Fixing compilation on MSWindows

src/OSspecific/MSWindows/MSwindows.C

@@ -43,6 +43,8 @@ Description
 #include <map>
 
 // Windows system header files
+// DebugInfo macro defined in messageStream.H clashes with Windows headers
+#undef DebugInfo
 #include <io.h> // _close
 #include <windows.h>
 #include <signal.h>
@@ -372,7 +374,7 @@ string getEnv(const word& envName)
 bool setEnv
 (
     const word& envName,
-    const string& value,
+    const std::string& value,
     const bool overwrite
 )
 {
@@ -382,9 +384,8 @@ bool setEnv
 }
 
 
-word hostName()
+string hostName(bool full)
 {
-    const bool full = true;
     const DWORD bufferSize = MAX_COMPUTERNAME_LENGTH + 1;
     TCHAR buffer[bufferSize];
     DWORD actualBufferSize = bufferSize;
@@ -392,6 +393,17 @@ word hostName()
     const bool success =
       ::GetComputerName(buffer, &actualBufferSize);
     const string computerName = success ? buffer : string::null;
+
+    // implementation as per hostname from net-tools
+    if (full)
+    {
+        struct hostent *hp = gethostbyname(computerName.c_str());
+        if (hp)
+        {
+            return hp->h_name;
+        }
+    }
+
     return computerName;
 }
 
@@ -405,7 +417,7 @@ string domainName()
 }
 
 
-word userName()
+string userName()
 {
     std::string name = getEnv("USERNAME");
 
@@ -438,7 +450,7 @@ fileName home()
 }
 
 
-fileName home(const word& userName)
+fileName home(const string& userName)
 {
     return home();
 }
@@ -1287,7 +1299,7 @@ void* dlOpen(const fileName& libName, const bool check)
         // Assumes libName = name
         winLibName = "lib";
         winLibName += libName;
-        winLibName += dllExt;
+        winLibName += ".dll";
 
         handle = ::LoadLibrary(winLibName.c_str());
     }

src/OSspecific/MSWindows/Make/files

@@ -9,6 +9,17 @@ MSwindows.C
 cpuTime/cpuTime.C
 clockTime/clockTime.C
 multiThreader/multiThreader.C
+
+/*
+ * Note: fileMonitor assumes inotify by default. Compile with -DFOAM_USE_STAT
+ * to use stat (=timestamps) instead of inotify
+ */
+fileMonitor.C
+
+#ifdef SunOS64
+dummyPrintStack.C
+#else
 printStack.C
+#endif
 
