sed: add ptest

ptest needs buildtest-TESTS and runtest-TESTS targets.
serial-tests is required to generate those targets.

And fix following error after add serial-tests.

[snip]
help2man: can't get `--help' info from ../sed/sed
make[2]: *** [sed.1] Error 2
[snip]

Upstream-Status: Inappropriate

Signed-off-by: Chong Lu <Chong.Lu@windriver.com>
---
 configure.ac          |    2 +-
 doc/Makefile.am       |    2 +-
 testsuite/Makefile.am |    6 ++++++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 9d33ec9..4f0c532 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ AC_CONFIG_AUX_DIR(build-aux)
 AC_CONFIG_SRCDIR([sed/sed.c])
 AM_CONFIG_HEADER(config.h:config_h.in)
 AC_PREREQ(2.60)
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([serial-tests])
 
 SED_FEATURE_VERSION=4.2.2
 AC_DEFINE_UNQUOTED(SED_FEATURE_VERSION, "$SED_FEATURE_VERSION",
diff --git a/doc/Makefile.am b/doc/Makefile.am
index af6975c..6fd8c9a 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -25,7 +25,7 @@ $(srcdir)/s-texi: sed-in.texi $(srcdir)/groupify.sed
 	fi
 	echo stamp > $(srcdir)/s-texi
 
-sed.1: $(top_srcdir)/sed/sed.c $(top_srcdir)/configure.ac $(srcdir)/sed.x
+_sed.1: $(top_srcdir)/sed/sed.c $(top_srcdir)/configure.ac $(srcdir)/sed.x
 	$(HELP2MAN) --name "stream editor for filtering and transforming text" \
 	  -p sed --include $(srcdir)/sed.x -o $(srcdir)/sed.1 $(SED) 
 
diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
index d80e72c..b05f01e 100644
--- a/testsuite/Makefile.am
+++ b/testsuite/Makefile.am
@@ -99,5 +99,11 @@ EXTRA_DIST = \
 # automake makes `check' depend on $(TESTS).  Declare
 # dummy targets for $(TESTS) so that make does not complain.
 
+install-ptest:
+	cd $(BUILDDIR); tar -c --exclude=*.o $(TESTDIR) | ( cd $(DESTDIR) && tar -xf - )
+	for i in $(EXTRA_DIST) tst-regex2.c; do install $(srcdir)/$$i $(DESTDIR)/$(TESTDIR); done
+	sed -e 's/^Makefile:/_Makefile:/' -e 's/^srcdir = \(.*\)/srcdir = ./' -e 's/bash/sh/' -i $(DESTDIR)/$(TESTDIR)/Makefile
+	for i in `grep -rl "../sed/sed" $(DESTDIR)/$(TESTDIR)`; do sed -e 's/..\/sed\/sed/sed/' -i $$i; done
+
 .PHONY: $(SEDTESTS)
 $(SEDTESTS):
-- 
1.7.9.5