如何修复MacOSX上全局命名空间错误中没有成员的丢失时间？

Question

我正在尝试在Maverick 10.9上的命令行上编译一个项目.该项目在Linux上完美编译.显然,MacOSX上的ctime似乎存在问题.错误是

$ make
Compiling src//core/AbstractARAClient.cpp
In file included from src//core/AbstractARAClient.cpp:5:
In file included from include/AbstractARAClient.h:8:
In file included from include/ARAMacros.h:14:
In file included from include/Address.h:9:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/sstream:174:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ostream:131:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ios:216:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__locale:18:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/mutex:176:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__mutex_base:15:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/chrono:279:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ctime:56:9: error: no member named
      'clock_t' in the global namespace
using ::clock_t;
      ~~^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ctime:58:9: error: no member named
      'time_t' in the global namespace; did you mean 'size_t'?
using ::time_t;
      ~~^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.0/include/stddef.h:42:23: note: 
      'size_t' declared here
typedef __SIZE_TYPE__ size_t;

In file included from src//core/AbstractARAClient.cpp:5:
In file included from include/AbstractARAClient.h:8:
In file included from include/ARAMacros.h:14:
In file included from include/Address.h:9:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/sstream:174:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ostream:131:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ios:216:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__locale:18:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/mutex:176:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__mutex_base:15:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/chrono:279:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ctime:60:9: error: no member named
      'clock' in the global namespace
using ::clock;
      ~~^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ctime:61:9: error: no member named
      'difftime' in the global namespace
using ::difftime;
      ~~^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ctime:62:9: error: no member named
      'mktime' in the global namespace
using ::mktime;
      ~~^
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ctime:63:9: error: no member named
      'time' in the global namespace
using ::time;

我在网上搜索过,如果项目中有一个名为'time.h'的标题,就会出现问题(就像这个项目中的情况一样).ctime的实际不完整实现似乎也存在问题(但通常人们通过xcode引用安装命令行utils).

我想知道一般问题是什么,最后如何在mac上实际编译代码.相反,对于存储库中的代码,我在第53行的Makefile中添加了一个stdlib选项

CFLAGS_DEBUG = -g -Wall -stdlib=libc++

C++ 11选项已在Makefile的上一行中设置.

TIA

Answer 1

答案或多或少都很明显.该项目包含一个标题Time.h(和相应的类Time).不幸的是,MacOSX的文件系统是区分大小写的,这意味着这与现有的冲突time.h在/usr/include.

您可以#include <ctime>事先包含系统time.h(含义),Time.h也可以简单地将文件重命名为其他内容(例如MyTime.h).

Answer 2

检查/usr/local/include/time.h您的系统上是否存在，如果存在则将其删除。