seabios: remove iasl output file when error.

Surprisingly iasl creates output file even when compilation error.
So typing make after an error will succeed.
This patch prevents it by removing the output file when error.
And adds related dependencies to compile when .hex is missing.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>

diff --git a/Makefile b/Makefile
index 72d711dd679e3b5d5d019da033f9e080690c9184..927999c8fc60bafbfdd4ca12d558a7d125588853 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -184,11 +184,13 @@ $(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
        $(Q)./tools/buildrom.py $< $@
 
 ####### dsdt build rules
-src/acpi-dsdt.hex: src/acpi-dsdt.dsl
+src/%.hex: src/%.dsl
        @echo "Compiling DSDT"
-       $(Q)cpp -P $< > $(OUT)acpi-dsdt.dsl.i
-       $(Q)iasl -tc -p $@ $(OUT)acpi-dsdt.dsl.i
-       $(Q)rm $(OUT)acpi-dsdt.dsl.i
+       $(Q)cpp -P $< > $(OUT)$*.dsl.i
+       $(Q)iasl -tc -p $(OUT)$* $(OUT)$*.dsl.i
+       $(Q)cp $(OUT)$*.hex $@
+
+$(OUT)ccode32flat.o: src/acpi-dsdt.hex
 
 ####### Generic rules
 clean: