Move CompCert into coqPackages. (#126214)

* compcert: preparation to move in coqPackages

* compcert: move into coqPackages

* compcert: remove version 3.7

As a consequence, also remove VST version 2.6

These were broken.

2 files changed, 109 insertions, 2 deletions

diff --git a/pkgs/development/coq-modules/VST/default.nix b/pkgs/development/coq-modules/VST/default.nix
index ad5caec9492..c3bd33ce4bf 100644
--- a/pkgs/development/coq-modules/VST/default.nix
+++ b/pkgs/development/coq-modules/VST/default.nix
@@ -9,10 +9,8 @@ with lib; mkCoqDerivation {
   inherit version;
   defaultVersion = with versions; switch coq.coq-version [
     { case = range "8.12" "8.13"; out = "2.7.1"; }
-    { case = "8.11"; out = "2.6"; }
   ] null;
   release."2.7.1".sha256 = "1674j7bkvihiv19vizm99dp6gj3lryb00zx6a87jz214f3ydcvnj";
-  release."2.6".sha256 = "00bf9hl4pvmsqa08lzjs1mrxyfgfxq4k6778pnldmc8ichm90jgk";
   releaseRev = v: "v${v}";
   propagatedBuildInputs = [ compcert ];
 
diff --git a/pkgs/development/coq-modules/compcert/default.nix b/pkgs/development/coq-modules/compcert/default.nix
new file mode 100644
index 00000000000..978cea5b09e
--- /dev/null
+++ b/pkgs/development/coq-modules/compcert/default.nix
@@ -0,0 +1,109 @@
+{ lib, fetchzip, mkCoqDerivation, coq, flocq, compcert
+, ocamlPackages, fetchpatch, makeWrapper, coq2html
+, stdenv, tools ? stdenv.cc
+, version ? null
+}:
+
+with lib;
+
+let compcert = mkCoqDerivation rec {
+
+  pname = "compcert";
+  owner = "AbsInt";
+
+  inherit version;
+  releaseRev = v: "v${v}";
+
+  defaultVersion =  with versions; switch coq.version [
+      { case = range "8.8" "8.13"; out = "3.8"; }
+    ] null;
+
+  release = {
+    "3.8".sha256 = "1gzlyxvw64ca12qql3wnq3bidcx9ygsklv9grjma3ib4hvg7vnr7";
+    "3.9".sha256 = "1srcz2dqrvmbvv5cl66r34zqkm0hsbryk7gd3i9xx4slahc9zvdb";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = with ocamlPackages; [ ocaml findlib menhir menhirLib ] ++ [ coq coq2html ];
+  propagatedBuildInputs = [ flocq ];
+
+  enableParallelBuilding = true;
+
+  postPatch = ''
+    substituteInPlace ./configure \
+      --replace \$\{toolprefix\}ar 'ar' \
+      --replace '{toolprefix}gcc' '{toolprefix}cc'
+  '';
+
+  configurePhase = ''
+    ./configure -clightgen \
+    -prefix $out \
+    -coqdevdir $lib/lib/coq/${coq.coq-version}/user-contrib/compcert/ \
+    -toolprefix ${tools}/bin/ \
+    -use-external-Flocq \
+    ${if stdenv.isDarwin then "x86_64-macosx" else "x86_64-linux"}
+  '';
+
+  installTargets = "documentation install";
+  postInstall = ''
+    # move man into place
+    mkdir -p $man/share
+    mv $out/share/man/ $man/share/
+
+    # move docs into place
+    mkdir -p $doc/share/doc/compcert
+    mv doc/html $doc/share/doc/compcert/
+
+    # wrap ccomp to undefine _FORTIFY_SOURCE; ccomp invokes cc1 which sets
+    # _FORTIFY_SOURCE=2 by default, but undefines __GNUC__ (as it should),
+    # which causes a warning in libc. this suppresses it.
+    for x in ccomp clightgen; do
+      wrapProgram $out/bin/$x --add-flags "-U_FORTIFY_SOURCE"
+    done
+  '';
+
+  outputs = [ "out" "lib" "doc" "man" ];
+
+  meta = with lib; {
+    description = "Formally verified C compiler";
+    homepage    = "https://compcert.org";
+    license     = licenses.inria-compcert;
+    platforms   = [ "x86_64-linux" "x86_64-darwin" ];
+    maintainers = with maintainers; [ thoughtpolice jwiegley vbgl ];
+  };
+}; in
+compcert.overrideAttrs (o:
+  {
+    patches = with versions; switch [ coq.version o.version ] [
+      { cases = [ (range "8.12.2" "8.13.2") "3.8" ];
+        out = [
+          # Support for Coq 8.12.2
+          (fetchpatch {
+            url = "https://github.com/AbsInt/CompCert/commit/06956421b4307054af221c118c5f59593c0e67b9.patch";
+            sha256 = "1f90q6j3xfvnf3z830bkd4d8526issvmdlrjlc95bfsqs78i1yrl";
+          })
+          # Support for Coq 8.13.0
+          (fetchpatch {
+            url = "https://github.com/AbsInt/CompCert/commit/0895388e7ebf9c9f3176d225107e21968919fb97.patch";
+            sha256 = "0qhkzgb2xl5kxys81pldp3mr39gd30lvr2l2wmplij319vp3xavd";
+          })
+          # Support for Coq 8.13.1
+          (fetchpatch {
+            url = "https://github.com/AbsInt/CompCert/commit/6bf310dd678285dc193798e89fc2c441d8430892.patch";
+            sha256 = "026ahhvpj5pksy90f8pnxgmhgwfqk4kwyvcf8x3dsanvz98d4pj5";
+          })
+          # Drop support for Coq < 8.9
+          (fetchpatch {
+            url = "https://github.com/AbsInt/CompCert/commit/7563a5df926a4c6fb1489a7a4c847641c8a35095.patch";
+            sha256 = "05vkslzy399r3dm6dmjs722rrajnyfa30xsyy3djl52isvn4gyfb";
+          })
+          # Support for Coq 8.13.2
+          (fetchpatch {
+            url = "https://github.com/AbsInt/CompCert/commit/48bc183167c4ce01a5c9ea86e49d60530adf7290.patch";
+            sha256 = "0j62lppfk26d1brdp3qwll2wi4gvpx1k70qivpvby5f7dpkrkax1";
+          })
+        ];
+      }
+    ] [];
+  }
+)