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Avoid clang warnings regarding [[__maybe_unused__]].
authorBruno Haible <bruno@clisp.org>
Fri, 10 Feb 2023 02:53:24 +0000 (03:53 +0100)
committerBruno Haible <bruno@clisp.org>
Fri, 10 Feb 2023 02:55:58 +0000 (03:55 +0100)
commitec33596f7be50689634067a22fdcc04e3bf48ae3
tree03c33bab6652ecd0a21a9484d84842f82d5577a3
parent7c9199eaeacec407bd82f12fc7731caab2040a4d
Avoid clang warnings regarding [[__maybe_unused__]].

* m4/gnulib-common.m4 (gl_COMMON_BODY): For clang versions ≥ 6, < 10,
in C++ mode, ignore the __has_c_attribute value and define
_GL_ATTRIBUTE_MAYBE_UNUSED to __attribute__ ((__unused__)), not
[[__maybe_unused__]].
ChangeLog
m4/gnulib-common.m4