[libxslt] libxslt.pc.in: Do not expose private library dependencies unless invoked

[Nick Wellnhofer <nwellnhof src gnome org>]

commit 94316120d74ef944228920875453141850434457
Author: Hugh McMaster <hugh mcmaster outlook com>
Date:   Mon Jul 29 21:48:54 2019 +1000

    libxslt.pc.in: Do not expose private library dependencies
     unless invoked

 libxslt.pc.in | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/libxslt.pc.in b/libxslt.pc.in
index 082d64cd..81f8be12 100644
--- a/libxslt.pc.in
+++ b/libxslt.pc.in
@@ -8,5 +8,6 @@ Name: libxslt
 Version: @VERSION@
 Description: XSLT library version 2.
 Requires: libxml-2.0
-Libs: @XSLT_LIBDIR@ @XSLT_LIBS@ @EXTRA_LIBS@
 Cflags: @XSLT_INCLUDEDIR@
+Libs: @XSLT_LIBDIR@ @XSLT_LIBS@ @EXTRA_LIBS@
+Libs.private: @XSLT_PRIVATE_LIBS@