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# dprintf-gnu.m4 serial 1
dnl Copyright (C) 2023 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.
AC_DEFUN([gl_FUNC_DPRINTF_GNU],
[
AC_REQUIRE([gl_FUNC_DPRINTF_IS_POSIX])
AC_REQUIRE([gl_PRINTF_DIRECTIVE_UPPERCASE_B])
gl_cv_func_dprintf_gnu=no
if test $gl_cv_func_dprintf_posix = yes; then
case "$gl_cv_func_printf_directive_uppercase_b" in
*yes)
# dprintf exists and is already POSIX compliant and GNU compatible.
gl_cv_func_dprintf_gnu=yes
;;
esac
fi
if test $gl_cv_func_dprintf_gnu = no; then
gl_PREREQ_VASNPRINTF_WITH_GNU_EXTRAS
gl_REPLACE_VASNPRINTF
gl_REPLACE_DPRINTF
fi
])
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