[Qemu-trivial] [PATCH v2] Makefile: Do not generate files if "configure" has not been run yet

[Thomas Huth <thuth@redhat.com>]

When doing a "make -j10" in the vanilla QEMU source tree (without
running "configure first), the Makefile currently generates two
files already, qemu-version.h and qemu-options.def. This should not
happen, so let's make these targets depend on config-host.mak.
Also the targets that use python  can not be executed without the
$(PYTHON) from config-host.mak, so these should depend on the config-
host.mak file, too (these targets generate some ugly error messages
otherwise during "make -j10").

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 v2:
 - Add the dependency to the targets that use $(PYTHON) instead of
   adding it to $(qapi-py)

 Makefile | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/Makefile b/Makefile
index c830d7a..b5e0731 100644
--- a/Makefile
+++ b/Makefile
@@ -286,7 +286,7 @@ endif
 
 all: $(DOCS) $(TOOLS) $(HELPERS-y) recurse-all modules
 
-qemu-version.h: FORCE
+qemu-version.h: config-host.mak FORCE
 	$(call quiet-command, \
 		(cd $(SRC_PATH); \
 		printf '#define QEMU_PKGVERSION '; \
@@ -312,6 +312,7 @@ qemu-version.h: FORCE
 
 config-host.h: config-host.h-timestamp
 config-host.h-timestamp: config-host.mak
+qemu-options.def: config-host.mak
 qemu-options.def: $(SRC_PATH)/qemu-options.hx $(SRC_PATH)/scripts/hxtool
 	$(call quiet-command,sh $(SRC_PATH)/scripts/hxtool -h < $< > $@,"GEN","$@")
 
@@ -394,17 +395,17 @@ gen-out-type = $(subst .,-,$(suffix $@))
 qapi-py = $(SRC_PATH)/scripts/qapi.py $(SRC_PATH)/scripts/ordereddict.py
 
 qga/qapi-generated/qga-qapi-types.c qga/qapi-generated/qga-qapi-types.h :\
-$(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
+$(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py $(qapi-py) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py \
 		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
 		"GEN","$@")
 qga/qapi-generated/qga-qapi-visit.c qga/qapi-generated/qga-qapi-visit.h :\
-$(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
+$(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py \
 		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
 		"GEN","$@")
 qga/qapi-generated/qga-qmp-commands.h qga/qapi-generated/qga-qmp-marshal.c :\
-$(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
+$(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py \
 		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
 		"GEN","$@")
@@ -416,27 +417,27 @@ qapi-modules = $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/qapi/common.json \
                $(SRC_PATH)/qapi/trace.json
 
 qapi-types.c qapi-types.h :\
-$(qapi-modules) $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-types.py $(qapi-py) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py \
 		$(gen-out-type) -o "." -b $<, \
 		"GEN","$@")
 qapi-visit.c qapi-visit.h :\
-$(qapi-modules) $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py \
 		$(gen-out-type) -o "." -b $<, \
 		"GEN","$@")
 qapi-event.c qapi-event.h :\
-$(qapi-modules) $(SRC_PATH)/scripts/qapi-event.py $(qapi-py)
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-event.py $(qapi-py) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-event.py \
 		$(gen-out-type) -o "." $<, \
 		"GEN","$@")
 qmp-commands.h qmp-marshal.c :\
-$(qapi-modules) $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py \
 		$(gen-out-type) -o "." $<, \
 		"GEN","$@")
 qmp-introspect.h qmp-introspect.c :\
-$(qapi-modules) $(SRC_PATH)/scripts/qapi-introspect.py $(qapi-py)
+$(qapi-modules) $(SRC_PATH)/scripts/qapi-introspect.py $(qapi-py) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-introspect.py \
 		$(gen-out-type) -o "." $<, \
 		"GEN","$@")
@@ -703,10 +704,10 @@ qemu-img-cmds.texi: $(SRC_PATH)/qemu-img-cmds.hx $(SRC_PATH)/scripts/hxtool
 
 docs/qemu-qmp-qapi.texi docs/qemu-ga-qapi.texi: $(SRC_PATH)/scripts/qapi2texi.py $(qapi-py)
 
-docs/qemu-qmp-qapi.texi: $(qapi-modules)
+docs/qemu-qmp-qapi.texi: $(qapi-modules) config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi2texi.py $< > $@,"GEN","$@")
 
-docs/qemu-ga-qapi.texi: $(SRC_PATH)/qga/qapi-schema.json
+docs/qemu-ga-qapi.texi: $(SRC_PATH)/qga/qapi-schema.json config-host.mak
 	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi2texi.py $< > $@,"GEN","$@")
 
 qemu.1: qemu-doc.texi qemu-options.texi qemu-monitor.texi qemu-monitor-info.texi
-- 
1.8.3.1