什么/哪里是 ~/.R/Makevars/. 文件？

Question

我正在尝试安装包 glmnet。我收到此错误：

ld: warning: directory not found for option '-L/usr/local/gfortran/lib/gcc/x86_64-apple-darwin15/6.1.0'
ld: warning: directory not found for option '-L/usr/local/gfortran/lib'
ld: library not found for -lgfortran

我安装了自制软件。然后通过 gcc fortran 达到这个目的。我找到了很多帮助链接，上面写着类似的东西：

“您需要使用以下命令将 ~/.R/Makevars/ 中的编译语句更改为 gcc：

VER=-5.3.0 
CC=gcc$(VER)
CXX=g++$(VER)
CFLAGS=-mtune=native -g -O2 -Wall -pedantic -Wconversion
CXXFLAGS=-mtune=native -g -O2 -Wall -pedantic -Wconversion
FLIBS=-L/usr/local/Cellar/gcc/5.3.0/lib/gcc/5

我在 Mac 上找不到 ~/.R/Makevars/ ！！我有 macOS Catalina 10.15.1。

我找到了两个 Makevars 文件。它们与 Rcpp 相关联，并且与上面列出的代码完全不同。

抱歉，这个看似基本的问题，但两个小时后，我找不到与 ~/.R/Makevars/ 相关的任何内容

这是我找到的一个文件的状态：

## With R 3.1.0 or later, you can uncomment the following line to tell R to 
## enable compilation with C++11 (where available)
##
## Also, OpenMP support in Armadillo prefers C++11 support. However, for wider
## availability of the package we do not yet enforce this here.  It is however
## recommended for client packages to set it.
##
## And with R 3.4.0, and RcppArmadillo 0.7.960.*, we turn C++11 on as OpenMP
## support within Armadillo prefers / requires it
CXX_STD = CXX11

PKG_CXXFLAGS = $(SHLIB_OPENMP_CXXFLAGS) 
PKG_LIBS = $(SHLIB_OPENMP_CXXFLAGS) $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)

但这与 RcppArmadillo 有关。

我已经多次阅读这些（更多）：https : //cran.r-project.org/bin/macosx/RMacOSX-FAQ.html#Installation-of-source-packages

Mac OS XR 错误“ld：警告：找不到选项的目录”

https://cran.r-project.org/doc/manuals/r-release/R-admin.html#Clang

https://nistara.net/post/compile-issues-r/

Answer 1

1. 创建文件夹/Users/YOURNAME/.R
2. 创建文本文件/Users/YOURNAME/.R/Makevars
3. 将其放入该文件中：

FC      = /usr/local/opt/gcc/bin/gfortran
F77     = /usr/local/opt/gcc/bin/gfortran
FLIBS   = -L/usr/local/opt/gcc/lib