TARGET_DIR = ./rust/target
LIBDIR = $(TARGET_DIR)/release
STATLIB = $(LIBDIR)/libtok.a
PKG_LIBS = -L$(LIBDIR) -ltok
CARGOTMP = $(CURDIR)/.cargo

.PHONY: patch
all: C_clean patch
$(SHLIB): $(STATLIB)

$(STATLIB):
	# In some environments, ~/.cargo/bin might not be included in PATH, so we need
	# to set it here to ensure cargo can be invoked. It is appended to PATH and
	# therefore is only used if cargo is absent from the user's PATH.
	
	export PATH="$(PATH):$(HOME)/.cargo/bin" && \
		if [ "$(NOT_CRAN)" != "true" ]; then \
 			export CARGO_HOME=$(CARGOTMP); \
		fi && \
		cargo build --lib --release --manifest-path=./rust/Cargo.toml --target-dir $(TARGET_DIR)
		
	if [ "$(NOT_CRAN)" != "true" ]; then \
		rm -Rf $(CARGOTMP) && \
		rm -Rf $(LIBDIR)/build; \
	fi
		
C_clean:
	rm -Rf $(SHLIB) $(STATLIB) $(OBJECTS)

clean:
	rm -Rf $(SHLIB) $(STATLIB) $(OBJECTS) rust/target

patch: $(STATLIB)
	@echo "*** Cleaning headers"
	"${R_HOME}/bin${R_ARCH_BIN}/Rscript" "../tools/patch.R"
	
