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我已經編寫了幾個C++函數用於通過Rcpp集成到R包中，並且這些函數在boost文件系統庫上進行回覆。我已經在SRC/Makevar指定這些：在R中使用外部共享庫
PKG_LIBS = -lboost_system -lboost_filesystem
和封裝編譯OK：
==> [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)
但是當我嘗試加載它，不順心的事：
> 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’
我在OSX 10.10，如果該事項。
R中使用外部共享庫的一般說明也非常受歡迎。
您能否澄清一下您的問題是否是：a）與Boost庫（本週我們剛剛回答）鏈接，或者b）鏈接到一組文件（默認情況下應該可用）或c）其他我不理解。 – 2014-11-01 15:06:14