diff --git a/libports/lib/mk/libc-compat.mk b/libports/lib/mk/libc-compat.mk
new file mode 100644
index 000000000..9c289674a
--- /dev/null
+++ b/libports/lib/mk/libc-compat.mk
@@ -0,0 +1,7 @@
+LIBC_COMPAT_DIR = $(LIBC_DIR)/libc/compat-43
+
+SRC_C = $(filter-out $(FILTER_OUT),$(notdir $(wildcard $(LIBC_COMPAT_DIR)/*.c)))
+
+include $(REP_DIR)/lib/mk/libc-common.inc
+
+vpath %.c $(LIBC_COMPAT_DIR)
diff --git a/libports/lib/mk/libc.mk b/libports/lib/mk/libc.mk
index 339e19c81..f80892775 100644
--- a/libports/lib/mk/libc.mk
+++ b/libports/lib/mk/libc.mk
@@ -3,7 +3,7 @@
 #
 
 LIBS   = libc-string libc-locale libc-stdlib libc-stdio libc-gen libc-gdtoa \
-         libc-inet libc-stdtime libc-regex
+         libc-inet libc-stdtime libc-regex libc-compat
 LIBS  += timed_semaphore cxx
 
 #
diff --git a/libports/src/lib/libc/dummies.cc b/libports/src/lib/libc/dummies.cc
index b00a5f19c..13efb86a4 100644
--- a/libports/src/lib/libc/dummies.cc
+++ b/libports/src/lib/libc/dummies.cc
@@ -65,7 +65,6 @@ DUMMY( 0, getuid)
 DUMMY(-1, __has_sse)
 DUMMY(-1, host_detect_local_cpu)
 DUMMY(-1, kill)
-DUMMY(-1, killpg)
 DUMMY(-1, ksem_close)
 DUMMY(-1, ksem_destroy)
 DUMMY(-1, ksem_getvalue)