diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 4b75dd373556..737bc483274e 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-a409e049737ec9a358a19233e017d957db3d6d2a
+77821de1a149c2e6ef9c154ae384c16292173039
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/libgo/configure b/libgo/configure
index b7ff9b32867f..61a49947eb94 100755
--- a/libgo/configure
+++ b/libgo/configure
@@ -15549,7 +15549,10 @@ fi
 
 CFLAGS_hold="$CFLAGS"
 CFLAGS="$OSCFLAGS $CFLAGS"
-ac_fn_c_check_type "$LINENO" "loff_t" "ac_cv_type_loff_t" "#include <fcntl.h>
+ac_fn_c_check_type "$LINENO" "loff_t" "ac_cv_type_loff_t" "
+#include <sys/types.h>
+#include <fcntl.h>
+
 "
 if test "x$ac_cv_type_loff_t" = xyes; then :
 
diff --git a/libgo/configure.ac b/libgo/configure.ac
index bac58b07b41c..274fcfc35c77 100644
--- a/libgo/configure.ac
+++ b/libgo/configure.ac
@@ -604,7 +604,10 @@ AC_TYPE_OFF_T
 
 CFLAGS_hold="$CFLAGS"
 CFLAGS="$OSCFLAGS $CFLAGS"
-AC_CHECK_TYPES([loff_t], [], [], [[#include <fcntl.h>]])
+AC_CHECK_TYPES([loff_t], [], [], [[
+#include <sys/types.h>
+#include <fcntl.h>
+]])
 CFLAGS="$CFLAGS_hold"
 
 LIBS_hold="$LIBS"