Re: [PATCH] rust: add --rust-target option for bindgen

[Philippe Mathieu-Daudé]

On 6/2/25 12:15, Paolo Bonzini wrote:

Without it, recent bindgen will give an error

    error: extern block cannot be declared unsafe

if rustc is not new enough to support the "unsafe extern" construct.

Cc: qemu-r...@nongnu.org
Cc: qemu-sta...@nongnu.org
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
  meson.build | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/meson.build b/meson.build
index 2c9ac9cfe1e..131b2225ab6 100644
--- a/meson.build
+++ b/meson.build
@@ -4054,6 +4054,9 @@ if have_rust
        bindgen_args += ['--formatter', 'none']
      endif
    endif
+  if bindgen.version().version_compare('>=0.66.0')
+    bindgen_args += ['--rust-target', '1.59']
+  endif
    if bindgen.version().version_compare('<0.61.0')
      # default in 0.61+
      bindgen_args += ['--size_t-is-usize']

Should this be merged directly on master as build-fix?