Question

我已经编写了一些c ++函数，用于通过Rcpp集成到R包中，这些函数在boost文件系统库上进行回复。我在src / Makevar中指定了这些：

PKG_LIBS = -lboost_system -lboost_filesystem

包裹编译好了：

==＆GT; R CMD INSTALL --preclean --no-multiarch --with-keep.source txtutils2

clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c RcppExports.cpp -o RcppExports.o
* installing to library ‘/Library/Frameworks/R.framework/Versions/3.1/Resources/library’
* installing *source* package ‘txtutils2’ ...
** libs
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c bedcollc.cpp -o bedcollc.o
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c bedcollr.cpp -o bedcollr.o
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c countlines.cpp -o countlines.o
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c fileSize.cpp -o fileSize.o
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c ncols.cpp -o ncols.o
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c printlines.cpp -o printlines.o
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c readbed.cpp -o readbed.o
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c readcol.cpp -o readcol.o
clang++ -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I/usr/local/include/freetype2 -I/opt/X11/include -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.1/Resources/library/RcppArmadillo/include"   -fPIC  -std=c++11 -c readcols.cpp -o readcols.o
clang++ -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/usr/local/lib -o txtutils2.so RcppExports.o bedcollc.o bedcollr.o countlines.o fileSize.o ncols.o printlines.o readbed.o readcol.o readcols.o -lboost_system -lboost_filesystem -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
installing to /Library/Frameworks/R.framework/Versions/3.1/Resources/library/txtutils2/libs
** R
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded
* DONE (txtutils2)

但是当我尝试加载它时，出现了问题：

> library(txtutils2)
Error in dyn.load(file, DLLpath = DLLpath, ...) :
  unable to load shared object '/Library/Frameworks/R.framework/Versions/3.1/Resources/library/txtutils2/libs/txtutils2.so':
  dlopen(/Library/Frameworks/R.framework/Versions/3.1/Resources/library/txtutils2/libs/txtutils2.so, 6): Library not loaded: libboost_system.dylib
  Referenced from: /Library/Frameworks/R.framework/Versions/3.1/Resources/library/txtutils2/libs/txtutils2.so
  Reason: image not found
Error: package or namespace load failed for ‘txtutils2’

我正在使用osx 10.10，如果重要的话。

在R中使用外部共享库的一般说明也是最受欢迎的。

Answer 1

据我所知，你遇到的不是Rcpp的问题，即使不是R的问题。它可能是关于OSX上的链接。

我不使用Mac，所以我只是给你一些建议。尝试

otool -L yourpackagename.so

您应该会看到指向您使用的boost库的链接。您需要检查路径是否正确。

在R中使用外部共享库

1 个答案: