[MinGW] Support the --subsystem=val option in joined form
Differential Revision: https://reviews.llvm.org/D63250
git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@363433 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/MinGW/Options.td b/MinGW/Options.td
index eb2ce62..44de98d 100644
--- a/MinGW/Options.td
+++ b/MinGW/Options.td
@@ -57,6 +57,7 @@
def output_def: S<"output-def">, HelpText<"Output def file">;
def shared: F<"shared">, HelpText<"Build a shared object">;
def subs: S<"subsystem">, HelpText<"Specify subsystem">;
+def subs_eq: J<"subsystem=">, Alias<subs>;
def stack: S<"stack">;
def strip_all: F<"strip-all">,
HelpText<"Omit all symbol information from the output binary">;
diff --git a/test/MinGW/driver.test b/test/MinGW/driver.test
index e80b648..cdd802e 100644
--- a/test/MinGW/driver.test
+++ b/test/MinGW/driver.test
@@ -57,6 +57,8 @@
RUN: ld.lld -### foo.o -m i386pep -subsystem console | FileCheck -check-prefix=SUBSYSTEM %s
RUN: ld.lld -### foo.o -m i386pep --subsystem console | FileCheck -check-prefix=SUBSYSTEM %s
+RUN: ld.lld -### foo.o -m i386pep -subsystem=console | FileCheck -check-prefix=SUBSYSTEM %s
+RUN: ld.lld -### foo.o -m i386pep --subsystem=console | FileCheck -check-prefix=SUBSYSTEM %s
SUBSYSTEM: -subsystem:console
RUN: ld.lld -### foo.o -m i386pep --major-os-version 7 --minor-os-version 8 | FileCheck -check-prefix=SUBSYSTEM_VERSION %s
