From 91dd6f0a0ea74b6505aeb640d83964f6dc85101a Mon Sep 17 00:00:00 2001
From: Huang Qi <huangqi3@xiaomi.com>
Date: Thu, 18 Apr 2024 09:42:46 +0800
Subject: [PATCH] Link libc++ statically to reduce runtime dependency of wamrc

---
 build-scripts/build_llvm.py  | 1 +
 wamr-compiler/CMakeLists.txt | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/build-scripts/build_llvm.py b/build-scripts/build_llvm.py
index e5036e5ca..04ba19fae 100755
--- a/build-scripts/build_llvm.py
+++ b/build-scripts/build_llvm.py
@@ -66,6 +66,7 @@ def build_llvm(llvm_dir, platform, backends, projects, use_clang=False, extra_fl
         "-DLLVM_INCLUDE_UTILS:BOOL=OFF",
         "-DLLVM_INCLUDE_TESTS:BOOL=OFF",
         "-DLLVM_OPTIMIZED_TABLEGEN:BOOL=ON",
+        "-DLLVM_STATIC_LINK_CXX_STDLIB=ON",
     ]
 
     # ccache is not available on Windows
diff --git a/wamr-compiler/CMakeLists.txt b/wamr-compiler/CMakeLists.txt
index 6a3f97521..4abf7f325 100644
--- a/wamr-compiler/CMakeLists.txt
+++ b/wamr-compiler/CMakeLists.txt
@@ -387,6 +387,12 @@ if (NOT MSVC)
       target_link_libraries (wamrc ssp.a ws2_32)
   else()
       target_link_libraries (wamrc -ldl)
+      # Link libc++ statically to reduce the runtime dependency
+      target_link_libraries (wamrc -static-libstdc++)
+      # If not on macOS, link libgcc statically
+      if (NOT APPLE)
+        target_link_libraries (wamrc -static-libgcc)
+      endif()
   endif()
 else()
   target_link_libraries (wamrc aotclib vmlib  ${lib_lldb} ${WAMRC_LINK_LLVM_LIBS} ${lib_ubsan}