Mac上Cargo编译错误： failed to run custom build command for '*.*'

编译Rust的项目时候出现了错误：error: failed to run custom build command for croaring-sys v0.3.7process didn’t exit successfully: /Users/…/grin/target/release/build/croaring-sys-20d6d5c35e3a436a/build-script-build (exit code: 101)— stdoutTARGET = Some(“x86_64-apple-darwin”)OPT_LEVEL = Some(“3”)HOST = Some(“x86_64-apple-darwin”)CC_x86_64-apple-darwin = NoneCC_x86_64_apple_darwin = NoneHOST_CC = NoneCC = NoneCFLAGS_x86_64-apple-darwin = NoneCFLAGS_x86_64_apple_darwin = NoneHOST_CFLAGS = NoneCFLAGS = NoneDEBUG = Some(“false”)running: “cc” “-O3” “-ffunction-sections” “-fdata-sections” “-fPIC” “-m64” “-Wall” “-Wextra” “-std=c11” “-march=native” “-O3” “-o” “/Users/…/grin/target/release/build/croaring-sys-4f7af44253f571e8/out/CRoaring/roaring.o” “-c” “CRoaring/roaring.c"关键的错误信息是：error: unknown type name ‘uint64_t’ cargo:warning= uint64_t ri resident_size;原因是升级了Mac系统之后 C++ .h 不正确造成的。解决的方式，是删除clang相关的编译环境，并重新安装，首先删除头文件:rm -rf /usr/local/include/*再卸载LLVM相关的工具链brew uninstall llvm最后需要卸载掉Xcode命令行工具：rm -rf /Library/Developer/CommandLineTools卸载掉clang相关工具之后，再重新安装。安装Xcode命令行工具：xcode-select –install安装llvmbrew install –with-toolchain llvm重新编译正常。