diff --git a/configure.ac b/configure.ac
index 8484320e..f2ca611a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,14 @@
 AC_PREREQ([2.65])
 AC_INIT([ebusd], [0.5.0], [ebusd@liwest.at], [ebusd], [https://github.com/yuhu-/ebusd])
 
+case "$@" in
+	*"--sysconfdir="*) ;;
+	*) sysconfdir=/etc ;;
+esac
+
+if test -z $CXXFLAGS;
+	then CXXFLAGS='-g -O2'
+fi
 AC_PROG_CXX
 
 AC_CHECK_HEADERS([arpa/inet.h \
diff --git a/src/ebusd/Makefile.am b/src/ebusd/Makefile.am
index a5a747dd..1bc1fcb0 100644
--- a/src/ebusd/Makefile.am
+++ b/src/ebusd/Makefile.am
@@ -23,3 +23,5 @@ distclean-local:
 	-rm -f Makefile.in
 	-rm -rf .libs
 
+install-data-local:
+	[ -d $(sysconfdir)/ebusd ] || mkdir -p $(sysconfdir)/ebusd