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# Configure a replacement for <strings.h>.
# serial 6
# Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_HEADER_STRINGS_H],
[
dnl Use AC_REQUIRE here, so that the default behavior below is expanded
dnl once only, before all statements that occur in other macros.
AC_REQUIRE([gl_HEADER_STRINGS_H_BODY])
])
AC_DEFUN([gl_HEADER_STRINGS_H_BODY],
[
AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS])
gl_CHECK_NEXT_HEADERS([strings.h])
if test $ac_cv_header_strings_h = yes; then
HAVE_STRINGS_H=1
else
HAVE_STRINGS_H=0
fi
AC_SUBST([HAVE_STRINGS_H])
dnl Check for declarations of anything we want to poison if the
dnl corresponding gnulib module is not in use.
gl_WARN_ON_USE_PREPARE([[
/* Minix 3.1.8 has a bug: <sys/types.h> must be included before
<strings.h>. */
#include <sys/types.h>
#include <strings.h>
]], [ffs strcasecmp strncasecmp])
])
AC_DEFUN([gl_STRINGS_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
])
AC_DEFUN([gl_HEADER_STRINGS_H_DEFAULTS],
[
GNULIB_FFS=0; AC_SUBST([GNULIB_FFS])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_FFS=1; AC_SUBST([HAVE_FFS])
HAVE_STRCASECMP=1; AC_SUBST([HAVE_STRCASECMP])
HAVE_DECL_STRNCASECMP=1; AC_SUBST([HAVE_DECL_STRNCASECMP])
])
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