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-rw-r--r--config/cmake/ConfigureChecks.cmake113
-rw-r--r--config/cmake/H5pubconf.h.in3
-rw-r--r--config/cmake/HDFTests.c48
3 files changed, 37 insertions, 127 deletions
diff --git a/config/cmake/ConfigureChecks.cmake b/config/cmake/ConfigureChecks.cmake
index 5975533..a004c76 100644
--- a/config/cmake/ConfigureChecks.cmake
+++ b/config/cmake/ConfigureChecks.cmake
@@ -212,86 +212,51 @@ macro (HDF_FUNCTION_TEST OTHER_TEST)
endmacro ()
#-----------------------------------------------------------------------------
-# Check for large file support
+# Platform-specific flags
#-----------------------------------------------------------------------------
-# The linux-lfs option is deprecated.
-set (LINUX_LFS 0)
-
set (HDF_EXTRA_C_FLAGS)
-set (HDF_EXTRA_FLAGS)
-if (MINGW OR NOT WINDOWS)
- if (CMAKE_SYSTEM_NAME MATCHES "Linux")
- # Linux Specific flags
- # This was originally defined as _POSIX_SOURCE which was updated to
- # _POSIX_C_SOURCE=199506L to expose a greater amount of POSIX
- # functionality so clock_gettime and CLOCK_MONOTONIC are defined
- # correctly. This was later updated to 200112L so that
- # posix_memalign() is visible for the direct VFD code on Linux
- # systems.
- # POSIX feature information can be found in the gcc manual at:
- # http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html
- set (HDF_EXTRA_C_FLAGS -D_POSIX_C_SOURCE=200809L)
-
- # Need to add this so that O_DIRECT is visible for the direct
- # VFD on Linux systems.
- set (HDF_EXTRA_C_FLAGS ${HDF_EXTRA_C_FLAGS} -D_GNU_SOURCE)
-
- option (HDF_ENABLE_LARGE_FILE "Enable support for large (64-bit) files on Linux." ON)
- mark_as_advanced (HDF_ENABLE_LARGE_FILE)
- if (HDF_ENABLE_LARGE_FILE AND NOT DEFINED TEST_LFS_WORKS_RUN)
- set (msg "Performing TEST_LFS_WORKS")
- try_run (TEST_LFS_WORKS_RUN TEST_LFS_WORKS_COMPILE
- ${CMAKE_BINARY_DIR}
- ${HDF_RESOURCES_DIR}/HDFTests.c
- COMPILE_DEFINITIONS "-DTEST_LFS_WORKS"
- )
- # The LARGEFILE definitions were from the transition period
- # and are probably no longer needed. The FILE_OFFSET_BITS
- # check should be generalized for all POSIX systems as it
- # is in the Autotools.
- if (TEST_LFS_WORKS_COMPILE)
- if (TEST_LFS_WORKS_RUN MATCHES 0)
- set (TEST_LFS_WORKS 1 CACHE INTERNAL ${msg})
- set (LARGEFILE 1)
- set (HDF_EXTRA_FLAGS ${HDF_EXTRA_FLAGS} -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE)
- message (VERBOSE "${msg}... yes")
- else ()
- set (TEST_LFS_WORKS "" CACHE INTERNAL ${msg})
- message (VERBOSE "${msg}... no")
- file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
- "Test TEST_LFS_WORKS Run failed with the following exit code:\n ${TEST_LFS_WORKS_RUN}\n"
- )
- endif ()
- else ()
- set (TEST_LFS_WORKS "" CACHE INTERNAL ${msg})
- message (VERBOSE "${msg}... no")
- file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
- "Test TEST_LFS_WORKS Compile failed\n"
- )
- endif ()
- endif ()
- set (CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} ${HDF_EXTRA_FLAGS})
- endif ()
+# Linux-specific flags
+if (CMAKE_SYSTEM_NAME MATCHES "Linux")
+ # This was originally defined as _POSIX_SOURCE which was updated to
+ # _POSIX_C_SOURCE=199506L to expose a greater amount of POSIX
+ # functionality so clock_gettime and CLOCK_MONOTONIC are defined
+ # correctly. This was later updated to 200112L so that
+ # posix_memalign() is visible for the direct VFD code on Linux
+ # systems.
+ # POSIX feature information can be found in the gcc manual at:
+ # http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html
+ set (HDF_EXTRA_C_FLAGS -D_POSIX_C_SOURCE=200809L)
+
+ # Need to add this so that O_DIRECT is visible for the direct
+ # VFD on Linux systems.
+ set (HDF_EXTRA_C_FLAGS ${HDF_EXTRA_C_FLAGS} -D_GNU_SOURCE)
+
+ # Set up large file support. This is only necessary on 32-bit systems
+ # but is used on all Linux systems. It has no effect on 64-bit systems
+ # so it's not worth hacking up a 32/64-bit test to selectively include it.
