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# musl.m4
# serial 4
dnl Copyright (C) 2019-2025 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl This file is offered as-is, without any warranty.
# Test for musl libc, despite the musl libc authors don't like it
# <https://wiki.musl-libc.org/faq.html>
# <https://lists.gnu.org/archive/html/bug-gnulib/2018-02/msg00079.html>.
# From Bruno Haible.
AC_DEFUN_ONCE([gl_MUSL_LIBC],
[
AC_REQUIRE([AC_CANONICAL_HOST])
case "$host_os" in
*-musl* | midipix*)
AC_DEFINE([MUSL_LIBC], [1], [Define to 1 on musl libc.])
;;
esac
])
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