- Manually merged two changes from 4.0

BUILD/compile-dist:
  - manual merge
include/my_pthread.h:
  - manual merge

BUILD/compile-dist

@@ -43,5 +43,6 @@ fi
   --with-berkeley-db \
   --with-innodb \
   --enable-thread-safe-client \
+  --with-extra-charsets=complex \
   --with-ndbcluster
 make

include/my_pthread.h

@@ -631,6 +631,7 @@ extern int pthread_dummy(int);
 /* All thread specific variables are in the following struct */
 
 #define THREAD_NAME_SIZE 10
+#ifndef DEFAULT_THREAD_STACK
 #if defined(__ia64__)
 /*
   MySQL can survive with 32K, but some glibc libraries require > 128K stack
@@ -640,6 +641,7 @@ extern int pthread_dummy(int);
 #else
 #define DEFAULT_THREAD_STACK	(192*1024)
 #endif
+#endif
 
 struct st_my_thread_var
 {