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-rw-r--r--pkgs/development/interpreters/python/cpython/default.nix7
1 files changed, 5 insertions, 2 deletions
diff --git a/pkgs/development/interpreters/python/cpython/default.nix b/pkgs/development/interpreters/python/cpython/default.nix
index 64021672276d..7d90e201d192 100644
--- a/pkgs/development/interpreters/python/cpython/default.nix
+++ b/pkgs/development/interpreters/python/cpython/default.nix
@@ -87,6 +87,9 @@ in with passthru; stdenv.mkDerivation {
# (since it will do a futile invocation of gcc (!) to find
# libuuid, slowing down program startup a lot).
(./. + "/${sourceVersion.major}.${sourceVersion.minor}/no-ldconfig.patch")
+ ] ++ optionals (isPy35 || isPy36) [
+ # Determinism: Write null timestamps when compiling python files.
+ ./3.5/force_bytecode_determinism.patch
] ++ optionals isPy35 [
# Backports support for LD_LIBRARY_PATH from 3.6
./3.5/ld_library_path.patch
@@ -168,8 +171,8 @@ in with passthru; stdenv.mkDerivation {
export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -msse2"
export MACOSX_DEPLOYMENT_TARGET=10.6
'' + optionalString (isPy3k && pythonOlder "3.7") ''
- # Determinism: The interpreter is patched to write null timestamps when compiling python files.
- # This way python does not try to update them when we freeze timestamps in nix store.
+ # Determinism: The interpreter is patched to write null timestamps when compiling Python files
+ # so Python doesn't try to update the bytecode when seeing frozen timestamps in Nix's store.
export DETERMINISTIC_BUILD=1;
'' + optionalString stdenv.hostPlatform.isMusl ''
export NIX_CFLAGS_COMPILE+=" -DTHREAD_STACK_SIZE=0x100000"