将 brew installed openblas 链接到 /usr/local

Question

我安装了 R，然后安装 openblas - 但没有到 /usr/local :

==> openblas
openblas is keg-only, which means it was not symlinked into /usr/local,
because macOS provides BLAS and LAPACK in the Accelerate framework.

For compilers to find openblas you may need to set:
  export LDFLAGS="-L/usr/local/opt/openblas/lib"
  export CPPFLAGS="-I/usr/local/opt/openblas/include"

For pkg-config to find openblas you may need to set:
  export PKG_CONFIG_PATH="/usr/local/opt/openblas/lib/pkgconfig"

我对 openblas 的主要用例是 R 和 scipy。后者不再支持 Macos Accelerate 包：所以重定向到 brew 没有问题。无论如何，前者都会使用 brew：所以我认为这样做没有坏处。但是如何去做呢？

Answer 1

两个步骤完成了这项工作：

通过 brew 卸载 openblas:

brew uninstall --ignore-dependencies openblas
重新安装R

brew install R
手动创建符号 link 到 /usr/local :

sudo ln -s /usr/local/opt/openblas /usr/local

现在我们有 R !

$R

R version 3.6.1 (2019-07-05) -- "Action of the Toes"
Copyright (C) 2019 The R Foundation for Statistical Computing
Platform: x86_64-apple-darwin18.6.0 (64-bit)

 .. 

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将 brew installed openblas 链接到 /usr/local

Linking brew installed openblas to /usr/local

r

openblas