What is the make: *** [test] Error 10 signify?

I run a program using Makefile and it is giving me a strange error, although successfully executed. make: *** [test] Error 10

Here is my Makefile code

30 
31 test:
32         @ echo
33  开发者_JAVA百科       @ echo "Testing Electric Fence."
34         @ echo "After the last test, it should print that the test has PASSED."
35         ./eftest
36         ./tstheap 3072
37         @ echo
38         @ echo "Starting test for time-interval-measurement."
39        export EF_ERRTRACK_START=3; export EF_ERRTRACK_END=5; ./time-interval-measurement-test
40         @ echo
41         @ echo "Electric Fence confidence test PASSED." 
42         @ echo

On execution:

Time interval measurement test: PASSED
make: *** [test] Error 10
-bash-3.2# make test

To workaround that (in case you cannot modify the (return/exit) behaviour of your binaries) use

./exec || /bin/true

.

[foo] Error NN’

These errors are not really make errors at all. They mean that a program that make invoked as part of a recipe returned a non-0 error code (‘Error NN’), which make interprets as failure, or it exited in some other abnormal fashion (with a signal of some type). See Errors In Recipes.

If no ** * is attached to the message, then the subprocess failed but the rule in the makefile was prefixed with the - special character, so make ignored the error.

http://www.gnu.org/s/hello/manual/make/Error-Messages.html

So one of your commands is returning a non-zero error code.

One of your command exits with error. Not echo, the other ones. Check them.