From: Pieter Lexis <pieter@plexis.eu>
Date: Tue, 20 Jan 2015 07:10:35 +0000 (+0100)
Subject: Add optional linkchecker for documentation
X-Git-Tag: rec-3.7.0-rc2~49^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b43f4f8a41f0fd0f093e7746c4e83f7bd9b866a0;p=thirdparty%2Fpdns.git

Add optional linkchecker for documentation

   * This allows all internal links (including anchors) in the
   documentation to be verified.
---

diff --git a/configure.ac b/configure.ac
index 6604febd71..b1972524dc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -102,6 +102,7 @@ PDNS_WITH_SQLITE3
 
 PDNS_CHECK_PANDOC
 PDNS_CHECK_MKDOCS
+PDNS_CHECK_LINKCHECKER
 
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_TYPE_SIZE_T
diff --git a/docs/Makefile.am b/docs/Makefile.am
index 5a1a4e1b3d..2af0ddc76e 100644
--- a/docs/Makefile.am
+++ b/docs/Makefile.am
@@ -43,6 +43,17 @@ $(MANPAGES_TARGET):
 	exit 1
 endif
 
+if HAVE_LINKCHECKER
+check-links: html
+	linkchecker --anchors \
+	  --ignore-url=.eot$ \
+	  --ignore-url=\.svg \
+	  --ignore-url=mailto \
+	  --ignore-url=.ttf$ \
+	  --ignore-url=woff$ \
+	  html/index.html
+endif
+
 clean:
 	rm -rf html *.8 *.1
 
diff --git a/m4/pdns_check_linkchecker.m4 b/m4/pdns_check_linkchecker.m4
new file mode 100644
index 0000000000..38d70c871f
--- /dev/null
+++ b/m4/pdns_check_linkchecker.m4
@@ -0,0 +1,9 @@
+AC_DEFUN([PDNS_CHECK_LINKCHECKER], [
+  AC_CHECK_PROG([LINKCHECKER], [linkchecker], [linkchecker], [no])
+
+  AS_IF([test "x$LINKCHECKER" = "xno"], [
+      AC_MSG_WARN([linkchecker is missing, unable to verify links in the documentation.])
+    ])
+  AM_CONDITIONAL([HAVE_LINKCHECKER], [test "x$LINKCHECKER" != "xno"])
+])
+