make -C ..  CC=cc EXE=Schoenemann-61F87EFA
make[1]: 进入目录“/tmp/tmp6dkwl4x3/Schoenemann/Schoenemann-tmp”
cd Schoenemann && clang++ -Wall -O3 -std=c++20 schoenemann.cpp search.cpp timeman.cpp helper.cpp tt.cpp main.cpp moveorder.cpp see.cpp tune.cpp tuneconsts.cpp datagen.cpp -o ../src/Schoenemann-61F87EFA
/bin/sh: clang++: 未找到命令
make[1]: *** [Makefile:13：all] 错误 127
make[1]: 离开目录“/tmp/tmp6dkwl4x3/Schoenemann/Schoenemann-tmp”
make: *** [Makefile:2：all] 错误 2