tree 9b37e541488f751d5b44367301ecd56e2a3a0843
parent 89a52ffd543e3325d236aa876259c6bea8906474
author Saleem Abdulrasool <compnerd@compnerd.org> 1394597491 +0000
committer Saleem Abdulrasool <compnerd@compnerd.org> 1394597491 +0000

build: fix erroneous overwriting of flags

Always use list(APPEND) as it will perform the desired action even if the list
is empty or previously unset.  The first set is harmless, however, the
subsequent set was overwriting the previous flag setup resulting in an improper
compilation command being generated.  This manifested as a build failure on
Linux when using cmake + ninja.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@203638 91177308-0d34-0410-b5e6-96231b3b80d8