binutils-gdb/gnulib/import/m4/arpa_inet_h.m4
Simon Marchi 5df4cba632 gdb: update gnulib import
This is mostly to get this commit from gnulib:

    e22cd2677a4b7beacbf30b93bb0559f7b89f96ce
    Add ‘extern "C"’ to count-one-bits.h etc.

... which fixes this compilation problem I observed with clang++:

      CXXLD  gdb
    arch/arm-get-next-pcs.o:arm-get-next-pcs.c:function thumb_get_next_pcs_raw(arm_get_next_pcs*): error: undefined reference to 'count_one_bits(unsigned int)'
    <more such undefined references>

I built-tested on GNU/Linux x86-64 (gcc-9 and clang-9) as well as with the
x86_64-w64-mingw32-gcc cross-compiler.

gnulib/ChangeLog:

	* update-gnulib.sh (GNULIB_COMMIT_SHA1): Bump to
	e22cd2677a4b7beacbf30b93bb0559f7b89f96ce.
	* Makefile.in, config.in, configure, import/*: Re-generate.
2020-02-22 20:37:18 -05:00

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# arpa_inet_h.m4 serial 14
dnl Copyright (C) 2006, 2008-2020 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 Written by Simon Josefsson and Bruno Haible
AC_DEFUN([gl_HEADER_ARPA_INET],
[
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_ARPA_INET_H_DEFAULTS])
AC_CHECK_HEADERS_ONCE([arpa/inet.h])
if test $ac_cv_header_arpa_inet_h = yes; then
HAVE_ARPA_INET_H=1
else
HAVE_ARPA_INET_H=0
fi
AC_SUBST([HAVE_ARPA_INET_H])
dnl <arpa/inet.h> is always overridden, because of GNULIB_POSIXCHECK.
gl_CHECK_NEXT_HEADERS([arpa/inet.h])
AC_REQUIRE([gl_FEATURES_H])
gl_PREREQ_SYS_H_WS2TCPIP
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([[
/* On some systems, this header is not self-consistent. */
#if !(defined __GLIBC__ || defined __UCLIBC__)
# include <sys/socket.h>
#endif
#ifdef __TANDEM
# include <netdb.h>
#endif
#include <arpa/inet.h>
]], [inet_ntop inet_pton])
])
AC_DEFUN([gl_ARPA_INET_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
])
AC_DEFUN([gl_ARPA_INET_H_DEFAULTS],
[
GNULIB_INET_NTOP=0; AC_SUBST([GNULIB_INET_NTOP])
GNULIB_INET_PTON=0; AC_SUBST([GNULIB_INET_PTON])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_DECL_INET_NTOP=1; AC_SUBST([HAVE_DECL_INET_NTOP])
HAVE_DECL_INET_PTON=1; AC_SUBST([HAVE_DECL_INET_PTON])
REPLACE_INET_NTOP=0; AC_SUBST([REPLACE_INET_NTOP])
REPLACE_INET_PTON=0; AC_SUBST([REPLACE_INET_PTON])
])