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mariadb/configure.cmake
Marko Mäkelä 10dd290b4b MDEV-17380 innodb_flush_neighbors=ON should be ignored on SSD 
For tablespaces that do not reside on spinning storage, it does
not make sense to attempt to write nearby pages when writing out
dirty pages from the InnoDB buffer pool. It is actually detrimental
to performance and to the life span of flash ROM storage.

With this change, MariaDB will detect whether an InnoDB file resides
on solid-state storage. The detection has been implemented for Linux
and Microsoft Windows. For other systems, we will err on the safe side
and assume that files reside on SSD.

As part of this change, we will reduce the number of fstat() calls
when opening data files on POSIX systems and slightly clean up some
file I/O code.

FIXME: os_is_sparse_file_supported() on POSIX works in a destructive
manner. Thus, we can only invoke it when creating files, not when
opening them.

For diagnostics, we introduce the column ON_SSD to the table
INFORMATION_SCHEMA.INNODB_TABLESPACES_SCRUBBING. The table
INNODB_SYS_TABLESPACES might seem more appropriate, but its purpose
is to reflect the contents of the InnoDB system table SYS_TABLESPACES,
which we would like to remove at some point.

On Microsoft Windows, querying StorageDeviceSeekPenaltyProperty
sometimes returns ERROR_GEN_FAILURE instead of ERROR_INVALID_FUNCTION
or ERROR_NOT_SUPPORTED. We will silently ignore also this error,
and assume that the file does not reside on SSD.

On Linux, the detection will be based on the files
/sys/block/*/queue/rotational and /sys/block/*/dev.
Especially for USB storage, it is possible that
/sys/block/*/queue/rotational will wrongly report 1 instead of 0.

fil_node_t::on_ssd: Whether the InnoDB data file resides on
solid-state storage.

fil_system_t::ssd: Collection of Linux block devices that reside on
non-rotational storage.

fil_system_t::create(): Detect ssd on Linux based on the contents
of /sys/block/*/queue/rotational and /sys/block/*/dev.

fil_system_t::is_ssd(dev_t): Determine if a Linux block device is
non-rotational. Partitions will be identified with the containing
block device by assuming that the least significant 4 bits of the
minor number identify a partition, and that the "partition number"
of the entire device is 0.
2019-04-01 12:00:56 +03:00

1019 lines
31 KiB
CMake
Raw Blame History

# Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
INCLUDE (CheckCSourceCompiles)
INCLUDE (CheckCXXSourceCompiles)
INCLUDE (CheckStructHasMember)
INCLUDE (CheckLibraryExists)
INCLUDE (CheckFunctionExists)
INCLUDE (CheckCCompilerFlag)
INCLUDE (CheckCSourceRuns)
INCLUDE (CheckSymbolExists)
# WITH_PIC options.Not of much use, PIC is taken care of on platforms
# where it makes sense anyway.
IF(UNIX)
IF(APPLE)
# OSX executable are always PIC
SET(WITH_PIC ON)
ELSE()
OPTION(WITH_PIC "Generate PIC objects" OFF)
IF(WITH_PIC)
SET(CMAKE_C_FLAGS
"${CMAKE_C_FLAGS} ${CMAKE_SHARED_LIBRARY_C_FLAGS}")
SET(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} ${CMAKE_SHARED_LIBRARY_CXX_FLAGS}")
ENDIF()
ENDIF()
ENDIF()
# System type affects version_compile_os variable
IF(NOT SYSTEM_TYPE)
IF(PLATFORM)
SET(SYSTEM_TYPE ${PLATFORM})
ELSE()
SET(SYSTEM_TYPE ${CMAKE_SYSTEM_NAME})
ENDIF()
ENDIF()
IF(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang" AND (NOT MSVC))
# MySQL "canonical" GCC flags. At least -fno-rtti flag affects
# ABI and cannot be simply removed.
SET(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -fno-rtti")
IF (CMAKE_EXE_LINKER_FLAGS MATCHES " -static "
OR CMAKE_EXE_LINKER_FLAGS MATCHES " -static$")
SET(HAVE_DLOPEN FALSE CACHE "Disable dlopen due to -static flag" FORCE)
SET(WITHOUT_DYNAMIC_PLUGINS TRUE)
ENDIF()
ENDIF()
# workaround for old gcc on x86, gcc atomic ops only work under -march=i686
IF(CMAKE_SYSTEM_PROCESSOR STREQUAL "i686" AND CMAKE_COMPILER_IS_GNUCC AND
CMAKE_C_COMPILER_VERSION VERSION_LESS "4.4.0")
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=i686")
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=i686")
# query_response_time.cc causes "error: unable to find a register to spill"
SET(PLUGIN_QUERY_RESPONSE_TIME NO CACHE BOOL "Disabled, gcc is too old")
ENDIF()
IF(WITHOUT_DYNAMIC_PLUGINS)
MESSAGE("Dynamic plugins are disabled.")
ENDIF(WITHOUT_DYNAMIC_PLUGINS)
# Large files, common flag
SET(_LARGEFILE_SOURCE 1)
# If finds the size of a type, set SIZEOF_<type> and HAVE_<type>
FUNCTION(MY_CHECK_TYPE_SIZE type defbase)
CHECK_TYPE_SIZE("${type}" SIZEOF_${defbase})
IF(SIZEOF_${defbase})
SET(HAVE_${defbase} 1 PARENT_SCOPE)
ENDIF()
ENDFUNCTION()
# Same for structs, setting HAVE_STRUCT_<name> instead
FUNCTION(MY_CHECK_STRUCT_SIZE type defbase)
CHECK_TYPE_SIZE("struct ${type}" SIZEOF_${defbase})
IF(SIZEOF_${defbase})
SET(HAVE_STRUCT_${defbase} 1 PARENT_SCOPE)
ENDIF()
ENDFUNCTION()
# Searches function in libraries
# if function is found, sets output parameter result to the name of the library
# if function is found in libc, result will be empty
FUNCTION(MY_SEARCH_LIBS func libs result)
IF(${${result}})
# Library is already found or was predefined
RETURN()
ENDIF()
CHECK_FUNCTION_EXISTS(${func} HAVE_${func}_IN_LIBC)
IF(HAVE_${func}_IN_LIBC)
SET(${result} "" PARENT_SCOPE)
RETURN()
ENDIF()
FOREACH(lib ${libs})
CHECK_LIBRARY_EXISTS(${lib} ${func} "" HAVE_${func}_IN_${lib})
IF(HAVE_${func}_IN_${lib})
SET(${result} ${lib} PARENT_SCOPE)
SET(HAVE_${result} 1 PARENT_SCOPE)
RETURN()
ENDIF()
ENDFOREACH()
ENDFUNCTION()
