[gnome-disk-utility] build: Avoid extra variable on compiler flag checking

[Kai Lüke <kailueke src gnome org>]

commit c3f0ea8737d9793683dd9a885f9fcdf225752b73
Author: Iñigo Martínez <inigomartinez gmail com>
Date:   Thu Jul 4 07:37:49 2019 +0200

    build: Avoid extra variable on compiler flag checking
    
    The use of an extra variable can be avoided and still maintain
    readibility when checking compiler flags, so the build commands
    have been changed.

 meson.build | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/meson.build b/meson.build
index 53f1bb57..8baeab5f 100644
--- a/meson.build
+++ b/meson.build
@@ -34,7 +34,7 @@ config_h.set_quoted('GETTEXT_PACKAGE', gdu_name)
 compiler_flags = []
 
 if get_option('buildtype').contains('debug')
-  test_cflags = [
+  compiler_flags += cc.get_supported_arguments([
     '-fno-strict-aliasing',
     '-Wcast-align',
     '-Wdeclaration-after-statement',
@@ -63,9 +63,7 @@ if get_option('buildtype').contains('debug')
     '-Wundef',
     '-Wunused-but-set-variable',
     '-Wwrite-strings',
-  ]
-
-  compiler_flags += cc.get_supported_arguments(test_cflags)
+  ])
 endif
 
 add_project_arguments(compiler_flags, language: 'c')