Remove large file macros

Large file offsets aren't being utilized, and C++ seems to use to 64-bit
offsets anyway.

3 files changed, 0 insertions, 61 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 81eb25bf..b9087e95 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,7 +46,6 @@ INCLUDE(CheckCSourceCompiles)
 INCLUDE(CheckCXXSourceCompiles)
 INCLUDE(CheckTypeSize)
 include(CheckStructHasMember)
-include(CheckFileOffsetBits)
 include(GNUInstallDirs)
 
 
@@ -150,18 +149,6 @@ if(NOT WIN32)
     UNSET(OLD_REQUIRED_FLAGS)
 ENDIF()
 
-# Set defines for large file support. Don't set this for Android targets. See:
-# https://android-developers.googleblog.com/2017/09/introducing-android-native-development.html
-IF(NOT ANDROID)
-    CHECK_FILE_OFFSET_BITS()
-    IF(_FILE_OFFSET_BITS)
-        SET(CPP_DEFS ${CPP_DEFS} "_FILE_OFFSET_BITS=${_FILE_OFFSET_BITS}")
-        SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_FILE_OFFSET_BITS=${_FILE_OFFSET_BITS}")
-    ENDIF()
-    SET(CPP_DEFS ${CPP_DEFS} _LARGEFILE_SOURCE _LARGE_FILES)
-    SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_LARGEFILE_SOURCE -D_LARGE_FILES")
-ENDIF()
-
 # C99 has restrict, but C++ does not, so we can only utilize __restrict.
 SET(RESTRICT_DECL )
 CHECK_CXX_SOURCE_COMPILES("int *__restrict foo;
diff --git a/cmake/CheckFileOffsetBits.c b/cmake/CheckFileOffsetBits.c
deleted file mode 100644
index de98296e..00000000
--- a/cmake/CheckFileOffsetBits.c
+++ /dev/null
@@ -1,9 +0,0 @@
-#include <sys/types.h>
-
-#define KB ((off_t)(1024))
-#define MB ((off_t)(KB*1024))
-#define GB ((off_t)(MB*1024))
-int tb[((GB+GB+GB) > GB) ? 1 : -1];
-
-int main()
-{ return 0; }
diff --git a/cmake/CheckFileOffsetBits.cmake b/cmake/CheckFileOffsetBits.cmake
deleted file mode 100644
index 1dc154e4..00000000
--- a/cmake/CheckFileOffsetBits.cmake
+++ /dev/null
@@ -1,39 +0,0 @@
-# - Check if the _FILE_OFFSET_BITS macro is needed for large files
-# CHECK_FILE_OFFSET_BITS()
-#
-# The following variables may be set before calling this macro to
-# modify the way the check is run:
-#
-#  CMAKE_REQUIRED_FLAGS = string of compile command line flags
-#  CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
-#  CMAKE_REQUIRED_INCLUDES = list of include directories
-# Copyright (c) 2009, Chris Robinson
-#
-# Redistribution and use is allowed according to the terms of the LGPL license.
-
-
-MACRO(CHECK_FILE_OFFSET_BITS)
-
-  IF(NOT DEFINED _FILE_OFFSET_BITS)
-    MESSAGE(STATUS "Checking _FILE_OFFSET_BITS for large files")
-    TRY_COMPILE(__WITHOUT_FILE_OFFSET_BITS_64
-      ${CMAKE_CURRENT_BINARY_DIR}
-      ${CMAKE_CURRENT_SOURCE_DIR}/cmake/CheckFileOffsetBits.c
-      COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS})
-    IF(NOT __WITHOUT_FILE_OFFSET_BITS_64)
-      TRY_COMPILE(__WITH_FILE_OFFSET_BITS_64
-        ${CMAKE_CURRENT_BINARY_DIR}
-        ${CMAKE_CURRENT_SOURCE_DIR}/cmake/CheckFileOffsetBits.c
-        COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} -D_FILE_OFFSET_BITS=64)
-    ENDIF(NOT __WITHOUT_FILE_OFFSET_BITS_64)
-
-    IF(NOT __WITHOUT_FILE_OFFSET_BITS_64 AND __WITH_FILE_OFFSET_BITS_64)
-      SET(_FILE_OFFSET_BITS 64 CACHE INTERNAL "_FILE_OFFSET_BITS macro needed for large files")
-      MESSAGE(STATUS "Checking _FILE_OFFSET_BITS for large files - 64")
-    ELSE(NOT __WITHOUT_FILE_OFFSET_BITS_64 AND __WITH_FILE_OFFSET_BITS_64)
-      SET(_FILE_OFFSET_BITS "" CACHE INTERNAL "_FILE_OFFSET_BITS macro needed for large files")
-      MESSAGE(STATUS "Checking _FILE_OFFSET_BITS for large files - not needed")
-    ENDIF(NOT __WITHOUT_FILE_OFFSET_BITS_64 AND __WITH_FILE_OFFSET_BITS_64)
-  ENDIF(NOT DEFINED _FILE_OFFSET_BITS)
-
-ENDMACRO(CHECK_FILE_OFFSET_BITS)
\ No newline at end of file