From mboxrd@z Thu Jan  1 00:00:00 1970
From: Danny Milosavljevic <dannym@scratchpost.org>
Subject: bug#26136: core-updates: python-minimal@2.7.13 fails due to missing
	zlib
Date: Sat, 18 Mar 2017 21:50:57 +0100
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References: <20170317014622.GA27842@jasmine>
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To: Leo Famulari <leo@famulari.name>
Cc: 26136@debbugs.gnu.org

Setting the environment variables

  CPPFLAGS="-I/gnu/store/y8c62fyb2x4g4qnl54pmlmid1fn8k3mx-zlib-1.2.8/include"
  LDFLAGS="-L/gnu/store/y8c62fyb2x4g4qnl54pmlmid1fn8k3mx-zlib-1.2.8/lib"

before running configure makes it work.

(I've also printed inc_dirs in setup.py without that - and zlib didn't appear)

So I guess the general question is how does Python set up inc_dirs ?

And is it normal that C_INCLUDE_PATH and LIBRARY_PATH doesn't contain zlib ? Apparently, since guix-master python2-minimal 2.7.12 doesn't contain it either -  and that one works...

So where would it get the other entries?