Fix build error after last push with --with-debug=full due to SAFEMALLOC now being

defined in my_config.h (as opposed to in CFLAGS before.)

mysys/my_malloc.c:
  Need to include my_global.h before messing with SAFEMALLOC, as now that macro may be
  re-defined in my_config.h, which is included from my_global.h
mysys/my_once.c:
  Need to include my_global.h before messing with SAFEMALLOC, as now that macro may be
  re-defined in my_config.h, which is included from my_global.h
mysys/my_realloc.c:
  Need to include my_global.h before messing with SAFEMALLOC, as now that macro may be
  re-defined in my_config.h, which is included from my_global.h

mysys/my_malloc.c

@@ -13,6 +13,9 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
+/* my_global.h may define SAFEMALLOC (through my_config.h). */
+#include <my_global.h>
+
 #ifdef SAFEMALLOC			/* We don't need SAFEMALLOC here */
 #undef SAFEMALLOC
 #endif

mysys/my_once.c

@@ -15,6 +15,9 @@
 
 /* Not MT-SAFE */
 
+/* my_global.h may define SAFEMALLOC (through my_config.h). */
+#include <my_global.h>
+
 #ifdef SAFEMALLOC			/* We don't need SAFEMALLOC here */
 #undef SAFEMALLOC
 #endif

mysys/my_realloc.c

@@ -13,6 +13,9 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
+/* my_global.h may define SAFEMALLOC (through my_config.h). */
+#include <my_global.h>
+
 #ifdef SAFEMALLOC			/* We don't need SAFEMALLOC here */
 #undef SAFEMALLOC
 #endif