If you want something which is not in the repositories you have to compile it.
I downloaded the theme manager tarfile and then had a go at compiling it.
I have tried a few times now and I always seem to get a segmentation fault when I try to run the program.
I think I have installed all the packages needed to compile it.
Here is the compilation output:root@trombone:/tmp/Xfce-Theme-Manager-0.3.5# ./autogen.sh --prefix=/usr/local/bin
Xfce-Theme-Manager/app/../sources:1: warning: source file '../src/callbacks.cpp' is in a subdirectory,
Xfce-Theme-Manager/app/../sources:1: but option 'subdir-objects' is disabled
Xfce-Theme-Manager/app/Makefile.am:3: 'Xfce-Theme-Manager/app/../sources' included from here
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled. For now, the corresponding output
automake: object file(s) will be placed in the top-level directory. However,
automake: this behaviour will change in future Automake versions: they will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
Xfce-Theme-Manager/app/../sources:1: warning: source file '../src/cli.cpp' is in a subdirectory,
Xfce-Theme-Manager/app/../sources:1: but option 'subdir-objects' is disabled
Xfce-Theme-Manager/app/Makefile.am:3: 'Xfce-Theme-Manager/app/../sources' included from here
Xfce-Theme-Manager/app/../sources:1: warning: source file '../src/database.cpp' is in a subdirectory,
Xfce-Theme-Manager/app/../sources:1: but option 'subdir-objects' is disabled
Xfce-Theme-Manager/app/Makefile.am:3: 'Xfce-Theme-Manager/app/../sources' included from here
Xfce-Theme-Manager/app/../sources:1: warning: source file '../src/globals.cpp' is in a subdirectory,
Xfce-Theme-Manager/app/../sources:1: but option 'subdir-objects' is disabled
Xfce-Theme-Manager/app/Makefile.am:3: 'Xfce-Theme-Manager/app/../sources' included from here
Xfce-Theme-Manager/app/../sources:1: warning: source file '../src/gui.cpp' is in a subdirectory,
Xfce-Theme-Manager/app/../sources:1: but option 'subdir-objects' is disabled
Xfce-Theme-Manager/app/Makefile.am:3: 'Xfce-Theme-Manager/app/../sources' included from here
Xfce-Theme-Manager/app/../sources:1: warning: source file '../src/main.cpp' is in a subdirectory,
Xfce-Theme-Manager/app/../sources:1: but option 'subdir-objects' is disabled
Xfce-Theme-Manager/app/Makefile.am:3: 'Xfce-Theme-Manager/app/../sources' included from here
Xfce-Theme-Manager/app/../sources:1: warning: source file '../src/panels.cpp' is in a subdirectory,
Xfce-Theme-Manager/app/../sources:1: but option 'subdir-objects' is disabled
Xfce-Theme-Manager/app/Makefile.am:3: 'Xfce-Theme-Manager/app/../sources' included from here
Xfce-Theme-Manager/app/../sources:1: warning: source file '../src/thumbnails.cpp' is in a subdirectory,
Xfce-Theme-Manager/app/../sources:1: but option 'subdir-objects' is disabled
Xfce-Theme-Manager/app/Makefile.am:3: 'Xfce-Theme-Manager/app/../sources' included from here
checking for g++... g++
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking for style of include used by make... GNU
checking whether make supports nested variables... yes
checking dependency style of g++... gcc3
checking for gcc... gcc
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for GTK... yes
checking for GLIB... yes
checking for GTHREAD... yes
checking for XCURSOR... yes
checking for XFCE4UI... yes
checking for XFCONF... yes
checking for unzip... true
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating Xfce-Theme-Manager/app/Makefile
config.status: creating config.h
config.status: executing depfiles commands
root@trombone:/tmp/Xfce-Theme-Manager-0.3.5# make
make all-recursive
make[1]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5'
Making all in Xfce-Theme-Manager/app
make[2]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5/Xfce-Theme-Manager/app'
