Replace GHASH_ASM with function specific defines.

Use the same pattern that is now used for most other code - provide HAVE_*
defines for functions and use these to selectively enable source code.

2 files changed, 9 insertions, 3 deletions

diff --git a/src/lib/libcrypto/arch/alpha/Makefile.inc b/src/lib/libcrypto/arch/alpha/Makefile.inc
index 1073ac3c1e..d89f32dc9d 100644
--- a/src/lib/libcrypto/arch/alpha/Makefile.inc
+++ b/src/lib/libcrypto/arch/alpha/Makefile.inc
@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile.inc,v 1.15 2025/02/14 12:01:58 jsing Exp $
+# $OpenBSD: Makefile.inc,v 1.16 2026/01/17 14:30:37 jsing Exp $
 
 # alpha-specific libcrypto build rules
 
@@ -6,7 +6,6 @@
 SSLASM+= bn alpha-mont
 CFLAGS+= -DOPENSSL_BN_ASM_MONT
 # modes
-CFLAGS+= -DGHASH_ASM
 SSLASM+= modes ghash-alpha
 # sha
 SSLASM+= sha sha1-alpha
diff --git a/src/lib/libcrypto/arch/alpha/crypto_arch.h b/src/lib/libcrypto/arch/alpha/crypto_arch.h
index 1d553b7e07..8fec3e2855 100644
--- a/src/lib/libcrypto/arch/alpha/crypto_arch.h
+++ b/src/lib/libcrypto/arch/alpha/crypto_arch.h
@@ -1,4 +1,4 @@
-/*      $OpenBSD: crypto_arch.h,v 1.2 2025/02/14 12:01:58 jsing Exp $ */
+/*      $OpenBSD: crypto_arch.h,v 1.3 2026/01/17 14:30:37 jsing Exp $ */
 /*
  * Copyright (c) 2024 Joel Sing <jsing@openbsd.org>
  *
@@ -18,7 +18,14 @@
 #ifndef HEADER_CRYPTO_ARCH_H
 #define HEADER_CRYPTO_ARCH_H
 
+#ifndef OPENSSL_NO_ASM
+
+#define HAVE_GCM_GHASH_4BIT
+#define HAVE_GCM_GMULT_4BIT
+
 #define HAVE_SHA1_BLOCK_DATA_ORDER
 #define HAVE_SHA1_BLOCK_GENERIC
 
 #endif
+
+#endif