--- configure.ac.old	2010-03-01 17:07:05.000000000 +0000
+++ configure.ac	2010-03-01 17:07:33.000000000 +0000
@@ -532,9 +532,9 @@ AC_MSG_RESULT([$enable_desktop_file_plug
 
 if test "$enable_desktop_file_plugin" = "yes"; then
 	if test "${gecko_cv_gecko}" = "libxul-embedding" -o "${gecko_cv_gecko}" = "libxul"; then
-		PKG_CHECK_MODULES([DESKTOP_FILE_PLUGIN_DEP],[${gecko_cv_gecko} mozilla-plugin gtk+-2.0 >= 2.6.0])
+		PKG_CHECK_MODULES([DESKTOP_FILE_PLUGIN_DEP],[${gecko_cv_gecko} mozilla-plugin gtk+-2.0 >= 2.6.0 nspr])
 	else
-		PKG_CHECK_MODULES([DESKTOP_FILE_PLUGIN_DEP],[${gecko_cv_gecko}-xpcom ${gecko_cv_gecko}-plugin gtk+-2.0 >= 2.6.0])
+		PKG_CHECK_MODULES([DESKTOP_FILE_PLUGIN_DEP],[${gecko_cv_gecko}-xpcom ${gecko_cv_gecko}-plugin gtk+-2.0 >= 2.6.0 nspr])
 	fi
 	AC_SUBST([DESKTOP_FILE_PLUGIN_DEP_CFLAGS])
 	AC_SUBST([DESKTOP_FILE_PLUGIN_DEP_LIBS])