From f4bad3606db8d6004560e2e37efb1236b741b1ca Mon Sep 17 00:00:00 2001
From: Paul Philippov <paul@themactep.com>
Date: Mon, 23 Feb 2026 03:13:34 -0500
Subject: [PATCH] fix: guard IMPISPAWBHist declaration for platforms that
 support it

IMPISPAWBHist is not defined in T40/T41 SDK headers. Guard the
IMP_ISP_Tuning_GetAwbHist prototype with the same platform condition
used at the call site in imp_hal.cpp.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 src/imp_hal.hpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/imp_hal.hpp b/src/imp_hal.hpp
index 0d31cb9..a69b197 100644
--- a/src/imp_hal.hpp
+++ b/src/imp_hal.hpp
@@ -34,7 +34,10 @@ struct IMPISPEVAttr {};
 // Compatibility shims for SDK variants where these prototypes are absent.
 extern "C" {
 int IMP_OSD_SetPoolSize(int size);
+#if defined(PLATFORM_T20) || defined(PLATFORM_T21) || defined(PLATFORM_T23) || defined(PLATFORM_T30) || \
+    defined(PLATFORM_T31) || defined(PLATFORM_C100)
 int IMP_ISP_Tuning_GetAwbHist(IMPISPAWBHist *awb_hist);
+#endif
 }
 
 struct _stream; // fwd decl