Making ma_pagecache_rwconsist_1k-t unit test build under Windows

storage/maria/unittest/CMakeLists.txt:
  build unit test under Windows too
storage/maria/unittest/ma_pagecache_rwconsist.c:
  portability fix for Windows

storage/maria/unittest/CMakeLists.txt

@@ -93,3 +93,5 @@ SET_TARGET_PROPERTIES(ma_pagecache_consist_1kWR-t
 ADD_EXECUTABLE(ma_pagecache_consist_64kWR-t ${ma_pagecache_consist_src})
 SET_TARGET_PROPERTIES(ma_pagecache_consist_64kWR-t
 	PROPERTIES COMPILE_FLAGS "${ma_pagecache_common_cppflags} -DTEST_PAGE_SIZE=65536 -DTEST_WRITERS")
+ADD_EXECUTABLE(ma_pagecache_rwconsist_1k-t ma_pagecache_rwconsist.c)
+SET_TARGET_PROPERTIES(ma_pagecache_rwconsist_1k-t PROPERTIES COMPILE_FLAGS "-DTEST_PAGE_SIZE=1024")

storage/maria/unittest/ma_pagecache_rwconsist.c

@@ -31,7 +31,7 @@ static const char* default_dbug_option;
 #endif
 
 
-#define SLEEP usleep(5)
+#define SLEEP my_sleep(5)
 
 static char *file1_name= (char*)"page_cache_test_file_1";
 static PAGECACHE_FILE file1;