http://lists.gnu.org/archive/html/bug-ed/2008-12/msg00002.html

2008-09-03  Doug Goldstein  <cardoe@gentoo.org>
	* Make red man page a symlink instead of a hard link
	* install man pages by default

http://lists.gnu.org/archive/html/bug-ed/2008-12/msg00001.html

2007-04-16  Mike Frysinger  <vapier@gentoo.org>

	* Clean locale vars from environment to maintain a sane state.
	* Do not set CC/CXX/CPPFLAGS/LDFLAGS to "" so that user can
	  override if they so choose.
	* Only set CFLAGS/CXXFLAGS if user did not specify any.

--- ed-1.0/configure
+++ ed-1.0/configure
@@ -14,6 +14,19 @@
 progversion=1.0
 srctrigger=ed.h
 
+# NLS nuisances.
+for as_var in \
+  LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \
+  LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \
+  LC_TELEPHONE LC_TIME
+do
+  if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then
+    eval $as_var=C; export $as_var
+  else
+    unset $as_var
+  fi
+done
+
 # clear some things potentially inherited from environment.
 srcdir=
 prefix=/usr/local
@@ -24,12 +37,6 @@
 mandir='$(datadir)/man'
 sysconfdir='$(prefix)/etc'
 program_prefix=
-CC=
-CXX=
-CPPFLAGS=
-CFLAGS='-Wall -W -O2'
-CXXFLAGS='-Wall -W -O2'
-LDFLAGS=
 
 # Loop over all args
 while [ x"$1" != x ] ; do
@@ -106,6 +113,14 @@
 	esac
 done
 
+# Defaults if the user did not select any
+if [ x"${CFLAGS+set}" != xset ] ; then
+	CFLAGS='-Wall -W -O2'
+fi
+if [ x"${CXXFLAGS+set}" != xset ] ; then
+	CXXFLAGS='-Wall -W -O2'
+fi
+
 # Find the source files, if location was not specified.
 srcdirtext=
 if [ x"${srcdir}" = x ] ; then
--- ed-1.0/Makefile.in
+++ ed-1.0/Makefile.in
@@ -44,11 +44,11 @@
 check : $(progname) $(VPATH)/testsuite/check.sh
 	@$(VPATH)/testsuite/check.sh $(VPATH)/testsuite
 
-install : all install-info
+install : all install-info install-man
 	if test ! -d $(DESTDIR)$(bindir) ; then $(INSTALL) -d $(DESTDIR)$(bindir) ; fi
 	$(INSTALL_PROGRAM) ./$(progname) $(DESTDIR)$(bindir)/$(program_prefix)$(progname)
 	-rm -f $(DESTDIR)$(bindir)/$(program_prefix)r$(progname)
-	cd $(DESTDIR)$(bindir) ; ln $(program_prefix)$(progname) $(program_prefix)r$(progname)
+	cd $(DESTDIR)$(bindir) ; ln -s $(program_prefix)$(progname) $(program_prefix)r$(progname)
 
 install-info :
 	if test ! -d $(DESTDIR)$(infodir) ; then $(INSTALL) -d $(DESTDIR)$(infodir) ; fi
@@ -59,7 +59,7 @@
 	if test ! -d $(DESTDIR)$(mandir)/man1 ; then $(INSTALL) -d $(DESTDIR)$(mandir)/man1 ; fi
 	$(INSTALL_DATA) $(VPATH)/doc/$(progname).1 $(DESTDIR)$(mandir)/man1/$(program_prefix)$(progname).1
 	-rm -f $(DESTDIR)$(mandir)/man1/$(program_prefix)r$(progname).1
-	cd $(DESTDIR)$(mandir)/man1 ; ln $(program_prefix)$(progname).1 $(program_prefix)r$(progname).1
+	cd $(DESTDIR)$(mandir)/man1 ; ln -s $(program_prefix)$(progname).1 $(program_prefix)r$(progname).1
 
 install-strip : all
 	$(MAKE) INSTALL_PROGRAM='$(INSTALL_PROGRAM) -s' install