From 07f37a7fd4b84f996264b7498c55ac333efd4db9 Mon Sep 17 00:00:00 2001
From: Jonathan Wakely <jwakely@redhat.com>
Date: Tue, 8 Oct 2019 12:01:44 +0100
Subject: [PATCH] Add makefile target to update HTML files in source tree

Also remove the creation of the html/ext sub-directory, which has been
unused since revision r245258.

	* doc/Makefile.am (doc-html-docbook-regenerate): New target.
	(${docbook_outdir}/html): Do not create unused 'html/ext' directory.
	* doc/Makefile.in: Regenerate.
	* doc/xml/manual/documentation_hacking.xml: Document new target.
	* doc/html/*: Regenerate.

From-SVN: r276695
---
 libstdc++-v3/ChangeLog                                  | 6 ++++++
 libstdc++-v3/doc/Makefile.am                            | 7 ++++++-
 libstdc++-v3/doc/Makefile.in                            | 7 ++++++-
 libstdc++-v3/doc/html/manual/documentation_hacking.html | 7 ++++++-
 libstdc++-v3/doc/xml/manual/documentation_hacking.xml   | 9 ++++++++-
 5 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 31610a47961..7f08a552376 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,11 @@
 2019-10-08  Jonathan Wakely  <jwakely@redhat.com>
 
+	* doc/Makefile.am (doc-html-docbook-regenerate): New target.
+	(${docbook_outdir}/html): Do not create unused 'html/ext' directory.
+	* doc/Makefile.in: Regenerate.
+	* doc/xml/manual/documentation_hacking.xml: Document new target.
+	* doc/html/*: Regenerate.
+
 	* doc/xml/manual/allocator.xml: Use archived copy of CUJ article.
 	* doc/html/*: Regenerate.
 
diff --git a/libstdc++-v3/doc/Makefile.am b/libstdc++-v3/doc/Makefile.am
index b9aca381b74..9b385edecff 100644
--- a/libstdc++-v3/doc/Makefile.am
+++ b/libstdc++-v3/doc/Makefile.am
@@ -476,7 +476,6 @@ ${docbook_outdir}/fo:
 
 ${docbook_outdir}/html:
 	mkdir -p ${docbook_outdir}/html
-	mkdir -p ${docbook_outdir}/html/ext
 	mkdir -p ${docbook_outdir}/html/images
 	mkdir -p ${docbook_outdir}/html/manual
 
@@ -545,6 +544,12 @@ stamp-html-docbook: $(xml_sources) ${docbook_outdir}/html
 
 doc-html-docbook: stamp-html-docbook-data
 
+# Generate the HTML pages and copy them back to the source tree.
+doc-html-docbook-regenerate: doc-html-docbook
+	$(INSTALL_DATA) ${docbook_outdir}/html/*.html ${top_srcdir}/doc/html
+	$(INSTALL_DATA) ${docbook_outdir}/html/images/* ${top_srcdir}/doc/html/images
+	$(INSTALL_DATA) ${docbook_outdir}/html/manual/*.html ${top_srcdir}/doc/html/manual
+
 # HTML, all one page
 # NB: Have to generate customization XSL for UTF-8 output.
 manual_html = ${docbook_outdir}/html/libstdc++-manual-single.html
diff --git a/libstdc++-v3/doc/Makefile.in b/libstdc++-v3/doc/Makefile.in
index 5fee1b2d310..6114bff62f6 100644
--- a/libstdc++-v3/doc/Makefile.in
+++ b/libstdc++-v3/doc/Makefile.in
@@ -977,7 +977,6 @@ ${docbook_outdir}/fo:
 
 ${docbook_outdir}/html:
 	mkdir -p ${docbook_outdir}/html
-	mkdir -p ${docbook_outdir}/html/ext
 	mkdir -p ${docbook_outdir}/html/images
 	mkdir -p ${docbook_outdir}/html/manual
 
@@ -1029,6 +1028,12 @@ stamp-html-docbook: $(xml_sources) ${docbook_outdir}/html
 	$(STAMP) stamp-html-docbook
 
 doc-html-docbook: stamp-html-docbook-data
+
+# Generate the HTML pages and copy them back to the source tree.
+doc-html-docbook-regenerate: doc-html-docbook
+	$(INSTALL_DATA) ${docbook_outdir}/html/*.html ${top_srcdir}/doc/html
+	$(INSTALL_DATA) ${docbook_outdir}/html/images/* ${top_srcdir}/doc/html/images
+	$(INSTALL_DATA) ${docbook_outdir}/html/manual/*.html ${top_srcdir}/doc/html/manual
 stamp-html-single-docbook: $(xml_sources) ${docbook_outdir}/html
 	@echo "Generating html single file..."
 	$(XSLTPROC) $(XSLT_PARAM) $(XSLT_FLAGS) -o ${manual_html} \
diff --git a/libstdc++-v3/doc/html/manual/documentation_hacking.html b/libstdc++-v3/doc/html/manual/documentation_hacking.html
index 6b4592c24a2..0de98a5ff94 100644
--- a/libstdc++-v3/doc/html/manual/documentation_hacking.html
+++ b/libstdc++-v3/doc/html/manual/documentation_hacking.html
@@ -381,10 +381,15 @@
       </p><p>
       </p><pre class="screen"><strong class="userinput"><code>make doc-xml-single-docbook</code></strong></pre><p>
       </p><p>
-	Generated files are output into separate sub directores of
+	Generated files are output into separate sub-directores of
 	<code class="filename">doc/docbook/</code> in the
 	build directory, based on the output format. For instance, the
 	HTML docs will be in <code class="filename">doc/docbook/html</code>.
+      </p><p>
+	The </p><pre class="screen">doc-html-docbook-regenerate</pre><p> target will generate
+	the HTML files and copy them back to the libstdc++ source tree.
+	This can be used to update the HTML files that are checked in to
+	version control.
       </p><p>
 	If the Docbook stylesheets are installed in a custom location,
 	one can use the variable <code class="literal">XSL_STYLE_DIR</code> to
diff --git a/libstdc++-v3/doc/xml/manual/documentation_hacking.xml b/libstdc++-v3/doc/xml/manual/documentation_hacking.xml
index e0990a28516..7db776794c2 100644
--- a/libstdc++-v3/doc/xml/manual/documentation_hacking.xml
+++ b/libstdc++-v3/doc/xml/manual/documentation_hacking.xml
@@ -807,13 +807,20 @@
       </para>
 
       <para>
-	Generated files are output into separate sub directores of
+	Generated files are output into separate sub-directores of
 	<filename class="directory">doc/docbook/</filename> in the
 	build directory, based on the output format. For instance, the
 	HTML docs will be in <filename
 	class="directory">doc/docbook/html</filename>.
       </para>
 
+      <para>
+	The <screen>doc-html-docbook-regenerate</screen> target will generate
+	the HTML files and copy them back to the libstdc++ source tree.
+	This can be used to update the HTML files that are checked in to
+	version control.
+      </para>
+
       <para>
 	If the Docbook stylesheets are installed in a custom location,
 	one can use the variable <literal>XSL_STYLE_DIR</literal> to
-- 
2.30.2