gegl-0.4.30 failed the meson test.

Code:
➜  builddir meson test

ninja: Entering directory `....../gegl-0.4.30/builddir'

[213/320] Compiling C object gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o

FAILED: gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o 

ccache cc -Igegl/libgegl-0.4.so.0.429.1.p -Igegl -I../gegl -I. -I.. -Igegl/buffer -I../gegl/buffer -Igegl/graph -I../gegl/graph -Igegl/module -I../gegl/module -Igegl/opencl -I../gegl/opencl -Igegl/operation -I../gegl/operation -Igegl/process -I../gegl/process -Igegl/property-types -I../gegl/property-types -I/usr/local/include/babl-0.1 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gio-unix-2.0 -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=gnu11 -O2 -g -DHAVE_CONFIG_H -Ofast -DGEGL_ENABLE_DEBUG -Winit-self -Wmissing-declarations -Wpointer-arith -Wno-deprecated-declarations -Wmissing-prototypes -Wold-style-definition -fPIC -pthread '-DLIBDIR="/usr/local/lib/x86_64-linux-gnu"' '-DG_LOG_DOMAIN="GEGL"' '-DGEGL_LOCALEDIR="/usr/local/share/locale"' -MD -MQ gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o -MF gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o.d -o gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-color.c.o -c ../gegl/opencl/gegl-cl-color.c

../gegl/opencl/gegl-cl-color.c:32:10: fatal error: opencl/colors.cl.h: No such file or directory

   32 | #include "opencl/colors.cl.h"

      |          ^~~~~~~~~~~~~~~~~~~~

compilation terminated.

[214/320] Compiling C object gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o

FAILED: gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o 

ccache cc -Igegl/libgegl-0.4.so.0.429.1.p -Igegl -I../gegl -I. -I.. -Igegl/buffer -I../gegl/buffer -Igegl/graph -I../gegl/graph -Igegl/module -I../gegl/module -Igegl/opencl -I../gegl/opencl -Igegl/operation -I../gegl/operation -Igegl/process -I../gegl/process -Igegl/property-types -I../gegl/property-types -I/usr/local/include/babl-0.1 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/gio-unix-2.0 -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=gnu11 -O2 -g -DHAVE_CONFIG_H -Ofast -DGEGL_ENABLE_DEBUG -Winit-self -Wmissing-declarations -Wpointer-arith -Wno-deprecated-declarations -Wmissing-prototypes -Wold-style-definition -fPIC -pthread '-DLIBDIR="/usr/local/lib/x86_64-linux-gnu"' '-DG_LOG_DOMAIN="GEGL"' '-DGEGL_LOCALEDIR="/usr/local/share/locale"' -MD -MQ gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o -MF gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o.d -o gegl/libgegl-0.4.so.0.429.1.p/opencl_gegl-cl-init.c.o -c ../gegl/opencl/gegl-cl-init.c

../gegl/opencl/gegl-cl-init.c:38:10: fatal error: opencl/random.cl.h: No such file or directory

   38 | #include "opencl/random.cl.h"

      |          ^~~~~~~~~~~~~~~~~~~~

compilation terminated.

ninja: build stopped: subcommand failed.

Could not rebuild ....../gegl-0.4.30/builddir