[Qemu-devel] [PATCH] Makefile.objs: add dummy rule for .dsl files

[Michael S. Tsirkin]

.hex files are created from .dsl files, so
cpp adds the dependency %.hex: %.dsl automatically,
but fails to add a dummy rule so if .dsl
file is missing, make will fail.

This happened to us in the past when we
removed some dsl files.

Create an extra .d file with a dummy dependency.

Cc: Peter Maydell <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
 hw/i386/Makefile.objs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs
index 45b90a8..7a47914 100644
--- a/hw/i386/Makefile.objs
+++ b/hw/i386/Makefile.objs
@@ -19,6 +19,7 @@ iasl-option=$(shell if test -z "`$(1) $(2) 2>&1 > /dev/null`" 
\
 ifdef IASL
 #IASL Present. Generate hex files from .dsl
 hw/i386/%.hex: $(SRC_PATH)/hw/i386/%.dsl 
$(SRC_PATH)/scripts/acpi_extract_preprocess.py 
$(SRC_PATH)/scripts/acpi_extract.py
+       $(call quiet-command, echo "$<:" > "$@"-extra.d, "  DEP $@")
        $(call quiet-command, $(CPP) -x c -P $(QEMU_DGFLAGS) $(QEMU_INCLUDES) 
$< -o $*.dsl.i.orig, "  CPP $(TARGET_DIR)$*.dsl.i.orig")
        $(call quiet-command, $(PYTHON) 
$(SRC_PATH)/scripts/acpi_extract_preprocess.py $*.dsl.i.orig > $*.dsl.i, "  
ACPI_PREPROCESS $(TARGET_DIR)$*.dsl.i")
        $(call quiet-command, $(IASL) $(call iasl-option,$(IASL),-Pn,) -vs -l 
-tc -p $* $*.dsl.i $(if $(V), , > /dev/null) 2>&1 ,"  IASL 
$(TARGET_DIR)$*.dsl.i")
-- 
MST