今天跟着caffe项目的官网向导去安装caffe，前面安装依赖库的时候多次出现下载失败的情况，但是最后在早上再次安装依赖库，貌似每一句都安装成功了。可是到了编译的时候，显示着找不到blas相关字眼的错误信息。 于是我就通过brew这个包管理器去安装blas。
brew install blas
brew提示错误信息说找不到blas，但提供了相关的包
pro:~ honkee$ brew install blas
Error: No available formula with the name "blas"
==> Searching for similarly named formulae...
These similarly named formulae were found:
homebrew/science/blasr homebrew/science/rmblast
homebrew/science/blast homebrew/science/samblaster
homebrew/science/clblas liblas
homebrew/science/jblas liblastfm
homebrew/science/openblas (installed) mp3blaster
To install one of them, run (for example):
brew install homebrew/science/blasr
==> Searching taps...
This formula was found in a tap:
Caskroom/cask/blast2go
To install it, run:
brew install Caskroom/cask/blast2go
我选择了openblas
brew install openblas
安装完openblas之后，需要去修改Makefile.config文件
42 # BLAS choice:
43 # atlas for ATLAS (default)
44 # mkl for MKL
45 # open for OpenBlas
46 BLAS := open
53 # Homebrew puts openblas in a directory that is not on the standard search p ath
54 BLAS_INCLUDE := $(shell brew --prefix openblas)/include
55 BLAS_LIB := $(shell brew --prefix openblas)/lib
修改了这两处就可以去编译caffe了。 修改这两处的目的是让编译caffe的时候找到blas，还有说明我们用的是openblas。 如果没有说明我们用的是openblas会出现下述错误。
caffe ld: framework not found vecLib
如果没有说明我们的blas库安装地址，就会显示一些头文件包含错误，找不到blas之类的。
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