[HADOOP-8569] CMakeLists.txt: define _GNU_SOURCE and _LARGEFILE_SOURCE

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.1.0-beta
• Target Version/s: 2.1.0-beta
• Hadoop Flags: Reviewed
• Assignee: Colin McCabe
• Reporter: Colin McCabe
• Created: 06/Jul/12 06:28
• Updated: 27/Aug/13 22:06
• Resolved: 25/Feb/13 22:08

Description

In the native code, we should define _GNU_SOURCE and _LARGEFILE_SOURCE so that all of the functions on Linux are available.

_LARGEFILE enables fseeko and ftello; _GNU_SOURCE enables a variety of Linux-specific functions from glibc, including sync_file_range.