Use man pages generated by help2man in the host build.
-diff -u -r ../coreutils-8.24/Makefile.in ./Makefile.in
---- ../coreutils-8.24/Makefile.in 2015-07-03 17:23:13.000000000 -0400
-+++ ./Makefile.in 2015-07-04 07:38:25.901795437 -0400
-@@ -14242,31 +14242,7 @@
+diff -u -r ../coreutils-8.25/Makefile.in ./Makefile.in
+--- ../coreutils-8.25/Makefile.in 2016-01-20 05:55:18.000000000 -0500
++++ ./Makefile.in 2016-01-20 17:47:11.033497974 -0500
+@@ -14385,32 +14385,7 @@
@SINGLE_BINARY_FALSE@man/yes.1: src/yes$(EXEEXT)
.x.1:
- && $(MKDIR_P) $$t \
- && (cd $$t && $(LN_S) '$(abs_top_builddir)/src/'$$prog$(EXEEXT) \
- $$argv$(EXEEXT)) \
-- && $(run_help2man) \
+- && : $${SOURCE_DATE_EPOCH=`cat $(srcdir)/.timestamp 2>/dev/null || :`} \
+- && export SOURCE_DATE_EPOCH && $(run_help2man) \
- --source='$(PACKAGE_STRING)' \
- --include=$(srcdir)/man/$$name.x \
- --output=$$t/$$name.1 \