From 62b23f5da5a29f54499f5339bc0f98c06e27af8f Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Mon, 19 Jun 2017 10:33:19 -0400
Subject: [PATCH] build: link against system libs reported by llvm-config

---
 .gitignore           |  1 +
 cmake/Findllvm.cmake | 10 +++++++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 97c6d25d16..361488f316 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@ build/
 build-release/
 build-windows/
 build-llvm-5/
+build-llvm-debug/
 /.cproject
 /.project
 /.settings/
diff --git a/cmake/Findllvm.cmake b/cmake/Findllvm.cmake
index 8459efe19c..29dd0fda1a 100644
--- a/cmake/Findllvm.cmake
+++ b/cmake/Findllvm.cmake
@@ -20,6 +20,11 @@ execute_process(
     OUTPUT_VARIABLE LLVM_LIBRARIES
     OUTPUT_STRIP_TRAILING_WHITESPACE)
 
+execute_process(
+    COMMAND ${LLVM_CONFIG_EXE} --system-libs
+    OUTPUT_VARIABLE LLVM_SYSTEM_LIBS
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
 execute_process(
     COMMAND ${LLVM_CONFIG_EXE} --libdir
     OUTPUT_VARIABLE LLVM_LIBDIRS
@@ -32,14 +37,13 @@ execute_process(
 
 find_library(LLVM_LIBRARY NAMES LLVM)
 
+set(LLVM_LIBRARIES ${LLVM_LIBRARIES} ${LLVM_SYSTEM_LIBS})
+
 if(LLVM_LIBRARY)
   set(LLVM_LIBRARIES ${LLVM_LIBRARY})
 endif()
 
 
-set(LLVM_LIBRARIES ${LLVM_LIBRARIES} ${LLVM_SYSTEM_LIBS})
-
-
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(LLVM DEFAULT_MSG LLVM_LIBRARIES LLVM_INCLUDE_DIR)