I am trying to build multiple apps in one package. I tried the following but am getting linker errors (of all things!)

```

PKGDIR ?= ../..
L4DIR ?= $(PKGDIR)/../..

TARGET = app1
SRC_CC = app1.cc common.cc
REQUIRES_LIBS    = libio cxx_libc_io cxx_io libstdc++

include $(L4DIR)/mk/prog.mk

TARGET = app2
SRC_CC = app2.cc common.cc
REQUIRES_LIBS    = libio cxx_libc_io cxx_io libstdc++

include $(L4DIR)/mk/prog.mk

```

What is the right way to do this?