chdir may be defined in unistd.h

diff --git a/src/pazpar2.c b/src/pazpar2.c
index f51fa9e..585c0f8 100644 (file)
--- a/src/pazpar2.c
+++ b/src/pazpar2.c
@@ -23,6 +23,9 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #ifdef WIN32
 #include <winsock.h>
 #endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 
 #include <signal.h>
 #include <assert.h>