From a93cba6feee4d62cae4499d566888b7b900059ac Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@tuebingen.mpg.de>
Date: Tue, 21 Apr 2020 10:23:03 +0200
Subject: [PATCH 1/1] Introduction: Fix duplication anchor.

Since the chapter list is contained twice on the intro page, we
must use different names for the anchors. To do so, change the
TABLE_OF_CONTENTS() macro to receive the name of the anchor as an
argument.

Found by checklink.

Fixes: 47d1b278687988739b214025788f7c5739916e70
---
 Introduction.m4    | 2 +-
 include/m4/aple.m4 | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Introduction.m4 b/Introduction.m4
index 66be111..3f0f5b3 100644
--- a/Introduction.m4
+++ b/Introduction.m4
@@ -12,7 +12,7 @@ OVERVIEW(«
 »)
 
 SECTION(«Table of Contents»)
-TABLE_OF_CONTENTS()
+TABLE_OF_CONTENTS(«chapter_list_introduction»)
 
 SECTION(«About»)
 
diff --git a/include/m4/aple.m4 b/include/m4/aple.m4
index a995dfc..c209513 100644
--- a/include/m4/aple.m4
+++ b/include/m4/aple.m4
@@ -76,7 +76,7 @@ define(«HEADER», «
 »)
 
 define(«TABLE_OF_CONTENTS», «
-	<ul id="chapter_list">
+	<ul id="$1">
 		<li> TOC_ENTRY(«Introduction», «$2») </li>
 		<li> TOC_ENTRY(«Unix_Concepts», «$2») </li>
 		ifelse(PUBLIC(), «false», «
@@ -110,7 +110,7 @@ HEADER(«$1», «$2», «$3»)
 </svg>
 	<div class="dropdown-content">
 		<h3> Chapter </h3>
-		TABLE_OF_CONTENTS()
+		TABLE_OF_CONTENTS(«chapter_list»)
 		<h4> Section </h4>
 		<ul>
 divert(«1»)
-- 
2.39.2