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-rw-r--r--nixpkgs/pkgs/development/libraries/eclib/default.nix20
1 files changed, 13 insertions, 7 deletions
diff --git a/nixpkgs/pkgs/development/libraries/eclib/default.nix b/nixpkgs/pkgs/development/libraries/eclib/default.nix
index 4709441a1011..740b0d81ca92 100644
--- a/nixpkgs/pkgs/development/libraries/eclib/default.nix
+++ b/nixpkgs/pkgs/development/libraries/eclib/default.nix
@@ -1,5 +1,5 @@
 { lib, stdenv
-, fetchFromGitHub
+, fetchurl
 , autoreconfHook
 , pari
 , ntl
@@ -14,16 +14,22 @@ assert withFlint -> flint != null;
 
 stdenv.mkDerivation rec {
   pname = "eclib";
-  version = "20190909"; # upgrade might break the sage interface
+  version = "20210625"; # upgrade might break the sage interface
   # sage tests to run:
   # src/sage/interfaces/mwrank.py
   # src/sage/libs/eclib
   # ping @timokau for more info
-  src = fetchFromGitHub {
-    owner = "JohnCremona";
-    repo = pname;
-    rev = "v${version}";
-    sha256 = "0y1vdi4120gdw56gg2dn3wh625yr9wpyk3wpbsd25w4lv83qq5da";
+  src = fetchurl {
+    # all releases for this project appear on its GitHub releases page
+    # by definition! other distros sometimes update whenever they see
+    # a version bump in configure.ac or a new tag (and this might show
+    # up on repology). however, a version bump or a new tag may not
+    # represent a new release, and a new release might not be tagged.
+    #
+    # see https://github.com/JohnCremona/eclib/issues/64#issuecomment-789788561
+    # for upstream's explanation of the above
+    url = "https://github.com/JohnCremona/eclib/releases/download/${version}/eclib-${version}.tar.bz2";
+    sha256 = "sha256-fA3MPz/L+Q39sA8wxAYOUowlHRcgOd8VF4tpsBGI6BA=";
   };
   buildInputs = [
     pari