From 3acc51f73ca8c6ed2dda8cb471c1d2b5df28995e Mon Sep 17 00:00:00 2001
From: Hugues Delorme <delorme.hugues@fougue.pro>
Date: Fri, 23 Dec 2016 22:16:12 +0100
Subject: [PATCH] cmake: force POSIX with gcc

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

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 24e027b..7f2637e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -125,6 +125,7 @@ test_big_endian(GMIO_HOST_IS_BIG_ENDIAN)
 # Adapt C compiler flags to enable strict ISO C99 conformance
 if(CMAKE_C_COMPILER_IS_GCC_COMPATIBLE)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -pedantic-errors")
+    add_definitions(-D_POSIX_SOURCE)
 endif()
 
 set(CMAKE_REQUIRED_FLAGS "${CMAKE_C_FLAGS}")