/home/adam/scratch/zlib-ng/test/benchmarks/benchmark_compress.cc: In member function ‘void compress::Bench(benchmark::State&)’:
/home/adam/scratch/zlib-ng/test/benchmarks/benchmark_compress.cc:49:84: error: invalid cast to abstract class type ‘compress’
   49 |             err = PREFIX(compress)(outbuff, &maxlen, inbuff, (size_t)state.range(0));
      |                                                                                    ^
/home/adam/scratch/zlib-ng/test/benchmarks/benchmark_compress.cc:22:7: note:   because the following virtual functions are pure within ‘compress’:
   22 | class compress: public benchmark::Fixture {
      |       ^~~~~~~~
In file included from /home/adam/scratch/zlib-ng/test/benchmarks/benchmark_compress.cc:8:
  /* benchmark_compress.cc -- benchmark compress()
/usr/include/benchmark/benchmark.h:1436:16: note:     ‘virtual void benchmark::Fixture::BenchmarkCase(benchmark::State&)’
 1436 |   virtual void BenchmarkCase(State&) = 0;
      |                ^~~~~~~~~~~~~
make[2]: *** [test/benchmarks/CMakeFiles/benchmark_zlib.dir/build.make:132: test/benchmarks/CMakeFiles/benchmark_zlib.dir/benchmark_compress.cc.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:425: test/benchmarks/CMakeFiles/benchmark_zlib.dir/all] Error 2
make: *** [Makefile:166: all] Error 2