# Find out which libraries to use.
IF(UNIX)
MY_SEARCH_LIBS(floor m LIBM)
IF(NOT LIBM)
MY_SEARCH_LIBS(__infinity m LIBM)
ENDIF()
MY_SEARCH_LIBS(gethostbyname_r "nsl_r;nsl" LIBNSL)
MY_SEARCH_LIBS(bind "bind;socket" LIBBIND)
MY_SEARCH_LIBS(crypt crypt LIBCRYPT)
MY_SEARCH_LIBS(setsockopt socket LIBSOCKET)
MY_SEARCH_LIBS(dlopen dl LIBDL)
MY_SEARCH_LIBS(sched_yield rt LIBRT)
IF(NOT LIBRT)
MY_SEARCH_LIBS(clock_gettime rt LIBRT)
ENDIF()
FIND_PACKAGE(Threads)
SET(CMAKE_REQUIRED_LIBRARIES
${LIBM} ${LIBNSL} ${LIBBIND} ${LIBCRYPT} ${LIBSOCKET} ${LIBDL} ${CMAKE_THREAD_LIBS_INIT} ${LIBRT} ${LIBEXECINFO})
# Need explicit pthread for gcc -fsanitize=address
IF(CMAKE_USE_PTHREADS_INIT AND CMAKE_C_FLAGS MATCHES "-fsanitize=")
SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} pthread)
ENDIF()
IF(CMAKE_REQUIRED_LIBRARIES)
LIST(REMOVE_DUPLICATES CMAKE_REQUIRED_LIBRARIES)
ENDIF()
LINK_LIBRARIES(${CMAKE_THREAD_LIBS_INIT})
OPTION(WITH_LIBWRAP "Compile with tcp wrappers support" OFF)
IF(WITH_LIBWRAP)
SET(SAVE_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
SET(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} wrap)
CHECK_C_SOURCE_COMPILES(
"
#include <sys/types.h>
#include <tcpd.h>
int allow_severity = 0;
int deny_severity = 0;
int main()
{
hosts_access(0);
}"
HAVE_LIBWRAP)
SET(CMAKE_REQUIRED_LIBRARIES ${SAVE_CMAKE_REQUIRED_LIBRARIES})
IF(HAVE_LIBWRAP)
SET(MYSYS_LIBWRAP_SOURCE ${CMAKE_SOURCE_DIR}/mysys/my_libwrap.c)
SET(LIBWRAP "wrap")
ENDIF()
ENDIF()
ENDIF()
#
# Tests for header files
#
INCLUDE (CheckIncludeFiles)
INCLUDE (CheckIncludeFileCXX)
CHECK_INCLUDE_FILES ("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS)
CHECK_INCLUDE_FILES (sys/types.h HAVE_SYS_TYPES_H)
CHECK_INCLUDE_FILES (alloca.h HAVE_ALLOCA_H)
CHECK_INCLUDE_FILES (arpa/inet.h HAVE_ARPA_INET_H)
CHECK_INCLUDE_FILES (crypt.h HAVE_CRYPT_H)
CHECK_INCLUDE_FILES (dirent.h HAVE_DIRENT_H)
CHECK_INCLUDE_FILES (dlfcn.h HAVE_DLFCN_H)
CHECK_INCLUDE_FILES (execinfo.h HAVE_EXECINFO_H)
CHECK_INCLUDE_FILES (fcntl.h HAVE_FCNTL_H)
CHECK_INCLUDE_FILES (fenv.h HAVE_FENV_H)
CHECK_INCLUDE_FILES (float.h HAVE_FLOAT_H)
CHECK_INCLUDE_FILES (fpu_control.h HAVE_FPU_CONTROL_H)
CHECK_INCLUDE_FILES (grp.h HAVE_GRP_H)
CHECK_INCLUDE_FILES (ieeefp.h HAVE_IEEEFP_H)
CHECK_INCLUDE_FILES (inttypes.h HAVE_INTTYPES_H)
CHECK_INCLUDE_FILES (langinfo.h HAVE_LANGINFO_H)
CHECK_INCLUDE_FILES (link.h HAVE_LINK_H)
CHECK_INCLUDE_FILES (linux/unistd.h HAVE_LINUX_UNISTD_H)
CHECK_INCLUDE_FILES (limits.h HAVE_LIMITS_H)
CHECK_INCLUDE_FILES (locale.h HAVE_LOCALE_H)
CHECK_INCLUDE_FILES (malloc.h HAVE_MALLOC_H)
CHECK_INCLUDE_FILES (memory.h HAVE_MEMORY_H)
CHECK_INCLUDE_FILES (ndir.h HAVE_NDIR_H)
CHECK_INCLUDE_FILES (netinet/in.h HAVE_NETINET_IN_H)
CHECK_INCLUDE_FILES (paths.h HAVE_PATHS_H)
CHECK_INCLUDE_FILES (poll.h HAVE_POLL_H)
CHECK_INCLUDE_FILES (sys/poll.h HAVE_SYS_POLL_H)
CHECK_INCLUDE_FILES (pwd.h HAVE_PWD_H)
CHECK_INCLUDE_FILES (sched.h HAVE_SCHED_H)
CHECK_INCLUDE_FILES (select.h HAVE_SELECT_H)
CHECK_INCLUDE_FILES ("sys/types.h;sys/dir.h" HAVE_SYS_DIR_H)
CHECK_INCLUDE_FILES ("sys/types.h;sys/event.h" HAVE_SYS_EVENT_H)
CHECK_INCLUDE_FILES (sys/ndir.h HAVE_SYS_NDIR_H)
CHECK_INCLUDE_FILES (sys/pte.h HAVE_SYS_PTE_H)
CHECK_INCLUDE_FILES (stddef.h HAVE_STDDEF_H)
CHECK_INCLUDE_FILES (stdint.h HAVE_STDINT_H)
CHECK_INCLUDE_FILES (stdlib.h HAVE_STDLIB_H)
CHECK_INCLUDE_FILES (strings.h HAVE_STRINGS_H)
CHECK_INCLUDE_FILES (string.h HAVE_STRING_H)
