[PATCH] crypto/gc: Cope with libgcrypt without SM3.

[Simon Josefsson]

* lib/gc-libgcrypt.c (gc_hash_open): Guard SM3 usage.
---
 ChangeLog          | 5 +++++
 lib/gc-libgcrypt.c | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 9b994381b..539e7a09f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-07-24  Simon Josefsson  <address@hidden>
+
+       crypto/gc: Cope with libgcrypt without SM3.
+       * lib/gc-libgcrypt.c (gc_hash_open): Guard SM3 usage.
+
 2019-07-23  Paul Eggert  <address@hidden>
 
        backupfile: fix resource leak on memory failure
diff --git a/lib/gc-libgcrypt.c b/lib/gc-libgcrypt.c
index ac348434d..468356689 100644
--- a/lib/gc-libgcrypt.c
+++ b/lib/gc-libgcrypt.c
@@ -304,9 +304,11 @@ gc_hash_open (Gc_hash hash, Gc_hash_mode mode, 
gc_hash_handle * outhandle)
       gcryalg = GCRY_MD_RMD160;
       break;
 
+#ifdef GNULIB_GC_SM3
     case GC_SM3:
       gcryalg = GCRY_MD_SM3;
       break;
+#endif
 
     default:
       rc = GC_INVALID_HASH;
-- 
2.20.1

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