MinGW compilation fix

Pdf4QtLib/sources/pdfcms.cpp

@@ -34,8 +34,10 @@
 #define NOMINMAX
 #include <Windows.h>
 #include <Icm.h>
+#if defined(PDF4QT_USE_PRAGMA_LIB)
 #pragma comment(lib, "Mscms")
 #endif
+#endif
 
 #include <unordered_map>
 

Pdf4QtLib/sources/pdffont.cpp

@@ -34,15 +34,18 @@
 #include <QPainterPath>
 #include <QDataStream>
 #include <QTreeWidgetItem>
+
 #if defined(Q_OS_WIN)
 #include "Windows.h"
-
-#pragma comment(lib, "Gdi32")
-#pragma comment(lib, "User32")
 #elif defined(Q_OS_UNIX)
 #include <fontconfig/fontconfig.h>
 #endif
 
+#if defined(PDF4QT_USE_PRAGMA_LIB)
+#pragma comment(lib, "Gdi32")
+#pragma comment(lib, "User32")
+#endif
+
 namespace pdf
 {
 /// Storage class for system fonts

Pdf4QtLib/sources/pdfglobal.h

@@ -15,7 +15,6 @@
 //    You should have received a copy of the GNU Lesser General Public License
 //    along with PDF4QT.  If not, see <https://www.gnu.org/licenses/>.
 
-
 #ifndef PDFGLOBAL_H
 #define PDFGLOBAL_H
 
@@ -32,6 +31,27 @@
 #  define PDF4QTLIBSHARED_EXPORT Q_DECL_IMPORT
 #endif
 
+// Compiler detection
+#if defined(_MSC_VER)
+#define PDF4QT_COMPILER_MSVC 1
+#endif
+
+#if defined(__clang__)
+#define PDF4QT_COMPILER_CLANG 1
+#endif
+
+#if defined(__MINGW32__) || defined(__MINGW64__)
+#define PDF4QT_COMPILER_MINGW 1
+#endif
+
+#if defined(__GNUC__)
+#define PDF4QT_COMPILER_GCC 1
+#endif
+
+#if defined(Q_OS_WIN) && (defined(PDF4QT_COMPILER_MSVC) || defined(PDF4QT_COMPILER_CLANG))
+#define PDF4QT_USE_PRAGMA_LIB 1
+#endif
+
 namespace pdf
 {
 

Pdf4QtLib/sources/pdfsignaturehandler.cpp

@@ -2009,8 +2009,10 @@ void PDFCertificateStore::createDirectoryForDefaultUserCertificatesStore()
 #ifdef Q_OS_WIN
 #include <Windows.h>
 #include <wincrypt.h>
+#if defined(PDF4QT_USE_PRAGMA_LIB)
 #pragma comment(lib, "crypt32.lib")
 #endif
+#endif
 
 void pdf::PDFPublicKeySignatureHandler::addTrustedCertificates(X509_STORE* store) const
 {

Pdf4QtLib/sources/pdfutils.cpp

@@ -32,8 +32,10 @@
 #define SECURITY_WIN32
 #include <Windows.h>
 #include <security.h>
+#if defined(PDF4QT_USE_PRAGMA_LIB)
 #pragma comment(lib, "Secur32.lib")
 #endif
+#endif
 
 #pragma warning(push)
 #pragma warning(disable:5033)

Pdf4QtViewer/pdfprogramcontroller.cpp

@@ -52,7 +52,7 @@
 #include <QToolBar>
 #include <QXmlStreamWriter>
 
-#ifdef Q_OS_WIN
+#if defined(PDF4QT_USE_PRAGMA_LIB)
 #pragma comment(lib, "Shell32")
 #endif
 

Pdf4QtViewer/pdftexttospeech.cpp

@@ -413,6 +413,9 @@ void PDFTextToSpeech::onPlayClicked()
             updatePlay();
             break;
         }
+
+        default:
+            break;
     }
 
     updateUI();

Pdf4QtViewerPlugins/AudioBookPlugin/audiobookcreator.cpp

@@ -19,8 +19,10 @@
 
 #ifdef Q_OS_WIN
 #include <sapi.h>
+#if defined(PDF4QT_USE_PRAGMA_LIB)
 #pragma comment(lib, "ole32")
 #endif
+#endif
 
 namespace pdfplugin
 {

PdfTool/pdftoolaudiobook.cpp

@@ -23,7 +23,9 @@
 
 #include <sapi.h>
 
+#if defined(PDF4QT_USE_PRAGMA_LIB)
 #pragma comment(lib, "ole32")
+#endif
 
 namespace pdftool
 {