From 7464efd30359d41efbe4d9ed402b7192183d1f4c Mon Sep 17 00:00:00 2001
From: Martin Quinson <martin.quinson@loria.fr>
Date: Mon, 7 Mar 2016 10:32:49 +0100
Subject: [PATCH] Ceterum censeo Applem delendam esse.

---
 CMakeLists.txt | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ec3296a3b..0252eedf9f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -512,11 +512,10 @@ endif()
 
 if(NOT HAVE_UCONTEXT_H)
   message("-- No ucontext factory: <ucontext.h> not found.")
+elseif(APPLE)
+  message("-- No ucontext factory: Apple don't want us to use them.")
+  set(HAVE_UCONTEXT_H 0)
 else()
-  # This is needed for ucontext on MacOS X:
-  if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
-    add_definitions(-D_XOPEN_SOURCE=700 -D_DARWIN_C_SOURCE)
-  endif()
   try_compile(compile_makecontext ${CMAKE_BINARY_DIR} ${CMAKE_HOME_DIRECTORY}/tools/cmake/test_prog/prog_makecontext.c
     OUTPUT_VARIABLE compile_makecontext_output)
   
-- 
2.20.1