various changes in building techdoc.tex:

- make table of contents, footnotes etc. clickable hyperlinks
- use timestamp of techdoc.tex (instead of build time) as creationdate
  in the PDF metadata
- don't include build date on first page of the PDF
- make clean:
  - delete techdoc.out (created by pdftex)
  - fix deletion of techdoc.txt (was techdo_r_.txt)

The initial target was to get reproduceable PDF builds (therefore the 
timestamp-related changes), the other things came up during discussing
this patch with David Haller.

The only remaining difference in the PDF from build to build is the /ID
line.  This line can't be controlled in pdflatex and is now filtered 
out by build-compare in the openSUSE build service (bnc#760867).

Credits go to David Haller for writing large parts of this patch
(but he didn't notice the techdo_r_.txt ;-)


Signed-Off-By: Christian Boltz <apparmor@cboltz.de>

parser/Makefile

@@ -118,7 +118,8 @@ po/${NAME}.pot: ${SRCS} ${HDRS}
 	$(MAKE) -C po ${NAME}.pot NAME=${NAME} SOURCES="${SRCS} ${HDRS}"
 
 techdoc.pdf: techdoc.tex
-	while pdflatex $< ${BUILD_OUTPUT} || exit 1 ; \
+	timestamp=$(shell date "+%Y%m%d%H%M%S+02'00'" -r $< );\
+	while pdflatex "\def\fixedpdfdate{$$timestamp}\input $<" ${BUILD_OUTPUT} || exit 1 ; \
 		grep -q "Label(s) may have changed" techdoc.log; \
 	do :; done
 
@@ -302,7 +303,7 @@ clean: _clean
 	rm -f $(NAME)*.tar.gz $(NAME)*.tgz
 	rm -f af_names.h
 	rm -f cap_names.h
-	rm -rf techdoc.aux techdoc.log techdoc.pdf techdoc.toc techdor.txt techdoc/
+	rm -rf techdoc.aux techdoc.out techdoc.log techdoc.pdf techdoc.toc techdoc.txt techdoc/
 	$(MAKE) -s -C $(AAREDIR) clean
 	$(MAKE) -s -C po clean
 	$(MAKE) -s -C tst clean

parser/techdoc.tex

@@ -5,6 +5,17 @@
 \usepackage{url}
 %\usepackage{times}
 
+\usepackage[pdftex,
+  pdfauthor={Andreas Gruenbacher and Seth Arnold},
+  pdftitle={AppArmor Technical Documentation},%
+\ifx\fixedpdfdate\@empty\else
+  pdfcreationdate={\fixedpdfdate},
+  pdfmoddate={\fixedpdfdate},
+\fi
+  pdfsubject={AppArmor},
+  pdfkeywords={AppArmor}
+]{hyperref}
+
 \hyphenation{App-Armor}
 \hyphenation{name-space}
 
@@ -14,7 +25,8 @@
 \author{Andreas Gruenbacher and Seth Arnold \\
 \url{{agruen,seth.arnold}@suse.de} \\
 SUSE Labs / Novell}
-%\date{}
+% don't include the (build!) date
+\date{}
 
 \begin{document}