d.d_namlen;
+], mysql_cv_dirent_has_dnamlen=yes, mysql_cv_dirent_has_dnamlen=no)])
+AC_MSG_RESULT($mysql_cv_dirent_has_dnamlen)
+if test "$mysql_cv_dirent_has_dnamlen" = "yes"; then
+AC_DEFINE(STRUCT_DIRENT_HAS_D_NAMLEN, [1],
+          [d_namlen member present in struct dirent])
+fi
+])
+
+
 AC_DEFUN(MYSQL_TYPE_SIGHANDLER,
 [AC_MSG_CHECKING([whether signal handlers are of type void])
 AC_CACHE_VAL(mysql_cv_void_sighandler,

cmd-line-utils/libedit/config.h

@@ -6,3 +6,9 @@
 #define __COPYRIGHT(x)
 #define __RENAME(x)
 #define _DIAGASSERT(x)
+
+#if !defined(__attribute__) && (defined(__cplusplus) || !defined(__GNUC__)  || __GNUC__ == 2 && __GNUC_MINOR__ < 8)
+#define __attribute__(A)
+#endif
+
+

cmd-line-utils/libedit/readline.c

@@ -1345,7 +1345,7 @@ filename_completion_function(const char *text, int state)
 		/* otherwise, get first entry where first */
 		/* filename_len characters are equal	  */
 		if (entry->d_name[0] == filename[0]
-#if defined(__SVR4) || defined(__linux__)
+#ifndef STRUCT_DIRENT_HAS_D_NAMLEN
 		    && strlen(entry->d_name) >= filename_len
 #else
 		    && entry->d_namlen >= filename_len
@@ -1358,7 +1358,7 @@ filename_completion_function(const char *text, int state)
 	if (entry) {		/* match found */
 
 		struct stat stbuf;
-#if defined(__SVR4) || defined(__linux__)
+#ifndef STRUCT_DIRENT_HAS_D_NAMLEN
 		len = strlen(entry->d_name) +
 #else
 		len = entry->d_namlen +

configure.in

@@ -1865,6 +1865,7 @@ MYSQL_HAVE_TIOCGWINSZ
 MYSQL_HAVE_FIONREAD
 MYSQL_HAVE_TIOCSTAT
 MYSQL_STRUCT_DIRENT_D_INO
+MYSQL_STRUCT_DIRENT_D_NAMLEN
 MYSQL_TYPE_SIGHANDLER
 if test "$with_named_curses" = "no"
 then