build: set OS_ID_LIKE only if unset

[vpp.git] / src / cmake / pack.cmake

diff --git a/src/cmake/pack.cmake b/src/cmake/pack.cmake
index f4edecb..88b6254 100644 (file)
--- a/src/cmake/pack.cmake
+++ b/src/cmake/pack.cmake
@@ -65,7 +65,7 @@ macro(add_vpp_packaging)
   set(CPACK_${type}_PACKAGE_RELEASE 1)
 
   # Pure Debian does not set the "OS_ID_LIKE", it only sets "OS_ID"
-  if (OS_ID_LIKE MATCHES "")
+  if (NOT DEFINED OS_ID_LIKE)
     set(OS_ID_LIKE "${OS_ID}")
   endif()