diff --git a/importer/fileutils.cpp b/importer/fileutils.cpp
--- a/importer/fileutils.cpp
+++ b/importer/fileutils.cpp
@@ -150,7 +150,12 @@
 
     QByteArray name = QFile::encodeName(baseDir + '/' + prefix + "XXXXXX");
 
+#ifdef WIN32
+    if (!_mkdir(tmpnam(name.data()))) {
+#else
+
     if (!mkdtemp(name.data())) {
+#endif
         // Failure
         *errorMessage = QString::fromLocal8Bit(::strerror(errno));
         return QString();
diff --git a/lib/documentview/abstractimageview.h b/lib/documentview/abstractimageview.h
--- a/lib/documentview/abstractimageview.h
+++ b/lib/documentview/abstractimageview.h
@@ -36,7 +36,7 @@
 /**
  *
  */
-class AbstractImageView : public QGraphicsWidget
+class GWENVIEWLIB_EXPORT AbstractImageView : public QGraphicsWidget
 {
     Q_OBJECT
 public:
diff --git a/lib/mpris2/mpris2service.cpp b/lib/mpris2/mpris2service.cpp
--- a/lib/mpris2/mpris2service.cpp
+++ b/lib/mpris2/mpris2service.cpp
@@ -27,7 +27,11 @@
 // Qt
 #include <QDBusConnection>
 // std
+#ifdef WIN32
+#include <process.h>
+#else
 #include <unistd.h>
+#endif
 
 namespace Gwenview
 {
@@ -80,7 +84,12 @@
 
         // Perhaps not the first instance? Try again with another name, as specified by MPRIS2 spec:
         if (!serviceRegistered) {
-            mMpris2ServiceName = mMpris2ServiceName + QLatin1String(".instance") + QString::number(getpid());
+#ifdef WIN32
+            const int pid = _getpid();
+#else
+            const int pid = getpid();
+#endif
+            mMpris2ServiceName = mMpris2ServiceName + QLatin1String(".instance") + QString::number(pid);
             serviceRegistered = QDBusConnection::sessionBus().registerService(mMpris2ServiceName);
         }
         if (!serviceRegistered) {
diff --git a/lib/semanticinfo/abstractsemanticinfobackend.h b/lib/semanticinfo/abstractsemanticinfobackend.h
--- a/lib/semanticinfo/abstractsemanticinfobackend.h
+++ b/lib/semanticinfo/abstractsemanticinfobackend.h
@@ -68,7 +68,7 @@
 /**
  * An abstract class, used by SemanticInfoDirModel to store and retrieve metadata.
  */
-class AbstractSemanticInfoBackEnd : public QObject
+class GWENVIEWLIB_EXPORT AbstractSemanticInfoBackEnd : public QObject
 {
     Q_OBJECT
 public:
diff --git a/lib/slideshow.cpp b/lib/slideshow.cpp
--- a/lib/slideshow.cpp
+++ b/lib/slideshow.cpp
@@ -69,7 +69,11 @@
 
     int operator()(int n)
     {
+#ifdef WIN32
+        return rand() % n;
+#else
         return rand_r(&mSeed) % n;
+#endif
     }
 
 private:
diff --git a/lib/thumbnailprovider/thumbnailprovider.cpp b/lib/thumbnailprovider/thumbnailprovider.cpp
--- a/lib/thumbnailprovider/thumbnailprovider.cpp
+++ b/lib/thumbnailprovider/thumbnailprovider.cpp
@@ -25,7 +25,9 @@
 
 #include <sys/types.h>
 #include <sys/stat.h>
+#ifndef WIN32
 #include <unistd.h>
+#endif
 
 // Qt
 #include <QDir>
diff --git a/tests/auto/importertest.cpp b/tests/auto/importertest.cpp
--- a/tests/auto/importertest.cpp
+++ b/tests/auto/importertest.cpp
@@ -237,7 +237,9 @@
 void ImporterTest::testReadOnlyDestination()
 {
     QUrl destUrl = QUrl::fromLocalFile(mTempDir->path() + "/foo");
+#ifndef WIN32
     chmod(QFile::encodeName(mTempDir->path()), 0555);
+#endif
 
     Importer importer(nullptr);
     QSignalSpy errorSpy(&importer, SIGNAL(error(QString)));
diff --git a/tests/auto/timeutilstest.cpp b/tests/auto/timeutilstest.cpp
--- a/tests/auto/timeutilstest.cpp
+++ b/tests/auto/timeutilstest.cpp
@@ -21,7 +21,11 @@
 #include "timeutilstest.h"
 
 // libc
+#ifdef WIN32
+#include <sys/utime.h>
+#else
 #include <utime.h>
+#endif
 
 // KDE
 #include <KFileItem>
@@ -39,7 +43,11 @@
 
 static void touchFile(const QString& path)
 {
+#ifdef WIN32
+    _utime(QFile::encodeName(path).data(), 0);
+#else
     utime(QFile::encodeName(path).data(), 0);
+#endif
 }
 
 #define NEW_ROW(fileName, dateTime) QTest::newRow(fileName) << fileName << dateTime