CHECK_INCLUDE_FILES (synch.h HAVE_SYNCH_H)
CHECK_INCLUDE_FILES (sysent.h HAVE_SYSENT_H)
CHECK_INCLUDE_FILES (sys/file.h HAVE_SYS_FILE_H)
CHECK_INCLUDE_FILES (sys/fpu.h HAVE_SYS_FPU_H)
CHECK_INCLUDE_FILES (sys/ioctl.h HAVE_SYS_IOCTL_H)
CHECK_INCLUDE_FILES ("sys/types.h;sys/ipc.h" HAVE_SYS_IPC_H)
CHECK_INCLUDE_FILES ("sys/types.h;sys/malloc.h" HAVE_SYS_MALLOC_H)
CHECK_INCLUDE_FILES (sys/mman.h HAVE_SYS_MMAN_H)
CHECK_INCLUDE_FILES (sys/prctl.h HAVE_SYS_PRCTL_H)
CHECK_INCLUDE_FILES (sys/resource.h HAVE_SYS_RESOURCE_H)
CHECK_INCLUDE_FILES (sys/select.h HAVE_SYS_SELECT_H)
CHECK_INCLUDE_FILES ("sys/types.h;sys/shm.h" HAVE_SYS_SHM_H)
CHECK_INCLUDE_FILES (sys/socket.h HAVE_SYS_SOCKET_H)
CHECK_INCLUDE_FILES (sys/stat.h HAVE_SYS_STAT_H)
CHECK_INCLUDE_FILES (sys/stream.h HAVE_SYS_STREAM_H)
CHECK_INCLUDE_FILES (sys/syscall.h HAVE_SYS_SYSCALL_H)
CHECK_INCLUDE_FILES (asm/termbits.h HAVE_ASM_TERMBITS_H)
CHECK_INCLUDE_FILES (termbits.h HAVE_TERMBITS_H)
CHECK_INCLUDE_FILES (termios.h HAVE_TERMIOS_H)
CHECK_INCLUDE_FILES (termio.h HAVE_TERMIO_H)
CHECK_INCLUDE_FILES (termcap.h HAVE_TERMCAP_H)
CHECK_INCLUDE_FILES (unistd.h HAVE_UNISTD_H)
CHECK_INCLUDE_FILES (utime.h HAVE_UTIME_H)
CHECK_INCLUDE_FILES (varargs.h HAVE_VARARGS_H)
CHECK_INCLUDE_FILES (sys/time.h HAVE_SYS_TIME_H)
CHECK_INCLUDE_FILES (sys/utime.h HAVE_SYS_UTIME_H)
CHECK_INCLUDE_FILES (sys/wait.h HAVE_SYS_WAIT_H)
CHECK_INCLUDE_FILES (sys/param.h HAVE_SYS_PARAM_H)
CHECK_INCLUDE_FILES (sys/vadvise.h HAVE_SYS_VADVISE_H)
CHECK_INCLUDE_FILES (fnmatch.h HAVE_FNMATCH_H)
CHECK_INCLUDE_FILES (stdarg.h HAVE_STDARG_H)
CHECK_INCLUDE_FILES ("stdlib.h;sys/un.h" HAVE_SYS_UN_H)
CHECK_INCLUDE_FILES (wchar.h HAVE_WCHAR_H)
CHECK_INCLUDE_FILES (wctype.h HAVE_WCTYPE_H)
CHECK_INCLUDE_FILES (sys/sockio.h HAVE_SYS_SOCKIO_H)
CHECK_INCLUDE_FILES (sys/utsname.h HAVE_SYS_UTSNAME_H)
CHECK_INCLUDE_FILES (sys/statvfs.h HAVE_SYS_STATVFS_H)
SET(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} -DPACKAGE=test) # bfd.h is picky
CHECK_INCLUDE_FILES (bfd.h BFD_H_EXISTS)
IF(BFD_H_EXISTS)
IF(NOT_FOR_DISTRIBUTION)
SET(NON_DISTRIBUTABLE_WARNING "GPLv3" CACHE INTERNAL "")
SET(HAVE_BFD_H 1)
ENDIF()
ENDIF()
IF(HAVE_SYS_STREAM_H)
# Needs sys/stream.h on Solaris
CHECK_INCLUDE_FILES ("sys/stream.h;sys/ptem.h" HAVE_SYS_PTEM_H)
ELSE()
CHECK_INCLUDE_FILES (sys/ptem.h HAVE_SYS_PTEM_H)
ENDIF()
# Figure out threading library
#
FIND_PACKAGE (Threads)
FUNCTION(MY_CHECK_PTHREAD_ONCE_INIT)
MY_CHECK_C_COMPILER_FLAG("-Werror")
IF(NOT have_C__Werror)
RETURN()
ENDIF()
SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror")
CHECK_C_SOURCE_COMPILES("
#include <pthread.h>
void foo(void) {}
int main()
{
pthread_once_t once_control = PTHREAD_ONCE_INIT;
pthread_once(&once_control, foo);
return 0;
}"
HAVE_PTHREAD_ONCE_INIT
)
# http://bugs.opensolaris.org/bugdatabase/printableBug.do?bug_id=6611808
IF(NOT HAVE_PTHREAD_ONCE_INIT)
CHECK_C_SOURCE_COMPILES("
#include <pthread.h>
void foo(void) {}
int main()
{
pthread_once_t once_control = { PTHREAD_ONCE_INIT };
pthread_once(&once_control, foo);
return 0;
}"
HAVE_ARRAY_PTHREAD_ONCE_INIT
)
ENDIF()
IF(HAVE_PTHREAD_ONCE_INIT)
SET(PTHREAD_ONCE_INITIALIZER "PTHREAD_ONCE_INIT" PARENT_SCOPE)
ENDIF()
IF(HAVE_ARRAY_PTHREAD_ONCE_INIT)
SET(PTHREAD_ONCE_INITIALIZER "{ PTHREAD_ONCE_INIT }" PARENT_SCOPE)
ENDIF()
ENDFUNCTION()
IF(CMAKE_USE_PTHREADS_INIT)
MY_CHECK_PTHREAD_ONCE_INIT()
ENDIF()
