WORDS_BIGENDIAN was wrongly defined to 1

and later

in errmsg.txt. Kept the one in that matched the location
in errmsg-utf8.txt, ie after ER_UNKNOWN_LOCALE.

boolean variables to ensure option is in cache. Also use documented CMAKE_USE_MAKE_RULES_OVERRIDE feature instead of INCLUDE.

- remove superfluous tests in innobase's CMakeLists.txt

Fix AIX error during compile in my_handler (pointer to data is used, while pointer to function is expected). 
This also has generated warnings on all other platforms

make -DBUILD_CONFIG=mysql_release work

They are probably sometimes used by the bteam

just in case old linux is used, add _GNU_SOURCE preprocessor constant to be able to see pthread_rwlock_t

-lm is sometimes not linked, which causes errors about undefined rint()
- FreeBSD embedded library does not link with the flags returned by mysql_config
 (added -lcrypt to LIBS, whereby causing overlinking in case of normal non-embedded client)

for regular PB builds.

Init MY_PTHREAD_MUTEX_FAST prior to first usage to avoid crash on
FreeBSD

storage/innobase/CMakeLists.txt:
  Bring innobase's CMakeLists.txt  in sync with latest
  plug.in (fix preprocessor macro names and feature tests). Thanks to Vasil Dimov for spotting this.

honor OUTPUT_NAME in MERGE_LIBRARIES macro

-WL#2822 INFORMATION_SCHEMA.ROUTINES: Add missing columns
-WL#2003 INFORMATION_SCHEMA: PARAMETERS view
-addon for 'I_S optimization' WL