Make it possible to disable Qt type pack handlers at build time

usable with either
  qmake DEFINES+=MSGPACK_NO_PACKTYPES
or
  DEFINES += MSGPACK_STATIC MSGPACK_NO_PACKTYPES
  include(path/to/qmsgpack/qmsgpack.pri)

qmsgpack.pri

@@ -7,10 +7,7 @@ SOURCES += \
     $$PWD/src/msgpackcommon.cpp \
     $$PWD/src/private/pack_p.cpp \
     $$PWD/src/private/unpack_p.cpp \
-    $$PWD/src/private/qt_types_p.cpp \
+    $$PWD/src/msgpackstream.cpp
-    $$PWD/src/msgpackstream.cpp \
-    $$PWD/src/stream/time.cpp \
-    $$PWD/src/stream/geometry.cpp
 
 HEADERS += \
     $$PWD/src/msgpack.h \
@@ -19,18 +16,27 @@ HEADERS += \
     $$PWD/src/endianhelper.h \
     $$PWD/src/msgpackcommon.h \
     $$PWD/src/msgpack_export.h \
+    $$PWD/src/msgpackstream.h
+
+!contains(DEFINES, MSGPACK_NO_PACKTYPES) {
+    SOURCES += \
+        $$PWD/src/private/qt_types_p.cpp \
+        $$PWD/src/stream/time.cpp \
+        $$PWD/src/stream/geometry.cpp
+
+    HEADERS += \
         $$PWD/src/private/qt_types_p.h \
-    $$PWD/src/msgpackstream.h \
         $$PWD/src/stream/time.h \
         $$PWD/src/stream/geometry.h
 
-qtHaveModule(gui) {
+    qtHaveModule(gui) {
         QT += gui
-}
+    }
 
-qtHaveModule(location) {
+    qtHaveModule(location) {
         QT += location
 
         SOURCES += $$PWD/src/stream/location.cpp
         HEADERS += $$PWD/src/stream/location.h
+    }
 }

src/msgpack.cpp

@@ -3,13 +3,16 @@
 #include "msgpack.h"
 #include "private/unpack_p.h"
 #include "private/pack_p.h"
-#include "private/qt_types_p.h"
 
 #include <QVector>
 
+#ifndef MSGPACK_NO_PACKTYPES
+#include "private/qt_types_p.h"
+
 #ifdef QT_LOCATION_LIB
 #include <QGeoCoordinate>
 #endif
+#endif // MSGPACK_NO_PACKTYPES
 
 QVariant MsgPack::unpack(const QByteArray &data)
 {
@@ -51,6 +54,7 @@ qint8 MsgPack::msgpackType(int qType)
 
 bool MsgPack::registerType(QMetaType::Type qType, quint8 msgpackType)
 {
+#ifndef MSGPACK_NO_PACKTYPES
     switch (qType) {
 #ifdef QT_GUI_LIB
     case QMetaType::QColor:
@@ -92,6 +96,9 @@ bool MsgPack::registerType(QMetaType::Type qType, quint8 msgpackType)
 #endif // QT_LOCATION_LIB
         break;
     }
+#else
+    Q_UNUSED(msgpackType)
+#endif // MSGPACK_NO_PACKTYPES
 
     qWarning("qmsgpack was built without metatype %d support.", int(qType));
     qWarning("Use MsgPack::registerPacker() and MsgPack::registerUnpacker() to register metatype %d manually.", int(qType));

src/src.pro

@@ -18,12 +18,14 @@ HEADERS_INSTALL = \
     msgpack_export.h \
     msgpackstream.h \
 
-STREAM_HEADERS_INSTALL = \
+!contains(DEFINES, MSGPACK_NO_PACKTYPES) {
+    STREAM_HEADERS_INSTALL = \
         stream/geometry.h \
         stream/time.h
 
-qtHaveModule(location) {
+    qtHaveModule(location) {
         STREAM_HEADERS_INSTALL += stream/location.h
+    }
 }
 
 unix {

tests/tests.pro

@@ -3,6 +3,10 @@ TEMPLATE = subdirs
 SUBDIRS += \
     pack \
     unpack \
-    mixed \
+    mixed
+
+!contains(DEFINES, MSGPACK_NO_PACKTYPES) {
+    SUBDIRS += \
         stream \
         qttypes
+}