File pkgconfig.patch of Package swipl
diff -Pdpru pl-6.6.6/src/swipl.pc.in pl-6.6.6-mod/src/swipl.pc.in
--- pl-6.6.6/src/swipl.pc.in 2014-05-28 18:53:51.000000000 +0900
+++ pl-6.6.6-mod/src/swipl.pc.in 2014-07-22 21:19:43.812382295 +0900
@@ -1,7 +1,7 @@
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
-includedir=@includedir@
+includedir=${libdir}/@PL@-@PLVERSION@/include
PLBASE=@PLBASE@
PLARCH=@PLARCH@