bug#58955: Must -DBUILD_CONFIG=mysql_release require libaio on Linux

Allow users to build without aio if they really want to, by passing
-DIGNORE_AIO_CHECK to cmake.

cmake/build_configurations/mysql_release.cmake

@@ -118,6 +118,7 @@ IF(UNIX)
   OPTION(WITH_PIC "" ON) # Why?
 
   IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    IF(NOT IGNORE_AIO_CHECK)
       # Ensure aio is available on Linux (required by InnoDB)
       CHECK_INCLUDE_FILES(libaio.h HAVE_LIBAIO_H)
       CHECK_LIBRARY_EXISTS(aio io_queue_init "" HAVE_LIBAIO)
@@ -128,8 +129,11 @@ IF(UNIX)
           Debian/Ubuntu:              apt-get install libaio-dev
           RedHat/Fedora/Oracle Linux: yum install libaio-devel
           SuSE:                       zypper install libaio-devel
+
+        If you really do not want it, pass -DIGNORE_AIO_CHECK to cmake.
         ")
       ENDIF()
+    ENDIF()
 
     # Enable fast mutexes on Linux
     OPTION(WITH_FAST_MUTEXES "" ON)