fix: use CC instead of LD, and deprecate LD

this is a bit confusing, since setting `LD=cc` would have the same
issue; `ld: -f may not be used without -shared`. So I've got no idea
what is going wrong, I guess it's something funky.
This works, so we shall stick with this.

.github/workflows/ci.yaml

@@ -25,12 +25,13 @@ jobs:
         if: runner.os == 'Linux'
         run: |
           sudo apt update
-          sudo apt install -y libwayland-dev libxkbcommon-dev xorg-dev cmake
+          sudo apt install -y libwayland-dev libxkbcommon-dev xorg-dev cmake xxd
 
       - uses: actions/cache@v4
         with:
           path: lib/obj/
           # I swear to god, if runner.arch displays x64 for x86_64, I will eat a potato.
+          # note: it is... fucking shit.
           key: ${{runner.os}}_${{runner.arch}}-lib/obj-${{github.sha}}
           restore-keys: ${{runner.os}}_${{runner.arch}}-lib/obj-
       - run: make -Bj libs

Makefile

@@ -5,7 +5,6 @@
 NAME    = mcaselector-lite
 DEBUG   ?= 0
 CC      ?= cc
-LD      ?= cc
 
 # setting default compilation flags
 # some of which are able to be overwritten, others are always appended
@@ -49,11 +48,16 @@ all: bin/$(NAME)
 libs: lib/obj/glfw/ lib/obj/libarchive/
 test: bin/TEST_$(NAME); bin/TEST_$(NAME)
 clean:
-	@[ -d bin/ ] && rm -vr bin/ || true
-	@[ -d obj/ ] && rm -vr obj/ || true
+ifneq ($(wildcard bin/),)
+	rm -vr bin/
+endif
+ifneq ($(wildcard obj/),)
+	rm -vr obj/
+endif
 clean-libs:
-	@[ -d lib/obj/ ] && rm -vr lib/obj/ || true
-
+ifneq ($(wildcard lib/obj/),)
+	rm -vr lib/obj/
+endif
 
 # compiles the libraries using cmake
 lib/obj/%/: lib/%/
@@ -64,18 +68,18 @@ lib/obj/%/: lib/%/
 bin/$(NAME): $(OBJ)
 	$(info [LD]	$@)
 	@mkdir -p $(@D)
-	@$(LD) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+	@$(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
 
 # link together a testing binary
 bin/TEST_$(NAME): $(TOBJ) $(filter-out obj/src/main.o,$(OBJ))
 	$(info [LD]	$@)
 	@mkdir -p $(@D)
-	@$(LD) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+	@$(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
 
 obj/res/%.c: res/%
 	$(info [XXD]	$@)
 	@mkdir -p $(@D)
-	@xxd -i -n $(patsubst res/%,%,$<) $< $@
+	@cd res/ && xxd -i $(patsubst res/%,%,$<) $(abspath $@)
 
 obj/res/%.o: obj/res/%.c
 	$(info [CC]	$@)