gistfile1.txt

building '/nix/store/9jppcd2iwc6wmfqf40dfyns90wz3sfd9-configured-ghcjs-src.drv'...
patching script interpreter paths in .
./test/runTravis.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./utils/updatePatches.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./utils/testPackages.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
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./utils/updateBootArchive.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./utils/cleanPackage.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./utils/boot: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./utils/cleanPackages.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./utils/updatePrimops.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./utils/makePackages.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./utils/makeSandbox.sh: interpreter directive changed from "/usr/bin/env bash" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/bash"
./ghc/validate: interpreter directive changed from "/bin/sh" to "/nix/store/v1sp0shp912cwz3h92rmpvpbsyshiq48-bash-4.4-p23/bin/sh"
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populating source tree by copying upstream files
booting GHC tree
Creating libraries/ghc-boot-th/ghc.mk
Creating libraries/xhtml/ghc.mk
Creating libraries/bytestring/ghc.mk
Creating libraries/parallel/ghc.mk
Creating libraries/template-haskell/ghc.mk
Creating libraries/array/ghc.mk
Creating libraries/filepath/ghc.mk
Creating libraries/integer-simple/ghc.mk
Creating libraries/ghc-heap/ghc.mk
Creating libraries/ghc-prim/ghc.mk
Creating libraries/stm/ghc.mk
Creating libraries/hpc/ghc.mk
Creating libraries/directory/ghc.mk
Creating libraries/time/ghc.mk
Creating libraries/haskeline/ghc.mk
Creating libraries/integer-gmp/ghc.mk
Creating libraries/Win32/ghc.mk
Creating libraries/terminfo/ghc.mk
Creating libraries/unix/ghc.mk
Creating libraries/transformers/ghc.mk
Creating libraries/Cabal/Cabal/ghc.mk
Creating libraries/deepseq/ghc.mk
Creating libraries/binary/ghc.mk
Creating libraries/mtl/ghc.mk
Creating libraries/pretty/ghc.mk
Creating libraries/containers/ghc.mk
Creating libraries/text/ghc.mk
Creating libraries/libiserv/ghc.mk
Creating libraries/ghc-boot/ghc.mk
Creating libraries/ghci/ghc.mk
Creating libraries/ghc-compact/ghc.mk
Creating libraries/base/ghc.mk
Creating libraries/process/ghc.mk
Creating libraries/parsec/ghc.mk
Booting .
Booting libraries/ghc-prim/
Booting libraries/directory/
Booting libraries/time/
Booting libraries/integer-gmp/
Booting libraries/terminfo/
Booting libraries/unix/
Booting libraries/base/
Booting libraries/process/

WARNING: You don't have a mk/build.mk file.

By default a standard GHC build will be done, which uses optimisation
and builds the profiling libraries. This will take a long time, so may
not be what you want if you are developing GHC or the libraries, rather
than simply building it to use it.

For information on creating a mk/build.mk file, please see:
    http://ghc.haskell.org/trac/ghc/wiki/Building/Using#Buildconfiguration

configuring GHC tree
checking for gfind... no
checking for find... /nix/store/2vi5scm77xixrgp6jp5j2xyg02zqhr1h-findutils-4.7.0/bin/find
checking for sort... /nix/store/ywh9sd47gs8m6r2gdlrg3240zc8lzqlz-coreutils-8.31/bin/sort
checking for GHC Git commit id... configure: WARNING: cannot determine snapshot revision: no .git directory and no 'GIT_COMMIT_ID' file
checking for ghc... /nix/store/w33daygg4j2gm8x6p8bs9zy7k9ql06qf-ghc-8.6.5/bin/ghc
checking version of ghc... 8.6.5
checking build system type... x86_64-apple-darwin19.0.0
checking host system type... x86_64-apple-darwin19.0.0
checking target system type... x86_64-apple-darwin19.0.0
Build platform inferred as: x86_64-apple-darwin
Host platform inferred as: x86_64-apple-darwin
Target platform inferred as: x86_64-apple-darwin
GHC build  : x86_64-apple-darwin
GHC host   : x86_64-apple-darwin
GHC target : x86_64-apple-darwin
LLVM target: x86_64-apple-darwin
checking for path to top of build tree... /System/Volumes/Data/opt/nix/store/58kxhs2cxswpn8pvw97gpiqj1k20ln5x-configured-ghcjs-src/ghc
checking for -windres... no
checking for windres... no
checking for -dllwrap... no
checking for dllwrap... no
checking for -objdump... no
checking for objdump... no
checking XCode version... ./configure: line 5201: xcodebuild: command not found
not found (too old?)
checking for gcc... gcc
checking whether the C compiler works... no
configure: error: in `/System/Volumes/Data/opt/nix/store/58kxhs2cxswpn8pvw97gpiqj1k20ln5x-configured-ghcjs-src/ghc':
configure: error: C compiler cannot create executables
See `config.log' for more details
builder for '/nix/store/9jppcd2iwc6wmfqf40dfyns90wz3sfd9-configured-ghcjs-src.drv' failed with exit code 77
cannot build derivation '/nix/store/pmgamaj3qh9wb3ykrg0xb6907s6k5062-ghcjs-8.6.0.1.drv': 1 dependencies couldn't be built
error: build of '/nix/store/azi9p0y5gwwizmid82zjbpkcxc2axm67-ghcjs-8.6.0.1-with-packages.drv', '/nix/store/pmgamaj3qh9wb3ykrg0xb6907s6k5062-ghcjs-8.6.0.1.drv' failed
make: *** [client] Error 100