Hello,
Le Thu, 16 May 2013 06:07:32 +0200, David Tardon <dtar...@redhat.com> a
écrit:
Hi,
On Thu, May 16, 2013 at 01:22:10AM +0200, Mat M wrote:
Hello
I have a GNU make question, actually:
How this should be read ?
$(dir $(call gb_AutoInstallLibs_get_target,%)).dir :
$(if $(wildcard $(dir $@)),,mkdir -p $(dir $@))
We use rules to automatically create directory hierarchies for file
targets in gbuild. This is the rule for creating the top-level directory
of the AutoInstallLibs class in $(WORKDIR). There is a line like
So I was right in my reading, ty.
$(call gb_AutoInstallLibs_get_target,$(1)) :| $(dir $(call
gb_AutoInstallLibs_get_target,$(1))).dir
elsewhere in the makefile, that creates the (order-only) dependency.
Note that $(dir $(call gb_AutoInstallLibs_get_target,%)).dir expands to
$(WORKDIR)/AutoInstallLibs/.dir , so this is not a pattern rule. If
there were any hierarchy needed in the directory, the rule would be
accompanied by
$(dir $(call gb_AutoInstallLibs_get_target,%))%/.dir :
$(if $(wildcard $(dir $@)),,mkdir -p $(dir $@))
Then what is the purpose of the % in the $(call and the $(1) btw, since
get_target already knows until AIL ?
Is it just so all get_target vars are built in the same way ? Even if this
is the case the % is a mystery for me.
Regards
--
Mat M
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