--- /dev/null
+--- configure.ac.orig 2009-02-11 21:33:33.000000000 +0100
++++ configure.ac 2009-02-14 22:52:35.000000000 +0100
+@@ -83,13 +83,27 @@
+ PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.6)
+ PKG_CHECK_MODULES(GLIB, glib-2.0)
+ PKG_CHECK_MODULES(LCMS, lcms)
+-PKG_CHECK_MODULES(GTKIMAGEVIEW, gtkimageview >= 1.3,
+- [ have_gtkimageview=yes
+- GTK_LIBS=$GTKIMAGEVIEW_LIBS
+- GTK_CFLAGS=$GTKIMAGEVIEW_CFLAGS
+- AC_DEFINE(HAVE_GTKIMAGEVIEW, 1, have gtk image view) ],
+- [ have_gtkimageview=no
+- AC_MSG_RESULT($GTKIMAGEVIEW_PKG_ERRORS) ] )
++
++AC_ARG_WITH([gtkimageview],
++ [AS_HELP_STRING([--with-gtkimageview],
++ [use gtkimageview for previews @<:@default=check@:>@])],
++ [],
++ [with_gtkimageview=check])
++
++have_gtkimageview=no
++AS_IF([test "x$with_gtkimageview" != xno],
++ [PKG_CHECK_MODULES(GTKIMAGEVIEW, gtkimageview >= 1.3,
++ [ have_gtkimageview=yes
++ GTK_LIBS=$GTKIMAGEVIEW_LIBS
++ GTK_CFLAGS=$GTKIMAGEVIEW_CFLAGS
++ AC_DEFINE(HAVE_GTKIMAGEVIEW, 1, have gtk image view) ],
++ [ have_gtkimageview=no
++ if test "x$with_gtkimageview" != xcheck; then
++ AC_MSG_FAILURE(
++ [--with-gtkimageview was given, but test for gtkimageview failed])
++ fi
++ ] ) ] )
++
+ AC_SUBST(GTK_LIBS)
+ if test "$have_gtkimageview" = "yes"; then
+ PKG_CHECK_MODULES(gtk_image_view_damage_pixels, gtkimageview > 1.5.0,
+@@ -106,12 +120,25 @@
+ test $prefix = NONE || pkg_prefix="$pkg_prefix --define-variable=prefix=$prefix"
+ test $exec_prefix = NONE || pkg_prefix="$pkg_prefix --define-variable=exec_prefix=$exec_prefix"
+
+-PKG_CHECK_MODULES(GIMP, gimpui-2.0,
+- [ have_gimp=yes
+- GIMP_LIBDIR=`$pkg_prefix --variable=gimplibdir gimp-2.0` ],
+- [ have_gimp=no
+- GIMP_LIBDIR=
+- AC_MSG_RESULT($GIMP_PKG_ERRORS) ] )
++AC_ARG_WITH([gimp],
++ [AS_HELP_STRING([--with-gimp],
++ [build gimp plugin @<:@default=check@:>@])],
++ [],
++ [with_gimp=check])
++
++have_gimp=no
++AS_IF([test "x$with_gimp" != xno],
++ [PKG_CHECK_MODULES(GIMP, gimpui-2.0,
++ [ have_gimp=yes
++ GIMP_LIBDIR=`$pkg_prefix --variable=gimplibdir gimp-2.0` ],
++ [ have_gimp=no
++ GIMP_LIBDIR=
++ if test "x$with_gimp" != xcheck; then
++ AC_MSG_FAILURE(
++ [--with-gimp was given, but test for gimp failed])
++ fi
++ ] ) ] )
++
+ AM_CONDITIONAL(MAKE_GIMP, test $have_gimp = yes)
+ AC_SUBST(GIMP_CFLAGS)
+ AC_SUBST(GIMP_LIBS)
+@@ -122,14 +149,27 @@
+ [ AC_DEFINE_UNQUOTED(HAVE_GIMP_2_6, 0, have Gimp 2.6 or later) ])
+ fi
+
+-PKG_CHECK_MODULES(CINEPAINT, cinepaint-gtk >= 0.22,
+- [ have_cinepaint=yes
+- CINEPAINT_LIBDIR=`$pkg_prefix --variable=libdir cinepaint-gtk`
+- CINEPAINT_PROGRAMPLUGINDIR=`$pkg_prefix --variable=programplugindir cinepaint-gtk` ],
+- [ have_cinepaint=no
+- CINEPAINT_LIBDIR=
+- CINEPAINT_PROGRAMPLUGINDIR=
+- AC_MSG_RESULT($CINEPAINT_PKG_ERRORS) ] )
