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authorPhilippe Mathieu-Daudé <philmd@redhat.com>2020-03-06 18:04:56 +0100
committerLaurent Vivier <laurent@vivier.eu>2020-03-09 15:59:31 +0100
commit1a28f878b50f55cd5965dfb61d1e5e8009a59197 (patch)
treefb2e62dace6aa3386efb834131965a16c5ffb0c5 /rules.mak
parentbab694faedf17c2ea95d6c739b0792ec52d64cb9 (diff)
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build-sys: Move the print-variable rule to rules.mak
Currently the print-variable rule can only be used in the root directory: $ make print-vhost-user-json-y vhost-user-json-y= contrib/vhost-user-gpu/50-qemu-gpu.json tools/virtiofsd/50-qemu-virtiofsd.json $ make -C i386-softmmu print-obj-y make: Entering directory 'build/i386-softmmu' make: *** No rule to make target 'print-obj-y'. Stop. make: Leaving directory 'build/i386-softmmu' Move it to rules.mak so we can use it from other directories: $ make -C i386-softmmu print-obj-y make: Entering directory 'build/i386-softmmu' obj-y=qapi-introspect.o qapi-types-machine-target.o qapi-types-misc-target.o qapi-types.o qapi-visit-machine-target.o qapi-visit-misc-target.o qapi-visit.o qapi-events-machine-target.o qapi-events-misc-target.o qapi-events.o qapi-commands-machine-target.o qapi-commands-misc-target.o qapi-commands.o qapi-init-commands.o make: Leaving directory 'build/i386-softmmu' Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20200306170456.21977-1-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'rules.mak')
-rw-r--r--rules.mak3
1 files changed, 3 insertions, 0 deletions
diff --git a/rules.mak b/rules.mak
index e39b073..694865b 100644
--- a/rules.mak
+++ b/rules.mak
@@ -435,3 +435,6 @@ sentinel = .$(subst $(SPACE),_,$(subst /,_,$1)).sentinel.
atomic = $(eval $1: $(call sentinel,$1) ; @:) \
$(call sentinel,$1) : $2 ; @touch $$@ \
$(foreach t,$1,$(if $(wildcard $t),,$(shell rm -f $(call sentinel,$1))))
+
+print-%:
+ @echo '$*=$($*)'