diff -r 4e6e812c1d97 -r 069c152f6272 src/server/ucx/mempool.c
--- a/src/server/ucx/mempool.c	Thu Jun 20 14:07:46 2013 +0200
+++ b/src/server/ucx/mempool.c	Fri Jun 21 12:10:44 2013 +0200
@@ -1,11 +1,38 @@
 /*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
+ * Copyright 2013 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
-#include <errno.h>
+#ifdef __cplusplus
+#define __STDC_FORMAT_MACROS
+#endif
+#include <inttypes.h>
 
 #include "mempool.h"
 
@@ -28,7 +55,7 @@
     UcxMempool *pool = (UcxMempool*)malloc(sizeof(UcxMempool));
     if (pool == NULL) return NULL;
     
-    pool->data = malloc(n * sizeof(void*));
+    pool->data = (void**) malloc(n * sizeof(void*));
     if (pool->data == NULL) {
         free(pool);
         return NULL;
@@ -40,9 +67,9 @@
 }
 
 int ucx_mempool_chcap(UcxMempool *pool, size_t newcap) {
-    void **data = realloc(pool->data, newcap*sizeof(void*));
+    void **data = (void**) realloc(pool->data, newcap*sizeof(void*));
     if (data == NULL) {
-        return ENOMEM;
+        return 1;
     } else {
         pool->data = data; 
         pool->size = newcap;
@@ -79,13 +106,14 @@
     char *newm = (char*) realloc(mem, n + sizeof(ucx_destructor));
     if (newm == NULL) return NULL;
     if (mem != newm) {
-        for(int i=0;i<pool->ndata;i++) {
+        for(size_t i=0 ; i < pool->ndata ; i++) {
             if(pool->data[i] == mem) {
                 pool->data[i] = newm;
                 return newm + sizeof(ucx_destructor);
             }
         }
-        fprintf(stderr, "FATAL: %8x not in mpool %8x\n", ptr, pool);
+        fprintf(stderr, "FATAL: 0x%08" PRIxPTR" not in mpool 0x%08" PRIxPTR"\n",
+          (intptr_t)ptr, (intptr_t)pool);
         exit(1);
     } else {
         return newm + sizeof(ucx_destructor);
@@ -94,7 +122,7 @@
 
 void ucx_mempool_free(UcxMempool *pool) {
     ucx_memchunk *chunk;
-    for(int i=0;i<pool->ndata;i++) {
+    for(size_t i=0 ; i<pool->ndata ; i++) {
         chunk = (ucx_memchunk*) pool->data[i];
         if(chunk->destructor != NULL) {
             chunk->destructor(&chunk->c);