#
# Tests for functions
#
CHECK_FUNCTION_EXISTS (accept4 HAVE_ACCEPT4)
CHECK_FUNCTION_EXISTS (access HAVE_ACCESS)
#CHECK_FUNCTION_EXISTS (aiowait HAVE_AIOWAIT)
CHECK_FUNCTION_EXISTS (alarm HAVE_ALARM)
SET(HAVE_ALLOCA 1)
CHECK_FUNCTION_EXISTS (backtrace HAVE_BACKTRACE)
CHECK_FUNCTION_EXISTS (backtrace_symbols HAVE_BACKTRACE_SYMBOLS)
CHECK_FUNCTION_EXISTS (backtrace_symbols_fd HAVE_BACKTRACE_SYMBOLS_FD)
CHECK_FUNCTION_EXISTS (printstack HAVE_PRINTSTACK)
CHECK_FUNCTION_EXISTS (bfill HAVE_BFILL)
CHECK_FUNCTION_EXISTS (index HAVE_INDEX)
CHECK_FUNCTION_EXISTS (clock_gettime HAVE_CLOCK_GETTIME)
CHECK_FUNCTION_EXISTS (cuserid HAVE_CUSERID)
CHECK_FUNCTION_EXISTS (ftruncate HAVE_FTRUNCATE)
CHECK_FUNCTION_EXISTS (compress HAVE_COMPRESS)
CHECK_FUNCTION_EXISTS (crypt HAVE_CRYPT)
CHECK_FUNCTION_EXISTS (dladdr HAVE_DLADDR)
CHECK_FUNCTION_EXISTS (dlerror HAVE_DLERROR)
CHECK_FUNCTION_EXISTS (dlopen HAVE_DLOPEN)
CHECK_FUNCTION_EXISTS (fchmod HAVE_FCHMOD)
CHECK_FUNCTION_EXISTS (fcntl HAVE_FCNTL)
CHECK_FUNCTION_EXISTS (fdatasync HAVE_FDATASYNC)
CHECK_SYMBOL_EXISTS(fdatasync "unistd.h" HAVE_DECL_FDATASYNC)
CHECK_FUNCTION_EXISTS (fesetround HAVE_FESETROUND)
CHECK_FUNCTION_EXISTS (fedisableexcept HAVE_FEDISABLEEXCEPT)
CHECK_FUNCTION_EXISTS (fseeko HAVE_FSEEKO)
CHECK_FUNCTION_EXISTS (fsync HAVE_FSYNC)
CHECK_FUNCTION_EXISTS (getcwd HAVE_GETCWD)
CHECK_FUNCTION_EXISTS (gethostbyaddr_r HAVE_GETHOSTBYADDR_R)
CHECK_FUNCTION_EXISTS (gethrtime HAVE_GETHRTIME)
CHECK_FUNCTION_EXISTS (getpass HAVE_GETPASS)
CHECK_FUNCTION_EXISTS (getpassphrase HAVE_GETPASSPHRASE)
CHECK_FUNCTION_EXISTS (getpwnam HAVE_GETPWNAM)
CHECK_FUNCTION_EXISTS (getpwuid HAVE_GETPWUID)
CHECK_FUNCTION_EXISTS (getrlimit HAVE_GETRLIMIT)
CHECK_FUNCTION_EXISTS (getifaddrs HAVE_GETIFADDRS)
CHECK_FUNCTION_EXISTS (getrusage HAVE_GETRUSAGE)
CHECK_FUNCTION_EXISTS (getwd HAVE_GETWD)
CHECK_FUNCTION_EXISTS (gmtime_r HAVE_GMTIME_R)
CHECK_FUNCTION_EXISTS (initgroups HAVE_INITGROUPS)
CHECK_FUNCTION_EXISTS (ldiv HAVE_LDIV)
CHECK_FUNCTION_EXISTS (localtime_r HAVE_LOCALTIME_R)
CHECK_FUNCTION_EXISTS (lstat HAVE_LSTAT)
CHECK_FUNCTION_EXISTS (madvise HAVE_MADVISE)
CHECK_FUNCTION_EXISTS (mallinfo HAVE_MALLINFO)
CHECK_FUNCTION_EXISTS (memcpy HAVE_MEMCPY)
CHECK_FUNCTION_EXISTS (memmove HAVE_MEMMOVE)
CHECK_FUNCTION_EXISTS (mkstemp HAVE_MKSTEMP)
CHECK_FUNCTION_EXISTS (mkostemp HAVE_MKOSTEMP)
CHECK_FUNCTION_EXISTS (mlock HAVE_MLOCK)
CHECK_FUNCTION_EXISTS (mlockall HAVE_MLOCKALL)
CHECK_FUNCTION_EXISTS (mmap HAVE_MMAP)
CHECK_FUNCTION_EXISTS (mmap64 HAVE_MMAP64)
CHECK_FUNCTION_EXISTS (perror HAVE_PERROR)
CHECK_FUNCTION_EXISTS (poll HAVE_POLL)
CHECK_FUNCTION_EXISTS (posix_fallocate HAVE_POSIX_FALLOCATE)
CHECK_FUNCTION_EXISTS (pread HAVE_PREAD)
CHECK_FUNCTION_EXISTS (pthread_attr_create HAVE_PTHREAD_ATTR_CREATE)
CHECK_FUNCTION_EXISTS (pthread_attr_getstacksize HAVE_PTHREAD_ATTR_GETSTACKSIZE)
CHECK_FUNCTION_EXISTS (pthread_attr_setscope HAVE_PTHREAD_ATTR_SETSCOPE)
CHECK_FUNCTION_EXISTS (pthread_attr_getguardsize HAVE_PTHREAD_ATTR_GETGUARDSIZE)
CHECK_FUNCTION_EXISTS (pthread_attr_setstacksize HAVE_PTHREAD_ATTR_SETSTACKSIZE)
CHECK_FUNCTION_EXISTS (pthread_condattr_create HAVE_PTHREAD_CONDATTR_CREATE)
CHECK_FUNCTION_EXISTS (pthread_key_delete HAVE_PTHREAD_KEY_DELETE)
CHECK_FUNCTION_EXISTS (pthread_rwlock_rdlock HAVE_PTHREAD_RWLOCK_RDLOCK)
CHECK_FUNCTION_EXISTS (pthread_sigmask HAVE_PTHREAD_SIGMASK)
CHECK_FUNCTION_EXISTS (pthread_yield_np HAVE_PTHREAD_YIELD_NP)
