1 files changed, 53 insertions, 0 deletions
diff --git a/cmake/FindWrapResolv.cmake b/cmake/FindWrapResolv.cmake
new file mode 100644
index 0000000000..1afd253ee8
--- /dev/null
+++ b/cmake/FindWrapResolv.cmake
@@ -0,0 +1,53 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# Copyright (C) 2023 Intel Corpotation.
+# SPDX-License-Identifier: BSD-3-Clause
+
+# We can't create the same interface imported target multiple times, CMake will complain if we do
+# that. This can happen if the find_package call is done in multiple different subdirectories.
+if(TARGET WrapResolv::WrapResolv)
+    set(WrapResolv_FOUND ON)
+    return()
+endif()
+
+set(WrapResolv_FOUND OFF)
+
+include(CheckCXXSourceCompiles)
+include(CMakePushCheckState)
+
+if(QNX)
+    find_library(LIBRESOLV socket)
+else()
+    find_library(LIBRESOLV resolv)
+endif()
+
+cmake_push_check_state()
+if(LIBRESOLV)
+    list(APPEND CMAKE_REQUIRED_LIBRARIES "${LIBRESOLV}")
+endif()
+
+check_cxx_source_compiles("
+#include <netinet/in.h>
+#include <resolv.h>
+
+int main(int, char **argv)
+{
+    res_state statep = 0;
+    int n = res_nmkquery(statep, 0, argv[1], 0, 0, NULL, 0, NULL, NULL, 0);
+    n = res_nsend(statep, NULL, 0, NULL, 0);
+    n = dn_expand(NULL, NULL, NULL, NULL, 0);
+    return n;
+}
+" HAVE_LIBRESOLV_FUNCTIONS)
+
+cmake_pop_check_state()
+
+if(HAVE_LIBRESOLV_FUNCTIONS)
+    set(WrapResolv_FOUND ON)
+    add_library(WrapResolv::WrapResolv INTERFACE IMPORTED)
+    if(LIBRESOLV)
+        target_link_libraries(WrapResolv::WrapResolv INTERFACE "${LIBRESOLV}")
+    endif()
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(WrapResolv DEFAULT_MSG WrapResolv_FOUND)