g++ -DHAVE_CONFIG_H -I. -I../.. -I../.. -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/xfconf-0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/libxfce4ui-1 -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPREFIX=\""/usr/local/bin\"" -DDATADIR=\""/usr/local/bin/share/Xfce-Theme-Manager"\" -DSYSCONFDIR=\""/usr/local/bin/etc/Xfce-Theme-Manager"\" -DLIBDIR=\""/usr/local/bin/lib/Xfce-Theme-Manager"\" -DGTK_DISABLE_DEPRECATED -DGTK_DISABLE_SINGLE_INCLUDES -DGDK_DISABLE_DEPRECATED -DGSEAL_ENABLE -O3 -export-dynamic -Wall -MT xfcethememanager-callbacks.o -MD -MP -MF .deps/xfcethememanager-callbacks.Tpo -c -o xfcethememanager-callbacks.o `test -f '../src/callbacks.cpp' || echo './'`../src/callbacks.cpp
mv -f .deps/xfcethememanager-callbacks.Tpo .deps/xfcethememanager-callbacks.Po
g++ -DHAVE_CONFIG_H -I. -I../.. -I../.. -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/xfconf-0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/libxfce4ui-1 -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPREFIX=\""/usr/local/bin\"" -DDATADIR=\""/usr/local/bin/share/Xfce-Theme-Manager"\" -DSYSCONFDIR=\""/usr/local/bin/etc/Xfce-Theme-Manager"\" -DLIBDIR=\""/usr/local/bin/lib/Xfce-Theme-Manager"\" -DGTK_DISABLE_DEPRECATED -DGTK_DISABLE_SINGLE_INCLUDES -DGDK_DISABLE_DEPRECATED -DGSEAL_ENABLE -O3 -export-dynamic -Wall -MT xfcethememanager-cli.o -MD -MP -MF .deps/xfcethememanager-cli.Tpo -c -o xfcethememanager-cli.o `test -f '../src/cli.cpp' || echo './'`../src/cli.cpp
mv -f .deps/xfcethememanager-cli.Tpo .deps/xfcethememanager-cli.Po
g++ -DHAVE_CONFIG_H -I. -I../.. -I../.. -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/xfconf-0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/libxfce4ui-1 -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPREFIX=\""/usr/local/bin\"" -DDATADIR=\""/usr/local/bin/share/Xfce-Theme-Manager"\" -DSYSCONFDIR=\""/usr/local/bin/etc/Xfce-Theme-Manager"\" -DLIBDIR=\""/usr/local/bin/lib/Xfce-Theme-Manager"\" -DGTK_DISABLE_DEPRECATED -DGTK_DISABLE_SINGLE_INCLUDES -DGDK_DISABLE_DEPRECATED -DGSEAL_ENABLE -O3 -export-dynamic -Wall -MT xfcethememanager-database.o -MD -MP -MF .deps/xfcethememanager-database.Tpo -c -o xfcethememanager-database.o `test -f '../src/database.cpp' || echo './'`../src/database.cpp
mv -f .deps/xfcethememanager-database.Tpo .deps/xfcethememanager-database.Po
g++ -DHAVE_CONFIG_H -I. -I../.. -I../.. -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/xfconf-0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/libxfce4ui-1 -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPREFIX=\""/usr/local/bin\"" -DDATADIR=\""/usr/local/bin/share/Xfce-Theme-Manager"\" -DSYSCONFDIR=\""/usr/local/bin/etc/Xfce-Theme-Manager"\" -DLIBDIR=\""/usr/local/bin/lib/Xfce-Theme-Manager"\" -DGTK_DISABLE_DEPRECATED -DGTK_DISABLE_SINGLE_INCLUDES -DGDK_DISABLE_DEPRECATED -DGSEAL_ENABLE -O3 -export-dynamic -Wall -MT xfcethememanager-globals.o -MD -MP -MF .deps/xfcethememanager-globals.Tpo -c -o xfcethememanager-globals.o `test -f '../src/globals.cpp' || echo './'`../src/globals.cpp
mv -f .deps/xfcethememanager-globals.Tpo .deps/xfcethememanager-globals.Po
g++ -DHAVE_CONFIG_H -I. -I../.. -I../.. -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/xfconf-0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/libxfce4ui-1 -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPREFIX=\""/usr/local/bin\"" -DDATADIR=\""/usr/local/bin/share/Xfce-Theme-Manager"\" -DSYSCONFDIR=\""/usr/local/bin/etc/Xfce-Theme-Manager"\" -DLIBDIR=\""/usr/local/bin/lib/Xfce-Theme-Manager"\" -DGTK_DISABLE_DEPRECATED -DGTK_DISABLE_SINGLE_INCLUDES -DGDK_DISABLE_DEPRECATED -DGSEAL_ENABLE -O3 -export-dynamic -Wall -MT xfcethememanager-gui.o -MD -MP -MF .deps/xfcethememanager-gui.Tpo -c -o xfcethememanager-gui.o `test -f '../src/gui.cpp' || echo './'`../src/gui.cpp
