Always build pacrunners as separate modules, not libproxy builtins
--- libproxy-0.4.8/libproxy/cmake/modules.cmk.orig	2012-10-05 17:15:58.655470278 +0200
+++ libproxy-0.4.8/libproxy/cmake/modules.cmk	2012-10-05 17:47:10.435431265 +0200
@@ -19,10 +19,7 @@
 include(cmake/modules/pacrunner_webkit.cmk)
 
 # Build the pacrunner into libproxy unless we are building for multiple engines
-set(BIPR 1 CACHE BOOL "Build internal pacrunner? (Always false when building more than one PR")
-if((MOZJS_FOUND AND WEBKIT_FOUND) OR (MOZJS_FOUND AND NATUS_FOUND) OR (WEBKIT_FOUND AND NATUS_FOUND))
-  set(BIPR 0)
-endif()
+set(BIPR 0)
 
 #
 ## Module definition
@@ -41,7 +41,7 @@
   set(NM_BUILD 1)
 endif(NM_FOUND OR NMold_FOUND)
 px_module(network_networkmanager   "${NM_BUILD}"     0       ${NM_LIBRARIES}${NMold_LIBRARIES})
-px_module(pacrunner_mozjs          0                 ${BIPR} ${MOZJS_LIBRARIES})
+px_module(pacrunner_mozjs          "${MOZJS_FOUND}"  ${BIPR} ${MOZJS_LIBRARIES})
 px_module(pacrunner_natus          "${NATUS_FOUND}"  ${BIPR} ${NATUS_LIBRARIES})
 px_module(pacrunner_webkit         "${WEBKIT_FOUND}" ${BIPR} ${WEBKIT_LIBRARIES})
 px_module(wpad_dns_alias           1                 1)