From af2ee9c5d1118bb51cd6b5c1e1edbda91648712d Mon Sep 17 00:00:00 2001
From: James McCoy <jamessan@jamessan.com>
Date: Thu, 30 Mar 2017 11:05:48 -0400
Subject: [PATCH] cmake: Detect whether msgpack-c has
 MSGPACK_OBJECT_FLOAT{32,64} types

---
 CMakeLists.txt | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1a058f2bff..e8956c9074 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -310,6 +310,21 @@ include_directories(SYSTEM ${LIBUV_INCLUDE_DIRS})
 find_package(Msgpack 1.0.0 REQUIRED)
 include_directories(SYSTEM ${MSGPACK_INCLUDE_DIRS})
 
+list(APPEND CMAKE_REQUIRED_INCLUDES "${MSGPACK_INCLUDE_DIRS}")
+check_c_source_compiles("
+#include <msgpack.h>
+
+int
+main(void)
+{
+  return MSGPACK_OBJECT_FLOAT32;
+}
+" MSGPACK_HAS_FLOAT32)
+
+if(MSGPACK_HAS_FLOAT32)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DNVIM_MSGPACK_HAS_FLOAT32")
+endif()
+
 if(UNIX)
   option(FEAT_TUI "Enable the Terminal UI" ON)
 else()