Add iasl to buldgcc and rev the version.

Change-Id: If9144cdf088f16bc3974a1784a442a1fd12ac75b
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: http://review.coreboot.org/147
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

util/xcompile/xcompile

@@ -35,13 +35,14 @@ for make in make gmake gnumake; do
 done
 
 GCCPREFIX=invalid
+XGCCPATH="`pwd`/util/crossgcc/xgcc/bin/"
 TMPFILE=`mktemp /tmp/temp.XXXX 2>/dev/null || echo /tmp/temp.78gOIUGz`
 touch $TMPFILE
 
 # This should be a loop over all supported architectures
 TARCH=i386
 TWIDTH=32
-for gccprefixes in `pwd`/util/crossgcc/xgcc/bin/${TARCH}-elf- ${TARCH}-elf- ""; do
+for gccprefixes in ${XGCCPATH}${TARCH}-elf- ${TARCH}-elf- ""; do
 	if ! which ${gccprefixes}as 2>/dev/null >/dev/null; then
 		continue
 	fi
@@ -85,6 +86,12 @@ else
 	HOSTCC=cc
 fi
 
+if [ "`${XGCCPATH}/iasl 2>/dev/null | grep -c ACPI`" -gt 0 ]; then
+	IASL=${XGCCPATH}iasl
+else
+	IASL=iasl
+fi
+
 cat << EOF
 # elf${TWIDTH}-${TARCH} toolchain
 AS:=${GCCPREFIX}as ${ASFLAGS}
@@ -96,6 +103,8 @@ NM:=${GCCPREFIX}nm
 OBJCOPY:=${GCCPREFIX}objcopy
 OBJDUMP:=${GCCPREFIX}objdump
 
+IASL:=${IASL}
+
 # native toolchain
 HOSTCC:=${HOSTCC}
 EOF