From c363ce55f2a04124519e504bbe1706f858260805 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Sun, 16 Jul 2017 23:36:54 +0200
Subject: [PATCH] sha/keccak1600.c: build and make it work with strict
 warnings.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3943)
---
 crypto/sha/build.info   | 3 ++-
 crypto/sha/keccak1600.c | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/crypto/sha/build.info b/crypto/sha/build.info
index 4b3225bfe3..7686f9fd62 100644
--- a/crypto/sha/build.info
+++ b/crypto/sha/build.info
@@ -1,6 +1,7 @@
 LIBS=../../libcrypto
 SOURCE[../../libcrypto]=\
-        sha1dgst.c sha1_one.c sha256.c sha512.c {- $target{sha1_asm_src} -}
+        sha1dgst.c sha1_one.c sha256.c sha512.c {- $target{sha1_asm_src} -} \
+        keccak1600.c
 
 GENERATE[sha1-586.s]=asm/sha1-586.pl $(PERLASM_SCHEME) $(CFLAGS) $(LIB_CFLAGS) $(PROCESSOR)
 DEPEND[sha1-586.s]=../perlasm/x86asm.pl
diff --git a/crypto/sha/keccak1600.c b/crypto/sha/keccak1600.c
index 0ea9818059..7ff4ff85d3 100644
--- a/crypto/sha/keccak1600.c
+++ b/crypto/sha/keccak1600.c
@@ -11,6 +11,10 @@
 #include <string.h>
 #include <assert.h>
 
+size_t SHA3_absorb(uint64_t A[5][5], const unsigned char *inp, size_t len,
+                   size_t r);
+void SHA3_squeeze(uint64_t A[5][5], unsigned char *out, size_t len, size_t r);
+
 #ifndef KECCAK1600_ASM
 
 #if defined(__x86_64__) || defined(__aarch64__) || \
-- 
2.25.1