source/io: Implement
diff --git a/src/Makefile.am b/src/Makefile.am
index 130c8e5..74f01f5 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -27,6 +27,9 @@
 nobase_include_HEADERS += sdeventplus/source/event.hpp
 libsdeventplus_la_SOURCES += sdeventplus/source/event.cpp
 
+nobase_include_HEADERS += sdeventplus/source/io.hpp
+libsdeventplus_la_SOURCES += sdeventplus/source/io.cpp
+
 nobase_include_HEADERS += sdeventplus/source/time.hpp
 libsdeventplus_la_SOURCES += sdeventplus/source/time.cpp