461 lines
12 KiB
Plaintext
461 lines
12 KiB
Plaintext
#***************************************************************************
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# $Id$
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#
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# Copyright (C) 2008 by Daniel Stenberg et al
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#
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# Permission to use, copy, modify, and distribute this software and its
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# documentation for any purpose and without fee is hereby granted, provided
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# that the above copyright notice appear in all copies and that both that
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# copyright notice and this permission notice appear in supporting
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# documentation, and that the name of M.I.T. not be used in advertising or
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# publicity pertaining to distribution of the software without specific,
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# written prior permission. M.I.T. makes no representations about the
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# suitability of this software for any purpose. It is provided "as is"
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# without express or implied warranty.
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#
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#***************************************************************************
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# File version for 'aclocal' use. Keep it a single number.
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# serial 3
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dnl Note 1
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dnl ------
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dnl None of the CARES_CHECK_NEED_REENTRANT_* macros shall use HAVE_FOO_H to
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dnl conditionally include header files. These macros are used early in the
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dnl configure process much before header file availability is known.
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dnl CARES_CHECK_NEED_REENTRANT_GMTIME_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function gmtime_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GMTIME_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([gmtime_r])
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],[
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tmp_gmtime_r="yes"
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],[
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tmp_gmtime_r="no"
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])
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if test "$tmp_gmtime_r" = "yes"; then
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AC_EGREP_CPP([gmtime_r],[
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#include <sys/types.h>
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#include <time.h>
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],[
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tmp_gmtime_r="proto_declared"
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],[
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AC_EGREP_CPP([gmtime_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <time.h>
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],[
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tmp_gmtime_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_LOCALTIME_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function localtime_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_LOCALTIME_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([localtime_r])
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],[
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tmp_localtime_r="yes"
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],[
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tmp_localtime_r="no"
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])
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if test "$tmp_localtime_r" = "yes"; then
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AC_EGREP_CPP([localtime_r],[
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#include <sys/types.h>
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#include <time.h>
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],[
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tmp_localtime_r="proto_declared"
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],[
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AC_EGREP_CPP([localtime_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <time.h>
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],[
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tmp_localtime_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_STRERROR_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function strerror_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_STRERROR_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([strerror_r])
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],[
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tmp_strerror_r="yes"
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],[
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tmp_strerror_r="no"
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])
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if test "$tmp_strerror_r" = "yes"; then
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AC_EGREP_CPP([strerror_r],[
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#include <sys/types.h>
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#include <string.h>
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],[
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tmp_strerror_r="proto_declared"
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],[
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AC_EGREP_CPP([strerror_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <string.h>
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],[
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tmp_strerror_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_STRTOK_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function strtok_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_STRTOK_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([strtok_r])
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],[
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tmp_strtok_r="yes"
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],[
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tmp_strtok_r="no"
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])
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if test "$tmp_strtok_r" = "yes"; then
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AC_EGREP_CPP([strtok_r],[
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#include <sys/types.h>
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#include <string.h>
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],[
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tmp_strtok_r="proto_declared"
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],[
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AC_EGREP_CPP([strtok_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <string.h>
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],[
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tmp_strtok_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_INET_NTOA_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function inet_ntoa_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_INET_NTOA_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([inet_ntoa_r])
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],[
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tmp_inet_ntoa_r="yes"
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],[
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tmp_inet_ntoa_r="no"
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])
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if test "$tmp_inet_ntoa_r" = "yes"; then
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AC_EGREP_CPP([inet_ntoa_r],[
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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],[
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tmp_inet_ntoa_r="proto_declared"
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],[
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AC_EGREP_CPP([inet_ntoa_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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],[
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tmp_inet_ntoa_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function gethostbyaddr_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([gethostbyaddr_r])
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],[
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tmp_gethostbyaddr_r="yes"
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],[
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tmp_gethostbyaddr_r="no"
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])
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if test "$tmp_gethostbyaddr_r" = "yes"; then
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AC_EGREP_CPP([gethostbyaddr_r],[
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_gethostbyaddr_r="proto_declared"
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],[
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AC_EGREP_CPP([gethostbyaddr_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_gethostbyaddr_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function gethostbyname_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([gethostbyname_r])
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],[
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tmp_gethostbyname_r="yes"
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],[
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tmp_gethostbyname_r="no"
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])
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if test "$tmp_gethostbyname_r" = "yes"; then
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AC_EGREP_CPP([gethostbyname_r],[
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_gethostbyname_r="proto_declared"
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],[
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AC_EGREP_CPP([gethostbyname_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_gethostbyname_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function getprotobyname_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([getprotobyname_r])
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],[
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tmp_getprotobyname_r="yes"
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],[
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tmp_getprotobyname_r="no"
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])
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if test "$tmp_getprotobyname_r" = "yes"; then
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AC_EGREP_CPP([getprotobyname_r],[
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_getprotobyname_r="proto_declared"
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],[
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AC_EGREP_CPP([getprotobyname_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_getprotobyname_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes function getservbyport_r compiler visible.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R], [
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AC_LINK_IFELSE([
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AC_LANG_FUNC_LINK_TRY([getservbyport_r])
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],[
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tmp_getservbyport_r="yes"
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],[
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tmp_getservbyport_r="no"
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])
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if test "$tmp_getservbyport_r" = "yes"; then
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AC_EGREP_CPP([getservbyport_r],[
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_getservbyport_r="proto_declared"
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],[
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AC_EGREP_CPP([getservbyport_r],[
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#define _REENTRANT
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#include <sys/types.h>
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#include <netdb.h>
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],[
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tmp_getservbyport_r="proto_needs_reentrant"
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tmp_need_reentrant="yes"
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])
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])
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl makes several _r functions compiler visible.
