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ENH: Moved test for large file support into kwsysPlatformCxxTests.cxx with name KWSYS_LFS_WORKS.

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This commit is contained in:
Brad King 2006-08-25 16:00:10 -04:00
parent 6c75c03143
commit ffb1a9f80a
4 changed files with 56 additions and 46 deletions
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40
Source/kwsys/CMakeLists.txt
View File

@ -142,6 +142,9 @@ IF(KWSYS_STANDALONE)
ENDIF(BUILD_TESTING)
ENDIF(KWSYS_STANDALONE)
# Include helper macros.
INCLUDE(${CMAKE_CURRENT_SOURCE_DIR}/kwsysPlatformCxxTests.cmake)
# Do full dependency headers.
INCLUDE_REGULAR_EXPRESSION("^.*$")
@ -241,22 +244,6 @@ IF(NOT KWSYS_IN_SOURCE_BUILD)
${PROJECT_BINARY_DIR}/kwsysPrivate.h COPY_ONLY IMMEDIATE)
ENDIF(NOT KWSYS_IN_SOURCE_BUILD)
SET(KWSYS_REQUIRE_LARGE_FILE_SUPPORT 0)
IF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)
MESSAGE(STATUS "Skip large files support because CMake is earlier than 2.4")
ELSE("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)
INCLUDE(${CMAKE_CURRENT_SOURCE_DIR}/CheckCXXSourceRuns.cmake)
FILE(READ "${CMAKE_CURRENT_SOURCE_DIR}/RequireLargeFilesSupport.cxx"
__kwsys_require_large_files_support)
CHECK_CXX_SOURCE_RUNS("${__kwsys_require_large_files_support}"
REQUIRE_LARGE_FILE_SUPPORT
"Support for 64 bit file systems")
IF(REQUIRE_LARGE_FILE_SUPPORT)
SET(KWSYS_REQUIRE_LARGE_FILE_SUPPORT 1)
ENDIF(REQUIRE_LARGE_FILE_SUPPORT)
ENDIF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4)
#-----------------------------------------------------------------------------
# We require ANSI support from the C compiler. Add any needed flags.
IF(CMAKE_ANSI_CFLAGS)
@ -280,11 +267,30 @@ IF(NOT CMAKE_COMPILER_IS_GNUCXX)
ENDIF(CMAKE_SYSTEM MATCHES "OSF1-V.*")
ENDIF(NOT CMAKE_COMPILER_IS_GNUCXX)
#-----------------------------------------------------------------------------
# Configure Large File Support.
SET(KWSYS_LFS_REQUESTED 1)
SET(KWSYS_LFS_AVAILABLE 0)
IF(KWSYS_LFS_REQUESTED)
# Large File Support is requested.
SET(KWSYS_LFS_REQUESTED 1)
# Check for large file support.
KWSYS_PLATFORM_CXX_TEST_RUN(KWSYS_LFS_WORKS
"Checking for Large File Support" DIRECT)
IF(KWSYS_LFS_WORKS)
SET(KWSYS_LFS_AVAILABLE 1)
ENDIF(KWSYS_LFS_WORKS)
ELSE(KWSYS_LFS_REQUESTED)
# Large File Support is not requested.
SET(KWSYS_LFS_REQUESTED 0)
ENDIF(KWSYS_LFS_REQUESTED)
#-----------------------------------------------------------------------------
# Configure the standard library header wrappers based on compiler's
# capabilities and parent project's request. Enforce 0/1 as only
# possible values for configuration into Configure.hxx.
INCLUDE(${CMAKE_CURRENT_SOURCE_DIR}/kwsysPlatformCxxTests.cmake)
KWSYS_PLATFORM_CXX_TEST(KWSYS_STL_HAVE_STD
"Checking whether STL classes are in std namespace" DIRECT)

2
Source/kwsys/Configure.h.in
View File

@ -24,7 +24,7 @@
/* This is a support for files on the disk that are larger than 2GB. Since
this is the first place that any include should happen, do this here. */
#if @KWSYS_REQUIRE_LARGE_FILE_SUPPORT@
#if @KWSYS_LFS_AVAILABLE@
# ifndef _LARGEFILE_SOURCE
# define _LARGEFILE_SOURCE
# endif

28
Source/kwsys/RequireLargeFilesSupport.cxx
View File

@ -1,28 +0,0 @@
#define _LARGEFILE_SOURCE
#define _LARGE_FILES
#define _FILE_OFFSET_BITS 64
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <stdio.h>
int main( int, char **argv )
{
// check that off_t can hold 2^63 - 1 and perform basic operations...
#define OFF_T_64 (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
if (OFF_T_64 % 2147483647 != 1)
return 1;
// stat breaks on SCO OpenServer
struct stat buf;
stat( argv[0], &buf );
if (!S_ISREG(buf.st_mode))
return 2;
FILE *file = fopen( argv[0], "r" );
off_t offset = ftello( file );
fseek( file, offset, SEEK_CUR );
fclose( file );
return 0;
}

32
Source/kwsys/kwsysPlatformCxxTests.cxx
View File

@ -275,6 +275,38 @@ int main()
}
#endif
#ifdef TEST_KWSYS_LFS_WORKS
/* Return 0 when LFS is available and 1 otherwise. */
#define _LARGEFILE_SOURCE
#define _LARGEFILE64_SOURCE
#define _LARGE_FILES
#define _FILE_OFFSET_BITS 64
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <stdio.h>
int main(int, char **argv)
{
/* check that off_t can hold 2^63 - 1 and perform basic operations... */
#define OFF_T_64 (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
if (OFF_T_64 % 2147483647 != 1)
return 1;
// stat breaks on SCO OpenServer
struct stat buf;
stat( argv[0], &buf );
if (!S_ISREG(buf.st_mode))
return 2;
FILE *file = fopen( argv[0], "r" );
off_t offset = ftello( file );
fseek( file, offset, SEEK_CUR );
fclose( file );
return 0;
}
#endif
#ifdef TEST_KWSYS_CXX_TYPE_INFO
/* Collect fundamental type information and save it to a CMake script. */