--- gcc-7.2.0/libstdc++-v3/include/Makefile.am.orig     2017-10-27 15:30:16.000000000 +1100
+++ gcc-7.2.0/libstdc++-v3/include/Makefile.am  2017-10-27 15:34:00.000000000 +1100
@@ -22,6 +22,8 @@

 include $(top_srcdir)/fragment.am

+LN_S = cp
+
 # Standard C++ includes.
 std_srcdir = ${glibcxx_srcdir}/include/std
 std_builddir = .
--- gcc-7.2.0/libstdc++-v3/include/Makefile.in.orig     2017-10-27 15:33:44.000000000 +1100
+++ gcc-7.2.0/libstdc++-v3/include/Makefile.in  2017-10-27 15:34:05.000000000 +1100
@@ -163,7 +163,7 @@
 LIBS = @LIBS@
 LIBTOOL = @LIBTOOL@
 LIPO = @LIPO@
-LN_S = @LN_S@
+LN_S = cp
 LONG_DOUBLE_COMPAT_FLAGS = @LONG_DOUBLE_COMPAT_FLAGS@
 LTLIBICONV = @LTLIBICONV@
 LTLIBOBJS = @LTLIBOBJS@