use -nostdlib in linker tests to avoid possible missing crt/lib issues

configure

@@ -70,7 +70,7 @@ fi
 tryldflag () {
 printf "checking whether linker accepts %s... " "$2"
 echo "typedef int x;" > "$tmpc"
-if "$CC" -shared "$2" -o /dev/null "$tmpc" 2>/dev/null ; then
+if "$CC" -nostdlib -shared "$2" -o /dev/null "$tmpc" 2>/dev/null ; then
 printf "yes\n"
 eval "$1=\"\${$1} \$2\""
 eval "$1=\${$1# }"