diff --git a/indra/cmake/00-Common.cmake b/indra/cmake/00-Common.cmake
index ce7c5ed0582a6bc8b59658a0a62d388d1e3817cd..e566ebe837f7c944ea68c675259e19f4d0bc2381 100644
--- a/indra/cmake/00-Common.cmake
+++ b/indra/cmake/00-Common.cmake
@@ -19,7 +19,10 @@ set(${CMAKE_CURRENT_LIST_FILE}_INCLUDED "YES")
 include(Variables)
 
 # We go to some trouble to set LL_BUILD to the set of relevant compiler flags.
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} $ENV{LL_BUILD}")
+#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} $ENV{LL_BUILD}")
+set(CMAKE_CXX_FLAGS_RELEASE "$ENV{LL_BUILD_RELEASE}")
+set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "$ENV{LL_BUILD_RELWITHDEBINFO}")
+set(CMAKE_CXX_FLAGS_DEBUG "$ENV{LL_BUILD_DEBUG}")
 # Given that, all the flags you see added below are flags NOT present in
 # https://bitbucket.org/lindenlab/viewer-build-variables/src/tip/variables.
 # Before adding new ones here, it's important to ask: can this flag really be