From a771b3d4fe5b900fb3909a3fec6dc400c9f30a22 Mon Sep 17 00:00:00 2001
From: Stu Tomlinson <stu@nosnilmot.com>
Date: Fri, 18 Mar 2022 13:47:54 +0000
Subject: [PATCH] Support building docs when builddir != srcdir

---
 Doxyfile    | 2 +-
 Makefile.am | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Doxyfile b/Doxyfile
index 964e9a4..82d7d87 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -874,7 +874,7 @@ WARN_LOGFILE           =
 # spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = ./
+INPUT                  = $(SRCDIR)
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
diff --git a/Makefile.am b/Makefile.am
index cc312eb..c8abc63 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -325,7 +325,7 @@ test-release-all: dist-archives
 		echo "Success" && popd
 
 docs:
-	@doxygen -q
+	@SRCDIR=$(top_srcdir) doxygen -q $(top_srcdir)/Doxyfile
 
 @VALGRIND_CHECK_RULES@