From 7c3c20161bf576d1d7e373734598876cc0e58130 Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Sat, 26 Dec 2015 00:06:59 +0800
Subject: [PATCH] Allow building on FreeBSD.

---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c99d9765..fbfb586a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -56,6 +56,11 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
     set(CMAKE_EXE_LINKER_FLAGS "-Wl,--as-needed ${CMAKE_EXE_LINKER_FLAGS}")
 endif()
 
+if(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
+    set(CMAKE_EXE_LINKER_FLAGS "-Wl,--as-needed ${CMAKE_EXE_LINKER_FLAGS}")
+endif()
+
 # dependencies
 
 CHECK_INCLUDE_FILE("stdint.h" HAVE_STDINT_H)