tests don't work with latest release of cmocka

[edrex]

With cmocka 1.1.6:

[edrex@chip:~/src/github.com/alex-courtis/way-displays]$ make test
make -f tst/GNUmakefile tst-all
make[1]: Entering directory '/home/edrex/src/github.com/alex-courtis/way-displays'
gcc -pedantic -Wall -Wextra -Werror -Wno-unused-parameter -O3 -g -std=gnu17 -Wold-style-definition -Wstrict-prototypes -I/nix/store/svjch48rg6cw70b8sxckrz7a0gd4avww-wayland-1.21.0-dev/include -I/nix/store/29xdwlhjs5s6118wylbabjrc9ld185x6-yaml-cpp-0.7.0/include -I/nix/store/v6hil4fnxnn2amlxvn87ins050zbyihb-libinput-1.22.1-dev/include -I/nix/store/vsr29xlfafz0mksyaf31n515hd6cdf2v-systemd-253.1-dev/include -I/nix/store/2qa5ixdwf5f0wx2vrrf4qs8i6p3cf1ab-cmocka-1.1.6/include -Iinc -Ipro -D_GNU_SOURCE -DVERSION=\""1.7.2-SNAPSHOT"\" -DROOT_ETC=\"/etc\"  -c -o tst/tst-cfg.o tst/tst-cfg.c
In file included from tst/tst-cfg.c:2:
tst/asserts.h: In function ‘_assert_wl_fixed_t_equal_double’:
tst/asserts.h:16:17: error: implicit declaration of function ‘cmocka_print_error’; did you mean ‘cm_print_error’? [-Werror=implicit-function-declaration]
   16 |                 cmocka_print_error("%g != %g\n", wl_fixed_to_double(a), b);
      |                 ^~~~~~~~~~~~~~~~~~
      |                 cm_print_error
cc1: all warnings being treated as errors
make[1]: *** [<builtin>: tst/tst-cfg.o] Error 1
make[1]: Leaving directory '/home/edrex/src/github.com/alex-courtis/way-displays'
make: *** [GNUmakefile:77: test] Error 2

Some functions are renamed in the master branch, so I guess you have that. Seems like it should target the released branch, unless there's some essential fix that's unreleased?

Found while working on #86.

[alex-courtis]

That is very odd... a breaking change.

I was indeed using master, now using 1.1.7