diff --git a/maintainers/scripts/luarocks-packages.csv b/maintainers/scripts/luarocks-packages.csv
index c8c8fb233d59..44a340a46349 100644
--- a/maintainers/scripts/luarocks-packages.csv
+++ b/maintainers/scripts/luarocks-packages.csv
@@ -22,6 +22,7 @@ ldoc,https://github.com/stevedonovan/LDoc.git,,,,,
 lgi,,,,,,
 linenoise,https://github.com/hoelzro/lua-linenoise.git,,,,,
 ljsyscall,,,,,lua5_1,lblasc
+lmathx,,,,,lua5_3,alexshpilkin
 lpeg,,,,,,vyp
 lpeg_patterns,,,,,,
 lpeglabel,,,,,,
diff --git a/pkgs/development/lua-modules/generated-packages.nix b/pkgs/development/lua-modules/generated-packages.nix
index 8fd6543b27d5..62c50bf6d701 100644
--- a/pkgs/development/lua-modules/generated-packages.nix
+++ b/pkgs/development/lua-modules/generated-packages.nix
@@ -659,6 +659,31 @@ buildLuarocksPackage {
   };
 }) {};
 
+lmathx = callPackage({ buildLuarocksPackage, luaOlder, luaAtLeast
+, fetchurl, lua
+}:
+buildLuarocksPackage {
+  pname = "lmathx";
+  version = "20150624-1";
+  knownRockspec = (fetchurl {
+    url    = "https://luarocks.org/lmathx-20150624-1.rockspec";
+    sha256 = "181wzsj1mxjyia43y8zwaydxahnl7a70qzcgc8jhhgic7jyi9pgv";
+  }).outPath;
+  src = fetchurl {
+    url    = "http://www.tecgraf.puc-rio.br/~lhf/ftp/lua/5.3/lmathx.tar.gz";
+    sha256 = "1r0ax3lq4xx6469aqc6qlfl3jynlghzhl5j65mpdj0kyzv4nknzf";
+  };
+
+  propagatedBuildInputs = [ lua ];
+
+  meta = {
+    homepage = "http://www.tecgraf.puc-rio.br/~lhf/ftp/lua/#lmathx";
+    description = "C99 extensions for the math library";
+    maintainers = with lib.maintainers; [ alexshpilkin ];
+    license.fullName = "Public domain";
+  };
+}) {};
+
 lpeg = callPackage({ buildLuarocksPackage, luaOlder, luaAtLeast
 , fetchurl, lua
 }:
diff --git a/pkgs/development/lua-modules/overrides.nix b/pkgs/development/lua-modules/overrides.nix
index 1411038e0c7f..3beb049c80fc 100644
--- a/pkgs/development/lua-modules/overrides.nix
+++ b/pkgs/development/lua-modules/overrides.nix
@@ -129,6 +129,38 @@ with prev;
     '';
   });
 
+  lmathx = prev.lib.overrideLuarocks prev.lmathx (drv:
+    if luaAtLeast "5.1" && luaOlder "5.2" then {
+      version = "20120430.51-1";
+      knownRockspec = (pkgs.fetchurl {
+        url    = "https://luarocks.org/lmathx-20120430.51-1.rockspec";
+        sha256 = "148vbv2g3z5si2db7rqg5bdily7m4sjyh9w6r3jnx3csvfaxyhp0";
+      }).outPath;
+      src = pkgs.fetchurl {
+        url    = "https://web.tecgraf.puc-rio.br/~lhf/ftp/lua/5.1/lmathx.tar.gz";
+        sha256 = "0sa553d0zlxhvpsmr4r7d841f16yq4wr3fg7i07ibxkz6yzxax51";
+      };
+    } else
+    if luaAtLeast "5.2" && luaOlder "5.3" then {
+      version = "20120430.52-1";
+      knownRockspec = (pkgs.fetchurl {
+        url    = "https://luarocks.org/lmathx-20120430.52-1.rockspec";
+        sha256 = "14rd625sipakm72wg6xqsbbglaxyjba9nsajsfyvhg0sz8qjgdya";
+      }).outPath;
+      src = pkgs.fetchurl {
+        url    = "http://www.tecgraf.puc-rio.br/~lhf/ftp/lua/5.2/lmathx.tar.gz";
+        sha256 = "19dwa4z266l2njgi6fbq9rak4rmx2fsx1s0p9sl166ar3mnrdwz5";
+      };
+    } else
+    {
+      disabled = luaOlder "5.1" || luaAtLeast "5.5";
+      # works fine with 5.4 as well
+      postConfigure = ''
+        substituteInPlace ''${rockspecFilename} \
+          --replace 'lua ~> 5.3' 'lua >= 5.3, < 5.5'
+      '';
+    });
+
   lrexlib-gnu = prev.lib.overrideLuarocks prev.lrexlib-gnu (drv: {
     buildInputs = [
       pkgs.gnulib