Do not build examples and contrib by default

Use "meson setup builddir -Denable-extras=true" to also build:
- examples/scardcontrol
- contrib/Kobil_mIDentity_switch
- contrib/RSA_SecurID

Thanks to Martin Paljak for the idea
" Do not build contrib and examples by default but require #4 "
#4

meson.build

@@ -152,27 +152,29 @@ executable('parse',
   dependencies : [libusb_dep, pcsc_cflags, zlib_dep, threads_dep],
   )
 
-# scardcontrol
-scardcontrol_src = [
-  'examples/scardcontrol.c',
-  'examples/PCSCv2part10.c',
-  ]
-executable('scardcontrol',
-  scardcontrol_src,
-  dependencies : [pcsc_dep],
-  )
-
-# contrib Kobil_mIDentity_switch
-executable('Kobil_mIDentity_switch',
-  'contrib/Kobil_mIDentity_switch/Kobil_mIDentity_switch.c',
-  dependencies : [libusb_dep],
-  )
-
-# contrib RSA_SecurID_getpasswd
-executable('RSA_SecurID_getpasswd',
-  'contrib/RSA_SecurID/RSA_SecurID_getpasswd.c',
-  dependencies : [pcsc_dep],
-  )
+if get_option('enable-extras')
+  # examples scardcontrol
+  scardcontrol_src = [
+    'examples/scardcontrol.c',
+    'examples/PCSCv2part10.c',
+    ]
+  executable('scardcontrol',
+    scardcontrol_src,
+    dependencies : [pcsc_dep],
+    )
+
+  # contrib Kobil_mIDentity_switch
+  executable('Kobil_mIDentity_switch',
+    'contrib/Kobil_mIDentity_switch/Kobil_mIDentity_switch.c',
+    dependencies : [libusb_dep],
+    )
+
+  # contrib RSA_SecurID_getpasswd
+  executable('RSA_SecurID_getpasswd',
+    'contrib/RSA_SecurID/RSA_SecurID_getpasswd.c',
+    dependencies : [pcsc_dep],
+    )
+endif
 
 # Info.plist
 command = [

meson.options

@@ -35,3 +35,8 @@ option('zlp',
   type : 'boolean',
   value : false,
   description : 'enable the Zero Length Packet patch for some Gemalto readers')
+
+option('enable-extras',
+  type : 'boolean',
+  value : false,
+  description : 'also compile examples and contrib')