env2mfile: Use Debian cross-prefixed GObject-Introspection tools

In Debian testing/unstable, there are wrappers available for various
GObject-Introspection tools during cross-builds, using qemu internally.

Signed-off-by: Simon McVittie <smcv@debian.org>

mesonbuild/scripts/env2mfile.py

@@ -231,6 +231,12 @@ def dpkg_architecture_to_machine_info(output: str, options: T.Any) -> MachineInf
     except ValueError:
         pass
     for tool in [
+        'g-ir-annotation-tool',
+        'g-ir-compiler',
+        'g-ir-doc-tool',
+        'g-ir-generate',
+        'g-ir-inspect',
+        'g-ir-scanner',
         'pkg-config',
     ]:
         try:

unittests/internaltests.py

@@ -1750,6 +1750,12 @@ class InternalTests(unittest.TestCase):
                 'cmake': ['/usr/bin/cmake'],
                 'pkg-config': [f'/usr/bin/{gnu_tuple}-pkg-config'],
                 'cups-config': ['/usr/bin/cups-config'],
+                'g-ir-annotation-tool': [f'/usr/bin/{gnu_tuple}-g-ir-annotation-tool'],
+                'g-ir-compiler': [f'/usr/bin/{gnu_tuple}-g-ir-compiler'],
+                'g-ir-doc-tool': [f'/usr/bin/{gnu_tuple}-g-ir-doc-tool'],
+                'g-ir-generate': [f'/usr/bin/{gnu_tuple}-g-ir-generate'],
+                'g-ir-inspect': [f'/usr/bin/{gnu_tuple}-g-ir-inspect'],
+                'g-ir-scanner': [f'/usr/bin/{gnu_tuple}-g-ir-scanner'],
             }
 
         for title, dpkg_arch, gccsuffix, env, expected in [