为 Eclipse 添加 Boost for C++ - 包括路径问题
我在 Windows 开发、GNU 和 C++ 方面经验丰富，但对 Eclipse 还很陌生。我正在尝试将 Boost 添加到我的 Eclipse 项目中，该项目是使用 GNU 在 Windows 上构建的（但适用于嵌入式处理器）工具链。
我在这里添加了 Boost：C:\altera\10.1\quartus\bin\cygwin\usr\include\boost_1_46_1
我已将该目录添加到我的 Eclipse 包含路径中（项目属性 | C/C++ 常规 | 路径和符号 | 包含 | GNU C++），我看到 C:\altera\10.1\quartus\bin\cygwin\usr\include 显示为内置目录。
我可以在 Eclipse Project Explorer 下浏览这些目录和文件，并从 Outline 中打开它们。然而，当我将它们包括在内时，它不起作用。
我的代码包含以下内容：
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
Eclipse 生成的构建字符串如下所示（请注意缺少上面提到的两个目录）：
nios2-elf-gcc -xc++ -MP -MMD -c -I../NiosIITestSpin_bsp/UCOSII/inc -I../NiosIITestSpin_bsp/HAL/inc -I../NiosIITestSpin_bsp -I../NiosIITestSpin_bsp/drivers/inc -DSYSTEM_BUS_WIDTH=32 -pipe -D__hal__ -DALT_NO_INSTRUCTION_EMULATION -D__ucosii__ -O0 -g -Wall -EL -mhw-div -mcustom-fpu-cfg=60-1 -mhw-mul -mhw-mulx -o obj/Test.o Test.cpp
Test.cpp:12:41: warning: boost/property_tree/ptree.hpp: No such file or directory
Test.cpp:13:46: warning: boost/property_tree/xml_parser.hpp: No such file or directory
我清理、重新生成 makefile 并重建，但我无法让编译器看到这个新的包含目录。
如果我更改代码以包含完整路径，它会更进一步，它可以打开这些文件，但仍然无法打开它们包含的 Boost 文件。
我用谷歌搜索了 StackOverflow 和 Eclipse，但没有结果。有很多类似的问题，但没有一个是完全相同的或对我有用的。
有什么想法吗？
I'm experienced with Windows development, GNU, and C++, but I'm new to Eclipse. I'm trying to add Boost to my Eclipse project which is building on Windows (but for an embedded processor) with the GNU toolchain.
I have added Boost here: C:\altera\10.1\quartus\bin\cygwin\usr\include\boost_1_46_1
I have added that directory to my Eclipse include path (project Properties | C/C++ General | Paths and Symbols | Includes | GNU C++), where I see C:\altera\10.1\quartus\bin\cygwin\usr\include shows up as a built-in directory.
I can browse these directories and files under the Eclipse Project Explorer and open them up from the Outline. Yet, when I include them it doesn't work.
My code contains this:
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
The Eclipse generated build string looks like this (note the lack of the two directories mentioned above):
nios2-elf-gcc -xc++ -MP -MMD -c -I../NiosIITestSpin_bsp/UCOSII/inc -I../NiosIITestSpin_bsp/HAL/inc -I../NiosIITestSpin_bsp -I../NiosIITestSpin_bsp/drivers/inc -DSYSTEM_BUS_WIDTH=32 -pipe -D__hal__ -DALT_NO_INSTRUCTION_EMULATION -D__ucosii__ -O0 -g -Wall -EL -mhw-div -mcustom-fpu-cfg=60-1 -mhw-mul -mhw-mulx -o obj/Test.o Test.cpp
Test.cpp:12:41: warning: boost/property_tree/ptree.hpp: No such file or directory
Test.cpp:13:46: warning: boost/property_tree/xml_parser.hpp: No such file or directory
I clean, regen makefiles, and rebuild, but I can't get the compiler to see this new include directory.
If I change the code to include the full path, it gets a step further in that it can open those files, but it still can't open Boost files that they include.
I have googled and searched StackOverflow and Eclipse to no avail. There are lots of similar problems, but nothing that is quite the same or has worked for me.
Any ideas?
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尝试这样：
#include <>和 #include "" 的处理方式不同。第一个表示“系统”包含路径，而第二个表示“用户”包含路径。
Try it like this:
#include <> and #include "" are handled differently. The first one means a "system" include path while the second one is for a "user" include path.
我遇到了同样的问题并经历了同样的困难（甚至尝试了“”而不是<>）。事实证明这个解决方案确实有点愚蠢。它是一台windows机器；请记住，它们处理文件路径的方式不同。
来自原始帖子：
更改斜杠方向，使其显示为：
（编辑包含路径；在项目属性 | C/C++ 常规 | 路径和符号 | 包含 | GNU C++ 下）
这为我解决了问题。
I had the same problem and jumped through the same hoops (even tried the "" instead of the <>). The solution turned out to be really kind of silly. It is a windows machine; remember that they handle file paths differently.
From the original post:
Change the slash direction so that it reads:
(Edit the include path; under project Properties | C/C++ General | Paths and Symbols | Includes | GNU C++)
This solved the problem for me.