1 files changed, 5 insertions, 3 deletions
diff --git a/nixpkgs/pkgs/development/libraries/libtomcrypt/default.nix b/nixpkgs/pkgs/development/libraries/libtomcrypt/default.nix
index 7ed8fca3babd..936c92bf7c5d 100644
--- a/nixpkgs/pkgs/development/libraries/libtomcrypt/default.nix
+++ b/nixpkgs/pkgs/development/libraries/libtomcrypt/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, fetchpatch, libtool }:
+{ lib, stdenv, fetchurl, fetchpatch, libtool, libtommath }:
 
 stdenv.mkDerivation rec {
   pname = "libtomcrypt";
@@ -17,14 +17,16 @@ stdenv.mkDerivation rec {
     })
   ];
 
-  nativeBuildInputs = [ libtool ];
+  nativeBuildInputs = [ libtool libtommath ];
 
   postPatch = ''
     substituteInPlace makefile.shared --replace "LT:=glibtool" "LT:=libtool"
   '';
 
   preBuild = ''
-    makeFlagsArray=(PREFIX=$out \
+    makeFlagsArray+=(PREFIX=$out \
+      CFLAGS="-DUSE_LTM -DLTM_DESC -DLTC_PTHREAD" \
+      EXTRALIBS=\"-ltommath\" \
       INSTALL_GROUP=$(id -g) \
       INSTALL_USER=$(id -u))
   '';