Add saiph experiments

bsc/mcxx/default.nix

@@ -1,5 +1,4 @@
 { stdenv
-, fetchgit
 , autoreconfHook
 , nanos6
 , gperf
@@ -13,9 +12,8 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "mcxx";
-  #version attribute ignored when using fetchgit:
-  #version = "2.2.0-70a299cf";
+  pname = "mcxx";
+  version = "${src.shortRev}";
 
   passthru = {
     CC = "mcc";
@@ -23,10 +21,9 @@ stdenv.mkDerivation rec {
   };
 
   # Use patched Extrae version
-  src = fetchgit {
+  src = builtins.fetchGit {
     url = "https://github.com/bsc-pm/mcxx";
-    rev = "70a299cfeb1f96735e6b9835aee946451f1913b2";
-    sha256 = "1n8y0h47jm2ll67xbz930372xkl9647z12lfwz2472j3y86yxpmw";
+    ref = "master";
   };
 
   enableParallelBuilding = true;
@@ -55,5 +52,7 @@ stdenv.mkDerivation rec {
   configureFlags = [
     "--enable-ompss-2"
     "--with-nanos6=${nanos6}"
+# Fails with "memory exhausted" with bison 3.7.1
+#    "--enable-bison-regeneration"
   ];
 }

bsc/mcxx/rarias.nix

@@ -49,6 +49,7 @@ stdenv.mkDerivation rec {
   configureFlags = [
     "--enable-ompss-2"
     "--with-nanos6=${nanos6}"
+#    "--enable-bison-regeneration"
   ];
 
   # Regenerate ia32 builtins to add the ones for gcc9