diff --git a/build.sh b/build.sh
index 1caeccba9..79555a24f 100755
--- a/build.sh
+++ b/build.sh
@@ -27,6 +27,13 @@ IS_LINUX="no"
 
 HAVE_QTBINDINGS=1
 HAVE_QT_UITOOLS=1
+HAVE_QT_NETWORK=1
+HAVE_QT_SQL=1
+HAVE_QT_SVG=1
+HAVE_QT_PRINTSUPPORT=1
+HAVE_QT_MULTIMEDIA=1
+HAVE_QT_DESIGNER=1
+HAVE_QT_XML=1
 HAVE_64BIT_COORD=0
 HAVE_QT=1
 HAVE_QT5="" # not set
@@ -96,6 +103,27 @@ while [ "$*" != "" ]; do
   -without-qt-uitools)
     HAVE_QT_UITOOLS=0
     ;;
+  -without-qt-network)
+    HAVE_QT_NETWORK=0
+    ;;
+  -without-qt-sql)
+    HAVE_QT_SQL=0
+    ;;
+  -without-qt-svg)
+    HAVE_QT_SVG=0
+    ;;
+  -without-qt-printsupport)
+    HAVE_QT_PRINTSUPPORT=0
+    ;;
+  -without-qt-multimedia)
+    HAVE_QT_MULTIMEDIA=0
+    ;;
+  -without-qt-designer)
+    HAVE_QT_DESIGNER=0
+    ;;
+  -without-qt-xml)
+    HAVE_QT_XML=0
+    ;;
   -with-64bit-coord)
     HAVE_64BIT_COORD=1
     ;;
@@ -610,6 +638,13 @@ qmake_options=(
   HAVE_PYTHON="$HAVE_PYTHON"
   HAVE_QTBINDINGS="$HAVE_QTBINDINGS"
   HAVE_QT_UITOOLS="$HAVE_QT_UITOOLS"
+  HAVE_QT_NETWORK="$HAVE_QT_NETWORK"
+  HAVE_QT_SQL="$HAVE_QT_SQL"
+  HAVE_QT_SVG="$HAVE_QT_SVG"
+  HAVE_QT_PRINTSUPPORT="$HAVE_QT_PRINTSUPPORT"
+  HAVE_QT_MULTIMEDIA="$HAVE_QT_MULTIMEDIA"
+  HAVE_QT_DESIGNER="$HAVE_QT_DESIGNER"
+  HAVE_QT_XML="$HAVE_QT_XML"
   HAVE_64BIT_COORD="$HAVE_64BIT_COORD"
   HAVE_QT="$HAVE_QT"
   HAVE_QT5="$HAVE_QT5"
diff --git a/src/gsiqt/qt4/qt4.pro b/src/gsiqt/qt4/qt4.pro
index 4b511b874..5aeee7dfd 100644
--- a/src/gsiqt/qt4/qt4.pro
+++ b/src/gsiqt/qt4/qt4.pro
@@ -5,17 +5,29 @@ TEMPLATE = subdirs
 
 SUBDIRS = \
   QtCore \
-  QtGui \
-  QtXml \
-  QtSql \
-  QtNetwork \
-  QtDesigner 
+  QtGui
 
 QtGui.depends += QtCore
-QtNetwork.depends += QtCore
-QtSql.depends += QtCore
-QtDesigner.depends += QtCore
-QtXml.depends += QtCore
+
+equals(HAVE_QT_NETWORK, "1") {
+  SUBDIRS += QtNetwork
+  QtNetwork.depends += QtCore
+}
+
+equals(HAVE_QT_SQL, "1") {
+  SUBDIRS += QtSql
+  QtSql.depends += QtCore
+}
+
+equals(HAVE_QT_DESIGNER, "1") {
+  SUBDIRS += QtDesigner
+  QtDesigner.depends += QtCore
+}
+
+equals(HAVE_QT_XML, "1") {
+  SUBDIRS += QtXml
+  QtXml.depends += QtCore
+}
 
