From 09f018fe7deb8348001bd2e4f26f13074f807beb Mon Sep 17 00:00:00 2001
From: Eugene Scherba <escherba@gmail.com>
Date: Tue, 20 Dec 2022 10:15:22 -0500
Subject: [PATCH] update date command invocation

---
 python.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python.mk b/python.mk
index 6346e82..2467bd6 100644
--- a/python.mk
+++ b/python.mk
@@ -49,7 +49,7 @@ build: $(EXTENSION_OBJS)  ## build C extension(s)
 $(BUILD_STAMP): $(EXTENSION_DEPS) | $(ENV_STAMP)
 	@echo "Building using $(PYVERSION)"
 	$(PYTHON) setup.py build_ext --inplace
-	@echo "$(shell date --rfc-3339=seconds)" > $@
+	@echo "$(shell date -u +'%Y-%m-%dT%H:%M:%SZ')" > $@
 
 $(EXTENSION_OBJS): $(BUILD_STAMP)
 	@echo "done building $@"