CHECK_FUNCTION_EXISTS (putenv HAVE_PUTENV)
CHECK_FUNCTION_EXISTS (readlink HAVE_READLINK)
CHECK_FUNCTION_EXISTS (realpath HAVE_REALPATH)
CHECK_FUNCTION_EXISTS (rename HAVE_RENAME)
CHECK_FUNCTION_EXISTS (rwlock_init HAVE_RWLOCK_INIT)
CHECK_FUNCTION_EXISTS (sched_yield HAVE_SCHED_YIELD)
CHECK_FUNCTION_EXISTS (setenv HAVE_SETENV)
CHECK_FUNCTION_EXISTS (setlocale HAVE_SETLOCALE)
CHECK_FUNCTION_EXISTS (sigaction HAVE_SIGACTION)
CHECK_FUNCTION_EXISTS (sigthreadmask HAVE_SIGTHREADMASK)
CHECK_FUNCTION_EXISTS (sigwait HAVE_SIGWAIT)
CHECK_FUNCTION_EXISTS (sigwaitinfo HAVE_SIGWAITINFO)
CHECK_FUNCTION_EXISTS (sigset HAVE_SIGSET)
CHECK_FUNCTION_EXISTS (sleep HAVE_SLEEP)
CHECK_FUNCTION_EXISTS (snprintf HAVE_SNPRINTF)
CHECK_FUNCTION_EXISTS (stpcpy HAVE_STPCPY)
CHECK_FUNCTION_EXISTS (strcoll HAVE_STRCOLL)
CHECK_FUNCTION_EXISTS (strerror HAVE_STRERROR)
CHECK_FUNCTION_EXISTS (strnlen HAVE_STRNLEN)
CHECK_FUNCTION_EXISTS (strpbrk HAVE_STRPBRK)
CHECK_FUNCTION_EXISTS (strtok_r HAVE_STRTOK_R)
CHECK_FUNCTION_EXISTS (strtoll HAVE_STRTOLL)
CHECK_FUNCTION_EXISTS (strtoul HAVE_STRTOUL)
CHECK_FUNCTION_EXISTS (strtoull HAVE_STRTOULL)
CHECK_FUNCTION_EXISTS (strcasecmp HAVE_STRCASECMP)
CHECK_FUNCTION_EXISTS (tell HAVE_TELL)
CHECK_FUNCTION_EXISTS (thr_setconcurrency HAVE_THR_SETCONCURRENCY)
CHECK_FUNCTION_EXISTS (thr_yield HAVE_THR_YIELD)
CHECK_FUNCTION_EXISTS (vasprintf HAVE_VASPRINTF)
CHECK_FUNCTION_EXISTS (vsnprintf HAVE_VSNPRINTF)
CHECK_FUNCTION_EXISTS (memalign HAVE_MEMALIGN)
CHECK_FUNCTION_EXISTS (nl_langinfo HAVE_NL_LANGINFO)
IF(HAVE_SYS_EVENT_H)
CHECK_FUNCTION_EXISTS (kqueue HAVE_KQUEUE)
ENDIF()
# readdir_r might exist, but be marked deprecated
SET(CMAKE_REQUIRED_FLAGS -Werror)
CHECK_CXX_SOURCE_COMPILES(
"#include <dirent.h>
int main() {
readdir_r(0,0,0);
return 0;
}" HAVE_READDIR_R)
SET(CMAKE_REQUIRED_FLAGS)
#--------------------------------------------------------------------
# Support for WL#2373 (Use cycle counter for timing)
#--------------------------------------------------------------------
CHECK_INCLUDE_FILES(time.h HAVE_TIME_H)
CHECK_INCLUDE_FILES(sys/time.h HAVE_SYS_TIME_H)
CHECK_INCLUDE_FILES(sys/times.h HAVE_SYS_TIMES_H)
CHECK_INCLUDE_FILES(asm/msr.h HAVE_ASM_MSR_H)
#msr.h has rdtscll()
CHECK_INCLUDE_FILES(ia64intrin.h HAVE_IA64INTRIN_H)
CHECK_FUNCTION_EXISTS(times HAVE_TIMES)
CHECK_FUNCTION_EXISTS(gettimeofday HAVE_GETTIMEOFDAY)
CHECK_FUNCTION_EXISTS(read_real_time HAVE_READ_REAL_TIME)
# This should work on AIX.
CHECK_FUNCTION_EXISTS(ftime HAVE_FTIME)
# This is still a normal call for milliseconds.
CHECK_FUNCTION_EXISTS(time HAVE_TIME)
# We can use time() on Macintosh if there is no ftime().
CHECK_FUNCTION_EXISTS(rdtscll HAVE_RDTSCLL)
# I doubt that we'll ever reach the check for this.
#
# Tests for symbols
#
#CHECK_SYMBOL_EXISTS(sys_errlist "stdio.h" HAVE_SYS_ERRLIST)
CHECK_SYMBOL_EXISTS(madvise "sys/mman.h" HAVE_DECL_MADVISE)
CHECK_SYMBOL_EXISTS(tzname "time.h" HAVE_TZNAME)
CHECK_SYMBOL_EXISTS(lrand48 "stdlib.h" HAVE_LRAND48)
CHECK_SYMBOL_EXISTS(getpagesize "unistd.h" HAVE_GETPAGESIZE)
CHECK_SYMBOL_EXISTS(TIOCGWINSZ "sys/ioctl.h" GWINSZ_IN_SYS_IOCTL)
CHECK_SYMBOL_EXISTS(FIONREAD "sys/ioctl.h" FIONREAD_IN_SYS_IOCTL)
CHECK_SYMBOL_EXISTS(TIOCSTAT "sys/ioctl.h" TIOCSTAT_IN_SYS_IOCTL)
CHECK_SYMBOL_EXISTS(FIONREAD "sys/filio.h" FIONREAD_IN_SYS_FILIO)
CHECK_SYMBOL_EXISTS(gettimeofday "sys/time.h" HAVE_GETTIMEOFDAY)
#
# Test for endianness
#
INCLUDE(TestBigEndian)
IF(APPLE)
