Merge pull request #769 from rsmyth-ecmi/MesonConfig

Add some more Meson config options

meson.build

@@ -26,6 +26,7 @@ project('unity', 'c',
 build_fixture = get_option('extension_fixture')
 build_memory = get_option('extension_memory')
 support_double = get_option('support_double')
+fixture_help_message = get_option('fixture_help_message')
 
 unity_args = []
 unity_src = []
@@ -34,14 +35,16 @@ unity_inc = []
 subdir('src')
 
 if build_fixture
-  # Building the fixture extension implies building the memory
-  # extension.
-  build_memory = true
   subdir('extras/fixture/src')
+  if fixture_help_message != ''
+    unity_args += '-DUNITY_CUSTOM_HELP_MSG=' + fixture_help_message
+  endif
 endif
 
-if build_memory
+if build_memory.enabled() or (build_memory.auto() and build_fixture)
   subdir('extras/memory/src')
+else
+  unity_args += '-DUNITY_FIXTURE_NO_EXTRAS'
 endif
 
 if support_double