--- a/config/Makefile.SH
+++ b/config/Makefile.SH
@@ -74,12 +74,12 @@ case "$which_graphic_lib" in
 ps|svg|none)
   graph=plot$which_graphic_lib;;
 Qt4)
-  PLOTCFLAGS="\$(QTINC)"
-  PLOTLIBS="\$(QTLIB) $QTLIBS"
+  PLOTCFLAGS="`${PKG_CONFIG} --cflags QtGui`"
+  PLOTLIBS="`${PKG_CONFIG} --libs QtGui`"
   graph=plotQt4;;
 fltk)
-  PLOTCFLAGS=
+  PLOTCFLAGS="`fltk-config --cxxflags` $X11_INC"
   PLOTLIBS="$FLTK_LIBS"
   postconfig='fltk-config --post '
   graph=plotfltk;;
 win32)
@@ -267,7 +267,7 @@ RLLIBS    = $RLLIBS
 # GMP
 GMPINCLUDE = $GMPINCLUDE
 # Graphic library.
-QTMOC      = $QTMOC
+QTMOC      = "`which moc`"
 QTINC      = $QTINC
 QTLIB      = $QTLIB
 PLOTCFLAGS = $PLOTCFLAGS
--- a/config/get_config_options
+++ b/config/get_config_options
@@ -86,6 +86,7 @@ while test $# -gt 0; do
   --with-ncurses-lib=*|--with-ncurses=*)
       with_ncurses_lib=`echo "$1" | sed -e 's/[-a-z]*=//'` ;;
 
+  --without-qt|--with-qt=no) without_qt=yes ;;
   --with-qt) with_qt=yes ;;
   --with-qt=*)
       with_qt=`echo "$1" | sed -e 's/[-a-z]*=//'` ;;
@@ -94,6 +95,7 @@ while test $# -gt 0; do
   --with-qt-include=*)
       with_qt_include=`echo "$1" | sed -e 's/[-a-z]*=//'` ;;
 
+  --without-fltk|--with-fltk=no) without_fltk=yes ;;
   --with-fltk) with_fltk=yes ;;
   --with-fltk=*)
       with_fltk=`echo "$1" | sed -e 's/[-a-z]*=//'` ;;
@@ -172,10 +174,12 @@ Optional libraries:
   --with-gmp-lib=DIR          specify location of gmp libs
 
   --with-qt[=DIR]            use the Qt graphical library [prefix for Qt dir.]
+  --without-qt               do not try to use the Qt lib
   --with-qt-include=DIR      specify location of Qt headers
   --with-qt-lib=DIR          specify location of Qt libs
 
   --with-fltk                use the FLTK graphical library [need fltk-config]
+  --without-fltk             do not try to use the FLTK lib
 
 Miscellaneous
   --with-runtime-perl[=path-to-perl-binary] for gphelp / tex2mail
--- a/config/get_graphic_lib
+++ b/config/get_graphic_lib
@@ -7,6 +7,7 @@ FLTK_LIBS QTDIR QTLIB"
 
 if test -n "$with_fltk"; then which_graphic_lib=fltk; fi
 if test -n "$with_qt";   then which_graphic_lib=Qt; fi
+if test -n "$without_fltk" -a -n "$without_qt"; then which_graphic_lib=none; fi
 if test "$fastread" != yes; then
   cat << EOT
 ==========================================================================