install yael on the ubuntu 12.04
1. bits/predefs.h no such file or directory ???
sudo apt-get install gcc-multilib
2. sudo gedit /etc/profile PATH=$PATH:/usr/local/MATLAB/R2012a/bin
source /etc/profile
3.ubuntu 切换gcc 版本
1)sudo apt-get install gcc-4.4 g++-4.4 g++-4.4-multilib gcc-4.4-multilib
2)
root@ubuntu:~# ls /usr/bin/gcc* -l
lrwxrwxrwx 1 root root 21 Sep 18 04:42 /usr/bin/gcc -> /etc/alternatives/gcc
-rwxr-xr-x 1 root root 224544 Apr 15 22:58 /usr/bin/gcc-4.4
-rwxr-xr-x 1 root root 306200 Apr 15 19:45 /usr/bin/gcc-4.6
root@ubuntu:~#update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.4 50
root@ubuntu:~#update-alternatives --install /usr/bin/g++ gcc /usr/bin/g++-4.4 50
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.6 100
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.6 100
3 ) sudo update-alternatives --config gcc
sudo update-alternatives --config g++
to choose the gcc and g++ current version that you need
4. lsb_release -a 查看系统的版本号
5. uname -a 查看系统是32位还是64位
6. /usr/bin/ld: i386:x86-64 architecture of input file `yael4matlab.a(kmeans.o)' is incompatible with i386 output
-m32 与 -m64之间的问题,需要根据自己platform的实际情况进行配置
7. install LAPACK and BLAS
1) sudo apt-get install liblapack-dev
2) download from the link http://www.netlib.org/blas/blas.tgz
$ cd $CLASSHG/codes/lapack
$ tar -zxf blas.tgz # creates BLAS subdirectory
$ cd BLAS
$ gfortran -O3 -c *.f
$ ar cr libblas.a *.o # creates libblas.a reference http://faculty.washington.edu/rjl/uwamath583s11/sphinx/_build/html/lapack_install.html
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