屑俺日記

☆ pacman(8)で遊ぶ

なんとなくArchLinux。こちらには まだpacman(6)はないかも。

$ pacman -Si bc
Repository      : extra
Name            : bc
Version         : 1.07.1-1
Description     : An arbitrary precision calculator language
Architecture    : x86_64
URL             : https://www.gnu.org/software/bc/
Licenses        : GPL
Groups          : None
Provides        : None
Depends On      : readline
Optional Deps   : None
Conflicts With  : bc-readline
Replaces        : bc-readline
Download Size   : 83.00 KiB
Installed Size  : 166.00 KiB
Packager        : Antonio Rojas 
Build Date      : Sun 16 Apr 2017 05:44:47 AM JST
Validated By    : MD5 Sum  SHA-256 Sum  Signature

$ pactree bc         
bc                  
└─readline          
  ├─glibc           
  │ ├─linux-api-headers                 
  │ ├─tzdata        
  │ └─filesystem    
  │   └─iana-etc    
  ├─ncurses         
  │ ├─glibc         
  │ └─gcc-libs      
  │   └─glibc       
  └─ncurses provides libncursesw.so     

☆ Arch自体のことも少しは

$ uname -a
Linux $HOSTNAME 4.11.9-1-ARCH #1 SMP PREEMPT \
Wed Jul 5 18:23:08 CEST 2017 x86_64 GNU/Linux

$ ldd `which factor`
        linux-vdso.so.1 (0x00007ffe883e8000)
        libgmp.so.10 => /usr/lib/libgmp.so.10 (0x00007ff6d1e0a000)
        libc.so.6 => /usr/lib/libc.so.6 (0x00007ff6d1a65000)
        /lib64/ld-linux-x86-64.so.2 (0x00007ff6d209d000)

2^127-1より大きい数がデフォルトで扱えると。