--- a/osx.mk	Thu Sep 07 18:42:51 2017 +0200
+++ b/osx.mk	Sun Sep 10 10:23:25 2017 +0200
@@ -43,4 +43,4 @@
 APP_EXT =
 
 DAV_CFLAGS = `xml2-config --cflags`
-DAV_LDFLAGS = -lcurl -lxml2 -lssl -lcrypto
+DAV_LDFLAGS = -lcurl -lxml2 -lssl -lcrypto -lpthread