master 3287d4e32e: Another attempt to void compiler warnings on macOS (bug#55595)

[Eli Zaretskii]

branch: master
commit 3287d4e32efbe6c9490ecd4132f19fa13f4ae1ae
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    Another attempt to void compiler warnings on macOS (bug#55595)
    
    * configure.ac (WERROR_CFLAGS): Use "-Wno-unknown-pragmas" with
    Clang.
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index ed8ec890ac..313a1436b5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1024,6 +1024,7 @@ AS_IF([test $gl_gcc_warnings = no],
      gl_WARN_ADD([-Wno-pointer-sign])
      gl_WARN_ADD([-Wno-string-plus-int])
      gl_WARN_ADD([-Wno-unknown-attributes])
+     gl_WARN_ADD([-Wno-unknown-pragmas])
    ])
  ],[
   isystem='-isystem '