我想在我的MacOS Sierra系统上编译一个C库,但是我收到以下错误：
checking for a BSD-compatible install... /usr/local/bin/ginstall -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /usr/local/bin/gmkdir -p checking for gawk... no checking for mawk... no checking for nawk... no checking for awk... awk checking whether make sets $(MAKE)... yes checking whether make supports nested variables... yes checking for gcc... clang checking whether the C compiler works... no configure: error: in `/Users/macuser/Downloads/libr': configure: error: C compiler cannot create executables
我尝试按照OS X 10.9.2: checking whether the C compiler works… no中的建议设置符号链接：
sudo ln -s /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/ /Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.11.xctoolchain
我尝试设置CC路径并安装xcode,如https://apple.stackexchange.com/questions/216573/cant-compile-source-code-on-mac所示：
export CC=clang xcode-select --install
并接受许可.但没有任何效果.是否有任何新的步骤要考虑Sierra以使命令行工具正常运行？