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[build] Avoid unnecessary "rm" and "touch" in dependency generation

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Speed up dependency generation by omitting the totally unnecessary
"rm" and "touch" commands.  This reduces the time taken to generate
dependencies by around 6%.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2010-07-14 16:14:29 +01:00
parent 8ee6d216e4
commit 4d73b49d60
1 changed files with 1 additions and 5 deletions
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6
src/Makefile.housekeeping
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@ -466,11 +466,9 @@ define src_template
@$(ECHO) " [DEPS] $(1)"
@$(MKDIR) -p $(dir $(2))
@$(RM) $(2)
@$(TOUCH) $(2)
@$(CPP) $(CFLAGS) $(CFLAGS_$(3)) $(CFLAGS_$(4)) -DOBJECT=$(4) \
-Wno-error -M $(1) -MG -MP | \
sed 's/\.o\s*:/_DEPS =/' >> $(2)
sed 's/\.o\s*:/_DEPS =/' > $(2)
@$(ECHO_E) '\n$$(BIN)/$(4).o :' \
'$(1) $$(MAKEDEPS) $$(POST_O_DEPS) $$($(4)_DEPS)' \
'\n\t$$(QM)$(ECHO) " [BUILD] $$@"' \
@ -815,8 +813,6 @@ define media_template
@$(ECHO) " [MEDIADEPS] $(1)"
@$(MKDIR) -p $(dir $(2))
@$(RM) $(2)
@$(TOUCH) $(2)
@$(ECHO_E) '$$(BIN)/%.$(1) : $$(BIN)/%.$(1).zbin' \
'\n\t$$(QM)$(ECHO) " [FINISH] $$@"' \
'\n\t$$(Q)$$(CP) $$< $$@' \