diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 01d8515d1de..c0415a6d0de 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-fecb92bda0aa6d70c89d14635ff568df77d2bb5f
+178c00f929e6268f24f0c9dd9eb69d3d14d8096e
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/libgo/mksigtab.sh b/libgo/mksigtab.sh
index 2b07dd491b1..c68b28be3af 100644
--- a/libgo/mksigtab.sh
+++ b/libgo/mksigtab.sh
@@ -29,7 +29,7 @@ addsig() {
     echo "	$1: $2,"
     # Get the signal number and add it to SIGLIST
     signum=`grep "const $1 = " gen-sysinfo.go | sed -e 's/.* = //'`
-    if echo "$signum" | grep -q '^_SIG[A-Z0-9_]*$'; then
+    if echo "$signum" | grep '^_SIG[A-Z0-9_]*$' >/dev/null 2>&1; then
         # Recurse once to obtain signal number
         # This is needed for some MIPS signals defined as aliases of other signals
         signum=`grep "const $signum = " gen-sysinfo.go | sed -e 's/.* = //'`