From 51755c3b5ed9dcdfdef8cee56631d68642bde416 Mon Sep 17 00:00:00 2001
From: Kevin O'Connor <kevin@koconnor.net>
Date: Wed, 29 Aug 2012 21:27:37 -0400
Subject: [PATCH] Make iasl option check work with older versions of iasl.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 72ee152..45ea48a 100644
--- a/Makefile
+++ b/Makefile
@@ -221,7 +221,7 @@ $(OUT)vgabios.bin: $(OUT)vgabios.bin.raw tools/buildrom.py
 
 ################ DSDT build rules
 
-iasl-option=$(shell if "$(1)" "$(2)" -h > /dev/null 2>&1 \
+iasl-option=$(shell if test -z "`$(1) $(2) 2>&1 > /dev/null`" \
     ; then echo "$(2)"; else echo "$(3)"; fi ;)
 
 $(OUT)%.hex: src/%.dsl ./tools/acpi_extract_preprocess.py ./tools/acpi_extract.py
-- 
2.39.5