diff --git a/src/wraps/PQconninfoParsePrepare.c b/src/wraps/PQconninfoParsePrepare.c
index fdb04cc..3b85096 100644
--- a/src/wraps/PQconninfoParsePrepare.c
+++ b/src/wraps/PQconninfoParsePrepare.c
@@ -5,7 +5,7 @@
 
 #include "pqf-wraps.h"
 
-int PQconninfoParsePrepare(const char *conninfo, char **errmsg, int **errlen, PQFconninfoSize**optionsizes)
+int PQconninfoParsePrepare(const char *conninfo, char **errmsg, int *errlen, PQFconninfoSize**optionsizes)
 {
    int length;
    char* errmsg_local;
diff --git a/src/wraps/PQconninfoPrepare.c b/src/wraps/PQconninfoPrepare.c
index 269fbd6..f0f2073 100644
--- a/src/wraps/PQconninfoPrepare.c
+++ b/src/wraps/PQconninfoPrepare.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdlib.h>
 #include <libpq-fe.h>
 
 #include "pqf-wraps.h"
diff --git a/src/wraps/c_FD.c b/src/wraps/c_FD.c
index 3645c7d..c45baf1 100644
--- a/src/wraps/c_FD.c
+++ b/src/wraps/c_FD.c
@@ -1,4 +1,4 @@
-#ifdef __linux__
+#if defined(__linux__) || defined(__APPLE__)
 
 #include <sys/select.h>