Rcpp 包不运行 R 3.6 MacOS Mojave。
我运行时出现以下错误
Library(Rcpp)
evalCpp("2 + 2")
输出是：
clang++ -std=gnu++11 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include" -I"/private/var/folders/h5/r7lh__p16wx7cg_5pzknfg5w0000gn/T/Rtmpz3QxlQ/sourceCpp-x86_64-apple-darwin15.6.0-1.0.1" -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fPIC -Wall -g -O2 -c file7d712a4a950.cpp -o file7d712a4a950.o
Error in sourceCpp(code = code, env = env, rebuild = rebuild, cacheDir = cacheDir, :
Error 1 occurred building shared library.
clang: warning: no such sysroot directory: '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk' [-Wmissing-sysroot]
In file included from file7d712a4a950.cpp:1:
In file included from /Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include/Rcpp.h:27:
In file included from /Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include/RcppCommon.h:29:
In file included from /Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include/Rcpp/r/headers.h:59:
In file included from /Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include/Rcpp/platform/compiler.h:100:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/cmath:305:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/math.h:301:15: fatal error: 'math.h' file not found
#include_next <math.h>
^~~~~~~~
1 error generated.
make: *** [file7d712a4a950.o] Error 1