From fda2fbd33084a388effc844ab73fd4f2c297efb1 Mon Sep 17 00:00:00 2001
From: Philip Withnall <withnall@endlessm.com>
Date: Thu, 5 Mar 2020 15:44:46 +0000
Subject: [PATCH] build: Add -Dui option to Meson
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This allows the UI components (libmalcontent-ui and malcontent-control)
to be disabled in the build so that a dependency cycle with flatpak can
be avoided (by building malcontent twice, once with `-Dui=disabled` and
then again with `-Dui=enabled`).

The dependency graph is:
  malcontent-control → libmalcontent-ui → flatpak → libmalcontent
which becomes cyclic if libmalcontent-ui and libmalcontent can only be
built at the same time.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

Fixes: #16
---
 meson.build       | 8 ++++++--
 meson_options.txt | 6 ++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/meson.build b/meson.build
index 8ef161a..bb9091b 100644
--- a/meson.build
+++ b/meson.build
@@ -127,9 +127,13 @@ test_env = [
 
 subdir('accounts-service')
 subdir('libmalcontent')
-subdir('libmalcontent-ui')
+if get_option('ui').enabled()
+  subdir('libmalcontent-ui')
+endif
 subdir('malcontent-client')
-subdir('malcontent-control')
+if get_option('ui').enabled()
+  subdir('malcontent-control')
+endif
 subdir('pam')
 subdir('po')
 
diff --git a/meson_options.txt b/meson_options.txt
index 06329d4..9d32658 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -9,3 +9,9 @@ option(
   type: 'string',
   description: 'directory for PAM modules'
 )
+option(
+  'ui',
+  type: 'feature',
+  value: 'enabled',
+  description: 'enable UI library'
+)