This is where you have to start doing some detective work and probably some patching!

Based on what you pasted, it looks as if CONFIG_SHELL isn't getting passed to the mkmakemod.sh file.
Probably the zsh devs have done something wierd.

What I do at this stage is to build with the -K flag, then you can manually enter the build directory which
guix places in /tmp/nix-build-* and start putting in diagnostics and running the build manually to find out
what is going on.

Sometimes it can be painful.

J'


On Sat, Jan 04, 2014 at 04:21:35PM -0500, Kete wrote:
     On Saturday, January 04, 2014 08:15:40 AM John Darrington wrote:
     > The example in bash.scm is over complicated.  Look at some of the examples
     > in xorg.scm to see how to set configure-flags.
     
     That got me a little further.
     	Src/../Src/mkmakemod.sh: line 467: /bin/sh: No such file or directory
     	Makefile:299: recipe for target 'Makemod' failed
     These are the lines around 464-470:
     	if $second_stage ; then
     	    trap "rm -f $the_subdir/${the_makefile}; exit 1" 1 2 15
     
     	    ${CONFIG_SHELL-/bin/sh} ./config.status \
     		--file=$the_subdir/${the_makefile}:$the_subdir/${the_makefile}.in ||
     	    exit 1
     	fi
     I tried with the --without-tcsetpgrp flag, but I got the same error.

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