+ #
+ # The library currently does not use any of the 64-flavored API calls
+ # or types
+ set (HDF_EXTRA_C_FLAGS ${HDF_EXTRA_C_FLAGS} -D_LARGEFILE_SOURCE)
+ set (HDF_EXTRA_C_FLAGS ${HDF_EXTRA_C_FLAGS} -D_FILE_OFFSET_BITS=64)
+
+ set (CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} ${HDF_EXTRA_C_FLAGS})
endif ()
-#-----------------------------------------------------------------------------
-# Check for HAVE_OFF64_T functionality
-#-----------------------------------------------------------------------------
-if (MINGW OR NOT WINDOWS)
- HDF_FUNCTION_TEST (HAVE_OFF64_T)
- if (${HDF_PREFIX}_HAVE_OFF64_T)
- CHECK_FUNCTION_EXISTS (lseek64 ${HDF_PREFIX}_HAVE_LSEEK64)
- endif ()
+# As of 2024, both AIX and Solaris are uncommon, but still exist! The default
+# compiler options are also often set to -m32, which produces 32-bit binaries.
- CHECK_FUNCTION_EXISTS (fseeko ${HDF_PREFIX}_HAVE_FSEEKO)
+# 32-bit AIX compiles might require _LARGE_FILES, but we don't have a system on
+# which to test this (yet).
+#
+# https://www.ibm.com/docs/en/aix/7.1?topic=volumes-writing-programs-that-access-large-files
- CHECK_STRUCT_HAS_MEMBER("struct stat64" st_blocks "sys/types.h;sys/stat.h" HAVE_STAT64_STRUCT)
- if (HAVE_STAT64_STRUCT)
- CHECK_FUNCTION_EXISTS (stat64 ${HDF_PREFIX}_HAVE_STAT64)
- endif ()
-endif ()
+# 32-bit Solaris probably needs _LARGEFILE_SOURCE and _FILE_OFFSET_BITS=64,
+# as in Linux, above.
+#
+# https://docs.oracle.com/cd/E23824_01/html/821-1474/lfcompile-5.html
#-----------------------------------------------------------------------------
# Check the size in bytes of all the int and float types
@@ -358,10 +323,6 @@ if (MINGW OR NOT WINDOWS)
endif ()
HDF_CHECK_TYPE_SIZE (off_t ${HDF_PREFIX}_SIZEOF_OFF_T)
-HDF_CHECK_TYPE_SIZE (off64_t ${HDF_PREFIX}_SIZEOF_OFF64_T)
-if (NOT ${HDF_PREFIX}_SIZEOF_OFF64_T)
- set (${HDF_PREFIX}_SIZEOF_OFF64_T 0)
-endif ()
HDF_CHECK_TYPE_SIZE (time_t ${HDF_PREFIX}_SIZEOF_TIME_T)
#-----------------------------------------------------------------------------
diff --git a/config/cmake/H5pubconf.h.in b/config/cmake/H5pubconf.h.in
index 33522a4..f835da1 100644
--- a/config/cmake/H5pubconf.h.in
+++ b/config/cmake/H5pubconf.h.in
@@ -538,9 +538,6 @@
#define H5_SIZEOF_LONG_LONG 8
#endif
-/* The size of `off64_t', as computed by sizeof. */
-#cmakedefine H5_SIZEOF_OFF64_T @H5_SIZEOF_OFF64_T@
-
/* The size of `off_t', as computed by sizeof. */
#cmakedefine H5_SIZEOF_OFF_T @H5_SIZEOF_OFF_T@
diff --git a/config/cmake/HDFTests.c b/config/cmake/HDFTests.c
index 095f113..3d16721 100644
--- a/config/cmake/HDFTests.c
+++ b/config/cmake/HDFTests.c
@@ -89,17 +89,6 @@ int main ()
#endif /* DEV_T_IS_SCALAR */
-#ifdef HAVE_OFF64_T
-
-#include <sys/types.h>
-
-int main(void)
-{
- off64_t n = 0;
- return (int)n;
-}
-#endif
-
#ifdef TEST_DIRECT_VFD_WORKS
#include <sys/types.h>
@@ -138,43 +127,6 @@ main(void)
}
#endif
-#ifdef TEST_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>
-
-#define OFF_T_64 (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
-
-int main(int argc, char **argv)
-{
-
- /* Check that off_t can hold 2^63 - 1 and perform basic operations... */
- 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 HAVE_IOEO
#include <windows.h>
generated by cgit v0.12 at 2025-02-16 14:10:33 (GMT)