FAILED: CMakeFiles/slopy.dir/src/slop.cpp.o
/run/ccache/bin/c++  -DCXXOPTS_USE_UNICODE -DSLOP_OPENGL=\"True\" -DSLOP_VERSION=\"v7.4\" -Dslopy_EXPORTS -I. -I/app/include -O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fPIC   -std=c++11 -MD -MT CMakeFiles/slopy.dir/src/slop.cpp.o -MF CMakeFiles/slopy.dir/src/slop.cpp.o.d -o CMakeFiles/slopy.dir/src/slop.cpp.o -c src/slop.cpp
In file included from src/slop.cpp:2:
/app/include/GL/glew.h:1205:14: fatal error: GL/glu.h: No such file or directory
 1205 | #    include <GL/glu.h>
      |              ^~~~~~~~~~
compilation terminated.
[8/16] Building CXX object CMakeFiles/slop.dir/src/main.cpp.o
ninja: build stopped: subcommand failed.
Error: module slop: Child process exited with code 1