From 46547f80242c629d20a68e45a69359990cfd627b Mon Sep 17 00:00:00 2001
From: Ken Raeburn <raeburn@mit.edu>
Date: Wed, 11 Sep 2002 02:58:24 +0000
Subject: [PATCH] Move all depfix2.sed generation into depgen.sed, so ".." in
 $(srcdir) and $(BUILDTOP) can be properly quoted, and won't match names like
 "ss".

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@14837 dc483132-0cff-0310-8789-dd5450dbe970
---
 src/config/post.in  |  9 +-----
 src/util/ChangeLog  |  5 ++++
 src/util/depgen.sed | 68 ++++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 70 insertions(+), 12 deletions(-)

diff --git a/src/config/post.in b/src/config/post.in
index 7a08e857b..337a003e1 100644
--- a/src/config/post.in
+++ b/src/config/post.in
@@ -23,14 +23,7 @@ ALL_DEP_SRCS= $(SRCS) $(EXTRADEPSRCS)
 # directory-specific parameters.  General substitutions independent of local
 # make variables happen in depfix.sed.
 depfix2.sed: Makefile $(SRCTOP)/util/depgen.sed
-	echo '# automatically generated, do not edit'	>  depfix2.tmp
-	echo 's;///*;/;g'				>> depfix2.tmp
-	echo 's; \./; ;g'				>> depfix2.tmp
-	echo 's; $(SRCTOP)/; $$(SRCTOP)/;g'		>> depfix2.tmp
-	echo 's; $(srcdir)/; $$(srcdir)/;g'		>> depfix2.tmp
-	echo 's; $$(srcdir)/\.\./; $(srcdir)/../;g'	>> depfix2.tmp
-	echo '$(SRCTOP)' '$(myfulldir)' | sed -f $(SRCTOP)/util/depgen.sed >> depfix2.tmp
-	echo 's; $(BUILDTOP)/; $$(BUILDTOP)/;g'		>> depfix2.tmp
+	echo '$(SRCTOP)' '$(myfulldir)' '$(srcdir)' '$(BUILDTOP)' | sed -f $(SRCTOP)/util/depgen.sed > depfix2.tmp
 	mv -f depfix2.tmp depfix2.sed
 
 DEPLIBOBJNAMEFIX = sed -e 's;^\$$(OUTPRE)\([a-zA-Z0-9_\-]*\)\.\$$(OBJEXT):;\1.so \1.po &;'
diff --git a/src/util/ChangeLog b/src/util/ChangeLog
index 3607d71cf..2c62f8f30 100644
--- a/src/util/ChangeLog
+++ b/src/util/ChangeLog
@@ -1,3 +1,8 @@
+2002-09-10  Ken Raeburn  <raeburn@mit.edu>
+
+	* depgen.sed: Now expects four values passed in; generates
+	complete sed script, with quoting for ".." in pathnames.
+
 2002-09-03  Ken Raeburn  <raeburn@mit.edu>
 
 	* reconf: Give up if autoreconf fails.
diff --git a/src/util/depgen.sed b/src/util/depgen.sed
index ca920f3a9..86ed7edc6 100644
--- a/src/util/depgen.sed
+++ b/src/util/depgen.sed
@@ -1,4 +1,4 @@
-# input srctop myfulldir
+# input srctop myfulldir srcdir buildtop
 # something like ../../../../asrc/lib/krb5/asn.1/../../../ lib/krb5/asn.1
 # 
 # output a sequence of sed commands for recognizing and replacing srctop,
@@ -11,6 +11,48 @@
 # s; $(SRCTOP)/lib/krb5/; $(srcdir)/../;g
 # ...
 
+# Output some mostly-fixed patterns first
+h
+s|^\([^ ]*\) \([^ ]*\) \([^ ]*\) \([^ ]*\)$|# This file is automatically generated by depgen.sed, do not edit it.\
+#\
+# Parameters used to generate this instance:\
+#\
+# SRCTOP = \1\
+# thisdir = \2\
+# srcdir = \3\
+# BUILDTOP = \4\
+#\
+\
+# First, remove redundant leading "//" and "./" ...\
+s;///*;/;g\
+s; \\./; ;g\
+\
+# Recognize $(SRCTOP) and make it a variable reference.\
+# (Is this step needed, given the substitutions below?)|p
+x
+
+h
+s/ .*$//
+s,\.,\\.,g
+s,^,s; ,
+s,$,/; $(SRCTOP)/;g,
+p
+x
+
+# now recognize $(srcdir) and make it a variable reference
+# too, unless followed by "/../"
+h
+s/^[^ ]* [^ ]* //
+s/[^ ]*$//
+s/\./\\./g
+s|^\(.*\)$|\
+# Now make $(srcdir) variable references, unless followed by "/../".\
+s; \1/; $(srcdir);g\
+s; $(srcdir)/\.\./; \1/../;\
+\
+# Recognize variants of $(SRCTOP).|p
+x
+
 # just process first "word"
 h
 s/ .*$//
@@ -35,9 +77,17 @@ bloop
 }
 p
 
+x
+h
+s|^.*$|\
+# Now try to produce pathnames relative to $(srcdir).|
+p
+
 # now process second "word"
 x
-s/^.* //
+h
+s/^[^ ]* //
+s/ [^ ]* [^ ]*$//
 
 # treat "." specially
 /^\.$/{
@@ -53,8 +103,18 @@ s,$,/; $(srcdir)/;g,
 p
 # strip trailing dirname off first part; append "../" to second part
 s,/[a-z][a-zA-Z0-9_.\-]*/; ,/; ,
-s,/;g,/../;g,
+s,/;g,/\.\./;g,
 bloop2
 }
+
+x
+s/^[^ ]* [^ ]* [^ ]* //
+s/\./\\./g
+s|\(^.*$\)|\
+# Now substitute for BUILDTOP:\
+s; \1/; $(BUILDTOP)/;g|
+p
+
 # kill implicit print at end; don't change $(SRCTOP) into .. sequence
-d
+s/^.*$/\
+# end of sed code generated by depgen.sed/
-- 
2.26.2