faust2: 2.20.2 -> unstable-2020-03-20 (#82650)

The latest release has a bug that makes it unable
to compile all of its own libraries:

https://github.com/grame-cncm/faust/issues/406

pkgs/applications/audio/faust/faust2.nix

@@ -20,13 +20,13 @@ with stdenv.lib.strings;
 
 let
 
-  version = "2.20.2";
+  version = "unstable-2020-03-20";
 
   src = fetchFromGitHub {
     owner = "grame-cncm";
     repo = "faust";
-    rev = version;
+    rev = "2782088d4485f1c572755f41e7a072b41cb7148a";
-    sha256 = "08hv8gyj6c83128z3si92r1ka5ckf9sdpn5jdnlhrqyzja4mrxsy";
+    sha256 = "1l7bi2mq10s5wm8g4cdipg8gndd478x897qv0h7nqi1s2q9nq99p";
     fetchSubmodules = true;
   };
 

pkgs/applications/audio/faust/faust2jaqt.nix

@@ -3,6 +3,7 @@
 , opencv
 , qt4
 , libsndfile
+, which
 }:
 
 faust.wrapWithBuildEnv {
@@ -19,6 +20,7 @@ faust.wrapWithBuildEnv {
     opencv
     qt4
     libsndfile
+    which
   ];
 
 }

pkgs/applications/audio/faust/faust2lv2.nix

@@ -2,6 +2,7 @@
 , faust
 , lv2
 , qt4
+, which
 
 }:
 
@@ -9,6 +10,6 @@ faust.wrapWithBuildEnv {
 
   baseName = "faust2lv2";
 
-  propagatedBuildInputs = [ boost lv2 qt4 ];
+  propagatedBuildInputs = [ boost lv2 qt4 which ];
 
 }

pkgs/applications/audio/magnetophonDSP/faustCompressors/default.nix

@@ -13,6 +13,8 @@ stdenv.mkDerivation rec {
   buildInputs = [ faust2jaqt faust2lv2 ];
 
   buildPhase = ''
+    echo "hack out autoComp.dsp due to https://github.com/grame-cncm/faust/407/issues "
+    rm autoComp.dsp
     for f in *.dsp;
     do
       echo "compiling standalone from" $f