From ca58bd8bd2550419491a6cbba36b6bf09261e6ae Mon Sep 17 00:00:00 2001
From: Ka Ho Ng <khng300@gmail.com>
Date: Sat, 14 Jul 2018 16:48:33 +0800
Subject: [PATCH] Fix cmake/FindClang.cmake running on FreeBSD

execinfo is not specified as linking dependencies, but libLLVMSupport requires it.
Specify execinfo as linking dependency for FreeBSD in cmake/FindClang.cmake.
---
 cmake/FindClang.cmake | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cmake/FindClang.cmake b/cmake/FindClang.cmake
index fe44ece1..b46128f4 100644
--- a/cmake/FindClang.cmake
+++ b/cmake/FindClang.cmake
@@ -135,5 +135,9 @@ if(Clang_FOUND AND NOT TARGET Clang::Clang)
 
   find_package(Curses REQUIRED)
   find_package(ZLIB REQUIRED)
-  set_property(TARGET Clang::Clang PROPERTY IMPORTED_LINK_INTERFACE_LIBRARIES "${_Clang_LIBRARIES};${CURSES_LIBRARIES};${ZLIB_LIBRARIES}")
+  if(${CMAKE_SYSTEM_NAME} MATCHES FreeBSD)
+    set_property(TARGET Clang::Clang PROPERTY IMPORTED_LINK_INTERFACE_LIBRARIES "${_Clang_LIBRARIES};${CURSES_LIBRARIES};${ZLIB_LIBRARIES};execinfo")
+  else()
+    set_property(TARGET Clang::Clang PROPERTY IMPORTED_LINK_INTERFACE_LIBRARIES "${_Clang_LIBRARIES};${CURSES_LIBRARIES};${ZLIB_LIBRARIES}")
+  endif()
 endif()