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tcg/tci: Disable -Wundef FFI_GO_CLOSURES warning

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Since we build TCI with FFI (commit 22f15579fa "tcg: Build ffi data
structures for helpers") we get on Darwin:

  In file included from ../../tcg/tci.c:22:
  In file included from include/tcg/helper-info.h:13:
  /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/ffi/ffi.h:483:5: warning: 'FFI_GO_CLOSURES' is not defined, evaluates to 0 [-Wundef]
    483 | #if FFI_GO_CLOSURES
        |     ^
  1 warning generated.

This was fixed in upstream libffi in 2023, but not backported to MacOSX.
Simply disable the warning locally.

Reported-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson
2025-12-03 14:04:21 +00:00
parent 93fa829344
commit 8c00f56fca
1 changed files with 12 additions and 0 deletions
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12
include/tcg/helper-info.h
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@@ -10,7 +10,19 @@
#define TCG_HELPER_INFO_H
#ifdef CONFIG_TCG_INTERPRETER
/*
* MacOSX 15 uses an old version of libffi which contains
* #if FFI_GO_CLOSURES
* but does not define that in <ffitarget.h>, included from <ffi.h>.
* This was fixed upstream with
* https://github.com/libffi/libffi/commit/c23e9a1c
* We don't care about go closures one way or the other;
* just suppress the warning.
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wundef"
#include <ffi.h>
#pragma GCC diagnostic pop
#endif
#include "tcg-target-reg-bits.h"