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-rw-r--r--hash.h8
-rw-r--r--t/test-lib.sh2
2 files changed, 8 insertions, 2 deletions
diff --git a/hash.h b/hash.h
index 953e840d15..3fcbe9bcba 100644
--- a/hash.h
+++ b/hash.h
@@ -174,8 +174,14 @@ static inline void git_SHA256_Clone(git_SHA256_CTX *dst, const git_SHA256_CTX *s
#define GIT_HASH_SHA256 2
/* Number of algorithms supported (including unknown). */
#define GIT_HASH_NALGOS (GIT_HASH_SHA256 + 1)
+
/* Default hash algorithm if unspecified. */
-#define GIT_HASH_DEFAULT GIT_HASH_SHA1
+#ifdef WITH_BREAKING_CHANGES
+# define GIT_HASH_DEFAULT GIT_HASH_SHA256
+#else
+# define GIT_HASH_DEFAULT GIT_HASH_SHA1
+#endif
+
/* Legacy hash algorithm. Implied for older data formats which don't specify. */
#define GIT_HASH_SHA1_LEGACY GIT_HASH_SHA1
diff --git a/t/test-lib.sh b/t/test-lib.sh
index be71890678..315543f293 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -536,7 +536,7 @@ export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
export EDITOR
-GIT_TEST_BUILTIN_HASH=sha1
+GIT_TEST_BUILTIN_HASH=$("$GIT_BUILD_DIR/git" version --build-options | sed -ne 's/^default-hash: //p')
GIT_DEFAULT_HASH="${GIT_TEST_DEFAULT_HASH:-$GIT_TEST_BUILTIN_HASH}"
export GIT_DEFAULT_HASH
GIT_DEFAULT_REF_FORMAT="${GIT_TEST_DEFAULT_REF_FORMAT:-files}"