 equals(HAVE_QT_UITOOLS, "1") {
   SUBDIRS += QtUiTools
diff --git a/src/gsiqt/qt5/qt5.pro b/src/gsiqt/qt5/qt5.pro
index 5e4fd0074..710001c57 100644
--- a/src/gsiqt/qt5/qt5.pro
+++ b/src/gsiqt/qt5/qt5.pro
@@ -6,26 +6,46 @@ TEMPLATE = subdirs
 SUBDIRS = \
   QtCore \
   QtGui \
-  QtNetwork \
-  QtSql \
-  QtWidgets \
-  QtDesigner \
-  QtMultimedia \
-  QtPrintSupport \
-  QtSvg \
-  QtXmlPatterns \
-  QtXml 
+  QtWidgets
 
 QtGui.depends += QtCore
-QtNetwork.depends += QtCore
-QtSql.depends += QtCore
 QtWidgets.depends += QtGui
-QtDesigner.depends += QtCore
-QtMultimedia.depends += QtCore QtWidgets QtNetwork
-QtPrintSupport.depends += QtCore QtWidgets
-QtSvg.depends += QtCore QtWidgets
-QtXmlPatterns.depends += QtCore
-QtXml.depends += QtCore
+
+equals(HAVE_QT_NETWORK, "1") {
+  SUBDIRS += QtNetwork
+  QtNetwork.depends += QtCore
+}
+
+equals(HAVE_QT_SQL, "1") {
+  SUBDIRS += QtSql
+  QtSql.depends += QtCore
+}
+
+equals(HAVE_QT_SVG, "1") {
+  SUBDIRS += QtSvg
+  QtSvg.depends += QtCore QtWidgets
+}
+
+equals(HAVE_QT_PRINTSUPPORT, "1") {
+  SUBDIRS += QtPrintSupport
+  QtPrintSupport.depends += QtCore QtWidgets
+}
+
+equals(HAVE_QT_MULTIMEDIA, "1") {
+  SUBDIRS += QtMultimedia
+  QtMultimedia.depends += QtCore QtWidgets QtNetwork
+}
+
+equals(HAVE_QT_DESIGNER, "1") {
+  SUBDIRS += QtDesigner
+  QtDesigner.depends += QtCore
+}
+
+equals(HAVE_QT_XML, "1") {
+  SUBDIRS += QtXml QtXmlPatterns
+  QtXmlPatterns.depends += QtCore
+  QtXml.depends += QtCore
+}
 
 equals(HAVE_QT_UITOOLS, "1") {
   SUBDIRS += QtUiTools
diff --git a/src/gsiqt/qtbasic/gsiQtDesignerExternals.h b/src/gsiqt/qtbasic/gsiQtDesignerExternals.h
index ff9e70738..e969f0fea 100644
--- a/src/gsiqt/qtbasic/gsiQtDesignerExternals.h
+++ b/src/gsiqt/qtbasic/gsiQtDesignerExternals.h
@@ -20,7 +20,9 @@
 
 */
 
-#if QT_VERSION >= 0x050000
+#if !defined(HAVE_QT_DESIGNER)
+#  define FORCE_LINK_GSI_QTDESIGNER
+#elif QT_VERSION >= 0x050000
 #  include "../qt5/QtDesigner/gsiQtExternals.h"
 #else
 #  include "../qt4/QtDesigner/gsiQtExternals.h"
diff --git a/src/gsiqt/qtbasic/gsiQtMultimediaExternals.h b/src/gsiqt/qtbasic/gsiQtMultimediaExternals.h
index 19dc5bf3b..92f3efc62 100644
--- a/src/gsiqt/qtbasic/gsiQtMultimediaExternals.h
+++ b/src/gsiqt/qtbasic/gsiQtMultimediaExternals.h
@@ -20,7 +20,9 @@
 
