[Bug 581319] Re: debuild fails if GREP_OPTIONS are set in environment

[Andreas Roth]

You're right it is the same issue. 
I run the debuild from the package directory which any arguments and debuild immediately terminates with the error (on ubuntu precise):
debuild: fatal error at line 640:
don't understand dpkg-parsechangelog output: (standard input):1:Source: pkgname

I noticed that the options '-Hn' to grep are the cause of the problem.
Only using the '--color=auto' option does not hurt at all.

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https://bugs.launchpad.net/bugs/581319

Title:
  debuild fails if GREP_OPTIONS are set in environment

Status in “devscripts” package in Ubuntu:
  New

Bug description:
  Binary package hint: devscripts

  devscripts: version 2.10.61ubuntu5

  On my PC i set the GREP_OPTIONS environment variable in .bashrc:
  export GREP_OPTIONS='-Hn --color=auto'

  When the GREP_OPTIONS are set, debuild will fails with the following line:
  debuild: fatal error at line 643:
  don't understand dpkg-parsechangelog output: (standard input):1:Source: pkgname

  I recommend to reset all GREP environment variables to an emtpy string
  (default), to ensure that grep is working as expected within the
  devscripts.

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