Some minor changes

acprep

@@ -1,10 +1,7 @@
 #!/usr/bin/env python
 
-# acprep, version 3.0
+# acprep, version 3.1
 #
-# This script configures my ledger source tree on my Mac OS/X machine.  This
-# is not necessary, however, since I keep all the files necessary for building
-# checked in to the source tree.  Users can just type './configure && make'.
 # This script simply sets up the compiler and linker flags for all the various
 # build permutations I use for testing and profiling.
 
@@ -802,7 +799,7 @@ class PrepareBuild(CommandLineApp):
                     conf_args.append('-DCMAKE_CXX_FLAGS=%s' %
                                      self.envvars[var])
                 elif var == 'LDFLAGS':
-                    conf_args.append('-DCMAKE_EXE_LINKER_FLAGS=%s' % 
+                    conf_args.append('-DCMAKE_EXE_LINKER_FLAGS=%s' %
                                      self.envvars[var])
 
         if self.options.boost_root:
@@ -895,7 +892,7 @@ class PrepareBuild(CommandLineApp):
             self.log.debug('Changing directory to ' + build_dir)
             os.chdir(build_dir)
 
-            self.execute(*(['ninja' if self.options.use_ninja else 'make'] + 
+            self.execute(*(['ninja' if self.options.use_ninja else 'make'] +
                            make_args))
         finally:
             os.chdir(self.source_dir)

default.nix

@@ -7,8 +7,7 @@ in
 
 stdenv.mkDerivation {
   name = "ledger-3.1.0.${rev}";
-
-  src = ./.;
+  src = builtins.filterSource (path: type: type != "unknown") ./.;
 
   buildInputs = [ cmake boost gmp mpfr libedit python texinfo gnused ];
 
@@ -18,7 +17,12 @@ stdenv.mkDerivation {
   # broken in ledger...
   postInstall = ''
     mkdir -p $out/share/emacs/site-lisp/
-    cp -v $src/lisp/*.el $out/share/emacs/site-lisp/
+    cp -v "$src/lisp/"*.el $out/share/emacs/site-lisp/
+  '' + stdenv.lib.optionalString stdenv.isDarwin ''
+    for i in date_time filesystem system iostreams regex unit_test_framework; do
+      boostlib=libboost_''$i.dylib
+      install_name_tool -change ''$boostlib ${boost}/lib/''$boostlib $out/bin/ledger
+    done
   '';
 
   meta = {