[Nix-dev] Completely stumped upgrading on Mac

[Michael Sperber]

Hi there,

after a few months, I've been trying to upgrade Nix, which I usually run
off git master.  This time, it told me I need to reinstall.  When I do
that, installing the first additional package gets me:

> nix-env -i hello
installing ‘hello-2.10’
these derivations will be built:
  /nix/store/ravvr6f5vg02l7y77fdqlgiimy2jcr0i-hello-2.10.drv
building path(s) ‘/nix/store/m14c8f4skkwi9z27yhljb3vxh6sl2jbb-hello-2.10’
unpacking sources
unpacking source archive /nix/store/3x7dwzq014bblazs7kq20p9hyzz0qh8g-hello-2.10.tar.gz
source root is hello-2.10
patching sources
configuring
configure flags: --disable-dependency-tracking --prefix=/nix/store/m14c8f4skkwi9z27yhljb3vxh6sl2jbb-hello-2.10
checking for a BSD-compatible install... /nix/store/mwmy1mbp31rqr483qpwwfljgg5cfnphq-coreutils-8.24/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /nix/store/mwmy1mbp31rqr483qpwwfljgg5cfnphq-coreutils-8.24/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for gcc... clang
checking whether the C compiler works... no
configure: error: in `/private/var/folders/h4/fvbhbrsj3t3dzv4986t4rrxw000266/T/nix-build-hello-2.10.drv-1/hello-2.10':
configure: error: C compiler cannot create executables
See `config.log' for more details
builder for ‘/nix/store/ravvr6f5vg02l7y77fdqlgiimy2jcr0i-hello-2.10.drv’ failed with exit code 77
error: build of ‘/nix/store/ravvr6f5vg02l7y77fdqlgiimy2jcr0i-hello-2.10.drv’ failed

Trying to switch to git master and trying to do the same there quickly
gets me to:

downloading ‘https://dl.dropboxusercontent.com/u/2857322/bootstrap-tools.9.cpio.bz2’...
error: unable to download ‘https://dl.dropboxusercontent.com/u/2857322/bootstrap-tools.9.cpio.bz2’: Problem with the SSL CA cert (path? access rights?) (77)

Any help would be much appreciated!

-- 
Regards,
Mike