allow people to store custom settings in config.mk rather
diff --git a/Makefile b/Makefile
index 931d9c2..7062db9 100644
--- a/Makefile
+++ b/Makefile
@@ -21,11 +21,16 @@
# LIB_DIR=/lib64
# export CC AR LDFLAGS LOADLIBES LIB_DIR
#
+# Or, you can save all your settings into the local 'config.mk' file.
+# Just use the same syntax as above for the Makefile.
+#
# Note: If you override a variable from the commandline all
# assignments to it in the Makefiles will be ignored. To set it both
# in the commandline and in the Makefiles use a dummy variable like in
# CFLAGS
+-include config.mk
+
export CFLAGS+= -Wall $(CROSS_CFLAGS)
all: libltp.a