From 0bf30ca72fff603bea651169ae816186b511a92c Mon Sep 17 00:00:00 2001
From: Jason Lee <jasonlee@lanl.gov>
Date: Wed, 20 Feb 2019 17:19:33 -0700
Subject: [PATCH] use _GNU_SOURCE instead of _POSIX_C_SOURCE

CMakeLists.txt update to add compile flags and require pthread
---
 CMakeLists.txt | 6 ++++++
 thpool.c       | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 973606a..7c959f7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,12 @@
 cmake_minimum_required(VERSION 3.0.0)
 project(C-Thread-Pool LANGUAGES C)
 
+# define the DEBUG macro when building in debug mode
+set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -DTHPOOL_DEBUG -Wall -Wextra")
+
+# require pthreads to be available
+find_package(Threads REQUIRED)
+
 install(FILES thpool.h DESTINATION include/C-Thread-Pool)
 
 add_library(thpool_static STATIC thpool.c)
diff --git a/thpool.c b/thpool.c
index 3494da2..8802992 100644
--- a/thpool.c
+++ b/thpool.c
@@ -8,7 +8,7 @@
  *
  ********************************/
 
-#define _POSIX_C_SOURCE 200809L
+#define _GNU_SOURCE
 #include <unistd.h>
 #include <signal.h>
 #include <stdio.h>