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-rw-r--r--CMakeLists.txt19
1 files changed, 3 insertions, 16 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9326f270..dac8d998 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -103,29 +103,16 @@ ELSE()
ENDIF()
if(NOT WIN32)
- # Check if _POSIX_C_SOURCE needs to be set for POSIX functions
+ # Check if _POSIX_C_SOURCE and _XOPEN_SOURCE needs to be set for POSIX functions
CHECK_SYMBOL_EXISTS(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN_DEFAULT)
IF(NOT HAVE_POSIX_MEMALIGN_DEFAULT)
SET(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
- SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_POSIX_C_SOURCE=200809L")
+ SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700")
CHECK_SYMBOL_EXISTS(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN_POSIX)
IF(NOT HAVE_POSIX_MEMALIGN_POSIX)
SET(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
ELSE()
- ADD_DEFINITIONS(-D_POSIX_C_SOURCE=200809L)
- ENDIF()
- ENDIF()
-
- # Check if _XOPEN_SOURCE needs to be set (if POSIX < 2008)
- CHECK_SYMBOL_EXISTS(scandir dirent.h HAVE_SCANDIR_DEFAULT)
- IF(NOT HAVE_SCANDIR_DEFAULT)
- SET(OLD_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
- SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_XOPEN_SOURCE=700")
- CHECK_SYMBOL_EXISTS(scandir dirent.h HAVE_SCANDIR_XOPEN)
- IF(NOT HAVE_SCANDIR_XOPEN)
- SET(CMAKE_REQUIRED_FLAGS ${OLD_REQUIRED_FLAGS})
- ELSE()
- ADD_DEFINITIONS(-D_XOPEN_SOURCE=700)
+ ADD_DEFINITIONS(-D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700)
ENDIF()
ENDIF()
UNSET(OLD_REQUIRED_FLAGS)