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-rw-r--r--tools/Makefile31
1 files changed, 14 insertions, 17 deletions
diff --git a/tools/Makefile b/tools/Makefile
index e24044d17..f2e4bafbf 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -27,23 +27,20 @@ $(STAGING_DIR)/.prepared: $(TMP_DIR)/.build
$(INSTALL_DATA) $(TOPDIR)/tools/include/*.h $(STAGING_DIR_HOST)/include/
touch $@
-$(STAGING_DIR_HOST)/bin/md5sum: $(STAGING_DIR)/.prepared
- @MD5SUM=`which md5sum 2>/dev/null`; \
- if [ "$@" != "$$MD5SUM" ]; then \
- if [ -x "$$MD5SUM" ]; then \
- ln -sf "$$MD5SUM" "$@"; \
- else \
- cp $(SCRIPT_DIR)/md5sum $(STAGING_DIR_HOST)/bin/; \
- fi; \
- fi
-
-$(STAGING_DIR_HOST)/bin/find: $(STAGING_DIR)/.prepared
- if [ -x "$(FIND)" -a "$(FIND)" != "$@" ]; then \
- ln -sf "$(FIND)" $@; \
- fi
-
-
-$(curdir)/cmddeps = $(patsubst %,$(STAGING_DIR_HOST)/bin/%,find md5sum)
+define PrepareCommand
+$(STAGING_DIR_HOST)/bin/$(1): $(STAGING_DIR)/.prepared
+ @mkdir -p "$$(dir $$@)"; rm -f "$$@"
+ @export FILE="$$$$(which $(2) 2>/dev/null | grep -v 'not found' | head -n1)"; [ -n "$$$$FILE" ] || { \
+ echo "Command $(1) not found."; false; \
+ }; ln -s "$$$$FILE" "$$@"
+
+endef
+
+$(eval $(call PrepareCommand,find,gfind find))
+$(eval $(call PrepareCommand,md5sum,md5sum $(SCRIPT_DIR)/md5sum))
+$(eval $(call PrepareCommand,cp,gcp cp))
+
+$(curdir)/cmddeps = $(patsubst %,$(STAGING_DIR_HOST)/bin/%,find md5sum cp)
$(curdir)//prepare = $(STAGING_DIR)/.prepared $($(curdir)/cmddeps)
$(curdir)//compile = $(STAGING_DIR)/.prepared $($(curdir)/cmddeps)