mv -f .deps/xfcethememanager-gui.Tpo .deps/xfcethememanager-gui.Po
g++ -DHAVE_CONFIG_H -I. -I../.. -I../.. -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/xfconf-0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/libxfce4ui-1 -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPREFIX=\""/usr/local/bin\"" -DDATADIR=\""/usr/local/bin/share/Xfce-Theme-Manager"\" -DSYSCONFDIR=\""/usr/local/bin/etc/Xfce-Theme-Manager"\" -DLIBDIR=\""/usr/local/bin/lib/Xfce-Theme-Manager"\" -DGTK_DISABLE_DEPRECATED -DGTK_DISABLE_SINGLE_INCLUDES -DGDK_DISABLE_DEPRECATED -DGSEAL_ENABLE -O3 -export-dynamic -Wall -MT xfcethememanager-main.o -MD -MP -MF .deps/xfcethememanager-main.Tpo -c -o xfcethememanager-main.o `test -f '../src/main.cpp' || echo './'`../src/main.cpp
mv -f .deps/xfcethememanager-main.Tpo .deps/xfcethememanager-main.Po
g++ -DHAVE_CONFIG_H -I. -I../.. -I../.. -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/xfconf-0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/libxfce4ui-1 -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPREFIX=\""/usr/local/bin\"" -DDATADIR=\""/usr/local/bin/share/Xfce-Theme-Manager"\" -DSYSCONFDIR=\""/usr/local/bin/etc/Xfce-Theme-Manager"\" -DLIBDIR=\""/usr/local/bin/lib/Xfce-Theme-Manager"\" -DGTK_DISABLE_DEPRECATED -DGTK_DISABLE_SINGLE_INCLUDES -DGDK_DISABLE_DEPRECATED -DGSEAL_ENABLE -O3 -export-dynamic -Wall -MT xfcethememanager-panels.o -MD -MP -MF .deps/xfcethememanager-panels.Tpo -c -o xfcethememanager-panels.o `test -f '../src/panels.cpp' || echo './'`../src/panels.cpp
mv -f .deps/xfcethememanager-panels.Tpo .deps/xfcethememanager-panels.Po
g++ -DHAVE_CONFIG_H -I. -I../.. -I../.. -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/xfconf-0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/xfce4/libxfce4ui-1 -I/usr/include/gtk-2.0 -I/usr/lib/x86_64-linux-gnu/gtk-2.0/include -I/usr/include/gio-unix-2.0/ -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng12 -I/usr/include/pango-1.0 -pthread -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -DPREFIX=\""/usr/local/bin\"" -DDATADIR=\""/usr/local/bin/share/Xfce-Theme-Manager"\" -DSYSCONFDIR=\""/usr/local/bin/etc/Xfce-Theme-Manager"\" -DLIBDIR=\""/usr/local/bin/lib/Xfce-Theme-Manager"\" -DGTK_DISABLE_DEPRECATED -DGTK_DISABLE_SINGLE_INCLUDES -DGDK_DISABLE_DEPRECATED -DGSEAL_ENABLE -O3 -export-dynamic -Wall -MT xfcethememanager-thumbnails.o -MD -MP -MF .deps/xfcethememanager-thumbnails.Tpo -c -o xfcethememanager-thumbnails.o `test -f '../src/thumbnails.cpp' || echo './'`../src/thumbnails.cpp
mv -f .deps/xfcethememanager-thumbnails.Tpo .deps/xfcethememanager-thumbnails.Po
g++ -O3 -export-dynamic -Wall -o xfcethememanager xfcethememanager-callbacks.o xfcethememanager-cli.o xfcethememanager-database.o xfcethememanager-globals.o xfcethememanager-gui.o xfcethememanager-main.o xfcethememanager-panels.o xfcethememanager-thumbnails.o -lglib-2.0 -lgthread-2.0 -pthread -lglib-2.0 -lgtk-x11-2.0 -lgdk-x11-2.0 -lpangocairo-1.0 -latk-1.0 -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lglib-2.0 -lfontconfig -lfreetype -lXcursor -lxfconf-0 -ldbus-glib-1 -ldbus-1 -lgobject-2.0 -lglib-2.0 -lxfce4ui-1 -lgtk-x11-2.0 -lgdk-x11-2.0 -lpangocairo-1.0 -latk-1.0 -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lfontconfig -lfreetype -lxfce4util -lglib-2.0
make[2]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5/Xfce-Theme-Manager/app'
make[2]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5'
mv Xfce-Theme-Manager/app/xfcethememanager Xfce-Theme-Manager/app/xfce-theme-manager
make[2]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5'
make[1]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5'
root@trombone:/tmp/Xfce-Theme-Manager-0.3.5# make install
