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-rw-r--r--pkgs/development/libraries/tdb/default.nix6
1 files changed, 6 insertions, 0 deletions
diff --git a/pkgs/development/libraries/tdb/default.nix b/pkgs/development/libraries/tdb/default.nix
index 658bdb2f9d5..2e2e09be108 100644
--- a/pkgs/development/libraries/tdb/default.nix
+++ b/pkgs/development/libraries/tdb/default.nix
@@ -19,6 +19,7 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [
+    python3
     pkg-config
     wafHook
     libxslt
@@ -38,6 +39,11 @@ stdenv.mkDerivation rec {
     "--builtin-libraries=replace"
   ];
 
+  # python-config from build Python gives incorrect values when cross-compiling.
+  # If python-config is not found, the build falls back to using the sysconfig
+  # module, which works correctly in all cases.
+  PYTHON_CONFIG = "/invalid";
+
   meta = with lib; {
     description = "The trivial database";
     longDescription = ''