From cba55fb3b19b1b8fd8a786ddb569e4a6866e1e63 Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Sun, 6 Aug 2017 22:06:11 +0200
Subject: Makefile: simplify

---
 Makefile | 56 +++++++++++++++-----------------------------------------
 1 file changed, 15 insertions(+), 41 deletions(-)

diff --git a/Makefile b/Makefile
index bf7ea23..d7ece7f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,47 +1,21 @@
-pname := hack
-nixpkgs := ${HOME}/src/nixpkgs
-
-configureFlags := -fdevelopment
-
-.PHONY: all build clean distclean configure run
-
-all: run
+.PHONY: _default
+_default: ghci
 
+.PHONY: clean
 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
+	@find * -type f \( -name \*.o -o -name \*.hi \) -exec rm -v \{\} \;
 
-# XXX result is a symlink we want to check
-MAKEFLAGS += -L
+.PHONY: ghci
+ghci: shell.nix
+	nix-shell --argstr compiler ghc801 --command 'exec ghci -Wall -fobject-code -isrc'
 
-build configure run: result
-	echo make $@ | result/bin/load-env-${pname}
+.PHONY: install
+install:
+	$(error to install run "make result && nix-env -i ./result")
 
-result: default.nix
-	nix-build $<
+.PHONY: result
+result: shell.nix
+	nix-build ./shell.nix
 
-endif
+shell.nix: $(wildcard *.cabal)
+	cabal2nix --shell . > $@
-- 
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