From f2d80aa6b8614e2863491f2f3e08b670f9e01c7a Mon Sep 17 00:00:00 2001
From: "Roger A. Light" <roger@atchoo.org>
Date: Mon, 13 Apr 2026 23:58:57 +0100
Subject: [PATCH] Fix cmake ASAN build

---
 .github/workflows/mosquitto-cmake-asan.yml | 1 +
 libcommon/CMakeLists.txt                   | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/.github/workflows/mosquitto-cmake-asan.yml b/.github/workflows/mosquitto-cmake-asan.yml
index e05ea95c..b0a2b6cb 100644
--- a/.github/workflows/mosquitto-cmake-asan.yml
+++ b/.github/workflows/mosquitto-cmake-asan.yml
@@ -67,6 +67,7 @@ jobs:
         cmake \
           -G Ninja \
           -DCMAKE_BUILD_TYPE=Debug \
+          -DWITH_SHARED_LIBCOMMON=ON \
           -S . \
           -B build
       env:
diff --git a/libcommon/CMakeLists.txt b/libcommon/CMakeLists.txt
index 8a5af5f7..6c349a20 100644
--- a/libcommon/CMakeLists.txt
+++ b/libcommon/CMakeLists.txt
@@ -29,6 +29,13 @@ option_env(ALLOC_MISMATCH_INVALID_READ "Memory function mismatch detection." OFF
 option_env(ALLOC_MISMATCH_ABORT "Memory function mismatch abort." OFF)
 
 if(WIN32)
+	set(WITH_SHARED_LIBCOMMON_DEF ON)
+else()
+	set(WITH_SHARED_LIBCOMMON_DEF OFF)
+endif()
+option_env(WITH_SHARED_LIBCOMMON "Build libmosquitto_common as a shared library?" ${WITH_SHARED_LIBCOMMON_DEF})
+
+if(WITH_SHARED_LIBCOMMON)
 	add_library(libmosquitto_common SHARED
 		${C_SRC}
 	)