search

google / souper

A superoptimizer for LLVM IR
Apache License 2.0
2.13k stars 169 forks source link

[seek help] fail to build dependencies at macOS #605

Closed jianguda closed 5 years ago

jianguda commented 5 years ago

Hey, I am following README.md to build souper locally, but fail at the very first step.

I run ./build_deps.sh and here is the last part of my build log:

[ 86%] Built target ir
[ 89%] Generating tools/alive_lexer.cpp
make[2]: RE2C-NOTFOUND: No such file or directory
make[2]: *** [tools/alive_lexer.cpp] Error 1
make[1]: *** [CMakeFiles/alive.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 91%] Linking CXX shared library libalive2.dylib
[ 91%] Built target alive2
make: *** [all] Error 2

Could you please give me some advice? Thanks!

jianguda commented 5 years ago

In case it helps: my LLC's version is 8.0.1 my GCC's version is 9.2.0 my CMake's version is 3.15.3

manasij7479 commented 5 years ago

Hi, you need to install re2c. If you use brew: https://brewformulas.org/Re2c You can also build and install it yourself: https://re2c.org/install/install.html

jianguda commented 5 years ago

Thanks! It works!