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dnl Internal macro for CARES_CONFIGURE_REENTRANT.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R], [
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_GMTIME_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_LOCALTIME_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_STRERROR_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_STRTOK_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_INET_NTOA_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_GETHOSTBYADDR_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_GETHOSTBYNAME_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_GETPROTOBYNAME_R
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fi
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_GETSERVBYPORT_R
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fi
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])
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dnl CARES_CHECK_NEED_REENTRANT_SYSTEM
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dnl -------------------------------------------------
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dnl Checks if the preprocessor _REENTRANT definition
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dnl must be unconditionally done for this platform.
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dnl Internal macro for CARES_CONFIGURE_REENTRANT.
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AC_DEFUN([CARES_CHECK_NEED_REENTRANT_SYSTEM], [
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case $host in
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*-*-solaris*)
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tmp_need_reentrant="yes"
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;;
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*)
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tmp_need_reentrant="no"
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;;
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esac
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])
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dnl CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT
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dnl -------------------------------------------------
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dnl This macro ensures that configuration tests done
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dnl after this will execute with preprocessor symbol
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dnl _REENTRANT defined. This macro also ensures that
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dnl the generated config file defines NEED_REENTRANT
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dnl and that in turn setup.h will define _REENTRANT.
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dnl Internal macro for CARES_CONFIGURE_REENTRANT.
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AC_DEFUN([CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT], [
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AC_DEFINE(NEED_REENTRANT, 1,
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[Define to 1 if _REENTRANT preprocessor symbol must be defined.])
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cat >>confdefs.h <<_EOF
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#ifndef _REENTRANT
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# define _REENTRANT
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#endif
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_EOF
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])
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dnl CARES_CONFIGURE_REENTRANT
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dnl -------------------------------------------------
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dnl This first checks if the preprocessor _REENTRANT
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dnl symbol is already defined. If it isn't currently
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dnl defined a set of checks are performed to verify
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dnl if its definition is required to make visible to
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dnl the compiler a set of *_r functions. Finally, if
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dnl _REENTRANT is already defined or needed it takes
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dnl care of making adjustments necessary to ensure
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dnl that it is defined equally for further configure
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dnl tests and generated config file.
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AC_DEFUN([CARES_CONFIGURE_REENTRANT], [
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AC_PREREQ([2.50])dnl
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#
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AC_MSG_CHECKING([if _REENTRANT is already defined])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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]],[[
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#ifdef _REENTRANT
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int dummy=1;
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#else
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force compilation error
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#endif
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]])
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],[
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AC_MSG_RESULT([yes])
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tmp_reentrant_initially_defined="yes"
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],[
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AC_MSG_RESULT([no])
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tmp_reentrant_initially_defined="no"
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])
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#
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if test "$tmp_reentrant_initially_defined" = "no"; then
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AC_MSG_CHECKING([if _REENTRANT is actually needed])
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CARES_CHECK_NEED_REENTRANT_SYSTEM
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if test "$tmp_need_reentrant" = "no"; then
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CARES_CHECK_NEED_REENTRANT_FUNCTIONS_R
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fi
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if test "$tmp_need_reentrant" = "yes"; then
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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fi
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fi
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#
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AC_MSG_CHECKING([if _REENTRANT is onwards defined])
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if test "$tmp_reentrant_initially_defined" = "yes" ||
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test "$tmp_need_reentrant" = "yes"; then
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CARES_CONFIGURE_FROM_NOW_ON_WITH_REENTRANT
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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fi
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#
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])
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