 LIB = $(FOAM_LIBBIN)/libOSspecific

src/OSspecific/MSWindows/fileMonitor.C

@@ -0,0 +1,427 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | foam-extend: Open Source CFD
+   \\    /   O peration     | Version:     4.1
+    \\  /    A nd           | Web:         http://www.foam-extend.org
+     \\/     M anipulation  | For copyright notice see file Copyright
+-------------------------------------------------------------------------------
+License
+    This file is part of foam-extend.
+
+    foam-extend is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    foam-extend is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "fileMonitor.H"
+#include "IOstreams.H"
+#include "Pstream.H"
+#include "PackedList.H"
+#include "PstreamReduceOps.H"
+#include "OSspecific.H"
+#include "regIOobject.H"     // for fileModificationSkew symbol
+
+#ifdef FOAM_USE_INOTIFY
+#   error "fileMonitor.C: FOAM_USE_INOTIFY is not supported on MSWindows"
+#else
+#   include "OSspecific.H"
+#endif
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+const Foam::NamedEnum<Foam::fileMonitor::fileState, 3>
+    Foam::fileMonitor::fileStateNames_;
+
+namespace Foam
+{
+    defineTypeNameAndDebug(fileMonitor, 0);
+
+    template<>
+    const char* Foam::NamedEnum
+    <
+        Foam::fileMonitor::fileState,
+        3
+    >::names[] =
+    {
+        "unmodified",
+        "modified",
+        "deleted"
+    };
+
+    //- Reduction operator for PackedList of fileState
+    class reduceFileStates
+    {
+        public:
+        unsigned int operator()(const unsigned int x, const unsigned int y)
+        const
+        {
+            // x,y are sets of 2bits representing fileState
+
+            unsigned int mask = 3u;
+            unsigned int shift = 0;
+            unsigned int result = 0;
+
+            while (mask)
+            {
+                // Combine state
+                unsigned int xState = (x & mask) >> shift;
+                unsigned int yState = (y & mask) >> shift;
+
+                // Combine and add to result. Combine is such that UNMODIFIED
+                // wins.
+                unsigned int state = min(xState, yState);
+                result |= (state << shift);
+
+                shift += 2;
+                mask <<= 2;
+            }
+            return result;
+        }
+    };
+
+    //- Combine operator for PackedList of fileState
+    class combineReduceFileStates
+    {
+        public:
+        void operator()(unsigned int& x, const unsigned int y) const
+        {
+            x = reduceFileStates()(x, y);
+        }
+    };
+
+
+
+    //-  Internal tracking via stat(3p) or inotify(7)
+    class fileMonitorWatcher
+    {
+    public:
+
+        const bool useInotify_;
+
+        // For inotify
+
+            //- File descriptor for the inotify instance
+            int inotifyFd_;
+
+            //- Current watchIDs and corresponding directory id
+            DynamicList<label> dirWatches_;
+            DynamicList<fileName> dirFiles_;
+
+        // For stat
+
+            //- From watch descriptor to modified time
+            DynamicList<time_t> lastMod_;
+
+
+
+        //- Initialise inotify
+        inline fileMonitorWatcher(const bool useInotify, const label sz = 20)
+        :
+            useInotify_(useInotify),
+            inotifyFd_(-1)
+        {
+            if (useInotify_)
+            {
+                FatalErrorIn("fileMonitorWatcher(const bool, const label)")
+                    << "You selected inotify but this file was compiled"
+                    << " without FOAM_USE_INOTIFY"
+                    << " Please select another fileModification test method"
+                    << exit(FatalError);
+            }
+            else
+            {
+                lastMod_.setCapacity(sz);
+            }
+        }
+
+        //- Remove all watches
+        inline ~fileMonitorWatcher()
+        {
+        }
+
+        inline bool addWatch(const label watchFd, const fileName& fName)
+        {
+            {
+                if (watchFd < lastMod_.size() && lastMod_[watchFd] != 0)
+                {
+                    // Reuse of watchFd : should have lastMod set to 0.
+                    FatalErrorIn("addWatch(const label, const fileName&)")
+                        << "Problem adding watch " << watchFd
+                        << " to file " << fName
+                        << abort(FatalError);
+                }
+
+                lastMod_(watchFd) = lastModified(fName);
+            }
+
+            return true;
+        }
+
+        inline bool removeWatch(const label watchFd)
+        {
+            if (useInotify_)
+            {
+                if (inotifyFd_ < 0)
+                {
+                    return false;
+                }
+
+                dirWatches_[watchFd] = -1;
+            }
+            else
+            {
+                lastMod_[watchFd] = 0;
+            }
+            return true;
+        }
+
+    };
+}
+
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+void Foam::fileMonitor::checkFiles() const
+{
+    {
+        forAll(watcher_->lastMod_, watchFd)
+        {
+            time_t oldTime = watcher_->lastMod_[watchFd];
+
+            if (oldTime != 0)
+            {
+                const fileName& fName = watchFile_[watchFd];
+                time_t newTime = lastModified(fName);
+
+                if (newTime == 0)
