From 5cd46c6ff5e5fb187fc01cc938a6a09aa9c4d24c Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Mon, 24 May 2021 09:16:25 -0400
Subject: Fix documentation build as a subproject

---
 doc/c/Doxyfile.in     | 10 +++++++---
 doc/c/meson.build     | 12 ++++++++----
 doc/c/xml/meson.build |  2 +-
 3 files changed, 16 insertions(+), 8 deletions(-)

(limited to 'doc/c')

diff --git a/doc/c/Doxyfile.in b/doc/c/Doxyfile.in
index 96bbf63..d119015 100644
--- a/doc/c/Doxyfile.in
+++ b/doc/c/Doxyfile.in
@@ -20,9 +20,13 @@ XML_PROGRAMLISTING     = NO
 SHOW_FILES             = NO
 
 MACRO_EXPANSION        = YES
-PREDEFINED             = PUGL_API PUGL_DISABLE_DEPRECATED PUGL_CONST_API= PUGL_CONST_FUNC=
+PREDEFINED             = PUGL_API \
+                         PUGL_DISABLE_DEPRECATED \
+                         PUGL_CONST_API= \
+                         PUGL_CONST_FUNC=
 
+RECURSIVE              = YES
 STRIP_FROM_PATH        = @PUGL_SRCDIR@
-INPUT                  = @PUGL_HEADERS@
+INPUT                  = @PUGL_SRCDIR@/include
 
-OUTPUT_DIRECTORY       = doc/c
+OUTPUT_DIRECTORY       = @DOX_OUTPUT@
diff --git a/doc/c/meson.build b/doc/c/meson.build
index df9363e..65302b3 100644
--- a/doc/c/meson.build
+++ b/doc/c/meson.build
@@ -26,8 +26,10 @@ subdir('xml')
 subdir('api')
 
 docs = custom_target(
-  'C API Documentation (singlehtml)',
-  command: [sphinx_build, '-M', 'singlehtml', 'doc/c/', 'doc/c/', '-E', '-q', '-t', 'singlehtml'],
+  'singlehtml C documentation for pugl',
+  command: [sphinx_build, '-M', 'singlehtml',
+            meson.current_build_dir(), meson.current_build_dir(),
+            '-E', '-q', '-t', 'singlehtml'],
   input: [c_rst_files, c_pugl_rst, c_index_xml],
   output: 'singlehtml',
   build_by_default: true,
@@ -35,8 +37,10 @@ docs = custom_target(
   install_dir: docdir / 'pugl-0')
 
 docs = custom_target(
-  'C API Documentation (html)',
-  command: [sphinx_build, '-M', 'html', 'doc/c/', 'doc/c/', '-E', '-q', '-t', 'html'],
+  'html C documentation for pugl',
+  command: [sphinx_build, '-M', 'html',
+            meson.current_build_dir(), meson.current_build_dir(),
+            '-E', '-q', '-t', 'html'],
   input: [c_rst_files, c_pugl_rst, c_index_xml],
   output: 'html',
   build_by_default: true,
diff --git a/doc/c/xml/meson.build b/doc/c/xml/meson.build
index d79d59a..ea5df9c 100644
--- a/doc/c/xml/meson.build
+++ b/doc/c/xml/meson.build
@@ -6,8 +6,8 @@ foreach h : c_headers
 endforeach
 
 config = configuration_data()
-config.set('PUGL_HEADERS', ' '.join(c_doxygen_input))
 config.set('PUGL_SRCDIR', pugl_src_root)
+config.set('DOX_OUTPUT', meson.current_build_dir() / '..')
 
 c_doxyfile = configure_file(configuration: config,
                             input: '../Doxyfile.in',
-- 
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