configure: fix rust meson configuration

It was incorrectly set on the [host_machine] and caused error:
File "/tmp/qemu-test/build/pyvenv/lib/python3.11/site-packages/mesonbuild/envconfig.py", line 281, in from_literal
    assert all(isinstance(v, str) for v in raw.values()), 'for mypy'
AssertionError: for mypy

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250924120426.2158655-7-marcandre.lureau@redhat.com>

diff --git a/configure b/configure
index 0f7eb95586b028bc60f40ad9a7d48449b334c374..66613f3f4c6458007814ede31f2d03c297fae3cb 100755 (executable)
--- a/configure
+++ b/configure
@@ -1958,7 +1958,7 @@ if test "$skip_meson" = no; then
     echo "[binaries]" >> $native
     echo "c = [$(meson_quote $host_cc)]" >> $native
     if test "$rust" != disabled; then
-      echo "rust = [$(meson_quote $rustc)]" >> $cross
+      echo "rust = [$(meson_quote $rustc)]" >> $native
     fi
     mv $native config-meson.native
     meson_option_add --native-file