diff --git a/acinclude.m4.in b/acinclude.m4.in
index a4cc24e..196d38a 100644
--- a/acinclude.m4.in
+++ b/acinclude.m4.in
@@ -1149,10 +1149,17 @@ EOF
 fi
 
 if test "$kde_qtver" = "3"; then
+if $PKG_CONFIG --exists qt-mt ; then
 cat >> conftest.$ac_ext <<EOF
 #include <qglobal.h>
 #include <qapplication.h>
 EOF
+else
+cat >> conftest.$ac_ext <<EOF
+#include <tqglobal.h>
+#include <tqapplication.h>
+EOF
+fi
 fi
 
 if test "$kde_qtver" = "2"; then
@@ -1172,11 +1179,19 @@ fi
 fi
 
 if test "$kde_qtver" = "3"; then
+if $PKG_CONFIG --exists qt-mt ; then
 cat >> conftest.$ac_ext <<EOF
 #include <qcursor.h>
 #include <qstylefactory.h>
 #include <private/qucomextra_p.h>
 EOF
+else
+cat >> conftest.$ac_ext <<EOF
+#include <tqcursor.h>
+#include <tqstylefactory.h>
+#include <tqucomextra_p.h>
+EOF
+fi
 fi
 
 if test "$kde_qtver" = "4"; then
@@ -1206,10 +1221,17 @@ EOF
 fi
 fi
 if test "$kde_qtver" = "3"; then
+if $PKG_CONFIG --exists qt-mt ; then
 cat >> conftest.$ac_ext <<EOF
     (void)QStyleFactory::create(QString::null);
     QCursor c(Qt::WhatsThisCursor);
 EOF
+else
+cat >> conftest.$ac_ext <<EOF
+    (void)TQStyleFactory::create(TQString::null);
+    TQCursor c(TQt::WhatsThisCursor);
+EOF
+fi
 fi
 if test "$kde_qtver" = "4"; then
 cat >> conftest.$ac_ext <<EOF
@@ -1356,6 +1378,10 @@ if test $kde_qtver = 3; then
   if test "$PKG_CONFIG" != "no" ; then
     if $PKG_CONFIG --exists qt-mt ; then
        kde_qt_dirs="$kde_qt_dirs `$PKG_CONFIG --variable=prefix qt-mt`"
+    else
+       if $PKG_CONFIG --exists tqt-mt ; then
+         kde_qt_dirs="$kde_qt_dirs `$PKG_CONFIG --variable=prefix tqt-mt`"
+       fi
     fi
   fi
 fi
@@ -1491,7 +1517,11 @@ if test -z "$LIBQT_GLOB"; then
     if test "x$kde_use_qt_emb" = "xyes"; then
       LIBQT_GLOB="libqte.*"
     else
-      LIBQT_GLOB="libqt.*"
+      if $PKG_CONFIG --exists qt-mt ; then
+        LIBQT_GLOB="libqt.*"
+      else
+        LIBQT_GLOB="libtqt.*"
+      fi
     fi
   fi
 fi
@@ -1507,7 +1537,11 @@ if test "$kde_qtver" = "3"; then
   if test "x$kde_use_qt_emb" = "xyes"; then
     qtlib="qte"
   else
-    qtlib="qt"
+    if $PKG_CONFIG --exists qt-mt ; then
+      qtlib="qt"
+    else
+      qtlib="tqt"
+    fi
   fi
 fi
 
@@ -1606,6 +1640,10 @@ fi
 if test "$PKG_CONFIG" != "no" ; then
   if $PKG_CONFIG --exists qt-mt ; then
       qt_incdirs="$qt_incdirs `$PKG_CONFIG --variable=includedir qt-mt`"
+  else
+      if $PKG_CONFIG --exists tqt-mt ; then
+          qt_incdirs="$qt_incdirs `$PKG_CONFIG --variable=includedir tqt-mt`"
+      fi
   fi
 fi
 qt_incdirs="$QTINC $qt_incdirs /usr/local/qt/include /usr/include/qt /usr/include /usr/X11R6/include/X11/qt /usr/X11R6/include/qt /usr/X11R6/include/qt2 /usr/include/tqt3 /usr/include/qt3 $x_includes"
@@ -1636,6 +1674,10 @@ fi
 if test "$PKG_CONFIG" != "no" ; then
   if $PKG_CONFIG --exists qt-mt ; then
       qt_libdirs="$qt_incdirs `$PKG_CONFIG --variable=libdir qt-mt`"
+  else
+      if $PKG_CONFIG --exists tqt-mt ; then
+          qt_libdirs="$qt_incdirs `$PKG_CONFIG --variable=libdir tqt-mt`"
+      fi
   fi
 fi
 qt_libdirs="$QTLIB $qt_libdirs /usr/X11R6/lib /usr/lib /usr/local/qt/lib $x_libraries"