Nettle 3.5.1 and OS X 10.12 patch

Jeffrey Walton noloader at
Sat Mar 28 06:52:05 CET 2020

Hi Everyone/Niels,

I've got a bare-bones Mac-mini without Xcode. It has CC Tools but that
is it. It is in a stock configuration.

When I attempt to run 'make check' nearly every test failed due to
missing libnettle and libhogweed. The libraries were present in .lib/,
but something was blowing away LD_LIBRARY_PATH and DYLD_LIBRARY_PATH.
My driver script set it, and the Nettle sources also set it after I
set it. But by the times the test runner scripts were run, they were
empty again (they were empty at the Makefile, before hitting the test

I know Apple did some hardening lately but I have not read anything
about scrubbing LD_LIBRARY_PATH and DYLD_LIBRARY_PATH. But it appears
something was sanitizing the environment.

Attached is the patch I needed for the issue on OS X 10.12. It also
tested good on Ubuntu 18.04 and Solaris 11.3. Earlier versions of OS
X, like OS X 10.9 and OS X 10.5, were OK. It was just OS X 10.12.

The short of it is, each test runner, like, needed to
restore the variables using an absolute path. dirname is Posix so it
is available to strip the unwanted path component, like testsuite/ or

+nettle_lib_dir=`dirname $PWD`/.lib


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