Gutted that this is needed, folks who care about keeping the legacy build
system alive should sort this out already.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210321
91177308-0d34-0410-b5e6-
96231b3b80d8
## M4sh Initialization. ##
## --------------------- ##
-# Be Bourne compatible
+# Be Bourne compatible.
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
emulate sh
NULLCMD=: