From 7ec1a56baf4d2f30abf525a851971f671ec04d93 Mon Sep 17 00:00:00 2001
From: Petr Hosek <phosek@chromium.org>
Date: Tue, 8 Aug 2017 00:37:59 +0000
Subject: [PATCH] [CMake] Allow overriding lib dir suffix independently from
 LLVM

This matches the options already supported by libc++ and libc++abi.

Differential Revision: https://reviews.llvm.org/D36383

llvm-svn: 310327
---
 libunwind/CMakeLists.txt     | 4 +++-
 libunwind/src/CMakeLists.txt | 4 ++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/libunwind/CMakeLists.txt b/libunwind/CMakeLists.txt
index 5acc4c2..eef7479 100644
--- a/libunwind/CMakeLists.txt
+++ b/libunwind/CMakeLists.txt
@@ -133,6 +133,8 @@ option(LIBUNWIND_ENABLE_THREADS "Build libunwind with threading support." ON)
 option(LIBUNWIND_USE_COMPILER_RT "Use compiler-rt instead of libgcc" OFF)
 option(LIBUNWIND_INCLUDE_DOCS "Build the libunwind documentation." ${LLVM_INCLUDE_DOCS})
 
+set(LIBUNWIND_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING
+    "Define suffix of library directory name (32/64)")
 set(LIBUNWIND_TARGET_TRIPLE "" CACHE STRING "Target triple for cross compiling.")
 set(LIBUNWIND_GCC_TOOLCHAIN "" CACHE PATH "GCC toolchain for cross compiling.")
 set(LIBUNWIND_SYSROOT "" CACHE PATH "Sysroot for cross compiling.")
@@ -165,7 +167,7 @@ set(LIBUNWIND_BINARY_DIR  ${CMAKE_CURRENT_BINARY_DIR})
 if (LLVM_LIBRARY_OUTPUT_INTDIR)
   set(LIBUNWIND_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
 else()
-  set(LIBUNWIND_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
+  set(LIBUNWIND_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBUNWIND_LIBDIR_SUFFIX})
 endif()
 
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBUNWIND_LIBRARY_DIR})
diff --git a/libunwind/src/CMakeLists.txt b/libunwind/src/CMakeLists.txt
index 97c4f3f..84ed15c 100644
--- a/libunwind/src/CMakeLists.txt
+++ b/libunwind/src/CMakeLists.txt
@@ -133,6 +133,6 @@ endif()
 add_custom_target(unwind DEPENDS ${LIBUNWIND_TARGETS})
 
 install(TARGETS ${LIBUNWIND_TARGETS}
-  LIBRARY DESTINATION ${LIBUNWIND_INSTALL_PREFIX}lib${LLVM_LIBDIR_SUFFIX}
-  ARCHIVE DESTINATION ${LIBUNWIND_INSTALL_PREFIX}lib${LLVM_LIBDIR_SUFFIX})
+  LIBRARY DESTINATION ${LIBUNWIND_INSTALL_PREFIX}lib${LIBUNWIND_LIBDIR_SUFFIX}
+  ARCHIVE DESTINATION ${LIBUNWIND_INSTALL_PREFIX}lib${LIBUNWIND_LIBDIR_SUFFIX})
 
-- 
2.7.4