message: Variable for weakened symbols, weaken umodti3
diff: @@ -41,6 +41,15 @@ SRC=\
  Cargo.* \
  $(shell find src -type f)
  +# FIXME: Remove the following line. It's only required since xargo automatically links with compiler_builtins, which conflicts with the compiler_builtins that rustc always links with.
  +WEAKEN_SYMBOLS=\
  + -W __divti3 \
  + -W __fixdfti \
  + -W __floattidf \
  + -W __muloti4 \
  + -W __udivti3 \
  + -W __umodti3
  +
  .PHONY: all clean fmt install install-headers libs test
  all: | libs
  @@ -115,7 +124,7 @@ $(BUILD)/debug/libc.so: $(BUILD)/debug/librelibc.a $(BUILD)/pthreads-emb/libpthr
  $(BUILD)/debug/librelibc.a: $(SRC)
  CARGO_INCREMENTAL=0 $(CARGO) rustc $(CARGOFLAGS) -- --emit link=$@ $(RUSTCFLAGS)
  # FIXME: Remove the following line. It's only required since xargo automatically links with compiler_builtins, which conflicts with the compiler_builtins that rustc always links with.
  - $(OBJCOPY) $@ -W __divti3 -W __muloti4 -W __udivti3 -W __floattidf -W __fixdfti
  + $(OBJCOPY) $@ $(WEAKEN_SYMBOLS)
  touch $@
  $(BUILD)/debug/crt0.o: $(SRC)
  @@ -153,8 +162,7 @@ $(BUILD)/release/libc.so: $(BUILD)/release/librelibc.a $(BUILD)/pthreads-emb/lib
  $(BUILD)/release/librelibc.a: $(SRC)
  CARGO_INCREMENTAL=0 $(CARGO) rustc --release $(CARGOFLAGS) -- --emit link=$@ $(RUSTCFLAGS)
  - # FIXME: Remove the following line. It's only required since xargo automatically links with compiler_builtins, which conflicts with the compiler_builtins that rustc always links with.
  - $(OBJCOPY) $@ -W __divti3 -W __muloti4 -W __udivti3 -W __floattidf -W __fixdfti
  + $(OBJCOPY) $@ $(WEAKEN_SYMBOLS)
  touch $@
  $(BUILD)/release/crt0.o: $(SRC)
  