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-rw-r--r--sk-usbhid.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/sk-usbhid.c b/sk-usbhid.c
index 2fdf3d94..01412b69 100644
--- a/sk-usbhid.c
+++ b/sk-usbhid.c
@@ -31,6 +31,15 @@
#include <sha2.h>
#endif
+/*
+ * Almost every use of OpenSSL in this file is for ECDSA-NISTP256.
+ * This is strictly a larger hammer than necessary, but it reduces changes
+ * with upstream.
+ */
+#ifndef OPENSSL_HAS_ECC
+# undef WITH_OPENSSL
+#endif
+
#ifdef WITH_OPENSSL
#include <openssl/opensslv.h>
#include <openssl/crypto.h>