 */
 
-#if QT_VERSION >= 0x050000
+#if !defined(HAVE_QT_MULTIMEDIA)
+#  define FORCE_LINK_GSI_QTMULTIMEDIA
+#elif QT_VERSION >= 0x050000
 #  include "../qt5/QtMultimedia/gsiQtExternals.h"
 #else
 //  no present in Qt4
diff --git a/src/gsiqt/qtbasic/gsiQtNetworkExternals.h b/src/gsiqt/qtbasic/gsiQtNetworkExternals.h
index 98cd86856..d7032d221 100644
--- a/src/gsiqt/qtbasic/gsiQtNetworkExternals.h
+++ b/src/gsiqt/qtbasic/gsiQtNetworkExternals.h
@@ -20,7 +20,9 @@
 
 */
 
-#if QT_VERSION >= 0x050000
+#if !defined(HAVE_QT_NETWORK)
+#  define FORCE_LINK_GSI_QTNETWORK
+#elif QT_VERSION >= 0x050000
 #  include "../qt5/QtNetwork/gsiQtExternals.h"
 #else
 #  include "../qt4/QtNetwork/gsiQtExternals.h"
diff --git a/src/gsiqt/qtbasic/gsiQtPrintSupportExternals.h b/src/gsiqt/qtbasic/gsiQtPrintSupportExternals.h
index 267b31b70..251a3dc79 100644
--- a/src/gsiqt/qtbasic/gsiQtPrintSupportExternals.h
+++ b/src/gsiqt/qtbasic/gsiQtPrintSupportExternals.h
@@ -20,7 +20,9 @@
 
 */
 
-#if QT_VERSION >= 0x050000
+#if !defined(HAVE_QT_PRINTSUPPORT)
+#  define FORCE_LINK_GSI_QTPRINTSUPPORT
+#elif QT_VERSION >= 0x050000
 #  include "../qt5/QtPrintSupport/gsiQtExternals.h"
 #else
 //  no present in Qt4
diff --git a/src/gsiqt/qtbasic/gsiQtSqlExternals.h b/src/gsiqt/qtbasic/gsiQtSqlExternals.h
index 0cb0a4740..b595853eb 100644
--- a/src/gsiqt/qtbasic/gsiQtSqlExternals.h
+++ b/src/gsiqt/qtbasic/gsiQtSqlExternals.h
@@ -20,7 +20,9 @@
 
 */
 
-#if QT_VERSION >= 0x050000
+#if !defined(HAVE_QT_SQL)
+#  define FORCE_LINK_GSI_QTSQL
+#elif QT_VERSION >= 0x050000
 #  include "../qt5/QtSql/gsiQtExternals.h"
 #else
 #  include "../qt4/QtSql/gsiQtExternals.h"
diff --git a/src/gsiqt/qtbasic/gsiQtSvgExternals.h b/src/gsiqt/qtbasic/gsiQtSvgExternals.h
index ccbacac80..fd6468d92 100644
--- a/src/gsiqt/qtbasic/gsiQtSvgExternals.h
+++ b/src/gsiqt/qtbasic/gsiQtSvgExternals.h
@@ -20,7 +20,9 @@
 
 */
 
-#if QT_VERSION >= 0x050000
+#if !defined(HAVE_QT_SVG)
+#  define FORCE_LINK_GSI_QTSVG
+#elif QT_VERSION >= 0x050000
 #  include "../qt5/QtSvg/gsiQtExternals.h"
 #else
 //  no present in Qt4
diff --git a/src/gsiqt/qtbasic/gsiQtXmlExternals.h b/src/gsiqt/qtbasic/gsiQtXmlExternals.h
index ba1da7d32..b4713bd5c 100644
--- a/src/gsiqt/qtbasic/gsiQtXmlExternals.h
+++ b/src/gsiqt/qtbasic/gsiQtXmlExternals.h
@@ -20,7 +20,9 @@
 
