[Qemu-devel] [PATCH] signrom.sh: portability fix

[Christoph Egger <Christoph.Egger@amd.com>]

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Hi!

Attached patch makes signrom.sh working on NetBSD.
The output of the 'od' command leads to a syntax error
which breaks the build.

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>

-- 
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Karl-Hammerschmidt-Str. 34, 85609 Dornach b. Muenchen
Geschaeftsfuehrer: Thomas M. McCoy, Giuliano Meroni
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632

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diff --git a/pc-bios/optionrom/signrom.sh b/pc-bios/optionrom/signrom.sh
index 263ba5f..4322811 100755
--- a/pc-bios/optionrom/signrom.sh
+++ b/pc-bios/optionrom/signrom.sh
@@ -31,9 +31,10 @@ x=`dd if="$1" bs=1 count=1 skip=2 2>/dev/null | od -t u1 -A n`
 size=$(( $x * 512 - 1 ))
 
 # now get the checksum
-for i in `od -A n -t u1 -v "$1"`; do
+nums=`od -A n -t u1 -v "$1"`
+for i in ${nums}; do
     # add each byte's value to sum
-    sum=$(( $sum + $i ))
+    sum=`expr $sum + $i`
 done
 
 sum=$(( $sum % 256 ))