[gtk-doc] meson: also move gtk-doc.make install rule

[Stefan Sauer <stefkost src gnome org>]

commit 8732e96da0568e959e0abf66c02e30fafe21a6d5
Author: Stefan Sauer <ensonic users sf net>
Date:   Mon May 21 12:01:35 2018 +0200

    meson: also move gtk-doc.make install rule

 buildsystems/autotools/meson.build |    5 +++++
 meson.build                        |    1 -
 2 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/buildsystems/autotools/meson.build b/buildsystems/autotools/meson.build
index fd6f044..c39d3fb 100644
--- a/buildsystems/autotools/meson.build
+++ b/buildsystems/autotools/meson.build
@@ -34,3 +34,8 @@ custom_target(
     '@OUTPUT@',
   ],
 )
+
+install_data(
+  ['gtk-doc.make'],
+  install_dir: pkgdatadir,
+)
diff --git a/meson.build b/meson.build
index 3f2412b..70e12fa 100644
--- a/meson.build
+++ b/meson.build
@@ -141,7 +141,6 @@ endforeach
 gtkdoc_data = [
   'devhelp2.xsd',
   'devhelp2.xsl',
-  'gtk-doc.make',
   'gtk-doc.xsl',
   'version-greater-or-equal.xsl',
 ]