test/Makefile: Force lit -j1 on Cygwin.

lit -jN causes crash on Cygwin's python.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117093 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Makefile b/test/Makefile
index 7ca46beccc3f2cd0d0ed6fcce4d8c9a36dc22b54..87f21cfa5460ca5650b823383916a721fd93c5d9 100644 (file)
--- a/test/Makefile
+++ b/test/Makefile
@@ -33,6 +33,11 @@ else
 LIT_ARGS := -s -v
 endif
 
+# -jN causes crash on Cygwin's python.
+ifneq (,$(filter $(HOST_OS),Cygwin))
+  LIT_ARGS += -j1
+endif
+
 ifdef TESTSUITE
 LIT_TESTSUITE := $(TESTSUITE)
 CLEANED_TESTSUITE := $(patsubst %/,%,$(TESTSUITE))