Update Autotools tqt checks

acinclude.m4.in

@@ -2267,6 +2267,7 @@ AC_CACHE_VAL(kde_cv_have_kdeqtaddon,
  LDFLAGS="$LDFLAGS $all_libraries $USER_LDFLAGS"
 
 if test "$kde_qtver" = "3"; then
+if $PKG_CONFIG --exists qt-mt ; then
  AC_TRY_LINK([
    #include <qdom.h>
  ],
@@ -2276,6 +2277,17 @@ if test "$kde_qtver" = "3"; then
   kde_cv_have_kdeqtaddon=yes,
   kde_cv_have_kdeqtaddon=no
  )
+else
+ AC_TRY_LINK([
+   #include <tqdom.h>
+ ],
+ [
+   TQDomDocument doc;
+ ],
+  kde_cv_have_kdeqtaddon=yes,
+  kde_cv_have_kdeqtaddon=no
+ )
+fi
 fi
 
 if test "$kde_qtver" = "4"; then
@@ -2948,6 +2960,7 @@ AC_TRY_LINK(
             eval "kde_cv_qt_jpeg=yes")
 fi
 if test "$kde_qtver" = "3"; then
+if $PKG_CONFIG --exists qt-mt ; then
 AC_TRY_LINK(
 [#include <qapplication.h>],
             [
@@ -2956,6 +2969,16 @@ AC_TRY_LINK(
             QApplication app(argc, argv);],
             eval "kde_cv_qt_jpeg=no",
             eval "kde_cv_qt_jpeg=yes")
+else
+AC_TRY_LINK(
+[#include <tqapplication.h>],
+            [
+            int argc;
+            char** argv;
+            TQApplication app(argc, argv);],
+            eval "kde_cv_qt_jpeg=no",
+            eval "kde_cv_qt_jpeg=yes")
+fi
 fi
 LIBS="$ac_save_LIBS"
 CXXFLAGS="$ac_save_CXXFLAGS"
@@ -3802,6 +3825,7 @@ AC_DEFUN([KDE_ENABLE_HIDDEN_VISIBILITY],
           CXXFLAGS="$CXXFLAGS $all_includes"
 
 if test "$kde_qtver" = "3"; then
+if $PKG_CONFIG --exists qt-mt ; then
           AC_TRY_COMPILE(
           [
 #include <qglobal.h>
@@ -3811,6 +3835,17 @@ if test "$kde_qtver" = "3"; then
 #endif
           ], [/* elvis is alive */],
           kde_cv_val_qt_gcc_visibility_patched=no, kde_cv_val_qt_gcc_visibility_patched=yes)
+else
+          AC_TRY_COMPILE(
+          [
+#include <tqglobal.h>
+#if Q_EXPORT - 0 != 0
+/* if this compiles, then Q_EXPORT is undefined */
+/* if Q_EXPORT is nonempty, this will break compilation */
+#endif
+          ], [/* elvis is alive */],
+          kde_cv_val_qt_gcc_visibility_patched=no, kde_cv_val_qt_gcc_visibility_patched=yes)
+fi
 fi
 
 if test "$kde_qtver" = "4"; then
@@ -5068,6 +5103,7 @@ ac_save_CXXFLAGS="$CXXFLAGS"
 if test "$kde_qtver" = "3"; then
 LIBS="$all_libraries -lqimgio -lpng -lz $LIBJPEG $LIBQT"
 CXXFLAGS="$CXXFLAGS -I$qt_incdir $all_includes"
+if $PKG_CONFIG --exists qt-mt ; then
 AC_TRY_RUN(dnl
 [
 #include <qimageio.h>
@@ -5081,6 +5117,21 @@ int main() {
             ac_cv_lib_qimgio=yes,
             ac_cv_lib_qimgio=no,
 	    ac_cv_lib_qimgio=no)
+else
+AC_TRY_RUN(dnl
+[
+#include <tqimageio.h>
+#include <tqstring.h>
+int main() {
+                TQString t = "hallo";
+                t.fill('t');
+                qInitImageIO();
+}
+],
+            ac_cv_lib_qimgio=yes,
+            ac_cv_lib_qimgio=no,
+            ac_cv_lib_qimgio=no)
+fi
 fi
 
 if test "$kde_qtver" = "4"; then