+                {
+                    localState_[watchFd] = DELETED;
+                }
+                else
+                {
+                    if (newTime > (oldTime + regIOobject::fileModificationSkew()))
+                    {
+                        localState_[watchFd] = MODIFIED;
+                    }
+                    else
+                    {
+                        localState_[watchFd] = UNMODIFIED;
+                    }
+                }
+            }
+        }
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+
+Foam::fileMonitor::fileMonitor(const bool useInotify)
+:
+    useInotify_(useInotify),
+    localState_(20),
+    state_(20),
+    watchFile_(20),
+    freeWatchFds_(2),
+    watcher_(new fileMonitorWatcher(useInotify_, 20))
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::fileMonitor::~fileMonitor()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+// Note: fName might not exist (on slaves if in master-only mode for
+// regIOobject)
+Foam::label Foam::fileMonitor::addWatch(const fileName& fName)
+{
+    label watchFd;
+
+    label sz = freeWatchFds_.size();
+
+    if (sz)
+    {
+        watchFd = freeWatchFds_[sz-1];
+        freeWatchFds_.setSize(sz-1);
+    }
+    else
+    {
+        watchFd = state_.size();
+    }
+
+    watcher_->addWatch(watchFd, fName);
+
+    if (debug)
+    {
+        Pout<< "fileMonitor : added watch " << watchFd << " on file "
+            << fName << endl;
+    }
+
+    if (watchFd < 0)
+    {
+        WarningIn("fileMonitor::addWatch(const fileName&)")
+            << "could not add watch for file " << fName << endl;
+    }
+    else
+    {
+        localState_(watchFd) = UNMODIFIED;
+        state_(watchFd) = UNMODIFIED;
+        watchFile_(watchFd) = fName;
+    }
+    return watchFd;
+}
+
+
+bool Foam::fileMonitor::removeWatch(const label watchFd)
+{
+    if (debug)
+    {
+        Pout<< "fileMonitor : removing watch " << watchFd << " on file "
+            << watchFile_[watchFd] << endl;
+    }
+
+    freeWatchFds_.append(watchFd);
+    return watcher_->removeWatch(watchFd);
+}
+
+
+const Foam::fileName& Foam::fileMonitor::getFile(const label watchFd) const
+{
+    return watchFile_[watchFd];
+}
+
+
+Foam::fileMonitor::fileState Foam::fileMonitor::getState(const label watchFd)
+const
+{
+    return state_[watchFd];
+}
+
+
+void Foam::fileMonitor::updateStates
+(
+    const bool masterOnly,
+    const bool syncPar
+) const
+{
+    if (Pstream::master() || !masterOnly)
+    {
+        // Update the localState_
+        checkFiles();
+    }
+
+    if (syncPar)
+    {
+        // Pack local state (might be on master only)
+        PackedList<2> stats(state_.size(), MODIFIED);
+        if (Pstream::master() || !masterOnly)
+        {
+            forAll(state_, watchFd)
+            {
+                stats[watchFd] = static_cast<unsigned int>
+                (
+                    localState_[watchFd]
+                );
+            }
+        }
+
+
+        // Scatter or reduce to synchronise state
+        if (masterOnly)
+        {
+            // Scatter
+            if (stats.storage().size() == 1)
+            {
+                Pstream::scatter(stats.storage()[0]);
+            }
+            else
+            {
+                Pstream::listCombineScatter(stats.storage());
+            }
+        }
+        else
+        {
+            // Reduce
+            if (stats.storage().size() == 1)
+            {
+                // Optimisation valid for most cases.
+                reduce(stats.storage()[0], reduceFileStates());
+            }
+            else
+            {
+                Pstream::listCombineGather
+                (
+                    stats.storage(),
+                    combineReduceFileStates()
+                );
+            }
+        }
+
+
+        // Update synchronised state
+        forAll(state_, watchFd)
+        {
+            // Assign synchronised state
+            unsigned int stat = stats[watchFd];
+            state_[watchFd] = fileState(stat);
+
+            if (!masterOnly)
+            {
+                // Give warning for inconsistent state
+                if (state_[watchFd] != localState_[watchFd])
+                {
+                    if (debug)
+                    {
+                        Pout<< "fileMonitor : Delaying reading "
+                            << watchFile_[watchFd]
+                            << " due to inconsistent "
+                               "file time-stamps between processors"
+                            << endl;
+                    }
+
+                    WarningIn
+                    (
+                        "fileMonitor::updateStates"
+                        "(const bool, const bool) const"
+                    )   << "Delaying reading " << watchFile_[watchFd]
+                        << " due to inconsistent "
+                           "file time-stamps between processors" << endl;
+                }
+            }
+        }
+    }
+    else
+    {
+        state_ = localState_;
+    }
+}
+
+
+void Foam::fileMonitor::setUnmodified(const label watchFd)
+{
+    state_[watchFd] = UNMODIFIED;
+    localState_[watchFd] = UNMODIFIED;
+
+    if (!useInotify_)
+    {
+        watcher_->lastMod_[watchFd] = lastModified(watchFile_[watchFd]);
+    }
+}
+
+
+// ************************************************************************* //

