On Tue, Sep 20, 2005 at 02:02:24PM -0400, Peter Prymmer wrote:
> By the way, why is `false` desirable to have in a Makefile?
> Why does MakeMaker need to know how to do it?
It appears it wants to make sure certain targets fail when the commands
themselves don't necessarily exit with non-zero. Its the make equivalent of
"return 0". There's only three occurances of this. One is specific to OS/2.
One is in MM_Unix->perldepend which appears to be unused.
Only this one is actually used in day-to-day Makefiles but it only happens
if the Makefile.PL is newer than the Makefile, so its not critical code.
# --- MakeMaker makefile section:
# We take a very conservative approach here, but it's worth it.
# We move Makefile to Makefile.old here to avoid gnu make looping.
$(FIRST_MAKEFILE) : Makefile.PL $(CONFIGDEP)
$(NOECHO) $(ECHO) "Makefile out-of-date with respect to $?"
$(NOECHO) $(ECHO) "Cleaning current config before rebuilding Makefile...
"
-$(NOECHO) $(RM_F) $(MAKEFILE_OLD)
-$(NOECHO) $(MV) $(FIRST_MAKEFILE) $(MAKEFILE_OLD)
- $(MAKE) $(USEMAKEFILE) $(MAKEFILE_OLD) clean $(DEV_NULL)
$(PERLRUN) Makefile.PL
$(NOECHO) $(ECHO) "==> Your Makefile has been rebuilt. <=="
$(NOECHO) $(ECHO) "==> Please rerun the $(MAKE) command. <=="
false
--
Michael G Schwern [EMAIL PROTECTED] http://www.pobox.com/~schwern
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http://somethingpositive.net/sp07122005.shtml
