From: Mehdi Amini <joker.eph@gmail.com>
Date: Fri, 16 Jul 2021 03:32:59 +0000 (+0000)
Subject: Build libSupport with -Werror=global-constructors (NFC)
X-Git-Tag: llvmorg-14-init~319
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5eb2e9aa64b7be7cd8ed7f36de19c2c9bdf1977c;p=platform%2Fupstream%2Fllvm.git

Build libSupport with -Werror=global-constructors (NFC)

Ensure that libSupport does not carry any static global initializer.
libSupport can be embedded in use cases where we don't want to load all
cl::opt unless we want to parse the command line.
ManagedStatic can be used to enable lazy-initialization of globals.
---

diff --git a/llvm/lib/Support/CMakeLists.txt b/llvm/lib/Support/CMakeLists.txt
index 2242b0e..57058c6 100644
--- a/llvm/lib/Support/CMakeLists.txt
+++ b/llvm/lib/Support/CMakeLists.txt
@@ -1,5 +1,11 @@
 include(GetLibraryName)
 
+# Ensure that libSupport does not carry any static global initializer.
+# libSupport can be embedded in use cases where we don't want to load all
+# cl::opt unless we want to parse the command line.
+# ManagedStatic can be used to enable lazy-initialization of globals.
+add_flag_if_supported("-Werror=global-constructors" WERROR_GLOBAL_CONSTRUCTOR)
+
 if(LLVM_ENABLE_ZLIB)
   set(imported_libs ZLIB::ZLIB)
 endif()