From afb609ce148a67a659686f2f2bdd93e92156746d Mon Sep 17 00:00:00 2001
From: Tyler Yankee <tyler.yankee@kitware.com>
Date: Mon, 3 Aug 2026 19:30:33 -0400
Subject: [PATCH] cmScanDepFormat: Use cmJSONState to parse P1689 output

This approach will be more portable.
---
 Source/cmScanDepFormat.cxx | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/Source/cmScanDepFormat.cxx b/Source/cmScanDepFormat.cxx
index 00165447e9..f9d91f6b2f 100644
--- a/Source/cmScanDepFormat.cxx
+++ b/Source/cmScanDepFormat.cxx
@@ -10,7 +10,6 @@
 #include <cm/string_view>
 #include <cmext/string_view>
 
-#include <cm3p/json/reader.h>
 #include <cm3p/json/value.h>
 #include <cm3p/json/writer.h>
 
@@ -18,6 +17,7 @@
 #include "cmsys/String.h"
 
 #include "cmGeneratedFileStream.h"
+#include "cmJSONState.h"
 #include "cmStringAlgorithms.h"
 #include "cmSystemTools.h"
 
@@ -85,13 +85,11 @@ bool cmScanDepFormat_P1689_Parse(std::string const& arg_pp,
 {
   Json::Value ppio;
   Json::Value const& ppi = ppio;
-  cmsys::ifstream ppf(arg_pp.c_str(), std::ios::in | std::ios::binary);
   {
-    Json::Reader reader;
-    if (!reader.parse(ppf, ppio, false)) {
+    cmJSONState parseState(arg_pp, &ppio);
+    if (!parseState.errors.empty()) {
       cmSystemTools::Error(cmStrCat("-E cmake_ninja_dyndep failed to parse ",
-                                    arg_pp,
-                                    reader.getFormattedErrorMessages()));
+                                    arg_pp, parseState.GetErrorMessage()));
       return false;
     }
   }