# Cannot run endian test on universal PPC/Intel binaries
# would return inconsistent result.
# config.h.cmake includes a special #ifdef for Darwin
ELSE()
TEST_BIG_ENDIAN(WORDS_BIGENDIAN)
ENDIF()
#
# Tests for type sizes (and presence)
#
INCLUDE (CheckTypeSize)
set(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
-D_LARGEFILE_SOURCE -D_LARGE_FILES -D_FILE_OFFSET_BITS=64
-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS)
SET(CMAKE_EXTRA_INCLUDE_FILES signal.h)
MY_CHECK_TYPE_SIZE(sigset_t SIGSET_T)
IF(NOT SIZEOF_SIGSET_T)
SET(sigset_t int)
ENDIF()
MY_CHECK_TYPE_SIZE(mode_t MODE_T)
IF(NOT SIZEOF_MODE_T)
SET(mode_t int)
ENDIF()
MY_CHECK_TYPE_SIZE(sighandler_t SIGHANDLER_T)
IF(HAVE_NETINET_IN_H)
SET(CMAKE_EXTRA_INCLUDE_FILES netinet/in.h)
MY_CHECK_TYPE_SIZE(in_addr_t IN_ADDR_T)
ENDIF(HAVE_NETINET_IN_H)
IF(HAVE_STDINT_H)
SET(CMAKE_EXTRA_INCLUDE_FILES stdint.h)
ENDIF(HAVE_STDINT_H)
SET(HAVE_VOIDP 1)
SET(HAVE_CHARP 1)
SET(HAVE_LONG 1)
IF(NOT APPLE)
MY_CHECK_TYPE_SIZE("void *" VOIDP)
MY_CHECK_TYPE_SIZE("char *" CHARP)
MY_CHECK_TYPE_SIZE(long LONG)
MY_CHECK_TYPE_SIZE(size_t SIZE_T)
ENDIF()
MY_CHECK_TYPE_SIZE(short SHORT)
MY_CHECK_TYPE_SIZE(int INT)
MY_CHECK_TYPE_SIZE("long long" LONG_LONG)
SET(CMAKE_EXTRA_INCLUDE_FILES stdio.h sys/types.h)
MY_CHECK_TYPE_SIZE(off_t OFF_T)
MY_CHECK_TYPE_SIZE(uchar UCHAR)
MY_CHECK_TYPE_SIZE(uint UINT)
MY_CHECK_TYPE_SIZE(ulong ULONG)
MY_CHECK_TYPE_SIZE(int8 INT8)
MY_CHECK_TYPE_SIZE(uint8 UINT8)
MY_CHECK_TYPE_SIZE(int16 INT16)
MY_CHECK_TYPE_SIZE(uint16 UINT16)
MY_CHECK_TYPE_SIZE(int32 INT32)
MY_CHECK_TYPE_SIZE(uint32 UINT32)
MY_CHECK_TYPE_SIZE(int64 INT64)
MY_CHECK_TYPE_SIZE(uint64 UINT64)
MY_CHECK_TYPE_SIZE(time_t TIME_T)
SET (CMAKE_EXTRA_INCLUDE_FILES sys/types.h)
SET(CMAKE_EXTRA_INCLUDE_FILES)
IF(HAVE_SYS_SOCKET_H)
SET(CMAKE_EXTRA_INCLUDE_FILES sys/socket.h)
ENDIF(HAVE_SYS_SOCKET_H)
SET(CMAKE_EXTRA_INCLUDE_FILES)
IF(HAVE_IEEEFP_H)
SET(CMAKE_EXTRA_INCLUDE_FILES ieeefp.h)
MY_CHECK_TYPE_SIZE(fp_except FP_EXCEPT)
ENDIF()
#
# Code tests
#
# check whether time_t is unsigned
CHECK_C_SOURCE_COMPILES("
#include <time.h>
int main()
{
int array[(((time_t)-1) > 0) ? 1 : -1];
return 0;
}"
TIME_T_UNSIGNED)
CHECK_C_SOURCE_COMPILES("
#ifdef _WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#endif
int main()
{
select(0,0,0,0,0);
return 0;
}"
HAVE_SELECT)
#
# Check if timespec has ts_sec and ts_nsec fields
#
CHECK_C_SOURCE_COMPILES("
#include <pthread.h>
int main(int ac, char **av)
{
struct timespec abstime;
abstime.ts_sec = time(NULL)+1;
abstime.ts_nsec = 0;
}
" HAVE_TIMESPEC_TS_SEC)
#
# Check return type of qsort()
#
CHECK_C_SOURCE_COMPILES("
#include <stdlib.h>
#ifdef __cplusplus
extern \"C\"
#endif
void qsort(void *base, size_t nel, size_t width,
int (*compar) (const void *, const void *));
int main(int ac, char **av) {}
" QSORT_TYPE_IS_VOID)
IF(QSORT_TYPE_IS_VOID)
SET(RETQSORTTYPE "void")
ELSE(QSORT_TYPE_IS_VOID)
SET(RETQSORTTYPE "int")
ENDIF(QSORT_TYPE_IS_VOID)
IF(WIN32)
SET(SOCKET_SIZE_TYPE int)
ELSE()
CHECK_CXX_SOURCE_COMPILES("
#include <sys/socket.h>
int main(int argc, char **argv)
{
getsockname(0,0,(socklen_t *) 0);
return 0;
}"
HAVE_SOCKET_SIZE_T_AS_socklen_t)
IF(HAVE_SOCKET_SIZE_T_AS_socklen_t)
SET(SOCKET_SIZE_TYPE socklen_t)
ELSE()
CHECK_CXX_SOURCE_COMPILES("
#include <sys/socket.h>
int main(int argc, char **argv)
{
getsockname(0,0,(int *) 0);
return 0;
}"
HAVE_SOCKET_SIZE_T_AS_int)
IF(HAVE_SOCKET_SIZE_T_AS_int)
SET(SOCKET_SIZE_TYPE int)
ELSE()
CHECK_CXX_SOURCE_COMPILES("
#include <sys/socket.h>
int main(int argc, char **argv)
{
getsockname(0,0,(size_t *) 0);
return 0;
}"
HAVE_SOCKET_SIZE_T_AS_size_t)
IF(HAVE_SOCKET_SIZE_T_AS_size_t)
SET(SOCKET_SIZE_TYPE size_t)
ELSE()
SET(SOCKET_SIZE_TYPE int)
ENDIF()
ENDIF()
ENDIF()
ENDIF()
CHECK_CXX_SOURCE_COMPILES("
#include <pthread.h>
int main()
{
pthread_yield();
return 0;
}
" HAVE_PTHREAD_YIELD_ZERO_ARG)
IF(NOT STACK_DIRECTION)
IF(CMAKE_CROSSCOMPILING)
MESSAGE(FATAL_ERROR
"STACK_DIRECTION is not defined. Please specify -DSTACK_DIRECTION=1 "
"or -DSTACK_DIRECTION=-1 when calling cmake.")
