add installation instructions to liblitmus (and 'make help')

Some initial documentation to aid new users get started with compiling
the library.

1 files changed, 4 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index d427e1b..ef2be1f 100644
--- a/Makefile
+++ b/Makefile
@@ -73,7 +73,7 @@ all     = lib ${rt-apps}
 rt-apps = cycles base_task rt_launch rtspin release_ts measure_syscall \
           base_mt_task runtests
 
-.PHONY: all lib clean dump-config TAGS tags cscope
+.PHONY: all lib clean dump-config TAGS tags cscope help
 
 all: ${all} inc/config.makefile
 
@@ -111,6 +111,9 @@ dump-config:
                 AR "${AR}" \
                 obj-all "${obj-all}"
 
+help:
+        @cat INSTALL
+
 clean:
         rm -f ${rt-apps}
         rm -f *.o *.d *.a test_catalog.inc