use posix command to extract first 8 chars

[rust.git] / Makefile.in

diff --git a/Makefile.in b/Makefile.in
index e7ad2aec7be0af4be5390c40443f5f7c5262fcfa..d3bb5a541a47067e54e6838f70c687104dfa3e6b 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -76,7 +76,7 @@
 #
 #   * `CFG_ENABLE_VALGRIND=1` - Run tests under valgrind
 #   * `VALGRIND_COMPILE=1` - Run the compiler itself under valgrind
-#                            (may require `CFG_ENABLE_VALGRIND`)
+#                            (requires `CFG_ENABLE_VALGRIND`)
 #
 #   * `NO_REBUILD=1` - Don't rebootstrap when testing std
 #                      (and possibly other crates)
@@ -159,6 +159,13 @@
 #
 # Admittedly this is a little convoluted.
 #
+# If you find yourself working on the make infrastructure itself, and trying to
+# find the value of a given variable after expansion, you can use:
+#
+# make print-VARIABLE_NAME
+#
+# To extract it
+#
 # </nitty-gritty>
 #
 
@@ -259,8 +266,3 @@ ifneq ($(strip $(findstring TAGS.emacs,$(MAKECMDGOALS)) \
   CFG_INFO := $(info cfg: including ctags rules)
   include $(CFG_SRC_DIR)mk/ctags.mk
 endif
-
-# Find all of the .d files and include them to add information about
-# header file dependencies.
-ALL_DEP_FILES := $(ALL_OBJ_FILES:%.o=%.d)
--include $(ALL_DEP_FILES)