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openmpi/config/ompi_microsoft.m4

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dnl -*- shell-script -*-
dnl
dnl Copyright (c) 2004-2007 The University of Tennessee and The University
dnl of Tennessee Research Foundation. All rights
dnl reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
dnl
dnl $HEADER$
dnl
######################################################################
#
# OMPI_MICROSOFT_COMPILER
#
# Keep all the Windows checks in one place.
#
# USAGE:
# OMPI_MICROSOFT_COMPILER()
#
######################################################################
AC_DEFUN([OMPI_MICROSOFT_COMPILER],[
# If we are using one of the Microsoft compilers check that we are
# able to include windows.h. Most of the types that follow are defined
# in this file. If we check for it here it will get included in the
# default list of header files.
if test "x$ompi_cv_c_compiler_vendor" = "xmicrosoft" ; then
ompi_show_subtitle "Microsoft specific detection"
#
# These 2 libraries are a minimum ...
SAVE_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS Ws2_32.lib Advapi32.lib"
AC_CHECK_HEADERS([windows.h winsock2.h wdm.h])
# The atomic functions are defined in a very unuasual manner.
# Some of them are intrinsic defined in windows.h others are
# exported by kernel32.dll. If we force the usage of AC_TRY_RUN
# here we will check for both in same time: compilation and run.
AC_MSG_CHECKING(for working InterlockedCompareExchange)
AC_TRY_RUN( [#include <windows.h>
int main() {
LONG dest = 1, exchange = 0, comperand = 1;
SetErrorMode(SEM_FAILCRITICALERRORS);
InterlockedCompareExchange( &dest, exchange, comperand );
return (int)dest;
}],
[AC_MSG_RESULT(yes)
ompi_windows_have_support_for_32_bits_atomic=1],
[AC_MSG_RESULT(no)
ompi_windows_have_support_for_32_bits_atomic=0])
AC_DEFINE_UNQUOTED(HAVE_INTERLOCKEDCOMPAREEXCHANGE,
$ompi_windows_have_support_for_32_bits_atomic,
[Whether we support 32 bits atomic operations on Windows])
AC_MSG_CHECKING(for working InterlockedCompareExchangeAcquire)
AC_TRY_RUN( [#include <windows.h>
int main() {
LONG dest = 1, exchange = 0, comperand = 1;
SetErrorMode(SEM_FAILCRITICALERRORS);
InterlockedCompareExchangeAcquire( &dest, exchange, comperand );
return (int)dest;
}],
[AC_MSG_RESULT(yes)
ompi_windows_have_support_for_32_bits_atomic=1],
[AC_MSG_RESULT(no)
ompi_windows_have_support_for_32_bits_atomic=0])
AC_DEFINE_UNQUOTED(HAVE_INTERLOCKEDCOMPAREEXCHANGEACQUIRE,
$ompi_windows_have_support_for_32_bits_atomic,
[Whether we support 32 bits atomic operations on Windows])
AC_MSG_CHECKING(for working InterlockedCompareExchangeRelease)
AC_TRY_RUN( [#include <windows.h>
int main() {
LONG dest = 1, exchange = 0, comperand = 1;
SetErrorMode(SEM_FAILCRITICALERRORS);
InterlockedCompareExchangeRelease( &dest, exchange, comperand );
return (int)dest;
}],
[AC_MSG_RESULT(yes)
ompi_windows_have_support_for_32_bits_atomic=1],
[AC_MSG_RESULT(no)
ompi_windows_have_support_for_32_bits_atomic=0])
AC_DEFINE_UNQUOTED(HAVE_INTERLOCKEDCOMPAREEXCHANGERELEASE,
$ompi_windows_have_support_for_32_bits_atomic,
[Whether we support 32 bits atomic operations on Windows])
AC_MSG_CHECKING(for working InterlockedCompareExchange64)
AC_TRY_RUN( [#include <windows.h>
int main() {
LONGLONG dest = 1, exchange = 0, comperand = 1;
SetErrorMode(SEM_FAILCRITICALERRORS);
InterlockedCompareExchange64( &dest, exchange, comperand );
return (int)dest;
}],
[AC_MSG_RESULT(yes)
ompi_windows_have_support_for_64_bits_atomic=1],
[AC_MSG_RESULT(no)
ompi_windows_have_support_for_64_bits_atomic=0])
AC_DEFINE_UNQUOTED(HAVE_INTERLOCKEDCOMPAREEXCHANGE64,
$ompi_windows_have_support_for_64_bits_atomic,
[Whether we support 64 bits atomic operations on Windows])
ompi_show_title "Windows Type tests"
AC_DEFINE([pid_t], [intptr_t], [Windows pid_t type is a pointer])
AC_DEFINE_UNQUOTED([SIZEOF_PID_T], $ac_cv_sizeof_int,
[and here is it's size])
AC_CHECK_TYPES([socklen_t], [AC_DEFINE([HAVE_SOCKLEN_T], [1],
[Whether we have socklen_t or not])],
[AC_DEFINE(socklen_t, unsigned int,
[Define to unsigned int if you dont have it])],
[#include <winsock2.h>
#include <ws2tcpip.h>])
AC_CHECK_TYPES([struct sockaddr_in], [], [],
[AC_INCLUDES_DEFAULT
#include <winsock2.h>
#include <ws2tcpip.h>])
LDFLAGS="$SAVE_LDFLAGS"
fi
])