https://bugs.gentoo.org/473650
https://fedorahosted.org/linux-pam/ticket/31

fix doc installs when doing out of tree builds

--- a/doc/adg/Makefile.in
+++ b/doc/adg/Makefile.in
@@ -463,17 +463,17 @@ install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(docdir)
 	$(mkinstalldirs) $(DESTDIR)$(pdfdir)
 	$(mkinstalldirs) $(DESTDIR)$(htmldir)
-	test -f html/Linux-PAM_ADG.html || exit 0; \
+	test -f html/Linux-PAM_ADG.html -o -f $(srcdir)/html/Linux-PAM_ADG.html || exit 0; \
 	    $(install_sh_DATA) html/Linux-PAM_ADG.html html/adg-*.html \
 		$(DESTDIR)$(htmldir)/ || \
 	    $(install_sh_DATA) $(srcdir)/html/Linux-PAM_ADG.html \
-		$(srcdir)/html/sag-*.html \
+		$(srcdir)/html/adg-*.html \
 		$(DESTDIR)$(htmldir)/
-	test -f Linux-PAM_ADG.txt || exit 0; \
+	test -f Linux-PAM_ADG.txt -o -f $(srcdir)/Linux-PAM_ADG.txt || exit 0; \
 	    $(install_sh_DATA) Linux-PAM_ADG.txt $(DESTDIR)$(docdir)/ || \
 	    $(install_sh_DATA) $(srcdir)/Linux-PAM_ADG.txt \
 		$(DESTDIR)$(docdir)/
-	test -f Linux-PAM_ADG.pdf || exit 0; \
+	test -f Linux-PAM_ADG.pdf -o -f $(srcdir)/Linux-PAM_ADG.pdf || exit 0; \
 	    $(install_sh_DATA) Linux-PAM_ADG.pdf $(DESTDIR)$(pdfdir)/ || \
 	    $(install_sh_DATA) $(srcdir)/Linux-PAM_ADG.pdf \
 		$(DESTDIR)$(pdfdir)/
@@ -486,18 +486,18 @@ uninstall-local:
 
 releasedocs: all
 	$(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html
-	test -f html/Linux-PAM_ADG.html || exit 0; \
+	test -f html/Linux-PAM_ADG.html -o -f $(srcdir)/html/Linux-PAM_ADG.html || exit 0; \
 	    cp -ap html/Linux-PAM_ADG.html html/adg-*.html \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html/ || \
 	    cp -ap $(srcdir)/html/Linux-PAM_ADG.html \
 		$(srcdir)/html/adg-*.html \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/html/
-	test -f Linux-PAM_ADG.txt || exit 0; \
+	test -f Linux-PAM_ADG.txt -o -f $(srcdir)/Linux-PAM_ADG.txt || exit 0; \
 	    cp -p Linux-PAM_ADG.txt \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/ || \
 	    cp -p $(srcdir)/Linux-PAM_ADG.txt \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/
-	test -f Linux-PAM_ADG.pdf || exit 0; \
+	test -f Linux-PAM_ADG.pdf -o -f $(srcdir)/Linux-PAM_ADG.pdf || exit 0; \
 	    cp -p Linux-PAM_ADG.pdf \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/adg/ || \
 	    cp -p $(srcdir)/Linux-PAM_ADG.pdf \
--- a/doc/mwg/Makefile.in
+++ b/doc/mwg/Makefile.in
@@ -463,17 +463,17 @@ install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(docdir)
 	$(mkinstalldirs) $(DESTDIR)$(pdfdir)
 	$(mkinstalldirs) $(DESTDIR)$(htmldir)
-	test -f html/Linux-PAM_MWG.html || exit 0; \
+	test -f html/Linux-PAM_MWG.html -o -f $(srcdir)/html/Linux-PAM_MWG.html || exit 0; \
 	    $(install_sh_DATA) html/Linux-PAM_MWG.html html/mwg-*.html \
 		$(DESTDIR)$(htmldir)/ || \
 	    $(install_sh_DATA) $(srcdir)/html/Linux-PAM_MWG.html \
-		$(srcdir)/html/sag-*.html \
+		$(srcdir)/html/mwg-*.html \
 		$(DESTDIR)$(htmldir)/
-	test -f Linux-PAM_MWG.txt || exit 0; \
+	test -f Linux-PAM_MWG.txt -o -f $(srcdir)/Linux-PAM_MWG.txt || exit 0; \
 	    $(install_sh_DATA) Linux-PAM_MWG.txt $(DESTDIR)$(docdir)/ || \
 	    $(install_sh_DATA) $(srcdir)/Linux-PAM_MWG.txt \
 		$(DESTDIR)$(docdir)/
-	test -f Linux-PAM_MWG.pdf || exit 0; \
+	test -f Linux-PAM_MWG.pdf -o -f $(srcdir)/Linux-PAM_MWG.pdf || exit 0; \
 	    $(install_sh_DATA) Linux-PAM_MWG.pdf $(DESTDIR)$(pdfdir)/ || \
 	    $(install_sh_DATA) $(srcdir)/Linux-PAM_MWG.pdf \
 		$(DESTDIR)$(pdfdir)/
@@ -486,18 +486,18 @@ uninstall-local:
 
