Bug#45288: pb2 returns a lot of compilation warnings on linux

Fix assorted compiler warnings on Mac OS X.

BUILD/SETUP.sh:
  Remove -Wctor-dtor-privacy flag to workaround a GCC bug that
  causes it to not properly detect that implicitly generated
  constructors are always public.
cmd-line-utils/readline/terminal.c:
  tgetnum and tgetflag might not take a const string argument.
mysys/my_gethostbyname.c:
  Tag unused arguments.
mysys/my_sync.c:
  Tag unused arguments.

1 files changed, 26 insertions, 6 deletions

diff --git a/mysys/my_sync.c b/mysys/my_sync.c
index 97540f5eb48..d6ca4f1c1df 100644
--- a/mysys/my_sync.c
+++ b/mysys/my_sync.c
@@ -89,6 +89,8 @@ int my_sync(File fd, myf my_flags)
 
 
 static const char cur_dir_name[]= {FN_CURLIB, 0};
+
+
 /*
   Force directory information to disk.
 
@@ -100,9 +102,11 @@ static const char cur_dir_name[]= {FN_CURLIB, 0};
   RETURN
     0 if ok, !=0 if error
 */
+
+#ifdef NEED_EXPLICIT_SYNC_DIR
+
 int my_sync_dir(const char *dir_name, myf my_flags)
 {
-#ifdef NEED_EXPLICIT_SYNC_DIR
   File dir_fd;
   int res= 0;
   const char *correct_dir_name;
@@ -124,11 +128,18 @@ int my_sync_dir(const char *dir_name, myf my_flags)
   else
     res= 1;
   DBUG_RETURN(res);
-#else
+}
+
+#else /* NEED_EXPLICIT_SYNC_DIR */
+
+int my_sync_dir(const char *dir_name __attribute__((unused)),
+                myf my_flags __attribute__((unused)))
+{
   return 0;
-#endif
 }
 
+#endif /* NEED_EXPLICIT_SYNC_DIR */
+
 
 /*
   Force directory information to disk.
@@ -141,15 +152,24 @@ int my_sync_dir(const char *dir_name, myf my_flags)
   RETURN
     0 if ok, !=0 if error
 */
+
+#ifdef NEED_EXPLICIT_SYNC_DIR
+
 int my_sync_dir_by_file(const char *file_name, myf my_flags)
 {
-#ifdef NEED_EXPLICIT_SYNC_DIR
   char dir_name[FN_REFLEN];
   size_t dir_name_length;
   dirname_part(dir_name, file_name, &dir_name_length);
   return my_sync_dir(dir_name, my_flags);
-#else
+}
+
+#else /* NEED_EXPLICIT_SYNC_DIR */
+
+int my_sync_dir_by_file(const char *file_name __attribute__((unused)),
+                        myf my_flags __attribute__((unused)))
+{
   return 0;
-#endif
 }
 
+#endif /* NEED_EXPLICIT_SYNC_DIR */
+