>   kdiff3 (another indispensable package) is suffering a
> build failure when it
> attempts to compile it's first source. I have tried
> adjusting what I know to
> adjust, but the failure persists and looks like a possible
> TQT issue with this
> package. The error is:
> 
>  /bin/sh ../libtool
> --tag=CXX   --mode=compile g++
> -DHAVE_CONFIG_H -I. -I..
> -I/opt/trinity/include -I/opt/tqt3/include -I. -include
> tqt.h
> -DQT_THREAD_SUPPORT  -D_REENTRANT  -Wno-long-long
> -Wundef -ansi
> -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -Wcast-align
> -Wchar-subscripts -Wall -W
> -Wpointer-arith -fno-builtin -g3 -fno-inline -march=x86-64
> -mtune=generic -O2
> -pipe -fstack-protector --param=ssp-buffer-size=4
> -D_FORTIFY_SOURCE=2
> -Wformat-security -Wmissing-format-attribute
> -Wno-non-virtual-dtor
> -fno-exceptions -fno-check-new -fno-common
> -I/usr/include/tqt  -MT
> kdiff3plugin.lo -MD -MP -MF .deps/kdiff3plugin.Tpo -c -o
> kdiff3plugin.lo
> kdiff3plugin.cpp
> libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I..
> -I/opt/trinity/include
> -I/opt/tqt3/include -I. -include tqt.h -DQT_THREAD_SUPPORT
> -D_REENTRANT
> -Wno-long-long -Wundef -ansi -D_XOPEN_SOURCE=500
> -D_BSD_SOURCE -Wcast-align
> -Wchar-subscripts -Wall -W -Wpointer-arith -fno-builtin -g3
> -fno-inline
> -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector
> --param=ssp-buffer-size=4 -D_FORTIFY_SOURCE=2
> -Wformat-security
> -Wmissing-format-attribute -Wno-non-virtual-dtor
> -fno-exceptions -fno-check-new
> -fno-common -I/usr/include/tqt -MT kdiff3plugin.lo -MD -MP
> -MF
> .deps/kdiff3plugin.Tpo -c kdiff3plugin.cpp  -fPIC -DPIC
> -o .libs/kdiff3plugin.o
> In file included from
> /opt/trinity/include/kfileitem.h:31:0,
>              
>    from
> /opt/trinity/include/konq_popupmenu.h:32,
>              
>    from kdiff3plugin.h:24,
>              
>    from kdiff3plugin.cpp:21:
> /opt/trinity/include/kfilemetainfo.h:1237:34: warning: type
> qualifiers ignored
> on function return type [-Wignored-qualifiers]
> kdiff3plugin.cpp: In constructor
> 'KDiff3Plugin::KDiff3Plugin(KonqPopupMenu*,
> const char*, const TQStringList&)':
> kdiff3plugin.cpp:153:27: error: 'addAction' was not declared
> in this scope
> make[2]: *** [kdiff3plugin.lo] Error 1
> make[2]: Leaving directory `/build/src/kdiff3/kdiff3plugin'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/build/src/kdiff3'
> make: *** [all] Error 2
> 
>   What say the experts, is it something I'm doing(not
> doing) or is it a bug in
> the code?

Way past my bedtime and that is where I am heading.

Try adding --enable-closure.

Darrell