From caaf106b1c82a1cc83bd73aae1224aac2435a2cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bernhard=20=C3=9Cbelacker?= <bernhardu@mailbox.org>
Date: Tue, 15 Sep 2026 13:59:31 +0200
Subject: [PATCH] Add to CMakeLists.txt a warning if jq package is missing.

Fixes #4096
---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fe660b67b64..3d8afab5aff 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -456,6 +456,11 @@ foreach(py_module ${REQUIRED_PYTHON_MODULES})
   endif()
 endforeach(py_module)
 
+find_program(JQ jq)
+if(${JQ} STREQUAL "JQ-NOTFOUND")
+  message(WARNING "Can't find 'jq' command, expect some tests to fail; install jq package? https://github.com/rr-debugger/rr/wiki/Building-And-Installing#tldr")
+endif()
+
 if(WILL_RUN_TESTS)
   # Check for gdb and lldb
   execute_process(COMMAND "gdb" "--version" RESULT_VARIABLE module_status OUTPUT_QUIET)