[PATCH] scsi: aic7xxx: fix firmware build fatal error

[Wang Jinchao <wangjinchao@xfusion.com>]

When building with CONFIG_AIC7XXX_BUILD_FIRMWARE=y, two fatal errors
are reported as shown below:
> aicasm_gram.tab.c:203:10: fatal error: aicasm_gram.tab.h:
> No such file or directory
> aicasm_macro_gram.tab.c:167:10: fatal error: aicasm_macro_gram.tab.h:
> No such file or directory
Fix these issues to make randconfig builds more reliable.

Signed-off-by: Wang Jinchao <wangjinchao@xfusion.com>
---
 drivers/scsi/aic7xxx/aicasm/Makefile | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/aic7xxx/aicasm/Makefile b/drivers/scsi/aic7xxx/aicasm/Makefile
index 243adb0a38d1..a3f2357a3f08 100644
--- a/drivers/scsi/aic7xxx/aicasm/Makefile
+++ b/drivers/scsi/aic7xxx/aicasm/Makefile
@@ -61,23 +61,11 @@ $(OUTDIR)/aicdb.h:
 clean:
 	rm -f $(clean-files)
 
-# Create a dependency chain in generated files
-# to avoid concurrent invocations of the single
-# rule that builds them all.
-$(OUTDIR)/aicasm_gram.c: $(OUTDIR)/aicasm_gram.h
 $(OUTDIR)/aicasm_gram.c $(OUTDIR)/aicasm_gram.h: aicasm_gram.y
-	$(YACC) $(YFLAGS) -b $(<:.y=) $<
-	mv $(<:.y=).tab.c $(OUTDIR)/$(<:.y=.c)
-	mv $(<:.y=).tab.h $(OUTDIR)/$(<:.y=.h)
-
-# Create a dependency chain in generated files
-# to avoid concurrent invocations of the single
-# rule that builds them all.
-$(OUTDIR)/aicasm_macro_gram.c: $(OUTDIR)/aicasm_macro_gram.h
+	$(YACC) $(YFLAGS) -b $(<:.y=) $< -o $(OUTDIR)/$(<:.y=.c)
+
 $(OUTDIR)/aicasm_macro_gram.c $(OUTDIR)/aicasm_macro_gram.h: aicasm_macro_gram.y
-	$(YACC) $(YFLAGS) -b $(<:.y=) -p mm $<
-	mv $(<:.y=).tab.c $(OUTDIR)/$(<:.y=.c)
-	mv $(<:.y=).tab.h $(OUTDIR)/$(<:.y=.h)
+	$(YACC) $(YFLAGS) -b $(<:.y=) -p mm $< -o $(OUTDIR)/$(<:.y=.c)
 
 $(OUTDIR)/aicasm_scan.c: aicasm_scan.l
 	$(LEX) $(LFLAGS) -o $@ $<
-- 
2.40.0