 */
 
-#if QT_VERSION >= 0x050000
+#if !defined(HAVE_QT_XML)
+#  define FORCE_LINK_GSI_QTXML
+#elif QT_VERSION >= 0x050000
 #  include "../qt5/QtXml/gsiQtExternals.h"
 #else
 #  include "../qt4/QtXml/gsiQtExternals.h"
diff --git a/src/gsiqt/qtbasic/gsiQtXmlPatternsExternals.h b/src/gsiqt/qtbasic/gsiQtXmlPatternsExternals.h
index ce56bc674..e5c48f1c0 100644
--- a/src/gsiqt/qtbasic/gsiQtXmlPatternsExternals.h
+++ b/src/gsiqt/qtbasic/gsiQtXmlPatternsExternals.h
@@ -20,7 +20,9 @@
 
 */
 
-#if QT_VERSION >= 0x050000
+#if !defined(HAVE_QT_XML)
+#  define FORCE_LINK_GSI_QTXMLPATTERNS
+#elif QT_VERSION >= 0x050000
 #  include "../qt5/QtXmlPatterns/gsiQtExternals.h"
 #else
 //  Not present in Qt4
diff --git a/src/gsiqt/qtbasic/qtbasic.pro b/src/gsiqt/qtbasic/qtbasic.pro
index 8f08982ac..cf9d23b78 100644
--- a/src/gsiqt/qtbasic/qtbasic.pro
+++ b/src/gsiqt/qtbasic/qtbasic.pro
@@ -17,5 +17,19 @@ SOURCES += \
   gsiQtHelper.cc
 
 HEADERS += \
+  gsiDeclQtAllTypeTraits.h \
   gsiQt.h \
-  gsiQtBasicCommon.h \
+  gsiQtBasicCommon.h \ \
+  gsiQtCoreExternals.h \
+  gsiQtDesignerExternals.h \
+  gsiQtGuiExternals.h \
+  gsiQtHelper.h \
+  gsiQtMultimediaExternals.h \
+  gsiQtNetworkExternals.h \
+  gsiQtPrintSupportExternals.h \
+  gsiQtSqlExternals.h \
+  gsiQtSvgExternals.h \
+  gsiQtUiToolsExternals.h \
+  gsiQtWidgetsExternals.h \
+  gsiQtXmlExternals.h \
+  gsiQtXmlPatternsExternals.h
diff --git a/src/klayout.pri b/src/klayout.pri
index 28ec64ef7..312e0c6a3 100644
--- a/src/klayout.pri
+++ b/src/klayout.pri
@@ -169,27 +169,81 @@ equals(HAVE_QT, "0") {
 } else {
 
   DEFINES += HAVE_QT
-  QT += core network xml sql
+  QT += core xml network
+
+  equals(HAVE_QTBINDINGS, "1") {
+    # sql isn't needed by the base application
+    !equals(HAVE_QT_SQL, "0") {
+      QT += sql
+    }
+  }
 
   equals(HAVE_QT5, "1") {
-    QT += designer printsupport widgets 
+
+    QT += widgets gui printsupport
+
     equals(HAVE_QTBINDINGS, "1") {
-      QT += multimedia multimediawidgets xmlpatterns svg gui
-    }
-    equals(HAVE_QT_UITOOLS, "1") {
-      QT += uitools
+      !equals(HAVE_QT_DESIGNER, "0") {
+        # designer isn't needed by the base application
+        QT += designer
+      }
+      !equals(HAVE_QT_MULTIMEDIA, "0") {
+        # multimedia isn't needed by the base application
+        QT += multimedia multimediawidgets
+      }
+      !equals(HAVE_QT_XML, "0") {
+        # xmlpatterns isn't needed by the base application
+        QT += xmlpatterns
+      }
+      !equals(HAVE_QT_SVG, "0") {
+        # svg isn't needed by the base application
+        QT += svg
+      }
+      !equals(HAVE_QT_UITOOLS, "0") {
+        # uitools isn't needed by the base application
+        QT += uitools
+      }
     }
+
   } else {
-    CONFIG += designer
-    equals(HAVE_QT_UITOOLS, "1") {
-      CONFIG += uitools
+
+    equals(HAVE_QTBINDINGS, "1") {
+      !equals(HAVE_QT_DESIGNER, "0") {
+        # designer isn't needed by the base application
+        CONFIG += designer
+      }
+      !equals(HAVE_QT_UITOOLS, "0") {
+        # uitools isn't needed by the base application
+        CONFIG += uitools
+      }
     }
+
   }
 