Making install in Xfce-Theme-Manager/app
make[1]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5/Xfce-Theme-Manager/app'
g++ -O3 -export-dynamic -Wall -o xfcethememanager xfcethememanager-callbacks.o xfcethememanager-cli.o xfcethememanager-database.o xfcethememanager-globals.o xfcethememanager-gui.o xfcethememanager-main.o xfcethememanager-panels.o xfcethememanager-thumbnails.o -lglib-2.0 -lgthread-2.0 -pthread -lglib-2.0 -lgtk-x11-2.0 -lgdk-x11-2.0 -lpangocairo-1.0 -latk-1.0 -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lglib-2.0 -lfontconfig -lfreetype -lXcursor -lxfconf-0 -ldbus-glib-1 -ldbus-1 -lgobject-2.0 -lglib-2.0 -lxfce4ui-1 -lgtk-x11-2.0 -lgdk-x11-2.0 -lpangocairo-1.0 -latk-1.0 -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lfontconfig -lfreetype -lxfce4util -lglib-2.0
make[2]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5/Xfce-Theme-Manager/app'
/bin/mkdir -p '/usr/local/bin/bin'
/usr/bin/install -c xfcethememanager '/usr/local/bin/bin'
make install-exec-hook
make[3]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5/Xfce-Theme-Manager/app'
mv /usr/local/bin/bin/xfcethememanager /usr/local/bin/bin/xfce-theme-manager
mkdir -p /usr/local/bin/share/man/man1 /usr/local/bin/share/man/de/man1 /usr/local/bin/share/man/es/man1 /usr/local/bin/share/man/pl/man1 /usr/local/bin/share/man/fr/man1
mkdir -p /usr/local/bin/share/applications /usr/local/bin/share/pixmaps
gzip --stdout ../resources/man/xfce-theme-manager.1 > /usr/local/bin/share/man/man1/xfce-theme-manager.1.gz
gzip --stdout ../resources/man/
xfce-theme-manager.1.es > /usr/local/bin/share/man/es/man1/xfce-theme-manager.1.gz
gzip --stdout ../resources/man/
xfce-theme-manager.1.de > /usr/local/bin/share/man/de/man1/xfce-theme-manager.1.gz
gzip --stdout ../resources/man/
xfce-theme-manager.1.pl > /usr/local/bin/share/man/pl/man1/xfce-theme-manager.1.gz
gzip --stdout ../resources/man/
xfce-theme-manager.1.fr > /usr/local/bin/share/man/fr/man1/xfce-theme-manager.1.gz
cp ../resources/pixmaps/Xfce-Theme-Manager.desktop /usr/local/bin/share/applications/
cp ../resources/pixmaps/xfce-theme-manager.png /usr/local/bin/share/pixmaps/
make[3]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5/Xfce-Theme-Manager/app'
/bin/mkdir -p '/usr/local/bin/share/Xfce-Theme-Manager/docs'
/usr/bin/install -c -m 644 ../resources/docs/gpl-3.0.txt '/usr/local/bin/share/Xfce-Theme-Manager/docs'
/bin/mkdir -p '/usr/local/bin/share/Xfce-Theme-Manager/scripts'
/usr/bin/install -c -m 644 ../resources/scripts/RandomAll ../resources/scripts/RandomGTK ../resources/scripts/RandomTheme ../resources/scripts/RandomWallpaper ../resources/scripts/RandomWMBorder ../resources/scripts/SequentialGTK ../resources/scripts/SequentialIcons ../resources/scripts/SequentialTheme ../resources/scripts/SequentialWallpaper ../resources/scripts/SequentialWMBorder '/usr/local/bin/share/Xfce-Theme-Manager/scripts'
make[2]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5/Xfce-Theme-Manager/app'
make[1]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5/Xfce-Theme-Manager/app'
make[1]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5'
mv Xfce-Theme-Manager/app/xfcethememanager Xfce-Theme-Manager/app/xfce-theme-manager
make[2]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5'
make[2]: Nothing to be done for 'install-exec-am'.
make install-data-hook
make[3]: Entering directory '/tmp/Xfce-Theme-Manager-0.3.5'
chmod +x /usr/local/bin/share/Xfce-Theme-Manager/scripts/*
make[3]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5'
make[2]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5'
make[1]: Leaving directory '/tmp/Xfce-Theme-Manager-0.3.5'
I could look for dmesg or var/logs output if that would help from when I ran it and got the segmentation fault.