BASEDIR=$(shell pwd)
+define checksum
+@if grep -q ' $(subst .,\.,$(1))$$' SHA256SUMS; then \
+ grep ' $(subst .,\.,$(1))$$' SHA256SUMS | sha256sum -c; \
+else \
+ echo "WARNING: no checksum defined for $(1)"; \
+fi
+endef
+
all: gcc
src/$(BINUTILS_TAR):
wget -P src $(BINUTILS_URL)
+ $(call checksum,$@)
src/$(NEWLIB_TAR):
wget -P src $(NEWLIB_URL)
+ $(call checksum,$@)
src/$(GCC_TAR):
wget -P src $(GCC_URL)
+ $(call checksum,$@)
src/binutils-$(BINUTILS_VER): src/$(BINUTILS_TAR)
tar -C src -xf $<