From 4fccc4399fbdeff42149d2059d9c20246cd0457a Mon Sep 17 00:00:00 2001
From: root <root@localhost.localdomain>
Date: Fri, 13 Feb 2015 15:56:26 +0800
Subject: [PATCH] Try supporting clang, doesn't work yet

---
 CMakeLists.txt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0edb761f..32a03adc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,6 +25,12 @@ include(CheckCXXCompilerFlag)
 check_cxx_compiler_flag(-std=c++11 HAVE_STD_CPP11_FLAG)
 if (HAVE_STD_CPP11_FLAG)
   set(CPP11_FLAG -std=c++11)
+  # Use libc++.
+  # We may link with libc++abi as well, leave it for now
+  if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+    message(STATUS "${CMAKE_CXX_COMPILER_ID} detected! Use libc++ as its standard library.")
+    set(CPP11_FLAG "-std=c++11 -stdlib=libc++ -lc++")
+  endif ()
 else ()
   check_cxx_compiler_flag(-std=c++0x HAVE_STD_CPP0X_FLAG)
   if (HAVE_STD_CPP0X_FLAG)
@@ -74,7 +80,7 @@ if (BIICODE)
 endif ()
 
 add_library(format ${FMT_SOURCES})
-if (CMAKE_COMPILER_IS_GNUCXX)
+if (CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
   set_target_properties(format PROPERTIES COMPILE_FLAGS
     "-Wall -Wextra -Wshadow -pedantic")
   if (CPP11_FLAG)