installed check for c but "check.h" not found - c

Question

Im using windows 10 with wsl ubuntu 18.04 Im trying to run the code from here :
https://www.ccs.neu.edu/home/skotthe/classes/cs5600/fall/2015/labs/intro-check-lab-code.tgz
I installed gcc, makefile, and check in the ubuntu terminal. But when I di $ make it says:
gcc money.o check_money.o -lcheck -lm -lpthread -lrt -lgcov -coverage -o check_money_tests
/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libcheck.a(check_log.o): In function `subunit_lfun':
(.text+0x5f4): undefined reference to `subunit_test_start'
(.text+0x6bf): undefined reference to `subunit_test_fail'
(.text+0x6d4): undefined reference to `subunit_test_pass'
(.text+0x6ef): undefined reference to `subunit_test_error'
collect2: error: ld returned 1 exit status
Makefile:23: recipe for target 'check_money_tests' failed
make: *** [check_money_tests] Error 1
so I open the check_money.c it says that check.h cannot be found. What did I miss here?

Answer 1

Simple version: you should also link with -lsubunit flag, i.e.:
TST_LIBS = -lcheck -lm -lpthread -lrt -lsubunit
Better yet, all the flags should be taken from check's package configuration, as the requirements depend on how the check library was built (and that's what pkg-config has been invented for). So instead of hardcoding your options, you could improve your Makefile like this:
CFLAGS = -c -Wall $(shell pkg-config --cflags check)
TST_LIBS = $(shell pkg-config --libs check)
Result:
$ make
gcc -c -Wall -pthread -fprofile-arcs -ftest-coverage src/*.c
gcc -c -Wall -pthread -fprofile-arcs -ftest-coverage tests/*.c
gcc money.o check_money.o -lcheck_pic -pthread -lrt -lm -lsubunit -lgcov -coverage -o check_money_tests
...