3 files changed, 6 insertions, 0 deletions

diff --git a/openbsd-compat/bsd-asprintf.c b/openbsd-compat/bsd-asprintf.c
index 5ca01f80f..1178296f8 100644
--- a/openbsd-compat/bsd-asprintf.c
+++ b/openbsd-compat/bsd-asprintf.c
@@ -21,6 +21,9 @@
 
 #ifndef HAVE_VASPRINTF
 
+#include <errno.h>
+#include <stdarg.h>
+
 #ifndef VA_COPY
 # ifdef HAVE_VA_COPY
 #  define VA_COPY(dest, src) va_copy(dest, src)
diff --git a/openbsd-compat/port-aix.c b/openbsd-compat/port-aix.c
index 81d8124e0..33be00c2b 100644
--- a/openbsd-compat/port-aix.c
+++ b/openbsd-compat/port-aix.c
@@ -33,6 +33,7 @@
 
 #ifdef _AIX
 
+#include <errno.h>
 #include <uinfo.h>
 #include <sys/socket.h>
 #include "port-aix.h"
diff --git a/openbsd-compat/rresvport.c b/openbsd-compat/rresvport.c
index 71cf6e6eb..fc029f46f 100644
--- a/openbsd-compat/rresvport.c
+++ b/openbsd-compat/rresvport.c
@@ -35,6 +35,8 @@
 
 #ifndef HAVE_RRESVPORT_AF
 
+#include <errno.h>
+
 #if 0
 int
 rresvport(int *alport)