[PATCH v4 03/13] tests/fp/berkeley-testfloat-3: Ignore ignored #pragma directives

[Philippe Mathieu-Daudé]

Since we already use -Wno-unknown-pragmas, we can also use
-Wno-ignored-pragmas. This silences hundred of warnings using
clang 13 on macOS Monterey:

  [409/771] Compiling C object 
tests/fp/libtestfloat.a.p/berkeley-testfloat-3_source_test_az_f128_rx.c.o
  ../tests/fp/berkeley-testfloat-3/source/test_az_f128_rx.c:49:14: warning: 
'#pragma FENV_ACCESS' is not supported on this target - ignored 
[-Wignored-pragmas]
  #pragma STDC FENV_ACCESS ON
               ^
  1 warning generated.

Having:

  $ cc -v
  Apple clang version 13.0.0 (clang-1300.0.29.30)

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 tests/fp/meson.build | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/fp/meson.build b/tests/fp/meson.build
index 59776a00a7..5192264a08 100644
--- a/tests/fp/meson.build
+++ b/tests/fp/meson.build
@@ -30,6 +30,7 @@ tfcflags = [
   '-Wno-implicit-fallthrough',
   '-Wno-strict-prototypes',
   '-Wno-unknown-pragmas',
+  '-Wno-ignored-pragmas',
   '-Wno-uninitialized',
   '-Wno-missing-prototypes',
   '-Wno-return-type',
-- 
2.34.1