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# memrchr.m4 serial 10
dnl Copyright (C) 2002-2003, 2005-2007, 2009-2020 Free Software Foundation,
dnl 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.
AC_DEFUN([gl_FUNC_MEMRCHR],
[
dnl Persuade glibc <string.h> to declare memrchr().
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
AC_CHECK_DECLS_ONCE([memrchr])
if test $ac_cv_have_decl_memrchr = no; then
HAVE_DECL_MEMRCHR=0
fi
AC_CHECK_FUNCS([memrchr])
])
# Prerequisites of lib/memrchr.c.
AC_DEFUN([gl_PREREQ_MEMRCHR], [:])
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