include unistd.h

diff --git a/zypp/ExternalProgram.h b/zypp/ExternalProgram.h
index c3e7206..d5f37c5 100644 (file)
--- a/zypp/ExternalProgram.h
+++ b/zypp/ExternalProgram.h
@@ -13,6 +13,8 @@
 #ifndef ZYPP_EXTERNALPROGRAM_H
 #define ZYPP_EXTERNALPROGRAM_H
 
+#include <unistd.h>
+
 #include <map>
 #include <string>
 #include <vector>