From 3d602b8ba51ba42a97797be3b44437df20c9de2c Mon Sep 17 00:00:00 2001
From: Gabriel Corona <gabriel.corona@loria.fr>
Date: Fri, 5 Jun 2015 11:07:45 +0200
Subject: [PATCH] Tentatively fix the detection of ucontext.h in Darwin

---
 buildtools/Cmake/CompleteInFiles.cmake | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/buildtools/Cmake/CompleteInFiles.cmake b/buildtools/Cmake/CompleteInFiles.cmake
index d1bd700fa6..7ced0a7316 100644
--- a/buildtools/Cmake/CompleteInFiles.cmake
+++ b/buildtools/Cmake/CompleteInFiles.cmake
@@ -130,6 +130,10 @@ CHECK_LIBRARY_EXISTS(pthread sem_timedwait           "" HAVE_SEM_TIMEDWAIT_LIB)
 CHECK_LIBRARY_EXISTS(pthread pthread_mutex_timedlock "" HAVE_MUTEX_TIMEDLOCK_LIB)
 CHECK_LIBRARY_EXISTS(rt      clock_gettime           "" HAVE_POSIX_GETTIME)
 
+if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
+  set(CMAKE_REQUIRED_DEFINITIONS -D_XOPEN_SOURCE")
+endif()
+
 CHECK_INCLUDE_FILES("time.h;sys/time.h" TIME_WITH_SYS_TIME)
 CHECK_INCLUDE_FILES("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS)
 CHECK_INCLUDE_FILE("pthread.h" HAVE_PTHREAD_H)
-- 
2.20.1