安装XML :: Parser需要expat.h

Question

我正在开发一个项目,需要将所有第三方(读取:CPAN)perl模块安装在perforce存储库中,这样任何依赖于它们的代码都可以成功运行,而无需其他人手动安装它们.我在尝试安装XML :: Parser时遇到了一个问题.我使用cpanminus来安装我的CPAN模块,所以我cpanm -L . XML::Parser在所需的目录中运行(之前已经使用过其他模块)并得到错误:

Expat.xs:12:19: error: expat.h: No such file or directory

我习惯使用Ubuntu和apt-get,但在工作中我必须使用RedHat,我不知道如何将expat安装到本地目录.我跑了yum search expat,得到了

expat.i386 : A library for parsing XML.
expat.x86_64 : A library for parsing XML.

所以我尝试yum install --installroot=. expat.i386了以下错误:

Loaded plugins: rhnplugin, security
error: cannot open Packages index using db3 - No such file or directory (2)
error: cannot open Packages database in ./var/lib/rpm
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 309, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 157, in main
    base.getOptionsConfig(args)
  File "/usr/share/yum-cli/cli.py", line 187, in getOptionsConfig
    self.conf
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 665, in <lambda>
    conf = property(fget=lambda self: self._getConfig(),
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 240, in _getConfig
    self._conf = config.readMainConfig(startupconf)
  File "/usr/lib/python2.4/site-packages/yum/config.py", line 804, in readMainConfig
    yumvars['releasever'] = _getsysver(startupconf.installroot, startupconf.distroverpkg)
  File "/usr/lib/python2.4/site-packages/yum/config.py", line 877, in _getsysver
    idx = ts.dbMatch('provides', distroverpkg)
TypeError: rpmdb open failed

我究竟做错了什么？此外,一旦我安装了expat,我不确定如何告诉cpanm在哪里找到它.

Answer 1

我看到了一些可以帮助你走上正确道路的事情.首先,调用所需的包expat-devel.此外,我认为您需要提供--installroot选项的绝对路径,并且您可能不需要向yum​​提供包扩展,除非这与您构建这些模块的方式相关(即,您通常可以只做yum install expat-devel).

看起来你的rpmdb可能有问题,因为你得到了"rpmdb open failed"消息.您可以运行yum check以查找rpmdb中的问题,但除此之外我不能说具体的包管理器.也许其他人可以在这方面提供更多帮助.