--- a/make/RunTestsPrebuilt.gmk	Fri Oct 12 16:37:22 2018 -0700
+++ b/make/RunTestsPrebuilt.gmk	Sat Oct 13 03:02:28 2018 +0200
@@ -95,12 +95,12 @@
 # $1: The output file name
 # $2..$N: The lines to output to the file
 define CreateNewSpec
-  $(if $(strip $(29)), \
+  $(if $(strip $(30)), \
     $(error Internal makefile error: \
       Too many arguments to macro, please update CreateNewSpec in RunTestsPrebuilt.gmk) \
   ) \
   $(shell $(RM) $1) \
-  $(foreach i, $(call sequence, 2, 28), \
+  $(foreach i, $(call sequence, 2, 29), \
     $(if $(strip $($i)), \
       $(call AppendFile, $(strip $($i)), $1) \
     ) \
@@ -241,19 +241,23 @@
     LD := $(DEVKIT_HOME)/VC/bin/x64/link
     LIBRARY_PREFIX :=
     SHARED_LIBRARY_SUFFIX := .dll
+    EXE_SUFFIX := .exe
   else ifeq ($(OPENJDK_TARGET_OS), linux)
     LD := $(DEVKIT_HOME)/bin/ld
     LIBRARY_PREFIX := lib
     SHARED_LIBRARY_SUFFIX := .so
+    EXE_SUFFIX :=
   else ifeq ($(OPENJDK_TARGET_OS), macosx)
     LD := $(DEVKIT_HOME)/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld
     LIBRARY_PREFIX := lib
     SHARED_LIBRARY_SUFFIX := .dylib
+    EXE_SUFFIX :=
   else ifeq ($(OPENJDK_TARGET_OS), solaris)
     # Prefer system linker for AOT on Solaris.
     LD := ld
     LIBRARY_PREFIX := lib
     SHARED_LIBRARY_SUFFIX := .so
+    EXE_SUFFIX :=
   endif
 else
   LD := ld
@@ -297,6 +301,7 @@
     LD := $(LD), \
     LIBRARY_PREFIX := $(LIBRARY_PREFIX), \
     SHARED_LIBRARY_SUFFIX := $(SHARED_LIBRARY_SUFFIX), \
+    EXE_SUFFIX := $(EXE_SUFFIX), \
     include $(TOPDIR)/make/RunTestsPrebuiltSpec.gmk, \
     $(CUSTOM_NEW_SPEC_LINE), \
 )