Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -226,16 +226,20 @@
 AS_IF([test x"$enable_shared" != x"no"], [
 	BUILDSYS_SHARED_LIB
 	AC_SUBST(OBJFW_SHARED_LIB, "${LIB_PREFIX}objfw${LIB_SUFFIX}")
 	AC_SUBST(EXCEPTIONS_LIB_A, "exceptions.lib.a")
 	AC_SUBST(EXCEPTIONS_EXCEPTIONS_LIB_A, "exceptions/exceptions.lib.a")
+	AC_SUBST(RUNTIME_LIB_A, "runtime.lib.a")
+	AC_SUBST(RUNTIME_RUNTIME_LIB_A, "runtime/runtime.lib.a")
 ])
 AC_ARG_ENABLE(static, AS_HELP_STRING([--enable-static], [build static library]))
 AS_IF([test x"$enable_static" = x"yes" -o x"$enable_shared" = x"no"], [
 	AC_SUBST(OBJFW_STATIC_LIB, "libobjfw.a")
 	AC_SUBST(EXCEPTIONS_A, "exceptions.a")
 	AC_SUBST(EXCEPTIONS_EXCEPTIONS_A, "exceptions/exceptions.a")
+	AC_SUBST(RUNTIME_A, "runtime.a")
+	AC_SUBST(RUNTIME_RUNTIME_A, "runtime/runtime.a.")
 ])
 
 AC_DEFINE_UNQUOTED(PLUGIN_SUFFIX, "$PLUGIN_SUFFIX", [Suffix for plugins])
 AS_IF([test x"$PLUGIN_SUFFIX" != x""], [
 	AC_SUBST(OFPLUGIN_M, "OFPlugin.m")

Index: extra.mk.in
==================================================================
--- extra.mk.in
+++ extra.mk.in
@@ -24,9 +24,13 @@
 OFSTREAMOBSERVER_SELECT_M = @OFSTREAMOBSERVER_SELECT_M@
 OFTHREAD_M = @OFTHREAD_M@
 OFTHREADTESTS_M = @OFTHREADTESTS_M@
 PROPERTIESTESTS_M = @PROPERTIESTESTS_M@
 REEXPORT_LIBOBJC = @REEXPORT_LIBOBJC@
+RUNTIME_A = @RUNTIME_A@
+RUNTIME_RUNTIME_A = @RUNTIME_RUNTIME_A@
+RUNTIME_RUNTIME_LIB_A = @RUNTIME_RUNTIME_LIB_A@
+RUNTIME_LIB_A = @RUNTIME_LIB_A@
 TESTPLUGIN = @TESTPLUGIN@
 TESTS = @TESTS@
 TEST_LAUNCHER = @TEST_LAUNCHER@
 THREADING_H = @THREADING_H@

Index: src/Makefile
==================================================================
--- src/Makefile
+++ src/Makefile
@@ -1,8 +1,8 @@
 include ../extra.mk
 
-SUBDIRS = exceptions
+SUBDIRS = exceptions runtime
 
 SHARED_LIB = ${OBJFW_SHARED_LIB}
 STATIC_LIB = ${OBJFW_STATIC_LIB}
 LIB_MAJOR = ${OBJFW_LIB_MAJOR}
 LIB_MINOR = ${OBJFW_LIB_MINOR}
@@ -98,11 +98,11 @@
 	${OBJC_PROPERTIES_M}		\
 	${OBJC_SYNC_M}
 
 include ../buildsys.mk
 
-CPPFLAGS += -I. -I.. -Iexceptions
+CPPFLAGS += -I. -I.. -Iexceptions -Iruntime
 LD = ${OBJC}
 LDFLAGS += ${REEXPORT_LIBOBJC} ${MACH_ALIAS_LIST}
 
-LIB_OBJS := ${LIB_OBJS} ${EXCEPTIONS_EXCEPTIONS_LIB_A}
-OBJS += ${EXCEPTIONS_EXCEPTIONS_A}
+LIB_OBJS := ${LIB_OBJS} ${EXCEPTIONS_EXCEPTIONS_LIB_A} ${RUNTIME_RUNTIME_LIB_A}
+OBJS += ${EXCEPTIONS_EXCEPTIONS_A} ${RUNTIME_RUNTIME_A}

ADDED   src/runtime/Makefile
Index: src/runtime/Makefile
==================================================================
--- src/runtime/Makefile
+++ src/runtime/Makefile
@@ -0,0 +1,9 @@
+include ../../extra.mk
+
+STATIC_PIC_LIB_NOINST = ${RUNTIME_LIB_A}
+STATIC_LIB_NOINST = ${RUNTIME_A}
+
+include ../../buildsys.mk
+
+CPPFLAGS += -I. -I.. -I../..
+LD = ${OBJC}