1.2.9 release is missing xfce4cpp sources
When trying to build 1.2.9 from the sources:
make -j12 -l12
make all-recursive
make[1]: Entering directory '/tmp/portage/xfce-extra/xfce4-cpugraph-plugin-1.2.9/work/xfce4-cpugraph-plugin-1.2.9'
Making all in panel-plugin
make[2]: Entering directory '/tmp/portage/xfce-extra/xfce4-cpugraph-plugin-1.2.9/work/xfce4-cpugraph-plugin-1.2.9/panel-plugin'
/bin/sh ../libtool --tag=CXX --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I.. -I.. -DNDEBUG -DPACKAGE_LOCALE_DIR=\"/usr/share/locale\" -I/usr/include/xfce4/libxfce4ui-2 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/atk-1.0 -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/webp -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include -I/usr/include/fribidi -I/usr/include/libpng16 -I/usr/include/pixman-1 -I/usr/include/gio-unix-2.0 -I/usr/lib64/libffi/include -pthread -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/xfce4/libxfce4panel-2.0 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/atk-1.0 -I/usr/include/freetype2 -I/usr/includ
e/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/webp -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include -I/usr/include/fribidi -I/usr/include/libpng16 -I/usr/include/pixman-1 -I/usr/include/gio-unix-2.0 -I/usr/lib64/libffi/include -I/usr/include/libmount -I/usr/include/blkid -pthread -I/usr/include/xfce4/xfconf-0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/lib64/libffi/include -pthread -I/usr/include/libmount -I/usr/include/blkid -march=znver2 --param=l1-cache-size=32 --param=l1-cache-line-size=64 -O2 -pipe -frecord-gcc-switches -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-parameter -Wmissing-declarations -Wmissing-noreturn -Wpointer-arith -Wcast-align -Wformat -Wformat-security -Wformat-y2k -Winit-self -Wmissing-include-dirs -Wundef -Wredundant-decls -Wshadow -c -o libcpugraph_la-mode.lo `test -f 'mode.cc' || echo './'`mode.cc
libtool: compile: x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I.. -I.. -DNDEBUG -DPACKAGE_LOCALE_DIR=\"/usr/share/locale\" -I/usr/include/xfce4/libxfce4ui-2 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/atk-1.0 -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/webp -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include -I/usr/include/fribidi -I/usr/include/libpng16 -I/usr/include/pixman-1 -I/usr/include/gio-unix-2.0 -I/usr/lib64/libffi/include -pthread -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/xfce4/libxfce4panel-2.0 -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/cairo -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/atk-1.0 -I/usr/include/freetype2 -I/usr/include/harfbuzz -I/usr/include/xfce4 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/webp -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include -I/usr/include/fribidi -I/usr/include/libpng16 -I/usr/include/pixman-1 -I/usr/include/gio-unix-2.0 -I/usr/lib64/libffi/include -I/usr/include/libmount -I/usr/include/blkid -pthread -I/usr/include/xfce4/xfconf-0 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/lib64/libffi/include -pthread -I/usr/include/libmount -I/usr/include/blkid -march=znver2 --param=l1-cache-size=32 --param=l1-cache-line-size=64 -O2 -pipe -frecord-gcc-switches -Wall -Wextra -Wno-missing-field-initializers -Wno-unused-parameter -Wmissing-declarations -Wmissing-noreturn -Wpointer-arith -Wcast-align -Wformat -Wformat-security -Wformat-y2k -Winit-self -Wmissing-include-dirs -Wundef -Wredundant-decls -Wshadow -c mode.cc -fPIC -DPIC -o .libs/libcpugraph_la-mode.o
In file included from mode.h:27,
from mode.cc:33:
cpu.h:35:10: fatal error: ../xfce4cpp/rgba.hh: No such file or directory
35 | #include "../xfce4cpp/rgba.hh"
| ^~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [Makefile:592: libcpugraph_la-mode.lo] Error 1
make[2]: Leaving directory '/tmp/portage/xfce-extra/xfce4-cpugraph-plugin-1.2.9/work/xfce4-cpugraph-plugin-1.2.9/panel-plugin'
make[1]: *** [Makefile:466: all-recursive] Error 1
make[1]: Leaving directory '/tmp/portage/xfce-extra/xfce4-cpugraph-plugin-1.2.9/work/xfce4-cpugraph-plugin-1.2.9'
make: *** [Makefile:398: all] Error 2The xfce4cpp directory seems to be missing.