ifcxt-0.1.1 doesn't build with GHC 8.*

[Chris Warburton]

On "unstable":

<5>building path(s) ââ?¬Ë?/nix/store/znrxhrwk4bb565rz5d7xrjq6v2k6xwwg-ifcxt-0.1.1ââ?¬â?¢
setupCompilerEnvironmentPhase
Build with /nix/store/hg0ppf88q1rw0q7x3zqhlxbnviq0ddcg-ghc-8.0.2.
unpacking sources
unpacking source archive /nix/store/74skf4jmigm69scg2m6j5xqp0fz03f2r-44zw23qk0a6ih5r2jjs7xq1c1c9axmqs-nixedHsPkg
source root is 44zw23qk0a6ih5r2jjs7xq1c1c9axmqs-nixedHsPkg
patching sources
compileBuildDriverPhase
setupCompileFlags: -package-db=/tmp/nix-build-ifcxt-0.1.1.drv-0/package.conf.d -j1 -threaded
[1 of 1] Compiling Main             ( Setup.hs, /tmp/nix-build-ifcxt-0.1.1.drv-0/Main.o )
Linking Setup ...
configuring
configureFlags: --verbose --prefix=/nix/store/znrxhrwk4bb565rz5d7xrjq6v2k6xwwg-ifcxt-0.1.1 --libdir=$prefix/lib/$compiler --libsubdir=$pkgid --with-gcc=gcc --package-db=/tmp/nix-build-ifcxt-0.1.1.drv-0/package.conf.d --ghc-option=-optl=-Wl,-rpath=/nix/store/znrxhrwk4bb565rz5d7xrjq6v2k6xwwg-ifcxt-0.1.1/lib/ghc-8.0.2/ifcxt-0.1.1 --ghc-option=-j1 --disable-split-objs --disable-library-profiling --disable-profiling --enable-shared --disable-coverage --enable-library-vanilla --enable-executable-dynamic --enable-tests --ghc-option=-split-sections
Configuring ifcxt-0.1.1...
Setup: Encountered missing dependencies:
base ==4.8.*, template-haskell ==2.10.*
<3>builder for ââ?¬Ë?/nix/store/blwrn051syc6fpixlfrbknkiyfa1b1pn-ifcxt-0.1.1.drvââ?¬â?¢ failed with exit code 1