Cleanup meson build

Signed-off-by: Adrien Gallouët <adrien@gallouet.fr>

README.md

@@ -13,7 +13,7 @@ Grab the latest release from github:
 
 To build and install the latest version with [meson](http://mesonbuild.com):
 
-    $ meson --buildtype=release build
+    $ meson build
     $ cd build
     $ ninja
     # ninja install

meson.build

@@ -1,10 +1,22 @@
 project('glorytun', 'c',
-    version: run_command('./version.sh').stdout()
+    version: run_command('./version.sh').stdout(),
+    license: 'BSD-3-Clause',
+    default_options : [ 'buildtype=debugoptimized' ]
 )
 
 add_global_arguments('-DPACKAGE_VERSION="'+meson.project_version()+'"', language : 'c')
 
-executable('glorytun', install: true,
-    sources: [ 'src/main.c', 'src/common.c', 'src/option.c', 'src/tun.c', 'src/iface.c', 'mud/mud.c' ],
-    dependencies: [ dependency('libsodium', version : '>=1.0.4') ]
-)
+src = [
+  'src/common.c',
+  'src/iface.c',
+  'src/option.c',
+  'src/tun.c',
+  'mud/mud.c',
+  'src/main.c'
+]
+
+deps = [
+  dependency('libsodium', version : '>=1.0.4')
+]
+
+executable('glorytun', install: true, sources: src, dependencies: deps)