[lld-macho] Ignore -no_warn_duplicate_libraries flag (#86303)
This is a new ld64 flag (along with `-warn_duplicate_libraries`), where
the warning is enabled by default, and it can be useful to ignore since
it can be hard to dedup library flags across large builds. This doesn't
ignore the enabling version since if someone manually passed that and
lld didn't respect it, we probably want the user to know that.
GitOrigin-RevId: 39fe729502006f1b108828b75af8d63a27364f80
diff --git a/MachO/Options.td b/MachO/Options.td
index 19f8509..11458d9 100644
--- a/MachO/Options.td
+++ b/MachO/Options.td
@@ -1413,3 +1413,9 @@
HelpText<"Do not warn about issues that are only problems for binaries shipping to customers.">,
Flags<[HelpHidden]>,
Group<grp_ignored_silently>;
+
+// NOTE: This flag should be respected if -warn_duplicate_libraries is ever implemented.
+def no_warn_duplicate_libraries : Flag<["-"], "no_warn_duplicate_libraries">,
+ HelpText<"Do not warn if the input contains duplicate library options.">,
+ Flags<[HelpHidden]>,
+ Group<grp_ignored_silently>;
diff --git a/test/MachO/silent-ignore.s b/test/MachO/silent-ignore.s
index e57342c..58c3cc1 100644
--- a/test/MachO/silent-ignore.s
+++ b/test/MachO/silent-ignore.s
@@ -20,7 +20,7 @@
## Check that we don't emit any warnings nor errors for these unimplemented flags.
# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t.o
-# RUN: %lld %t.o -o /dev/null -objc_abi_version 2 -debug_variant
+# RUN: %lld %t.o -o /dev/null -objc_abi_version 2 -debug_variant -no_warn_duplicate_libraries
.globl _main
_main:
