[geary: 3/4] Fix meson targets for contractor contract

[Michael Gratton <mjog src gnome org>]

commit b8ae8865ea1599600d4573fa7d020ef8178fe8eb
Author: Greg V <greg@unrelenting.technology>
Date:   Wed Jan 9 12:50:13 2019 +0300

    Fix meson targets for contractor contract

 desktop/meson.build | 2 +-
 meson.build         | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/desktop/meson.build b/desktop/meson.build
index e051cdc9..29f9ce74 100644
--- a/desktop/meson.build
+++ b/desktop/meson.build
@@ -25,7 +25,7 @@ if install_contractor_file
   # Description field. See merge req !50.
   msgfmt = find_program('msgfmt')
 
-  custom_target(
+  custom_target('geary-attach-contract',
     input: 'geary-attach.contract.desktop.in',
     output: 'geary-attach.contract',
     command: [msgfmt, '--desktop', '--keyword=Description', '--template', '@INPUT@', '-d', po_dir, '-o', 
'@OUTPUT@'],
diff --git a/meson.build b/meson.build
index 95bf584b..85e50c5b 100644
--- a/meson.build
+++ b/meson.build
@@ -20,6 +20,7 @@ cc = meson.get_compiler('c')
 valac = meson.get_compiler('vala')
 config_h_dir = include_directories('.')
 geary_prefix = get_option('prefix')
+bindir = join_paths(geary_prefix, get_option('bindir'))
 datadir = join_paths(geary_prefix, get_option('datadir'))
 libdir = join_paths(geary_prefix, get_option('libdir'))
 locale_dir = join_paths(geary_prefix, get_option('localedir'))