 releasedocs: all
 	$(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/html
-	test -f html/Linux-PAM_MWG.html || exit 0; \
+	test -f html/Linux-PAM_MWG.html -o -f $(srcdir)/html/Linux-PAM_MWG.html || exit 0; \
 	    cp -ap html/Linux-PAM_MWG.html html/mwg-*.html \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/html/ || \
 	    cp -ap $(srcdir)/html/Linux-PAM_MWG.html \
 		$(srcdir)/html/mwg-*.html \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/html/
-	test -f Linux-PAM_MWG.txt || exit 0; \
+	test -f Linux-PAM_MWG.txt -o -f $(srcdir)/Linux-PAM_MWG.txt || exit 0; \
 	    cp -p Linux-PAM_MWG.txt \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/ || \
 	    cp -p $(srcdir)/Linux-PAM_MWG.txt \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/
-	test -f Linux-PAM_MWG.pdf || exit 0; \
+	test -f Linux-PAM_MWG.pdf -o -f $(srcdir)/Linux-PAM_MWG.pdf || exit 0; \
 	    cp -p Linux-PAM_MWG.pdf \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/mwg/ || \
 	    cp -p $(srcdir)/Linux-PAM_MWG.pdf \
--- a/doc/sag/Makefile.in
+++ b/doc/sag/Makefile.in
@@ -463,17 +463,17 @@ install-data-local:
 	$(mkinstalldirs) $(DESTDIR)$(docdir)
 	$(mkinstalldirs) $(DESTDIR)$(pdfdir)
 	$(mkinstalldirs) $(DESTDIR)$(htmldir)
-	test -f html/Linux-PAM_SAG.html || exit 0; \
+	test -f html/Linux-PAM_SAG.html -o -f $(srcdir)/html/Linux-PAM_SAG.html || exit 0; \
 	    $(install_sh_DATA) html/Linux-PAM_SAG.html html/sag-*.html \
 		$(DESTDIR)$(htmldir)/ || \
 	    $(install_sh_DATA) $(srcdir)/html/Linux-PAM_SAG.html \
 		$(srcdir)/html/sag-*.html \
 		$(DESTDIR)$(htmldir)/
-	test -f Linux-PAM_SAG.txt || exit 0; \
+	test -f Linux-PAM_SAG.txt -o -f $(srcdir)/Linux-PAM_SAG.txt || exit 0; \
 	    $(install_sh_DATA) Linux-PAM_SAG.txt $(DESTDIR)$(docdir)/ || \
 	    $(install_sh_DATA) $(srcdir)/Linux-PAM_SAG.txt \
 		$(DESTDIR)$(docdir)/
-	test -f Linux-PAM_SAG.pdf || exit 0; \
+	test -f Linux-PAM_SAG.pdf -o -f $(srcdir)/Linux-PAM_SAG.pdf || exit 0; \
 	    $(install_sh_DATA) Linux-PAM_SAG.pdf $(DESTDIR)$(pdfdir)/ || \
 	    $(install_sh_DATA) $(srcdir)/Linux-PAM_SAG.pdf \
 		$(DESTDIR)$(pdfdir)/
@@ -486,18 +486,18 @@ uninstall-local:
 
 releasedocs: all
 	$(mkinstalldirs) $(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html
-	test -f html/Linux-PAM_SAG.html || exit 0; \
+	test -f html/Linux-PAM_SAG.html -o -f $(srcdir)/html/Linux-PAM_SAG.html || exit 0; \
 	    cp -ap html/Linux-PAM_SAG.html html/sag-*.html \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html/ || \
 	    cp -ap $(srcdir)/html/Linux-PAM_SAG.html \
 		$(srcdir)/html/sag-*.html \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/html/
-	test -f Linux-PAM_SAG.txt || exit 0; \
+	test -f Linux-PAM_SAG.txt -o -f $(srcdir)/Linux-PAM_SAG.txt || exit 0; \
 	    cp -p Linux-PAM_SAG.txt \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/ || \
 	    cp -p $(srcdir)/Linux-PAM_SAG.txt \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/
-	test -f Linux-PAM_SAG.pdf || exit 0; \
+	test -f Linux-PAM_SAG.pdf -o -f $(srcdir)/Linux-PAM_SAG.pdf || exit 0; \
 	    cp -p Linux-PAM_SAG.pdf \
 		$(top_builddir)/Linux-PAM-$(VERSION)/doc/sag/ || \
 	    cp -p $(srcdir)/Linux-PAM_SAG.pdf \