构建C ++应用程序时,OSX系统包含文件的默认路径是什么? [英] What is the default path for OSX system include files when building a C++ application?
问题描述
我在命令行(使用 make
和开源库(Xerces 2.8))构建一个C ++应用程序。其中一个文件包括OSX系统文件,
I am building a C++ application at the command line (using make
with an open-source library (Xerces 2.8)). One of the files includes an OSX system file,
#include <TextUtils.h>
当我键入 make -n
用于编译给定文件的命令,没有包含提供的系统框架文件的路径。因此,我假设在OSX上gcc编译器查找系统包含文件的默认位置。
When I type make -n
to determine the command used to compile the given file, there is no include path for the system framework files provided. Therefore, I assume that on OSX the gcc compiler looks in a default location for system include files.
我想知道这个位置是什么。当我搜索 TextUtils.h
时,我看到不同位置的文件的许多版本,包括可能是默认位置的几个不同的可能候选。
I would like to know what this location is. When I search for TextUtils.h
, I see many versions of the file in different locations, including a few different possible candidates for what might be a default location.
如何确定系统对系统包含文件使用的默认路径?
How can I determine the default path the system uses for system include files?
推荐答案
执行以下命令
# echo "" | gcc -xc - -v -E
将输出gcc的buildin配置,其中默认包括。
will output the buildin configuration of gcc among which are the default includes.
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