[gdk-pixbuf] meson: Add option for installing tests

[Emmanuele Bassi <ebassi src gnome org>]

commit 4c76635e1f19c6d1919d4ea94f6b00f97b996665
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sun Apr 29 18:18:07 2018 +0100

    meson: Add option for installing tests
    
    Like the Autotools build allows us to decide whether the tests should be
    installed in a known location, we should have this option for the Meson
    build.

 meson_options.txt |    4 ++++
 tests/meson.build |   10 ++++++----
 2 files changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/meson_options.txt b/meson_options.txt
index a5aa93b..9f6b650 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -42,3 +42,7 @@ option('native_windows_loaders',
        description: 'Use Windows system components to handle BMP, EMF, GIF, ICO, JPEG, TIFF and WMF images, 
overriding jpeg and tiff.  To build this into gdk-pixbuf, pass in windows" with the other loaders to build in 
or use "all" with the builtin_loaders option',
        type: 'boolean',
        value: false)
+option('installed_tests',
+       description: 'Install the test suite',
+       type: 'boolean',
+       value: true)
diff --git a/tests/meson.build b/tests/meson.build
index c993360..e134c32 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -89,8 +89,10 @@ test_data = [
 installed_test_bindir = join_paths(gdk_pixbuf_libexecdir, 'installed-tests', meson.project_name())
 installed_test_datadir = join_paths(gdk_pixbuf_datadir, 'installed-tests', meson.project_name())
 
-install_data(test_data, install_dir: installed_test_bindir)
-install_subdir('test-images', install_dir: installed_test_bindir)
+if get_option('installed_tests')
+  install_data(test_data, install_dir: installed_test_bindir)
+  install_subdir('test-images', install_dir: installed_test_bindir)
+endif
 
 test_deps = gdk_pixbuf_deps + [ gdkpixbuf_dep ]
 
@@ -110,7 +112,7 @@ foreach t: installed_tests
       '--testbin=@0@'.format(test_name),
       '@OUTPUT@',
     ],
-    install: true,
+    install: get_option('installed_tests'),
     install_dir: installed_test_datadir,
   )
 
@@ -121,7 +123,7 @@ foreach t: installed_tests
       gdk_pixbuf_inc,
     ],
     c_args: common_cflags,
-    install: true,
+    install: get_option('installed_tests'),
     install_dir: installed_test_bindir,
   )