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

[Thomas Huth]

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 python files can not be executed without $(PYTHON), so
these scripts should depend on config-host.mak, too.

Signed-off-by: Thomas Huth <address@hidden>
---
 Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index c830d7a..6786dc2 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 < $< > 
$@,"GEN","$@")
 
@@ -393,6 +394,8 @@ gen-out-type = $(subst .,-,$(suffix $@))
 
 qapi-py = $(SRC_PATH)/scripts/qapi.py $(SRC_PATH)/scripts/ordereddict.py
 
+$(qapi-py): config-host.mak
+
 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)
        $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py \
-- 
1.8.3.1