pname := hack
nixpkgs := ${HOME}/src/nixpkgs

configureFlags := -fdevelopment

.PHONY: all build clean distclean configure run

all: run

clean:
	cabal clean

distclean: clean
	rm -f result
	rm -fR log

ifeq (${NIX_MYENV_NAME},${pname})

build:
	cabal build ${pname}

configure:
	cabal configure ${configureFlags}

run: build
	mkdir -p log
	dist/build/${pname}/${pname}

else
#
# setup development environment (and rerun make)
#

ifdef nixpkgs
export NIX_PATH := nixpkgs=${nixpkgs}
endif

# XXX result is a symlink we want to check
MAKEFLAGS += -L

build configure run: result
	echo make $@ | result/bin/load-env-${pname}

result: default.nix
	nix-build $<

endif