Bug#30296

"Dynamic plugins fail to load on FreeBSD"
  ELF executables need to be linked using the -export-dynamic option to
  ld(1) for symbols defined in the executable to become visible to dlsym().
  Also, do not build plugins on an all-static build.


configure.in:
  Bug#30296
    Use "-export-dynamic" when building executable for use with plugins.
    Add required option using MYSQLD_EXTRA_LDFLAGS variable so we do not
    affect any other binary.
config/ac-macros/plugins.m4:
  Do not build plugins when building all-static
sql/sql_yacc.yy:
  build fix - surplus semicolon

config/ac-macros/plugins.m4

@@ -360,6 +360,17 @@ AC_DEFUN([__MYSQL_EMIT_CHECK_PLUGIN],[
      AC_MSG_ERROR([cannot disable mandatory plugin])
    fi
    [mysql_plugin_]$2=yes
+  ],[
+   case "$with_mysqld_ldflags " in
+     *"-all-static "*)
+       # No need to build shared plugins when mysqld is linked with
+       # -all-static as it won't be able to load them.
+       if test "X[$mysql_plugin_]$2" != Xyes -a \
+               "X[$with_plugin_]$2" != Xyes; then
+	     [with_plugin_]$2=no
+	   fi
+     ;;
+   esac
   ])
   if test "X[$with_plugin_]$2" = Xno; then
     AC_MSG_RESULT([no])

configure.in

@@ -1745,7 +1745,18 @@ then
   LDFLAGS="$LDFLAGS -rdynamic"
   AC_MSG_RESULT("-rdynamic")
 else
-  AC_MSG_RESULT("none")
+  case "$SYSTEM_TYPE$with_mysqld_ldflags " in
+  *freebsd*"-all-static "*|*dragonfly*"-all-static "*)
+    AC_MSG_RESULT("none")
+    ;;
+  *freebsd*|*dragonfly*)
+    MYSQLD_EXTRA_LDFLAGS="$MYSQLD_EXTRA_LDFLAGS -export-dynamic"
+    AC_MSG_RESULT("-export-dynamic")
+    ;;
+  *)
+    AC_MSG_RESULT("none")
+    ;;
+  esac
 fi
 
 dnl Checks for typedefs, structures, and compiler characteristics.

sql/sql_yacc.yy

@@ -6492,7 +6492,7 @@ bool_pri:
           { $$= (*$2)(0)->create($1,$3); }
         | bool_pri comp_op all_or_any '(' subselect ')' %prec EQ
           { $$= all_any_subquery_creator($1, $2, $3, $5); }
-        | predicate ;
+        | predicate
         ;
 
 predicate: