Error: rbenv 설치 오류

Message

미친 왜 오류나나 보는데 별 오류날 건덕지도 없어 보인다. 의존성 설치하라는거 다 설치했고

rbenv install 2.3.3
Downloading ruby-2.3.3.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.3/ruby-2.3.3.tar.bz2
Installing ruby-2.3.3...

BUILD FAILED (Ubuntu 17.10 using ruby-build 20171226-3-g01e7b7b)

Inspect or clean up the working tree at /tmp/ruby-build.20180222140444.23312
Results logged to /tmp/ruby-build.20180222140444.23312.log

Last 10 log lines:
checking for ruby... /usr/bin/ruby
config.guess already exists
config.sub already exists
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking target system type... x86_64-pc-linux-gnu
checking whether the C compiler works... no
configure: error: in `/tmp/ruby-build.20180222140444.23312/ruby-2.3.3':
configure: error: C compiler cannot create executables
See `config.log' for more details
cat /tmp/ruby-build.20180222140444.23312.log
/tmp/ruby-build.20180222140444.23312 ~/.rbenv/plugins/ruby-build
/tmp/ruby-build.20180222140444.23312/ruby-2.3.3 /tmp/ruby-build.20180222140444.23312 ~/.rbenv/plugins/ruby-build
checking for ruby... /usr/bin/ruby
config.guess already exists
config.sub already exists
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking target system type... x86_64-pc-linux-gnu
checking whether the C compiler works... no
configure: error: in `/tmp/ruby-build.20180222140444.23312/ruby-2.3.3':
configure: error: C compiler cannot create executables
See `config.log' for more details

해결

rbenv의 버그라고 봐야할 것 같다.

우분투 최신버전이라 GCC7이 기본으로 설정되어 있는데

이걸로 빌드하면 오류가 나는 것 같다.

gcc-4.8을 강제 지정해서 해결

$ CC=/usr/bin/gcc-4.8 rbenv install 2.3.3

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