From 6520bfecc75d4bdc66b19f81683dbae899e2b025 Mon Sep 17 00:00:00 2001
From: Doug Chapman <54039637+dougch@users.noreply.github.com>
Date: Thu, 10 Sep 2026 14:58:53 -0700
Subject: [PATCH] fix: declare FIPS service-indicator funcs in curve25519.c

curve25519.c calls FIPS_service_indicator_lock_state/unlock_state but
never includes their declaring header, relying on an implicit function
declaration. Add "../service_indicator/internal.h" to match the 12
other fipsmodule files that use these functions.

Implicit declarations are a hard error under C23/newer clang, and in
non-FIPS builds this bypasses the intended OPENSSL_INLINE no-op.
---
 crypto/fipsmodule/curve25519/curve25519.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/fipsmodule/curve25519/curve25519.c b/crypto/fipsmodule/curve25519/curve25519.c
index a6ebc490ab9..3cc42da43a8 100644
--- a/crypto/fipsmodule/curve25519/curve25519.c
+++ b/crypto/fipsmodule/curve25519/curve25519.c
@@ -19,6 +19,7 @@
 
 #include "../../internal.h"
 #include "../cpucap/internal.h"
+#include "../service_indicator/internal.h"
 #include "internal.h"
 
 const uint8_t RFC8032_DOM2_PREFIX[DOM2_PREFIX_SIZE] = {