File 0691-Fix-make-local_html-to-work-better.patch of Package erlang

From d796863e069ab8f322802d08a0ada8e8eca2cc88 Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Wed, 1 Sep 2021 17:52:09 +0200
Subject: [PATCH 01/12] Fix `make local_html` to work better

* Build mod2app.xml for specs lookup
* link otp_doc.css for easier editing
---
 Makefile.in                 | 2 +-
 make/otp_release_targets.mk | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/Makefile.in b/Makefile.in
index ab2fc77b06..bf867f66ce 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -451,7 +451,7 @@ endif
 	$(DOCGEN)/priv/bin/validate_links.escript $(ERL_TOP) make/$(TARGET)/mod2app.xml \
 		lib/*/doc/xml/*.xml erts/doc/xml/*.xml system/doc/xml/*/*.xml
 
-mod2app: $(ERL_TOP)/make/$(TARGET)/mod2app.xml
+mod2app: doc_bootstrap_build doc_bootstrap_copy $(ERL_TOP)/make/$(TARGET)/mod2app.xml
 
 $(ERL_TOP)/make/$(TARGET)/mod2app.xml: erts/doc/src/Makefile lib/*/doc/src/Makefile 
 	PATH=$(BOOT_PREFIX)"$${PATH}" escript $(BOOTSTRAP_ROOT)/bootstrap/lib/erl_docgen/priv/bin/xref_mod_app.escript -topdir $(ERL_TOP) -outfile $(ERL_TOP)/make/$(TARGET)/mod2app.xml
diff --git a/make/otp_release_targets.mk b/make/otp_release_targets.mk
index a2ba51c9cf..c594f5c07f 100644
--- a/make/otp_release_targets.mk
+++ b/make/otp_release_targets.mk
@@ -187,8 +187,11 @@ local_docs: local_copy_of_topdefs docs
 local_html: TOPDOCDIR=.
 local_html: local_copy_of_topdefs html
 
-local_copy_of_topdefs:
-	$(INSTALL) $(DOCGEN)/priv/css/otp_doc.css $(HTMLDIR)
+$(HTMLDIR)/otp_doc.css:
+	ln -s $(DOCGEN)/priv/css/otp_doc.css $(HTMLDIR)/otp_doc.css
+
+local_copy_of_topdefs: $(HTMLDIR)/otp_doc.css
+	cd $(ERL_TOP) && make mod2app
 	$(INSTALL) $(DOCGEN)/priv/images/erlang-logo.png $(HTMLDIR)
 	$(INSTALL) $(DOCGEN)/priv/images/erlang-logo.gif $(HTMLDIR)
 	$(INSTALL_DIR) $(HTMLDIR)/js/flipmenu
-- 
2.31.1