From b9127cd2e0e541bf8f1be7a57c8a84fdf27c6d08 Mon Sep 17 00:00:00 2001
From: Florent Castelli <florent.castelli@gmail.com>
Date: Wed, 25 Jan 2017 03:51:17 +0100
Subject: [PATCH] cmake: Regroup definitions for 64bit file offsets

---
 CMakeLists.txt | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cfc383cc8b..899336b697 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -94,15 +94,6 @@ else()
 	add_definitions(-DDATA_DIR="${datadir}/")
 endif()
 
-# Set file offset size to 64 bits.
-#
-# On modern Unixes, this is typically already the case. The lone exception is
-# glibc, which may default to 32 bits. glibc allows this to be configured
-# by setting _FILE_OFFSET_BITS.
-if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
-	add_definitions(-D_FILE_OFFSET_BITS=64)
-endif()
-
 if(CMAKE_SYSROOT)
 	# If we should use a sysroot, tell pkg-config to search for packages in there, not on the host
 	set(ENV{PKG_CONFIG_LIBDIR} "${CMAKE_SYSROOT}/usr/lib/pkgconfig:${CMAKE_SYSROOT}/usr/share/pkgconfig")
@@ -414,7 +405,15 @@ if(ENABLE_HEADLESS)
 	add_definitions(-DUSE_HEADLESS)
 endif()
 
-add_definitions(-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE)
+# Set file offset size to 64 bits.
+#
+# On modern Unixes, this is typically already the case. The lone exception is
+# glibc, which may default to 32 bits. glibc allows this to be configured
+# by setting _FILE_OFFSET_BITS.
+if(NOT CMAKE_SYSTEM_NAME MATCHES "Windows")
+	add_definitions(-D_FILE_OFFSET_BITS=64)
+	add_definitions(-D_LARGEFILE_SOURCE)
+endif()
 
 ########################################
 # Dependency checking