++AC_ARG_WITH([cinepaint],
++ [AS_HELP_STRING([--with-cinepaint],
++ [build cinepaint plugin @<:@default=check@:>@])],
++ [],
++ [with_cinepaint=check])
++
++have_cinepaint=no
++AS_IF([test "x$with_cinepaint" != xno],
++ [PKG_CHECK_MODULES(CINEPAINT, cinepaint-gtk >= 0.22,
++ [ have_cinepaint=yes
++ CINEPAINT_LIBDIR=`$pkg_prefix --variable=libdir cinepaint-gtk`
++ CINEPAINT_PROGRAMPLUGINDIR=`$pkg_prefix --variable=programplugindir cinepaint-gtk` ],
++ [ have_cinepaint=no
++ CINEPAINT_LIBDIR=
++ CINEPAINT_PROGRAMPLUGINDIR=
++ if test "x$with_cinepaint" != xcheck; then
++ AC_MSG_FAILURE(
++ [--with-cinepaint was given, but test for cinepaint failed])
++ fi
++ ] ) ] )
++
+ AM_CONDITIONAL(MAKE_CINEPAINT, test $have_cinepaint = yes)
+ AC_SUBST(CINEPAINT_CFLAGS)
+ AC_SUBST(CINEPAINT_LIBS)
+@@ -189,23 +229,43 @@
+ AC_CHECK_LIB(cfitsio, ffcmsg))
+ have_fits=${ac_cv_lib_cfitsio_ffcmsg:-no}
+
+-PKG_CHECK_MODULES(EXIV2, exiv2 >= 0.11,
+- [ have_exiv2=yes
+- AC_DEFINE(HAVE_EXIV2, 1, have exiv2) ],
+- [ have_exiv2=no
+- AC_MSG_RESULT($EXIV2_PKG_ERRORS) ] )
++# check for exiv2 library
++AC_ARG_WITH([exiv2],
++ [AS_HELP_STRING([--with-exiv2],
++ [use exiv2 library for exif information extraction @<:@default=check@:>@])],
++ [],
++ [with_exiv2=check])
++
++have_exiv2=no
++AS_IF([test "x$with_exiv2" != xno],
++ [PKG_CHECK_MODULES(EXIV2, exiv2 >= 0.11,
++ [ have_exiv2=yes
++ AC_DEFINE(HAVE_EXIV2, 1, have exiv2) ],
++ [ have_exiv2=no
++ if test "x$with_exiv2" != xcheck; then
++ AC_MSG_FAILURE(
++ [--with-exiv2 was given, but test for exiv2 failed])
++ fi
++ ] ) ] )
+
+ # Check for the lensfun library
+-AC_MSG_CHECKING(whether to use lensfun)
+-AC_ARG_WITH(lensfun,
+- [ --with-lensfun use the lensfun library - experimental feature,
+- read http://ufraw.sourceforge.net/lensfun.html before using it. ],
+- [ AC_MSG_RESULT(yes)
+- PKG_CHECK_MODULES(LENSFUN, lensfun >= 0.2.3,
+- [ have_lensfun=yes
+- AC_DEFINE(HAVE_LENSFUN, 1, have lensfun library) ] ) ],
+- [ have_lensfun=no
+- AC_MSG_RESULT($have_lensfun) ] )
++AC_ARG_WITH([lensfun],
++ [AS_HELP_STRING([--with-lensfun],
++ [use the lensfun library - experimental feature, read http://ufraw.sourceforge.net/lensfun.html before using it. @<:@default=check@:>@])],
++ [],
++ [with_lensfun=check])
++
++have_lensfun=no
++AS_IF([test "x$with_lensfun" != xno],
++ [PKG_CHECK_MODULES(LENSFUN, lensfun >= 0.2.3,
++ [ have_lensfun=yes
++ AC_DEFINE(HAVE_LENSFUN, 1, have lensfun library) ],
++ [ have_lensfun=no
++ if test "x$with_lensfun" != xcheck; then
++ AC_MSG_FAILURE(
++ [--with-lensfun was given, but test for lensfun failed])
++ fi
++ ] ) ] )
+
+ # UFRAW_CPPFLAGS is added to the preprocessor flags AM_CPPFLAGS,
+ # affecting also the C and C++ compilers.