Better Pedometer - HELP NEEDED!

@user107850 - I ran into build issues. I had to create the build directory, but there is also a clash with time_t.

I am on a Linux Debian environment

$ uname -a
Linux penguin 5.4.131-16049-gc688e114d34e #1 SMP PREEMPT Sun Sep 19 21:16:20 PDT 2021 x86_64 GNU/Linux

$ 
$ mkdir build
$ pwd
/home/hughbarney/src/banglejs-algos-test­er
$ 
$ ll
total 12
drwxr-xr-x 1 hughbarney hughbarney    0 Oct  4 21:13 build
-rw-r--r-- 1 hughbarney hughbarney  608 Oct  4 21:04 CMakeLists.txt
drwxr-xr-x 1 hughbarney hughbarney   10 Oct  4 21:04 data
-rw-r--r-- 1 hughbarney hughbarney 1068 Oct  4 21:04 LICENSE
-rw-r--r-- 1 hughbarney hughbarney 1703 Oct  4 21:04 README.md
drwxr-xr-x 1 hughbarney hughbarney   50 Oct  4 21:04 src
$ 
$ 
$ cd build
$ cmake ../
-- The C compiler identification is GNU 8.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/hughbarney/src/banglejs-algos-test­er/build
$ 
$ cmake --build .
Scanning dependencies of target banglejs-algos-tester
[  8%] Building C object CMakeFiles/banglejs-algos-tester.dir/src­/main.c.o
In file included from /home/hughbarney/src/banglejs-algos-test­er/src/stepcounters/stepcounters.h:4,
                 from /home/hughbarney/src/banglejs-algos-test­er/src/main.c:6:
/home/hughbarney/src/banglejs-algos-test­er/src/stepcounters/../types.h:8:18: error: conflicting types for ‘time_t’
 typedef uint32_t time_t;
                  ^~~~~~
In file included from /usr/include/x86_64-linux-gnu/sys/types.­h:129,
                 from /usr/include/stdlib.h:394,
                 from /home/hughbarney/src/banglejs-algos-test­er/src/main.c:4:
/usr/include/x86_64-linux-gnu/bits/types­/time_t.h:7:18: note: previous declaration of ‘time_t’ was here
 typedef __time_t time_t;
                  ^~~~~~
make[2]: *** [CMakeFiles/banglejs-algos-tester.dir/bu­ild.make:63: CMakeFiles/banglejs-algos-tester.dir/src­/main.c.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:73: CMakeFiles/banglejs-algos-tester.dir/all­] Error 2
make: *** [Makefile:106: all] Error 2
$ 
$ pwd
/home/hughbarney/src/banglejs-algos-test­er/build