Move xau from Requires to Requires.private in printproto.pc

The xau headers are required because Print.h has #include <X11/Xauth.h>
for the definition of the Xauth typedef, but software including this
header doesn't necessarily need to link with libXau.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/printproto.pc.in b/printproto.pc.in
index bbc6ec8..ce186f0 100644
--- a/printproto.pc.in
+++ b/printproto.pc.in
@@ -6,5 +6,5 @@ includedir=@includedir@
 Name: PrintProto
 Description: Print extension headers
 Version: @PACKAGE_VERSION@
-Requires: xau
+Requires.private: xau
 Cflags: -I${includedir}