src/OSspecific/MSWindows/fileMonitor.H

@@ -0,0 +1,166 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | foam-extend: Open Source CFD
+   \\    /   O peration     | Version:     4.1
+    \\  /    A nd           | Web:         http://www.foam-extend.org
+     \\/     M anipulation  | For copyright notice see file Copyright
+-------------------------------------------------------------------------------
+License
+    This file is part of foam-extend.
+
+    foam-extend is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation, either version 3 of the License, or (at your
+    option) any later version.
+
+    foam-extend is distributed in the hope that it will be useful, but
+    WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::fileMonitor
+
+Description
+    Checking for changes to files.
+
+Note
+    The default is to use stat to get the timestamp.
+
+    Consider to use
+    FindFirstChangeNotification,
+    FindNextChangeNotification,
+    ReadDirectoryChangesW.
+    More info here:
+    http://msdn.microsoft.com/en-us/library/aa365261(VS.85).aspx
+    to re-implement inotify on MSWindows
+
+SourceFiles
+    fileMonitor.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef fileMonitor_H
+#define fileMonitor_H
+
+#include <sys/types.h>
+#include "NamedEnum.H"
+#include "className.H"
+#include "DynamicList.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class fileMonitor;
+class fileMonitorWatcher;
+
+/*---------------------------------------------------------------------------*\
+                         Class fileMonitor Declaration
+\*---------------------------------------------------------------------------*/
+
+class fileMonitor
+{
+
+public:
+
+    // Public data types
+
+        //- Enumeration defining the file state.
+        enum fileState
+        {
+            UNMODIFIED = 0,
+            MODIFIED = 1,
+            DELETED = 2
+        };
+
+        static const NamedEnum<fileState, 3> fileStateNames_;
+
+private:
+    // Private data
+
+        //- Whether to use inotify (requires -DFOAM_USE_INOTIFY, see above)
+        const bool useInotify_;
+
+        //- State for all watchFds based on local files
+        mutable DynamicList<fileState> localState_;
+
+        //- State for all watchFds - synchronised
+        mutable DynamicList<fileState> state_;
+
+        //- Filename for all watchFds
+        DynamicList<fileName> watchFile_;
+
+        //- Free watchFds
+        DynamicList<label> freeWatchFds_;
+
+        //- Watch mechanism (stat or inotify)
+        mutable autoPtr<fileMonitorWatcher> watcher_;
+
+
+    // Private Member Functions
+
+        //- Update localState_ from any events.
+        void checkFiles() const;
+
+        //- Disallow default bitwise copy construct
+        fileMonitor(const fileMonitor&);
+
+        //- Disallow default bitwise assignment
+        void operator=(const fileMonitor&);
+
+
+public:
+
+    // Declare name of the class and its debug switch
+    ClassName("fileMonitor");
+
+    // Constructors
+
+        //- Construct null
+        fileMonitor(const bool useInotify);
+
+
+    //- Destructor
+    ~fileMonitor();
+
+
+    // Member Functions
+
+        //- Add file to watch. Return watch descriptor
+        label addWatch(const fileName&);
+
+        //- Remove file to watch. Return true if successful
+        bool removeWatch(const label watchFd);
+
+        //- Get name of file being watched
+        const fileName& getFile(const label watchFd) const;
+
+        //- Check state using handle
+        fileState getState(const label watchFd) const;
+
+        //- Check state of all files. Updates state_.
+        void updateStates
+        (
+            const bool masterOnly,
+            const bool syncPar
+        ) const;
+
+        //- Reset state (e.g. after having read it) using handle
+        void setUnmodified(const label watchFd);
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