-  equals(HAVE_QT_UITOOLS, "1") {
+  !equals(HAVE_QT_UITOOLS, "0") {
     DEFINES += HAVE_QT_UITOOLS
   }
-
+  !equals(HAVE_QT_NETWORK, "0") {
+    DEFINES += HAVE_QT_NETWORK
+  }
+  !equals(HAVE_QT_SQL, "0") {
+    DEFINES += HAVE_QT_SQL
+  }
+  !equals(HAVE_QT_SVG, "0") {
+    DEFINES += HAVE_QT_SVG
+  }
+  !equals(HAVE_QT_PRINTSUPPORT, "0") {
+    DEFINES += HAVE_QT_PRINTSUPPORT
+  }
+  !equals(HAVE_QT_MULTIMEDIA, "0") {
+    DEFINES += HAVE_QT_MULTIMEDIA
+  }
+  !equals(HAVE_QT_DESIGNER, "0") {
+    DEFINES += HAVE_QT_DESIGNER
+  }
+  !equals(HAVE_QT_XML, "0") {
+    DEFINES += HAVE_QT_XML
+  }
 }
 
 VERSION_STRING = $$KLAYOUT_VERSION
diff --git a/src/klayout_main/klayout_main/klayout_main.pro b/src/klayout_main/klayout_main/klayout_main.pro
index acb5aeb23..31ab7eb22 100644
--- a/src/klayout_main/klayout_main/klayout_main.pro
+++ b/src/klayout_main/klayout_main/klayout_main.pro
@@ -26,11 +26,42 @@ INCLUDEPATH += $$QTBASIC_INC
 DEPENDPATH += $$QTBASIC_INC
 
 equals(HAVE_QTBINDINGS, "1") {
-  LIBS += -lklayout_qtbasic -lklayout_QtGui -lklayout_QtXml -lklayout_QtNetwork -lklayout_QtSql -lklayout_QtDesigner
-  equals(HAVE_QT_UITOOLS, "1") {
+
+  LIBS += -lklayout_qtbasic -lklayout_QtGui
+
+  !equals(HAVE_QT_XML, "0") {
+    LIBS += -lklayout_QtXml
+  }
+  !equals(HAVE_QT_NETWORK, "0") {
+    LIBS += -lklayout_QtNetwork
+  }
+  !equals(HAVE_QT_SQL, "0") {
+    LIBS += -lklayout_QtSql
+  }
+  !equals(HAVE_QT_DESIGNER, "0") {
+    LIBS += -lklayout_QtDesigner
+  }
+  !equals(HAVE_QT_UITOOLS, "0") {
     LIBS += -lklayout_QtUiTools
   }
+
   equals(HAVE_QT5, "1") {
-    LIBS += -lklayout_QtMultimedia -lklayout_QtPrintSupport -lklayout_QtSvg -lklayout_QtWidgets -lklayout_QtXmlPatterns
+
+    LIBS += -lklayout_QtWidgets
+
+    !equals(HAVE_QT_MULTIMEDIA, "0") {
+      LIBS += -lklayout_QtMultimedia
+    }
+    !equals(HAVE_QT_PRINTSUPPORT, "0") {
+      LIBS += -lklayout_QtPrintSupport
+    }
+    !equals(HAVE_QT_SVG, "0") {
+      LIBS += -lklayout_QtSvg
+    }
+    !equals(HAVE_QT_XML, "0") {
+      LIBS += -lklayout_QtXmlPatterns
+    }
+
   }
+
 }
diff --git a/src/lay/lay/gsiDeclLayHelpDialog.cc b/src/lay/lay/gsiDeclLayHelpDialog.cc
index 4eea9886c..1cb6fb7f1 100644
--- a/src/lay/lay/gsiDeclLayHelpDialog.cc
+++ b/src/lay/lay/gsiDeclLayHelpDialog.cc
@@ -97,7 +97,7 @@ Class<lay::HelpDialog> decl_HelpDialog (QT_EXTERNAL_BASE (QDialog) "lay", "HelpD
 LAYBASIC_PUBLIC Class<lay::BrowserSource> &laybasicdecl_BrowserSource ();
 
