Add property to disable compiler sanity checks during cross compilation.

cross/ubuntu-armhf.txt

@@ -18,6 +18,8 @@ cpp_args = '-DMESON_TEST_ISSUE_1665=1'
 has_function_printf = true
 has_function_hfkerhisadf = false
 
+skip_sanity_check = true
+
 [host_machine]
 system = 'linux'
 cpu_family = 'arm'

docs/markdown/snippets/skipsanity.md

@@ -0,0 +1,9 @@
+## Skip sanity tests when cross compiling
+
+For certain cross compilation environments it is not possible to
+compile a sanity check application. This can now be disabled by adding
+the following entry to your cross file's `properties` section:
+
+```
+skip_sanity_check = true
+```

mesonbuild/interpreter.py

@@ -3080,6 +3080,16 @@ external dependencies (including libraries) must go to "dependencies".''')
         self._redetect_machines()
         return success
 
+    def should_skip_sanity_check(self, for_machine: MachineChoice) -> bool:
+        if for_machine != MachineChoice.HOST:
+            return False
+        if not self.environment.is_cross_build():
+            return False
+        should = self.environment.properties.host.get('skip_sanity_check', False)
+        if not isinstance(should, bool):
+            raise InterpreterException('Option skip_sanity_check must be a boolean.')
+        return should
+
     def add_languages_for(self, args, required, for_machine: MachineChoice):
         success = True
         for lang in sorted(args, key=compilers.sort_clink):
@@ -3093,7 +3103,10 @@ external dependencies (including libraries) must go to "dependencies".''')
                     comp = self.environment.detect_compiler_for(lang, for_machine)
                     if comp is None:
                         raise InvalidArguments('Tried to use unknown language "%s".' % lang)
-                    comp.sanity_check(self.environment.get_scratch_dir(), self.environment)
+                    if self.should_skip_sanity_check(for_machine):
+                        mlog.log_once('Cross compiler sanity tests disabled via the cross file.')
+                    else:
+                        comp.sanity_check(self.environment.get_scratch_dir(), self.environment)
                 except Exception:
                     if not required:
                         mlog.log('Compiler for language',

mesonbuild/mlog.py

@@ -213,7 +213,7 @@ def log_once(*args: T.Union[str, AnsiDecorator], is_error: bool = False,
              **kwargs: T.Any) -> None:
     """Log variant that only prints a given message one time per meson invocation.
 
-    This considers nasi decorated values by the values they wrap without
+    This considers ansi decorated values by the values they wrap without
     regard for the AnsiDecorator itself.
     """
     t = tuple(a.text if isinstance(a, AnsiDecorator) else a for a in args)