ELSE()
TRY_RUN(STACKDIR_RUN_RESULT STACKDIR_COMPILE_RESULT
${CMAKE_BINARY_DIR}
${CMAKE_SOURCE_DIR}/cmake/stack_direction.c
)
# Test program returns 0 (down) or 1 (up).
# Convert to -1 or 1
IF(STACKDIR_RUN_RESULT EQUAL 0)
SET(STACK_DIRECTION -1 CACHE INTERNAL "Stack grows direction")
ELSE()
SET(STACK_DIRECTION 1 CACHE INTERNAL "Stack grows direction")
ENDIF()
MESSAGE(STATUS "Checking stack direction : ${STACK_DIRECTION}")
ENDIF()
ENDIF()
#
# Check return type of signal handlers
#
CHECK_C_SOURCE_COMPILES("
#include <signal.h>
#ifdef signal
# undef signal
#endif
#ifdef __cplusplus
extern \"C\" void (*signal (int, void (*)(int)))(int);
#else
void (*signal ()) ();
#endif
int main(int ac, char **av) {}
" SIGNAL_RETURN_TYPE_IS_VOID)
IF(SIGNAL_RETURN_TYPE_IS_VOID)
SET(RETSIGTYPE void)
SET(VOID_SIGHANDLER 1)
ELSE(SIGNAL_RETURN_TYPE_IS_VOID)
SET(RETSIGTYPE int)
ENDIF(SIGNAL_RETURN_TYPE_IS_VOID)
CHECK_INCLUDE_FILES("time.h;sys/time.h" TIME_WITH_SYS_TIME)
CHECK_SYMBOL_EXISTS(O_NONBLOCK "unistd.h;fcntl.h" HAVE_FCNTL_NONBLOCK)
IF(NOT HAVE_FCNTL_NONBLOCK)
SET(NO_FCNTL_NONBLOCK 1)
ENDIF()
#
# Test for how the C compiler does inline, if at all
#
# SunPro is weird, apparently it only supports inline at -xO3 or -xO4.
# And if CMAKE_C_FLAGS has -xO4 but CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE} has -xO2
# then CHECK_C_SOURCE_COMPILES will succeed but the built will fail.
# We must test all flags here.
# XXX actually, we can do this for all compilers, not only SunPro
IF (CMAKE_CXX_COMPILER_ID MATCHES "SunPro" AND
CMAKE_GENERATOR MATCHES "Makefiles")
STRING(TOUPPER "CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE}" flags)
SET(CMAKE_REQUIRED_FLAGS "${${flags}}")
ENDIF()
CHECK_C_SOURCE_COMPILES("
extern int bar(int x);
static inline int foo(){return bar(1);}
int main(int argc, char *argv[]){return 0;}"
C_HAS_inline)
IF(NOT C_HAS_inline)
CHECK_C_SOURCE_COMPILES("
extern int bar(int x);
static __inline int foo(){return bar(1);}
int main(int argc, char *argv[]){return 0;}"
C_HAS___inline)
IF(C_HAS___inline)
SET(C_INLINE __inline)
ElSE()
SET(C_INLINE)
MESSAGE(WARNING "C compiler does not support funcion inlining")
IF(NOT NOINLINE)
MESSAGE(FATAL_ERROR "Use -DNOINLINE=TRUE to allow compilation without inlining")
ENDIF()
ENDIF()
ENDIF()
IF(NOT CMAKE_CROSSCOMPILING AND NOT MSVC)
STRING(TOLOWER ${CMAKE_SYSTEM_PROCESSOR} processor)
IF(processor MATCHES "86" OR processor MATCHES "amd64" OR processor MATCHES "x64")
#Check for x86 PAUSE instruction
# We have to actually try running the test program, because of a bug
# in Solaris on x86_64, where it wrongly reports that PAUSE is not
# supported when trying to run an application. See
# http://bugs.opensolaris.org/bugdatabase/printableBug.do?bug_id=6478684
CHECK_C_SOURCE_RUNS("
int main()
{
__asm__ __volatile__ (\"pause\");
return 0;
}" HAVE_PAUSE_INSTRUCTION)
ENDIF()
IF (NOT HAVE_PAUSE_INSTRUCTION)
CHECK_C_SOURCE_COMPILES("
int main()
{
__asm__ __volatile__ (\"rep; nop\");
return 0;
}
" HAVE_FAKE_PAUSE_INSTRUCTION)
ENDIF()
ENDIF()
CHECK_SYMBOL_EXISTS(tcgetattr "termios.h" HAVE_TCGETATTR 1)
#
# Check type of signal routines (posix, 4.2bsd, 4.1bsd or v7)
#
CHECK_C_SOURCE_COMPILES("
#include <signal.h>
int main(int ac, char **av)
{
sigset_t ss;
struct sigaction sa;
sigemptyset(&ss); sigsuspend(&ss);
sigaction(SIGINT, &sa, (struct sigaction *) 0);
sigprocmask(SIG_BLOCK, &ss, (sigset_t *) 0);
}"
HAVE_POSIX_SIGNALS)
IF(NOT HAVE_POSIX_SIGNALS)
CHECK_C_SOURCE_COMPILES("
#include <signal.h>
int main(int ac, char **av)
{
int mask = sigmask(SIGINT);
sigsetmask(mask); sigblock(mask); sigpause(mask);
}"
HAVE_BSD_SIGNALS)
ENDIF(NOT HAVE_POSIX_SIGNALS)
# Assume regular sprintf
SET(SPRINTFS_RETURNS_INT 1)
IF(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
CHECK_CXX_SOURCE_COMPILES("
#include <cxxabi.h>
int main(int argc, char **argv)
{
char *foo= 0; int bar= 0;
foo= abi::__cxa_demangle(foo, foo, 0, &bar);
return 0;
}"
HAVE_ABI_CXA_DEMANGLE)
ENDIF()
CHECK_C_SOURCE_COMPILES("
int main(int argc, char **argv)
{
extern char *__bss_start;
return __bss_start ? 1 : 0;
}"
HAVE_BSS_START)
CHECK_C_SOURCE_COMPILES("
int main()
{
extern void __attribute__((weak)) foo(void);
return 0;
}"
HAVE_WEAK_SYMBOL
)
CHECK_C_SOURCE_COMPILES("
void foo(int *x) { }
int main() {
int a __attribute__((cleanup(foo)));
return 0;
}"
HAVE_ATTRIBUTE_CLEANUP
)
CHECK_CXX_SOURCE_COMPILES("
#include <new>
int main()
{
char *c = new char;
return 0;
}"
HAVE_CXX_NEW
)
CHECK_CXX_SOURCE_COMPILES("
#undef inline
#if !defined(SCO) && !defined(__osf__) && !defined(_REENTRANT)
#define _REENTRANT
#endif
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
int main()
{
struct hostent *foo =
gethostbyaddr_r((const char *) 0,
0, 0, (struct hostent *) 0, (char *) NULL, 0, (int *)0);
return 0;
}
"
HAVE_SOLARIS_STYLE_GETHOST)
SET(NO_ALARM 1 CACHE BOOL "No need to use alarm to implement timeout")
