Fix compilation on MSVC 2019

4 files changed, 8 insertions, 6 deletions

diff --git a/src/client/QXmppDiscoveryManager.h b/src/client/QXmppDiscoveryManager.h
index 10744a0d..d45e63a4 100644
--- a/src/client/QXmppDiscoveryManager.h
+++ b/src/client/QXmppDiscoveryManager.h
@@ -15,7 +15,7 @@ class QXmppTask;
 class QXmppDataForm;
 class QXmppDiscoveryIq;
 class QXmppDiscoveryManagerPrivate;
-class QXmppError;
+struct QXmppError;
 
 /// \brief The QXmppDiscoveryManager class makes it possible to discover information
 /// about other entities as defined by \xep{0030}: Service Discovery.
diff --git a/src/client/QXmppEntityTimeManager.h b/src/client/QXmppEntityTimeManager.h
index 3b090feb..87219122 100644
--- a/src/client/QXmppEntityTimeManager.h
+++ b/src/client/QXmppEntityTimeManager.h
@@ -13,7 +13,7 @@
 template<class T>
 class QXmppTask;
 class QXmppEntityTimeIq;
-class QXmppError;
+struct QXmppError;
 
 ///
 /// \brief The QXmppEntityTimeManager class provided the functionality to get
diff --git a/src/client/QXmppFileEncryption.cpp b/src/client/QXmppFileEncryption.cpp
index ba78821e..e767769a 100644
--- a/src/client/QXmppFileEncryption.cpp
+++ b/src/client/QXmppFileEncryption.cpp
@@ -7,6 +7,8 @@
 #include <QByteArray>
 #include <QtCrypto>
 
+#undef min
+
 using namespace QCA;
 
 constexpr std::size_t AES128_BLOCK_SIZE = 128 / 8;
diff --git a/src/client/QXmppFileEncryption.h b/src/client/QXmppFileEncryption.h
index 5bd52c7e..e50bf83c 100644
--- a/src/client/QXmppFileEncryption.h
+++ b/src/client/QXmppFileEncryption.h
@@ -23,9 +23,9 @@ enum Direction {
     Decode,
 };
 
-QByteArray process(const QByteArray &data, Cipher cipherConfig, Direction direction, const QByteArray &key, const QByteArray &iv);
-QByteArray generateKey(Cipher cipher);
-QByteArray generateInitializationVector(Cipher);
+QXMPP_EXPORT QByteArray process(const QByteArray &data, Cipher cipherConfig, Direction direction, const QByteArray &key, const QByteArray &iv);
+QXMPP_EXPORT QByteArray generateKey(Cipher cipher);
+QXMPP_EXPORT QByteArray generateInitializationVector(Cipher);
 
 // export for tests
 class QXMPP_EXPORT EncryptionDevice : public QIODevice
@@ -50,7 +50,7 @@ private:
     std::unique_ptr<QCA::Cipher> m_cipher;
 };
 
-class DecryptionDevice : public QIODevice
+class QXMPP_EXPORT DecryptionDevice : public QIODevice
 {
 public:
     DecryptionDevice(std::unique_ptr<QIODevice> output, Cipher config, const QByteArray &key, const QByteArray &iv);