Chris Bitmead writes:
> Certainly the pgsql makefiles are broken for parallel make.
I think of "broken" for parallel make if it doesn't work at all, which
certainly needs to be fixed. "Unsupportive" of parallel make are things
like this:
DIRS := initdb initlocation ipcclean pg_ctl pg_dump pg_id \ pg_passwd pg_version psql scripts
all: @for dir in $(DIRS); do $(MAKE) -C $$dir $@ || exit 1; done
because no matter how smart make is, the loop will still execute
sequentially.
But parallel make can co-exist with recursive make, like this:
DIRS := initdb initlocation ipcclean pg_ctl pg_dump pg_id \ pg_passwd pg_version psql
scripts
all: $(DIRS:%=%-all-recursive)
.PHONY: $(DIRS:%=%-all-recursive)
$(DIRS:%=%-all-recursive):$(MAKE) -C $(subst -all-recursive,,$@) all
Then again, if you want faster builds, use -pipe. I'd like to make that
the default but I haven't found a reliable way to test for it. GCC doesn't
reject invalid switches in a detectable manner.
--
Peter Eisentraut Sernanders väg 10:115
peter_e@gmx.net 75262 Uppsala
http://yi.org/peter-e/ Sweden
