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-rw-r--r--Misc/NEWS.d/next/Core and Builtins/2023-02-21-23-42-39.gh-issue-102027.fQARG0.rst2
-rw-r--r--Modules/_blake2/impl/blake2-config.h2
2 files changed, 3 insertions, 1 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2023-02-21-23-42-39.gh-issue-102027.fQARG0.rst b/Misc/NEWS.d/next/Core and Builtins/2023-02-21-23-42-39.gh-issue-102027.fQARG0.rst
new file mode 100644
index 0000000..42d96b5
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2023-02-21-23-42-39.gh-issue-102027.fQARG0.rst
@@ -0,0 +1,2 @@
+Fix SSE2 and SSE3 detection in ``_blake2`` internal module. Patch by Max
+Bachmann.
diff --git a/Modules/_blake2/impl/blake2-config.h b/Modules/_blake2/impl/blake2-config.h
index f5dd6fa..c09cb4b 100644
--- a/Modules/_blake2/impl/blake2-config.h
+++ b/Modules/_blake2/impl/blake2-config.h
@@ -53,7 +53,7 @@
#endif
#endif
-#ifdef HAVE_SSE41
+#ifdef HAVE_SSE4_1
#ifndef HAVE_SSSE3
#define HAVE_SSSE3
#endif