 Class<lay::HelpSource> decl_HelpSource (laybasicdecl_BrowserSource (), "lay", "HelpSource",
-#if defined(HAVE_QTBINDINGS)
+#if defined(HAVE_QTBINDINGS) && defined(HAVE_QT_XML)
   gsi::method ("get_dom", &lay::HelpSource::get_dom, "@brief For internal use") + 
 #endif
   gsi::method ("urls", &lay::HelpSource::urls, "@brief Reserved for internal use") +
diff --git a/src/lay/lay/lay.pro b/src/lay/lay/lay.pro
index f2ba59502..8a07f7da3 100644
--- a/src/lay/lay/lay.pro
+++ b/src/lay/lay/lay.pro
@@ -203,7 +203,10 @@ INCLUDEPATH += $$QTBASIC_INC
 DEPENDPATH += $$QTBASIC_INC
 
 equals(HAVE_QTBINDINGS, "1") {
-  LIBS += -lklayout_qtbasic -lklayout_QtGui -lklayout_QtXml -lklayout_QtCore
+  LIBS += -lklayout_qtbasic -lklayout_QtGui -lklayout_QtCore
+  !equals(HAVE_QT_XML, "0") {
+    LIBS += -lklayout_QtXml
+  }
   equals(HAVE_QT5, "1") {
     LIBS += -lklayout_QtWidgets
   }
diff --git a/src/pymod/QtUiTools/QtUiTools.pro b/src/pymod/QtUiTools/QtUiTools.pro
index c378c58ea..2c1ed0966 100644
--- a/src/pymod/QtUiTools/QtUiTools.pro
+++ b/src/pymod/QtUiTools/QtUiTools.pro
@@ -8,9 +8,6 @@ SOURCES = \
 
 HEADERS += \
 
-equals(HAVE_QT_UITOOLS, "1") {
-  LIBS += -lklayout_QtUiTools 
-}
-
+LIBS += -lklayout_QtUiTools
 LIBS += -lklayout_QtCore
 
diff --git a/src/pymod/QtUiTools/QtUiToolsMain.cc b/src/pymod/QtUiTools/QtUiToolsMain.cc
index d70d419d4..7038f2bfa 100644
--- a/src/pymod/QtUiTools/QtUiToolsMain.cc
+++ b/src/pymod/QtUiTools/QtUiToolsMain.cc
@@ -26,10 +26,8 @@
 #include "../../gsiqt/qtbasic/gsiQtCoreExternals.h"
 FORCE_LINK_GSI_QTCORE
 
-#if defined(HAVE_QT_UITOOLS)
 #  include "../../gsiqt/qtbasic/gsiQtUiToolsExternals.h"
 FORCE_LINK_GSI_QTUITOOLS
-#endif
 
 DEFINE_PYMOD(QtUiTools, "QtUiTools", "KLayout/Qt module 'QtUiTools'")
 
diff --git a/src/pymod/pymod.pro b/src/pymod/pymod.pro
index 71f8ddaaa..1b1998702 100644
--- a/src/pymod/pymod.pro
+++ b/src/pymod/pymod.pro
@@ -14,34 +14,49 @@ SUBDIRS = \
 
   equals(HAVE_QTBINDINGS, "1") {
 
+    SUBDIRS += \
+      QtCore \
+      QtGui
+
     equals(HAVE_QT5, "1") {
 
-      SUBDIRS += \
-        QtCore \
-        QtGui \
-        QtNetwork \
-        QtSql \
-        QtWidgets \
-        QtDesigner \
-        QtMultimedia \
-        QtPrintSupport \
-        QtSvg \
-        QtXmlPatterns \
-        QtXml
+      SUBDIRS += QtWidgets
 
