+linty: CCFLAGS += -W
+linty: CCFLAGS += -Wall
+linty: CCFLAGS += -Wextra
+linty: CCGLAGS += -Wpedantic
+linty: CCFLAGS += -Wundef
+linty: CCFLAGS += -Wstrict-prototypes
+linty: CCFLAGS += -Wmissing-prototypes
+linty: CCFLAGS += -Wmissing-declarations
+linty: CCFLAGS += -Wshadow
+linty: CCFLAGS += -Wnull-dereference
+linty: CCFLAGS += -Wjump-misses-init
+linty: CCFLAGS += -Wfloat-equal
+linty: CCFLAGS += -Wcast-align
+linty: CCFLAGS += -Wwrite-strings
+linty: CCFLAGS += -Waggregate-return
+linty: CCFLAGS += -Wcast-qual
+linty: CCFLAGS += -Wswitch-enum
+linty: CCFLAGS += -Wwrite-strings
+linty: CCFLAGS += -Wunreachable-code
+linty: CCFLAGS += -Winit-self
+linty: CCFLAGS += -Wpointer-arith
+linty: advent cheat
+
+# These seem to be more modern options for enabling coverage testing.
+# Documenting them here in case a future version bump disables --coverage.
+#debug: CCFLAGS += -ftest-coverage
+#debug: CCFLAGS += -fprofile-arcs
+
+debug: CCFLAGS += -O0
+debug: CCFLAGS += --coverage
+debug: CCFLAGS += -ggdb
+debug: CCFLAGS += -U_FORTIFY_SOURCE
+debug: CCFLAGS += -fsanitize=address
+debug: CCFLAGS += -fsanitize=undefined
+debug: linty
+