# As a consequence of ALARMs no longer being used, thread
# notification for KILL must close the socket to wake up
# other threads.
SET(SIGNAL_WITH_VIO_CLOSE 1)
MARK_AS_ADVANCED(NO_ALARM)
CHECK_CXX_SOURCE_COMPILES("
int main()
{
int foo= -10; int bar= 10;
long long int foo64= -10; long long int bar64= 10;
if (!__sync_fetch_and_add(&foo, bar) || foo)
return -1;
bar= __sync_lock_test_and_set(&foo, bar);
if (bar || foo != 10)
return -1;
bar= __sync_val_compare_and_swap(&bar, foo, 15);
if (bar)
return -1;
if (!__sync_fetch_and_add(&foo64, bar64) || foo64)
return -1;
bar64= __sync_lock_test_and_set(&foo64, bar64);
if (bar64 || foo64 != 10)
return -1;
bar64= __sync_val_compare_and_swap(&bar64, foo, 15);
if (bar64)
return -1;
return 0;
}"
HAVE_GCC_ATOMIC_BUILTINS)
CHECK_CXX_SOURCE_COMPILES("
int main()
{
long long int var= 1;
long long int *ptr= &var;
return (int)__atomic_load_n(ptr, __ATOMIC_SEQ_CST);
}"
HAVE_GCC_C11_ATOMICS)
IF(WITH_VALGRIND)
SET(HAVE_valgrind 1)
ENDIF()
CHECK_INCLUDE_FILES("valgrind/memcheck.h;valgrind/valgrind.h"
HAVE_VALGRIND_MEMCHECK_H)
#--------------------------------------------------------------------
# Check for IPv6 support
#--------------------------------------------------------------------
CHECK_INCLUDE_FILE(netinet/in6.h HAVE_NETINET_IN6_H)
IF(UNIX)
SET(CMAKE_EXTRA_INCLUDE_FILES sys/types.h netinet/in.h sys/socket.h)
IF(HAVE_NETINET_IN6_H)
SET(CMAKE_EXTRA_INCLUDE_FILES ${CMAKE_EXTRA_INCLUDE_FILES} netinet/in6.h)
ENDIF()
ELSEIF(WIN32)
SET(CMAKE_EXTRA_INCLUDE_FILES ${CMAKE_EXTRA_INCLUDE_FILES} winsock2.h ws2ipdef.h)
ENDIF()
MY_CHECK_STRUCT_SIZE("sockaddr_in6" SOCKADDR_IN6)
MY_CHECK_STRUCT_SIZE("in6_addr" IN6_ADDR)
IF(HAVE_STRUCT_SOCKADDR_IN6 OR HAVE_STRUCT_IN6_ADDR)
SET(HAVE_IPV6 TRUE CACHE INTERNAL "")
ENDIF()
# Check for sockaddr_storage.ss_family
# It is called differently under OS400 and older AIX
CHECK_STRUCT_HAS_MEMBER("struct sockaddr_storage"
ss_family "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SOCKADDR_STORAGE_SS_FAMILY)
IF(NOT HAVE_SOCKADDR_STORAGE_SS_FAMILY)
CHECK_STRUCT_HAS_MEMBER("struct sockaddr_storage"
__ss_family "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SOCKADDR_STORAGE___SS_FAMILY)
IF(HAVE_SOCKADDR_STORAGE___SS_FAMILY)
SET(ss_family __ss_family)
ENDIF()
ENDIF()
#
# Check if struct sockaddr_in::sin_len is available.
#
CHECK_STRUCT_HAS_MEMBER("struct sockaddr_in" sin_len
"${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SOCKADDR_IN_SIN_LEN)
#
# Check if struct sockaddr_in6::sin6_len is available.
#
CHECK_STRUCT_HAS_MEMBER("struct sockaddr_in6" sin6_len
"${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SOCKADDR_IN6_SIN6_LEN)
SET(CMAKE_EXTRA_INCLUDE_FILES)
CHECK_STRUCT_HAS_MEMBER("struct dirent" d_ino "dirent.h" STRUCT_DIRENT_HAS_D_INO)
CHECK_STRUCT_HAS_MEMBER("struct dirent" d_namlen "dirent.h" STRUCT_DIRENT_HAS_D_NAMLEN)
SET(SPRINTF_RETURNS_INT 1)
CHECK_INCLUDE_FILE(ucontext.h HAVE_FILE_UCONTEXT_H)
IF(NOT HAVE_FILE_UCONTEXT_H)
CHECK_INCLUDE_FILE(sys/ucontext.h HAVE_FILE_UCONTEXT_H)
ENDIF()
IF(HAVE_FILE_UCONTEXT_H)
CHECK_FUNCTION_EXISTS(makecontext HAVE_UCONTEXT_H)
ENDIF()
CHECK_STRUCT_HAS_MEMBER("struct timespec" tv_sec "time.h" STRUCT_TIMESPEC_HAS_TV_SEC)
CHECK_STRUCT_HAS_MEMBER("struct timespec" tv_nsec "time.h" STRUCT_TIMESPEC_HAS_TV_NSEC)
IF(NOT MSVC)
CHECK_C_SOURCE_COMPILES(
"
#define _GNU_SOURCE
#include <fcntl.h>
#include <linux/falloc.h>
int main()
{
/* Ignore the return value for now. Check if the flags exist.
The return value is checked at runtime. */
fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
return(0);
}"
HAVE_FALLOC_PUNCH_HOLE_AND_KEEP_SIZE
)
ENDIF()
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