问题描述
我得到了RInside的例子来运行和工作，但我不得不手动添加链接器选项：
-F / Library / Frameworks / R.framework / .. -framework R在Mac Snow Leopard 10.6.8上使用Xcode 3.x）。它有效，但我不知道为什么。任何人都可以说这些选项
实际上做了什么？我无法在此列表中找到它：
以下是原始代码：
#include< RInside.h> //通过RInside为嵌入式R
int main（int argc，char * argv []）
{
RInside R（argc，argv）; //创建嵌入式R实例
R [txt] =Hello，world！\\\
; //将一个char *（字符串）赋给'txt'
R.parseEvalQ（cat（txt））; // eval init字符串，忽略任何返回
exit（0）;
}
这是我在NetBeans中看到的链接器调用：
$ b g ++ -o dist / Debug / GNU-MacOSX / callingrproject build / Debug / GNU-MacOSX / main.o - L / Library / Frameworks / R.framework / Resources / lib -L /Library/Frameworks/R.framework/Resources/library/Rcpp/lib -L / Library / Frameworks / R.framework / Resources / library / RInside / lib -L / Library / Frameworks / R.framework / Libraries -L / Library /Frameworks/R.framework/Resources/lib -L / Library / Frameworks / R.framework / Resources / library -L / Library / Frameworks / R.framework / Resources / modules -lRcpp -lRInside -lRlapack -lRblas -F / Library /Frameworks/R.framework/ .. -framework R
最后一部分是我必须手动添加的内容。没有这些，我得到了这两个连接错误：
pre $ 未定义的符号：
_Rf_mkString，引用自：
main.o中的Rcpp :: wrap（char const *）
_R_NilValue，引用自：
main.o中的Rcpp :: wrap（char const *）
框架或多或少地是Mac打包应用程序的方式。这些应用程序可能包含我们想要使用的代码+头文件+库。该行
-F / Library / Frameworks / R.framework / ..
说，查看文件夹 / Library / Frameworks 获取指定的任何框架，和
-framework R
表示，在'框架'目录集中寻找文件夹 R.framework 。
请注意， 特别是，在Mac上，它们位于（默认情况下）为 有关的更多信息，请点击这里以及。 I got the RInside example to run and work but I had to manually add the linker option:"-F/Library/Frameworks/R.framework/.. -framework R" at the end for g++ (on Mac Snow Leopard 10.6.8 with Xcode 3.x). It works, but I don't know why. Can anyone say what these optionsactually do ? I could not find it on this list: http://gcc.gnu.org/onlinedocs/gcc/Link-Options.html Here is the original code: Here is the linker call as I saw it in NetBeans: g++ -o dist/Debug/GNU-MacOSX/callingrproject build/Debug/GNU-MacOSX/main.o - L/Library/Frameworks/R.framework/Resources/lib -L/Library/Frameworks/R.framework/Resources/library/Rcpp/lib -L/Library/Frameworks/R.framework/Resources/library/RInside/lib -L/Library/Frameworks/R.framework/Libraries -L/Library/Frameworks/R.framework/Resources/lib -L/Library/Frameworks/R.framework/Resources/library -L/Library/Frameworks/R.framework/Resources/modules -lRcpp -lRInside -lRlapack -lRblas -F/Library/Frameworks/R.framework/.. -framework R The last part is what I had to add manually. Without that I got these two linkage errors: Frameworks are, more or less, a Mac way of packaging applications. These applications might contain code + headers + libraries we want to use. The line says, "look in the folder says, "look for the folder Note that the In particular, on Mac, they are located (by default) as More information is available here for the -F argument and for the -framework argument. 这篇关于获取RInside示例以使用额外的链接器选项 - 框架的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ -framework R 参数实际上由 ld 处理，而不是 gcc / clang ，因此您可以在 man ld 中找到更多信息。另一方面， -F 参数由 gcc / <$处理C $ C>铛。它们一起允许您的编译器和链接器查找所需的头文件和库。
/Library/Frameworks/R.framework/Headers 和 /Library/Frameworks/R.framework/Libraries - 这些是通过设置适当的框架标记搜索的目录。
#include <RInside.h> // for the embedded R via RInside
int main(int argc, char *argv[])
{
RInside R(argc, argv); // create an embedded R instance
R["txt"] = "Hello, world!\n"; // assign a char* (string) to 'txt'
R.parseEvalQ("cat(txt)"); // eval the init string, ignoring any returns
exit(0);
}
Undefined symbols:
"_Rf_mkString", referenced from:
Rcpp::wrap(char const*)in main.o
"_R_NilValue", referenced from:
Rcpp::wrap(char const*)in main.o
-F/Library/Frameworks/R.framework/..
/Library/Frameworks for any frameworks that get specified", and-framework R
R.framework in the set of 'frameworks' directories".-framework R argument is actually handled by ld, not gcc/clang, so you would find more information in man ld. The -F argument, on the other hand, is handled by gcc/clang. Together, they allow your compiler and linker to find headers and libraries needed. /Library/Frameworks/R.framework/Headers and /Library/Frameworks/R.framework/Libraries -- these are the directories scoured by setting the appropriate framework flags.