Add help text for mmacosx-version-min=, mios-version-min=.

I keep forgetting the exact spelling of -macosx-version-min=, and now I can
run `bin/clang --help | grep version -A 2` to remind myself.  While here,
also document -mios-version-min=.  Don't document -mios-simulator-version-min=
as it's just an alias for -mios-version-min= these days.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@225409 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index c6517d15dae6a8e87d568ddb222a8bc54c5e0586..3c1dd21831651f8af84469c40a679e0499376317 100644 (file)
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -1096,14 +1096,16 @@ def mhwdiv_EQ : Joined<["-"], "mhwdiv=">, Group<m_Group>;
 def mglobal_merge : Flag<["-"], "mglobal-merge">, Group<m_Group>;
 def mhard_float : Flag<["-"], "mhard-float">, Group<m_Group>;
 def miphoneos_version_min_EQ : Joined<["-"], "miphoneos-version-min=">, Group<m_Group>;
-def mios_version_min_EQ : Joined<["-"], "mios-version-min=">, Alias<miphoneos_version_min_EQ>;
+def mios_version_min_EQ : Joined<["-"], "mios-version-min=">,
+  Alias<miphoneos_version_min_EQ>, HelpText<"Set iOS deployment target">;
 def mios_simulator_version_min_EQ : Joined<["-"], "mios-simulator-version-min=">, Alias<miphoneos_version_min_EQ>;
 def mkernel : Flag<["-"], "mkernel">, Group<m_Group>;
 def mlinker_version_EQ : Joined<["-"], "mlinker-version=">,
   Flags<[DriverOption]>;
 def mllvm : Separate<["-"], "mllvm">, Flags<[CC1Option,CC1AsOption,CoreOption]>,
   HelpText<"Additional arguments to forward to LLVM's option processing">;
-def mmacosx_version_min_EQ : Joined<["-"], "mmacosx-version-min=">, Group<m_Group>;
+def mmacosx_version_min_EQ : Joined<["-"], "mmacosx-version-min=">,
+  Group<m_Group>, HelpText<"Set Mac OS X deployment target">;
 def mms_bitfields : Flag<["-"], "mms-bitfields">, Group<m_Group>, Flags<[CC1Option]>,
   HelpText<"Set the default structure layout to be compatible with the Microsoft compiler standard">;
 def mstackrealign : Flag<["-"], "mstackrealign">, Group<m_Group>, Flags<[CC1Option]>,