Looks like this monster has returned. :(

Building from latest GIT.

Problem exists only for automake packages.

I built qt3 and not tqt3. Core packages built without error.

I have the tqtinterface headers installed to /usr/include/tqt.

Looking at the configure.log reveals the following:

1) Seems the configure process is hard-coded to look for header files prefixed with "n." I don't know whether that is intentional or a typo. A test patch to strip the "n" does not help resolve the failure.

==================================================
diff -urN tdeaccessibility/admin/acinclude.m4.in tdeaccessibility.new/admin/acinclude.m4.in
--- tdeaccessibility/admin/acinclude.m4.in  2012-02-15 13:33:08.000000000 -0600
+++ tdeaccessibility.new/admin/acinclude.m4.in  2012-02-15 22:25:42.496185447 -0600
@@ -1663,11 +1663,11 @@
     kde_qt_header="Qt/qstyle.h"
   else
     kde_qt_header=qstyle.h
-    kde_tqt_header=ntqstyle.h
+    kde_tqt_header=tqstyle.h
   fi
 else
   kde_qt_header=qglobal.h
-  kde_tqt_header=ntqglobal.h
+  kde_tqt_header=tqglobal.h
 fi

 AC_FIND_FILE($kde_qt_header, $qt_incdirs, qt_incdir)
==================================================

2) Seems the failure message is misleading. Seems the actual failure is failing to find the tqtinterface header files. Here is the relevant snippet from configure.log:

==================================================
configure:20809: checking for perl
configure:20866: result: /usr/bin/perl
configure:21023: checking for Qt
configure: 21146: /opt/trinity/include/qstyle.h
taking that
configure: 21162: /opt/trinity/include/ntqstyle.h
configure: 21162: /opt/trinity/include/ntqstyle.h
configure: 21162: /opt/trinity/ntqstyle.h
configure: 21162: /usr/lib/tqt3/include/ntqstyle.h
configure: 21162: /usr/lib/tqt3/ntqstyle.h
configure: 21162: /usr/lib/qt3/include/ntqstyle.h
configure: 21162: /usr/lib/qt3/ntqstyle.h
configure: 21162: /usr/lib/qt/include/ntqstyle.h
configure: 21162: /usr/lib/qt/ntqstyle.h
configure: 21162: /usr/share/tqt3/include/ntqstyle.h
configure: 21162: /usr/share/tqt3/ntqstyle.h
configure: 21162: /usr/share/qt3/include/ntqstyle.h
configure: 21162: /usr/share/qt3/ntqstyle.h
configure: 21162: /usr/lib/qt-3.3/include/ntqstyle.h
configure: 21162: /usr/lib/qt-3.3/ntqstyle.h
configure: 21162: /opt/trinity/include/ntqstyle.h
configure: 21162: /opt/trinity/ntqstyle.h
configure: 21162: /opt/trinity/include/ntqstyle.h
configure: 21162: /usr/local/qt/include/ntqstyle.h
configure: 21162: /usr/include/qt/ntqstyle.h
configure: 21162: /usr/include/ntqstyle.h
configure: 21162: /usr/X11R6/include/X11/qt/ntqstyle.h
configure: 21162: /usr/ In my case tdeaccessibility.X11R6/include/qt/ntqstyle.h
configure: 21162: /usr/X11R6/include/qt2/ntqstyle.h
configure: 21162: /usr/include/tqt3/ntqstyle.h
configure: 21162: /usr/include/qt3/ntqstyle.h
configure: 21162: ./ntqstyle.h
configure:21380: rm -rf SunWS_cache; g++ -o conftest -Wno-long-long -Wundef -ansi -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -DNDEBUG -DNO_DEBUG -O2 -O2 -march=i486 -mtune=i686 -Wformat-security -Wmissing-format-attribute -Wno-non-virtual-dtor -fno-exceptions -fno-check-new -fno-common -I/usr/include/tqt -INO -I.  -DQT_THREAD_SUPPORT  -D_REENTRANT  -L/opt/trinity/lib      conftest.cpp  -lqt-mt -lpng -lz -lm -ljpeg -ldl  -lXext -lX11 -lSM -lICE  -lpthread 1>&5
conftest.cpp:2:21: error: qglobal.h: No such file or directory
conftest.cpp:3:26: error: qapplication.h: No such file or directory
conftest.cpp:4:21: error: qcursor.h: No such file or directory
conftest.cpp:5:27: error: qstylefactory.h: No such file or directory
conftest.cpp:6:34: error: private/qucomextra_p.h: No such file or directory
conftest.cpp:7:8: warning: "TQT_VERSION" is not defined
conftest.cpp:8:2: error: #error 1
==================================================

Notice in all of the 21162 messages that the configure process looks in just about every place except /usr/include/tqt.

Here are the relevant environment variables from my build log:

PKG_CONFIG_PATH: /usr/local/lib/pkgconfig:/usr/lib/pkgconfig:/opt/trinity/lib/pkgconfig
QTDIR: /opt/trinity
QT_INCLUDE_DIR: /opt/trinity/include
QT_LIB_DIR: /opt/trinity/lib

/usr/lib/pkgconfig/tqt.pc looks correct.

Darrell