-    } else {
+      !equals(HAVE_QT_MULTIMEDIA, "0") {
+        SUBDIRS += QtMultimedia
+      }
 
-      SUBDIRS += \
-        QtCore \
-        QtGui \
-        QtXml \
-        QtSql \
-        QtNetwork \
-        QtDesigner
+      !equals(HAVE_QT_PRINTSUPPORT, "0") {
+        SUBDIRS += QtPrintSupport
+      }
+
+      !equals(HAVE_QT_SVG, "0") {
+        SUBDIRS += QtSvg
+      }
+
+      !equals(HAVE_QT_XML, "0") {
+        SUBDIRS += QtXmlPatterns
+      }
 
     }
 
-    equals(HAVE_QT_UITOOLS, "1") {
+    !equals(HAVE_QT_XML, "0") {
+      SUBDIRS += QtXml
+    }
+
+    !equals(HAVE_QT_SQL, "0") {
+      SUBDIRS += QtSql
+    }
+
+    !equals(HAVE_QT_NETWORK, "0") {
+      SUBDIRS += QtNetwork
+    }
+
+    !equals(HAVE_QT_DESIGNER, "0") {
+      SUBDIRS += QtDesigner
+    }
+
+    !equals(HAVE_QT_UITOOLS, "0") {
       SUBDIRS += QtUiTools
     }
 
diff --git a/src/pymod/unit_tests/pymod_tests.cc b/src/pymod/unit_tests/pymod_tests.cc
index 9812fa666..2e9d1d590 100644
--- a/src/pymod/unit_tests/pymod_tests.cc
+++ b/src/pymod/unit_tests/pymod_tests.cc
@@ -94,24 +94,37 @@ PYMODTEST (import_lay, "import_lay.py")
 
 PYMODTEST (import_QtCore, "import_QtCore.py")
 PYMODTEST (import_QtGui, "import_QtGui.py")
+#if defined(HAVE_QT_XML)
 PYMODTEST (import_QtXml, "import_QtXml.py")
+#endif
+#if defined(HAVE_QT_SQL)
 PYMODTEST (import_QtSql, "import_QtSql.py")
+#endif
+#if defined(HAVE_QT_NETWORK)
 PYMODTEST (import_QtNetwork, "import_QtNetwork.py")
+#endif
+#if defined(HAVE_QT_DESIGNER)
 PYMODTEST (import_QtDesigner, "import_QtDesigner.py")
-
+#endif
 #if defined(HAVE_QT_UITOOLS)
-
 PYMODTEST (import_QtUiTools, "import_QtUiTools.py")
-
 #endif
 
 #if QT_VERSION >= 0x50000
 
 PYMODTEST (import_QtWidgets, "import_QtWidgets.py")
+#if defined(HAVE_QT_MULTIMEDIA)
 PYMODTEST (import_QtMultimedia, "import_QtMultimedia.py")
+#endif
+#if defined(HAVE_QT_PRINTSUPPORT)
 PYMODTEST (import_QtPrintSupport, "import_QtPrintSupport.py")
+#endif
+#if defined(HAVE_QT_SVG)
 PYMODTEST (import_QtSvg, "import_QtSvg.py")
+#endif
+#if defined(HAVE_QT_XML)
 PYMODTEST (import_QtXmlPatterns, "import_QtXmlPatterns.py")
+#endif
 
 #endif
 
diff --git a/src/unit_tests/unit_tests.pro b/src/unit_tests/unit_tests.pro
index a5eb77c46..1676e614a 100644
--- a/src/unit_tests/unit_tests.pro
+++ b/src/unit_tests/unit_tests.pro
@@ -34,7 +34,9 @@ LIBS += -lklayout_gsi_test
   DEPENDPATH += $$QTBASIC_INC
 
   equals(HAVE_QTBINDINGS, "1") {
-    LIBS += -lklayout_QtXml
+    !equals(HAVE_QT_XML, "0") {
+      LIBS += -lklayout_QtXml
+    }
     equals(HAVE_QT5, "1") {
       LIBS += -lklayout_QtWidgets
     }