Fix cross-package dependency generation on Windows

diff --git a/rules/build-dependencies.mk b/rules/build-dependencies.mk
index 5cc91dc..f896b9f 100644 (file)
--- a/rules/build-dependencies.mk
+++ b/rules/build-dependencies.mk
@@ -40,7 +40,10 @@ ifneq "$$($1_$2_SLASH_MODS)" ""
                if test ! -d $$$$dir; then mkdir -p $$$$dir; fi \
        done
 endif
-       mv $$@.tmp $$@
+#    Some packages are from the bootstrapping compiler, so are not
+#    within the build tree. On Windows this causes a problem as they look
+#    like bad rules, due to the two colons, so we filter them out.
+       grep -v ' : [a-zA-Z]:/' $$@.tmp > $$@
 
 # Some of the C files depend on the generated includes files.
 $$($1_$2_depfile_c_asm) : $$(includes_H_CONFIG) $$(includes_H_PLATFORM)