--- a/configure.ac
+++ b/configure.ac
@@ -82,11 +82,6 @@
 dnl PKGCONFIG preparations
 dnl ======================
 
-if test -z $PKG_CONFIG_PATH; then
-	PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig
-fi
-
-export PKG_CONFIG_PATH
 
 
 dnl ===============
--- a/output/jack/Makefile.am
+++ b/output/jack/Makefile.am
@@ -24,7 +24,6 @@
 
 AM_CXXFLAGS = $(COMMON_FLAGS) $(JACK_CFLAGS)
 
-AM_CFLAGS = $(AM_CXXFLAGS)
 
 libdir = $(ADDON_DIR)/output