Bug#38293 Libmysqld crash in mysql_library_init if language file missing

    That's a Win-specific error.
    When we create libmysqld.dll we have many libraries like mysys, dbug,
    strings, etc linked into that dll, so the application built upon
    this library shouldn't link these libraries to itself, rather use
    those inside the dll.

    Fixed by redirecting calls into the libmysqld.dll

per-file comments:
  dbug/dbug.c
Bug#38293 Libmysqld crash in mysql_library_init if language file missing
    fake _db_something definitions added

  include/my_dbug.h
Bug#38293 Libmysqld crash in mysql_library_init if language file missing
  fake _db_something declarations added

  libmysqld/examples/CMakeLists.txt
Bug#38293 Libmysqld crash in mysql_library_init if language file missing
    superfluous libraries removed from linking

  libmysqld/libmysqld.def
Bug#38293 Libmysqld crash in mysql_library_init if language file missing
    set of mysys functions added to the export section

2 files changed, 63 insertions, 3 deletions

diff --git a/libmysqld/examples/CMakeLists.txt b/libmysqld/examples/CMakeLists.txt
index a07d089c757..ca383d59b24 100644
--- a/libmysqld/examples/CMakeLists.txt
+++ b/libmysqld/examples/CMakeLists.txt
@@ -29,13 +29,13 @@ ADD_DEFINITIONS(-DEMBEDDED_LIBRARY)
 ADD_EXECUTABLE(mysql_embedded ../../client/completion_hash.cc
                ../../client/mysql.cc ../../client/readline.cc
                ../../client/sql_string.cc)
-TARGET_LINK_LIBRARIES(mysql_embedded mysys yassl taocrypt zlib debug dbug regex strings wsock32)
+TARGET_LINK_LIBRARIES(mysql_embedded debug wsock32)
 ADD_DEPENDENCIES(mysql_embedded libmysqld)
 
 ADD_EXECUTABLE(mysqltest_embedded ../../client/mysqltest.c)
-TARGET_LINK_LIBRARIES(mysqltest_embedded mysys yassl taocrypt zlib debug dbug regex strings wsock32)
+TARGET_LINK_LIBRARIES(mysqltest_embedded debug wsock32)
 ADD_DEPENDENCIES(mysqltest_embedded libmysqld)
 
 ADD_EXECUTABLE(mysql_client_test_embedded ../../tests/mysql_client_test.c)
-TARGET_LINK_LIBRARIES(mysql_client_test_embedded debug dbug mysys yassl taocrypt zlib strings wsock32)
+TARGET_LINK_LIBRARIES(mysql_client_test_embedded debug wsock32)
 ADD_DEPENDENCIES(mysql_client_test_embedded libmysqld)
diff --git a/libmysqld/libmysqld.def b/libmysqld/libmysqld.def
index 2aa75c0b23c..431c0efdaa0 100644
--- a/libmysqld/libmysqld.def
+++ b/libmysqld/libmysqld.def
@@ -2,6 +2,66 @@ LIBRARY		LIBMYSQLD
 DESCRIPTION	'MySQL 5.1 Embedded Server Library'
 VERSION		5.1
 EXPORTS
+	_db_process_
+	_db_enter_
+	_db_return_
+	_db_push_
+	_db_doprnt_
+	_db_pargs_
+	strnmov
+	get_charset
+	my_memmem
+	my_snprintf
+	pthread_exit
+	pthread_cond_signal
+	dynstr_append_mem
+	init_dynamic_string
+	dynstr_free
+	hash_free
+	my_vsnprintf
+	dynstr_append
+	my_close
+	my_open
+	dynstr_set
+	dynstr_append_os_quoted
+	my_delete
+	my_seek
+	my_write
+	create_temp_file
+	fn_format
+	dirname_part
+	my_hash_insert
+	hash_search
+	test_if_hard_path
+	my_copy
+	my_mkdir
+	my_sleep
+	my_strtod
+	pthread_cond_wait
+	my_strnncoll_simple
+	get_dynamic
+	my_regerror
+	init_dynamic_array2
+	pthread_create
+	pthread_cond_init
+	my_regcomp
+	my_regexec
+	my_regex_end
+	my_regfree
+	longlong2str
+	my_set_exception_pointers
+	my_print_stacktrace
+	my_thread_stack_size
+	my_safe_print_str
+	my_stat
+	_hash_init
+	pthread_attr_setstacksize
+	pthread_attr_init
+	my_dirend
+	wild_compare
+	my_dir
+	my_micro_time
+	find_type_or_exit
 	_dig_vec_upper
 	_dig_vec_lower
 	bmove_upp