Fix:

error: implicit declaration of function 'atoi' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

https://github.com/indexdata/yaz/issues/104
https://github.com/indexdata/yaz/pull/105
--- src/record_conv.c.orig
+++ src/record_conv.c
@@ -11,6 +11,7 @@
 #include <config.h>
 #endif
 
+#include <stdlib.h>
 #include <string.h>
 #include <yaz/log.h>
 #include <yaz/yaz-iconv.h>
--- src/xmlquery.c.orig
+++ src/xmlquery.c
@@ -10,6 +10,7 @@
 #endif
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <assert.h>
 
--- test/test_record_conv.c.orig
+++ test/test_record_conv.c
@@ -9,6 +9,7 @@
 #include <yaz/record_conv.h>
 #include <yaz/test.h>
 #include <yaz/wrbuf.h>
+#include <stdlib.h>
 #include <string.h>
 #include <yaz/log.h>
 #include <yaz/proto.h>
--- test/test_retrieval.c.orig
+++ test/test_retrieval.c
@@ -9,6 +9,7 @@
 #include <yaz/retrieval.h>
 #include <yaz/test.h>
 #include <yaz/wrbuf.h>
+#include <stdlib.h>
 #include <string.h>
 #include <yaz/log.h>
 #include <yaz/oid_db.h>