diff options
Diffstat (limited to 'lib/Driver/Tools.cpp')
| -rw-r--r-- | lib/Driver/Tools.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index 3158a517fb..691e96cb11 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -1718,6 +1718,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, Args.hasArg(options::OPT_fobjc_nonfragile_abi) && !Args.hasArg(options::OPT_fno_blocks))) { CmdArgs.push_back("-fblocks"); + + if (!Args.hasArg(options::OPT_fgnu_runtime) && + !getToolChain().hasBlocksRuntime()) + CmdArgs.push_back("-fblocks-runtime-optional"); } // -faccess-control is default. |