[gimp] meson: same option for meson -Dcheck-update=false as previous commit.

[Jehan <jehanp src gnome org>]

commit 89d6ee2f34a03a8cd0ca9c9f9d5872bf8197f318
Author: Jehan <jehan girinstud io>
Date:   Thu Feb 6 21:20:17 2020 +0100

    meson: same option for meson -Dcheck-update=false as previous commit.
    
    Separate commit for easy cherry-picking.

 meson.build       | 11 +++++++----
 meson_options.txt |  2 ++
 2 files changed, 9 insertions(+), 4 deletions(-)
---
diff --git a/meson.build b/meson.build
index 61ac501ac0..def4580ac7 100644
--- a/meson.build
+++ b/meson.build
@@ -1113,6 +1113,8 @@ else
   conf.set_quoted('GIMP_BUILD_PLATFORM_FAMILY', 'other')
 endif
 
+conf.set('CHECK_UPDATE', get_option('check-update'))
+
 # Default ICC directory #
 
 # This is necessary because some Unix systems may have a different
@@ -1781,10 +1783,11 @@ final_message = [
 '''  gimp-console:        @0@'''.format(enable_console_bin),
 '',
 '''Optional Features:''',
-'''  Language selection:  @0@'''.format(isocodes.found()),
-'''  Vector icons:        @0@'''.format(have_vector_icons),
-'''  Dr. Mingw (Win32):   @0@'''.format(drmingw.found()),
-'''  Relocatable Bundle:  @0@'''.format(relocatable_bundle),
+'''  Check updates at startup:  @0@'''.format(get_option('check-update')),
+'''  Language selection:        @0@'''.format(isocodes.found()),
+'''  Vector icons:              @0@'''.format(have_vector_icons),
+'''  Dr. Mingw (Win32):         @0@'''.format(drmingw.found()),
+'''  Relocatable Bundle:        @0@'''.format(relocatable_bundle),
 '''  Default ICC directory:     @0@'''.format(icc_directory),
 '''  32-bit DLL folder (Win32): @0@'''.format(get_option('win32-32bits-dll-folder')),
 '''  Detailed backtraces:       @0@'''.format(detailed_backtraces),
diff --git a/meson_options.txt b/meson_options.txt
index 63aaeaf056..fc57ac5f56 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -14,6 +14,8 @@ option('shmem-type',        type: 'combo',   value: 'auto', description: 'Shared
 
 option('build-id',          type: 'string',  value: 'unknown', description: 'Unique string used to define 
your build')
 option('revision',          type: 'integer', value: 0,    description: 'Revision increment for a same 
build/version/platform')
+option('check-update',      type: 'boolean', value: true, description: 'GIMP will look up new version 
availability on startup')
+
 option('bug-report-url',    type: 'string',  value: '',   description: 'URL used by the debug dialog to 
report bugs')
 option('gimpdir',           type: 'string',  value: '',   description: 'Change default gimpdir from 
~/.config/GIMP/2.9 to ~/.config/DIR/2.9 (if relative), or to DIR (if absolute)')
 option('icc-directory',     type: 'string',  value: '',   description: 'Path to default color profiles for 
this system')