diff --git a/libipmid/Makefile.am b/libipmid/Makefile.am
index e5724a8..ac35bbf 100644
--- a/libipmid/Makefile.am
+++ b/libipmid/Makefile.am
@@ -1,8 +1,21 @@
+COMMON_CXX = \
+	-flto \
+	-Wno-psabi \
+	$(SYSTEMD_CFLAGS) \
+	$(SDBUSPLUS_CFLAGS) \
+	-DBOOST_ERROR_CODE_HEADER_ONLY \
+	-DBOOST_SYSTEM_NO_DEPRECATED \
+	-DBOOST_COROUTINES_NO_DEPRECATION_WARNING \
+	-DBOOST_ASIO_DISABLE_THREADS \
+	-DBOOST_ALL_NO_LIB
+
 pkgconfig_DATA = libipmid.pc
 lib_LTLIBRARIES = libipmid.la
-libipmid_la_SOURCES =
+libipmid_la_SOURCES = \
+	sdbus-asio.cpp \
+	systemintf-sdbus.cpp
 libipmid_la_LDFLAGS = \
 	$(SYSTEMD_LIBS) \
 	-version-info 0:0:0 -shared
 libipmid_la_CXXFLAGS = \
-	$(SYSTEMD_CFLAGS)
+	$(COMMON_CXX)