diff --git a/pkgs/development/libraries/fflas-ffpack/1.nix b/pkgs/development/libraries/fflas-ffpack/1.nix
deleted file mode 100644
index 4a276db12c0..00000000000
--- a/pkgs/development/libraries/fflas-ffpack/1.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-{stdenv, fetchurl, autoreconfHook, givaro_3_7, pkgconfig, openblas, gmpxx}:
-stdenv.mkDerivation rec {
-  pname = "fflas-ffpack";
-  version = "1.6.0";
-  src = fetchurl {
-    url = "http://linalg.org/fflas-ffpack-${version}.tar.gz";
-    sha256 = "02fr675278c65hfiy1chb903j4ix9i8yni1xc2g5nmsjcaf9vra9";
-  };
-  nativeBuildInputs = [ autoreconfHook pkgconfig ];
-  buildInputs = [ givaro_3_7 openblas gmpxx];
-  configureFlags = [
-    "--with-blas=-lopenblas"
-    "--with-gmp=${gmpxx.dev}"
-    "--with-givaro=${givaro_3_7}"
-  ];
-  meta = {
-    inherit version;
-    description = ''Finite Field Linear Algebra Subroutines'';
-    license = stdenv.lib.licenses.lgpl21Plus;
-    maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.linux;
-    homepage = https://linbox-team.github.io/fflas-ffpack/;
-  };
-}
diff --git a/pkgs/development/libraries/fflas-ffpack/default.nix b/pkgs/development/libraries/fflas-ffpack/default.nix
index d46d997f644..b7d5d79544e 100644
--- a/pkgs/development/libraries/fflas-ffpack/default.nix
+++ b/pkgs/development/libraries/fflas-ffpack/default.nix
@@ -30,24 +30,25 @@ stdenv.mkDerivation rec {
     "--with-lapack-libs=-l${blas.linkName}"
   ] ++ stdenv.lib.optionals stdenv.isx86_64 {
     # disable SIMD instructions (which are enabled *when available* by default)
-    default        = [ "--disable-sse3" "--disable-ssse3" "--disable-sse41" "--disable-sse42" "--disable-avx" "--disable-avx2" "--disable-fma" "--disable-fma4" ];
-    westmere       = [                                                                        "--disable-avx" "--disable-avx2" "--disable-fma" "--disable-fma4" ];
-    sandybridge    = [                                                                                        "--disable-avx2" "--disable-fma" "--disable-fma4" ];
-    ivybridge      = [                                                                                        "--disable-avx2" "--disable-fma" "--disable-fma4" ];
-    haswell        = [                                                                                                                         "--disable-fma4" ];
-    broadwell      = [                                                                                                                         "--disable-fma4" ];
-    skylake        = [                                                                                                                         "--disable-fma4" ];
-    skylake-avx512 = [                                                                                                                         "--disable-fma4" ];
+    # for now we need to be careful to disable *all* relevant versions of an instruction set explicitly (https://github.com/linbox-team/fflas-ffpack/issues/284)
+    default        = [ "--disable-sse3" "--disable-ssse3" "--disable-sse41" "--disable-sse42" "--disable-avx" "--disable-avx2" "--disable-avx512f" "--disable-avx512dq" "--disable-avx512vl" "--disable-fma" "--disable-fma4" ];
+    westmere       = [                                                                        "--disable-avx" "--disable-avx2" "--disable-avx512f" "--disable-avx512dq" "--disable-avx512vl" "--disable-fma" "--disable-fma4" ];
+    sandybridge    = [                                                                                        "--disable-avx2" "--disable-avx512f" "--disable-avx512dq" "--disable-avx512vl" "--disable-fma" "--disable-fma4" ];
+    ivybridge      = [                                                                                        "--disable-avx2" "--disable-avx512f" "--disable-avx512dq" "--disable-avx512vl" "--disable-fma" "--disable-fma4" ];
+    haswell        = [                                                                                                                                                                       "--disable-fma4" ];
+    broadwell      = [                                                                                                                                                                       "--disable-fma4" ];
+    skylake        = [                                                                                                                                                                       "--disable-fma4" ];
+    skylake-avx512 = [                                                                                                                                                                       "--disable-fma4" ];
   }.${stdenv.hostPlatform.platform.gcc.arch or "default"};
 
   doCheck = true;
 
-  meta = {
+  meta = with stdenv.lib; {
     inherit version;
     description = ''Finite Field Linear Algebra Subroutines'';
-    license = stdenv.lib.licenses.lgpl21Plus;
-    maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.unix;
+    license = licenses.lgpl21Plus;
+    maintainers = with maintainers; [ raskin timokau ];
+    platforms = platforms.unix;
     homepage = https://linbox-team.github.io/fflas-ffpack/;
   };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ff683c17d34..b0a9e0753dd 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10725,7 +10725,6 @@ in
     blas = if stdenv.isDarwin then blas else openblas;
   };
 
-  fflas-ffpack_1 = callPackage ../development/libraries/fflas-ffpack/1.nix {};
   linbox = callPackage ../development/libraries/linbox {
     # We need to use blas instead of openblas on darwin, see
     # https://github.com/NixOS/nixpkgs/pull/45013 and