src/foam/Make/options

@@ -11,7 +11,8 @@ LIB_LIBS = $(PLIBS)\
     -L$(WM_THIRD_PARTY_DIR)/packages/system/lib \
     -ldl \
     -lpsapi \
-    -lpthread
+    -lpthread \
+    -lws2_32
 
 #else
 

src/foam/db/error/messageStream.H

@@ -279,7 +279,7 @@ extern messageStream Info;
 
 //- Report write to Foam::Info if the local log switch is true
 #define Log                                                                    \
-    if (log) Info
+    if (log) ::Foam::Info
 
 
 //- Report an IO information message using Foam::Info
@@ -297,7 +297,7 @@ extern messageStream Info;
 //- Report an information message using Foam::Info
 //  if the local debug switch is true
 #define DebugInfo                                                              \
-    if (debug) Info
+    if (debug) ::Foam::Info
 
 //- Report an information message using Foam::Info
 //  for FUNCTION_NAME in file __FILE__ at line __LINE__

src/foam/primitives/Scalar/doubleFloat.H

@@ -34,22 +34,48 @@ License
 #if defined(darwin) && defined(__clang__)
 #ifndef DUMMY_SCALAR_FUNCTIONS
 #define DUMMY_SCALAR_FUNCTIONS
-inline float j0f(float x) { return float(j0(double(x)));}
+inline float j0f(float x) { return float(j0(double(x))); }
-inline float j1f(float x) { return float(j1(double(x)));}
+inline float j1f(float x) { return float(j1(double(x))); }
-inline float y0f(float x) { return float(y0(double(x)));}
+inline float y0f(float x) { return float(y0(double(x))); }
-inline float y1f(float x) { return float(y1(double(x)));}
+inline float y1f(float x) { return float(y1(double(x))); }
 inline float jnf(const int n, const float s) { return float(jn(n, double(s))); }
 inline float ynf(const int n, const float s) { return float(yn(n, double(s))); }
 
-inline long double j0l(float x) { return double(j0(double(x)));}
+inline long double j0l(float x) { return double(j0(double(x))); }
-inline long double j1l(float x) { return double(j1(double(x)));}
+inline long double j1l(float x) { return double(j1(double(x))); }
-inline long double y0l(float x) { return double(y0(double(x)));}
+inline long double y0l(float x) { return double(y0(double(x))); }
-inline long double y1l(float x) { return double(y1(double(x)));}
+inline long double y1l(float x) { return double(y1(double(x))); }
 inline long double jnl(const int n, const float s) { return double(jn(n, double(s))); }
 inline long double ynl(const int n, const float s) { return double(yn(n, double(s))); }
 #endif
 #endif // darwin
 
+#if defined(mingw)
+#ifndef DUMMY_SCALAR_FUNCTIONS
+#define DUMMY_SCALAR_FUNCTIONS
+inline float j0f(float x) { return _j0(x); }
+inline float j1f(float x) { return _j1(x); }
+inline float y0f(float x) { return _y0(x); }
+inline float y1f(float x) { return _y1(x); }
+inline float jnf(const int n, float s) { return _jn(n, s); }
+inline float ynf(const int n, float s) { return _yn(n, s); }
+
+inline double j0(double x) { return _j0(x); }
+inline double j1(double x) { return _j1(x); }
+inline double y0(double x) { return _y0(x); }
+inline double y1(double x) { return _y1(x); }
+inline double jn(const int n, double s) { return _jn(n, s); }
+inline double yn(const int n, double s) { return _yn(n, s); }
+
+inline long double j0l(long double x) { return _j0(x); }
+inline long double j1l(long double x) { return _j1(x); }
+inline long double y0l(long double x) { return _y0(x); }
+inline long double y1l(long double x) { return _y1(x); }
+inline long double jnl(const int n, long double s) { return _jn(n, s); }
+inline long double ynl(const int n, long double s) { return _yn(n, s); }
+#endif
+#endif // mingw
+
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam

src/foam/primitives/ints/int64/int64.H

@@ -74,6 +74,11 @@ Ostream& operator<<(Ostream&, const int64_t);
     Ostream& operator<<(Ostream&, const long);
 #endif
 
