android - MAKE for Android 操作系统源代码失败

Question

我正在尝试为 Android 构建自定义 ROM。目前，我已经设置了构建环境并下载了源代码。

我正在按照 https://source.android.com/source/building#build-the-code 中的说明进行操作

在执行 source build/envsetup.sh 和 lunch 时一切正常，但在执行 make 时出现错误:

external/libcxx/include/cmath:679:9: note: using declaration
using ::acos;
        ^
external/libcxx/include/cmath:684:46: error: declaration conflicts with target of using declaration already in scope
inline _LIBCPP_INLINE_VISIBILITY long double acos(long double __lcpp_x) _NOEXCEPT {return acosl(__lcpp_x);}
                                             ^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/math.h:708:46: note: target of using declaration
inline _LIBCPP_INLINE_VISIBILITY long double acos(long double __lcpp_x) _NOEXCEPT {return ::acosl(__lcpp_x);}
                                             ^
external/libcxx/include/cmath:679:9: note: using declaration
using ::acos;
        ^
external/libcxx/include/cmath:690:1: error: declaration conflicts with target of using declaration already in scope
acos(_A1 __lcpp_x) _NOEXCEPT {return acos((double)__lcpp_x);}
^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/math.h:714:1: note: target of using declaration
acos(_A1 __lcpp_x) _NOEXCEPT {return ::acos((double)__lcpp_x);}

fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
[  0% 163/43987] host C++: libprotobuf-cpp-full_32 <= external/protobuf/src/google/protobuf/descriptor.cc
ninja: build stopped: subcommand failed.
make: *** [ninja_wrapper] Error 1

#### make failed to build some targets (27 seconds) ####

Answer 1

看来是xcode 9引起的，见https://forums.developer.apple.com/thread/87814 .我也遇到了这个问题。我打算切换到 xcode 8.3。我用 xcode 8.3 和 sdk 10.11 编译了 android 7.1.2，没问题，没问题。