AuroraMiddleware/AuroraOpenALSoft
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Enable large file support

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This commit is contained in:
Chris Robinson 2014-08-05 05:05:05 -07:00
parent bda39c5038
commit 951870b189
3 changed files with 58 additions and 0 deletions
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10
CMakeLists.txt
View File

@ -20,6 +20,7 @@ INCLUDE(CheckSymbolExists)
INCLUDE(CheckCCompilerFlag)
INCLUDE(CheckCSourceCompiles)
INCLUDE(CheckTypeSize)
include(CheckFileOffsetBits)
SET(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS TRUE)
@ -36,6 +37,15 @@ ELSE()
SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_GNU_SOURCE=1 -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700")
ENDIF()
# Set defines for large file support
CHECK_FILE_OFFSET_BITS()
IF(_FILE_OFFSET_BITS)
ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=${_FILE_OFFSET_BITS})
SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_FILE_OFFSET_BITS=${_FILE_OFFSET_BITS}")
ENDIF()
ADD_DEFINITIONS(-D_LARGEFILE_SOURCE -D_LARGE_FILES)
SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -D_LARGEFILE_SOURCE -D_LARGE_FILES")
OPTION(ALSOFT_DLOPEN "Check for the dlopen API for loading optional libs" ON)

9
cmake/CheckFileOffsetBits.c Normal file
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@ -0,0 +1,9 @@
#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; }

39
cmake/CheckFileOffsetBits.cmake Normal file
View File

@ -0,0 +1,39 @@
# - 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_BINARY_DIR}
${CMAKE_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_BINARY_DIR}
${CMAKE_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)