我一直在尝试在我的f12系统上安装lpng142。对我来说好像是个问题。就会得到这个错误

[root@localhost lpng142]# ./configure
bash: ./configure: /bin/sh^M: bad interpreter: No such file or directory
[root@localhost lpng142]# 

我怎么解决这个问题?/etc/fstab文件:

#
# /etc/fstab
# Created by anaconda on Wed May 26 18:12:05 2010
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/VolGroup-lv_root /                       ext4    defaults        1 1
UUID=ce67cf79-22c3-45d4-8374-bd0075617cc8 /boot                   ext4    
defaults        1 2
/dev/mapper/VolGroup-lv_swap swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0