+#if defined(mingw)
+    Istream& operator>>(Istream&, off_t&);
+    Ostream& operator<<(Ostream&, const off_t);
+#endif
+
 //- Template specialization for pTraits<int64_t>
 template<>
 class pTraits<int64_t>

src/foam/primitives/ints/int64/int64IO.C

@@ -114,4 +114,18 @@ Foam::Ostream& Foam::operator<<(Ostream& os, const long i)
 }
 #endif
 
+#if defined(mingw)
+Foam::Istream& Foam::operator>>(Istream& is, off_t& i)
+{
+    return operator>>(is, i);
+}
+
+Foam::Ostream& Foam::operator<<(Ostream& os, const off_t i)
+{
+    os << i;
+    return os;
+}
+#endif
+
+
 // ************************************************************************* //

src/foam/primitives/ints/uint/uint.H

@@ -67,7 +67,7 @@ MAXMIN(uint64_t, uint64_t, uint64_t)
 
 // * * * * * * * * * * * * * * * IOstream Operators  * * * * * * * * * * * * //
 
-uint readUint(Istream&);
+unsigned int readUint(Istream&);
 
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

wmake/rules/mingwGcc/c++

@@ -9,14 +9,14 @@ include $(RULES)/c++$(WM_COMPILE_OPTION)
 ptFLAGS     = -DNoRepository -ftemplate-depth-200
 
 GFLAGS     = -DWM_$(WM_PRECISION_OPTION) -DWM_LABEL_SIZE=$(WM_LABEL_SIZE)
-c++FLAGS    = $(GFLAGS) $(c++WARN) $(c++OPT) $(c++DBUG) $(ptFLAGS) $(LIB_HEADER_DIRS) -I$(OPENMPI_DIR)/include -I$(WM_THIRD_PARTY_DIR)/packages/system/include -Dmingw -DBIG_ENDIAN=0 -DLITTLE_ENDIAN=1 -DBYTE_ORDER=BIG_ENDIAN
+c++FLAGS    = $(GFLAGS) $(c++WARN) $(c++OPT) $(c++DBUG) $(ptFLAGS) $(LIB_HEADER_DIRS) -I$(OPENMPI_DIR)/include -I$(WM_THIRD_PARTY_DIR)/packages/system/include -Dmingw -DBIG_ENDIAN=0 -DLITTLE_ENDIAN=1 -DBYTE_ORDER=BIG_ENDIAN -U__STRICT_ANSI__
 
 Ctoo        = $(WM_SCHEDULER) $(CC) $(c++FLAGS) -c $$SOURCE -o $@
 cxxtoo      = $(Ctoo)
 cctoo       = $(Ctoo)
 cpptoo      = $(Ctoo)
 
-LINK_LIBS   = $(c++DBUG) -L$(OPENMPI_DIR)/lib -lmpi -lpthread -lz -L$(WM_THIRD_PARTY_DIR)/packages/system/lib -ldl -lpsapi
+LINK_LIBS   = $(c++DBUG) -L$(OPENMPI_DIR)/lib -lmpi -lpthread -lz -L$(WM_THIRD_PARTY_DIR)/packages/system/lib -ldl -lpsapi -lws2_32
 
 LINKLIBSO   = $(CC) $(c++FLAGS) -shared -Xlinker --add-needed -Xlinker --no-as-needed
 LINKEXE     = $(CC) $(c++FLAGS) -Xlinker --add-needed -Xlinker --no-as-needed $(FOAM_LIBBIN)/libOSspecific.o