Merge mysql-5.1 -> mysql-5.5

I manually checked that all the conflicting InnoDB changes are in 5.5 already.
Two things I am not sure about - I commented them with XXX in this patch.
I will further check with the authors of the changesets whether these things
should be present or not.

cmd-line-utils/libedit/histedit.h

@@ -43,7 +43,12 @@
 #define	LIBEDIT_MAJOR 2
 #define	LIBEDIT_MINOR 11
 
+/* XXXMYSQL : stdint.h might not be available on older Solaris platforms. */
+#if defined(__sun) || defined(__sun__)
+#include <sys/inttypes.h>
+#else
 #include <stdint.h>
+#endif
 
 #include <sys/types.h>
 #include <stdio.h>

cmd-line-utils/libedit/np/unvis.c

@@ -47,14 +47,21 @@ static char sccsid[] = "@(#)unvis.c	8.1 (Berkeley) 6/4/93";
 
 #include <assert.h>
 #include <ctype.h>
+
+/* XXXMYSQL : stdint.h might not be available on older Solaris platforms. */
+#if defined(__sun) || defined(__sun__)
+#include <sys/inttypes.h>
+#else
 #include <stdint.h>
+#endif
+
 #include <stdio.h>
 #include <errno.h>
-#ifdef HAVE_VIS_H
-#include <vis.h>
-#else
+/*
+  XXXMYSQL : Due to different versions of vis.h available,
+             use the one bundled with libedit.
+*/
 #include "np/vis.h"
-#endif
 
 #ifdef __weak_alias
 __weak_alias(strnunvisx,_strnunvisx)

cmd-line-utils/libedit/np/vis.c

@@ -68,11 +68,11 @@
 #include <sys/types.h>
 
 #include <assert.h>
-#ifdef HAVE_VIS_H
-#include <vis.h>
-#else
+/*
+  XXXMYSQL : Due to different versions of vis.h available,
+             use the one bundled with libedit.
+*/
 #include "np/vis.h"
-#endif
 #include <errno.h>
 #include <stdlib.h>
 

cmd-line-utils/libedit/read.c

@@ -333,7 +333,7 @@ memset(&state, 0, sizeof(mbstate_t));
 
 #ifdef WIDECHAR
         ++cbp;
-        if (cbp > MB_CUR_MAX) { /* "shouldn't happen" */
+        if (cbp > (size_t) MB_CUR_MAX) { /* "shouldn't happen" */
           *cp = '\0';
           return (-1);
         }

storage/innobase/handler/ha_innodb.cc

@@ -5261,6 +5261,9 @@ calc_row_difference(
 				dfield_set_null(&ufield->new_val);
 			}
 
+			/* XXX merge issues, should this be here?
+			ufield->extern_storage = FALSE;
+			*/
 			ufield->exp = NULL;
 			ufield->orig_len = 0;
 			ufield->field_no = dict_col_get_clust_pos(

storage/innobase/row/row0ins.c

@@ -276,7 +276,9 @@ row_ins_sec_index_entry_by_modify(
 		err = btr_cur_pessimistic_update(BTR_KEEP_SYS_FLAG, cursor,
 						 &heap, &dummy_big_rec, update,
 						 0, thr, mtr);
+		/* XXX merge conflicts, should this be here?
 		ut_ad(!dummy_big_rec);
+		*/
 	}
 func_exit:
 	mem_heap_free(heap);