mirror of
https://github.com/libevent/libevent.git
synced 2025-01-09 00:56:20 +08:00
cmake: replace CheckFunctionExists with CheckSymbolExists
Checking functions with `CheckFunctionExists` may get wrong results, we should replace it with `CheckSymbolExists`, which is recommended by the cmake official documentation. Before using `CheckSymbolExists`, we use `CheckIncludeFiles` to check header files and save the available header files in a variable that guarantees `CheckSymbolExists` and `CheckTypeSize` to work correctly. This approach is modeled after the cmake scripts of `curl`. The following functions or files were not found before modification, they can now be found: - msys2 + mingw-8.1.0 on Windows10 or mingw-7.3.0 on Ubuntu-18.04 timerclear timercmp timerisset - windows10 getaddrinfo getnameinfo getprotobynumber getservbyname putenv strtoll timerclear timercmp timerisset - ubuntu-18.04 sys/sysctl.h timeradd timerclear timercmp timerisset - MacOS 10.13 sys/random.h timeradd timerclear timercmp timerisset
This commit is contained in:
parent
1675a55620
commit
41d1d75a84
298
CMakeLists.txt
298
CMakeLists.txt
@ -52,12 +52,9 @@ string(REGEX MATCH "SunOS" SOLARIS "${CMAKE_SYSTEM_NAME}")
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include(CheckTypeSize)
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include(CheckFileOffsetBits)
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include(CheckFunctionExists)
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include(CheckIncludeFile)
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include(CheckIncludeFiles)
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include(Macros)
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include(CheckVariableExists)
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include(CheckSymbolExists)
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include(CheckSymbolsExist)
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include(CheckStructHasMember)
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include(CheckCSourceCompiles)
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include(CheckPrototypeDefinition)
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@ -335,10 +332,13 @@ if (APPLE)
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)
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endif()
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if (MINGW OR CYGWIN)
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set(WIN32 TRUE)
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endif()
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# Winsock.
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if(WIN32)
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set(CMAKE_EXTRA_INCLUDE_FILES winsock2.h ws2tcpip.h)
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set(CMAKE_REQUIRED_LIBRARIES ws2_32.lib shell32.lib advapi32.lib)
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set(CMAKE_REQUIRED_LIBRARIES ws2_32 shell32 advapi32)
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set(CMAKE_REQUIRED_DEFINITIONS -FIwinsock2.h -FIws2tcpip.h -D_WIN32_WINNT=0x0600)
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endif()
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if (SOLARIS)
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@ -361,161 +361,161 @@ endif()
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if (_GNU_SOURCE)
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add_definitions(-D_GNU_SOURCE=1)
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set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
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endif()
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CHECK_INCLUDE_FILE(sys/types.h EVENT__HAVE_SYS_TYPES_H)
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if(EVENT__HAVE_SYS_TYPES_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES sys/types.h)
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endif()
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CHECK_INCLUDE_FILE(sys/socket.h EVENT__HAVE_SYS_SOCKET_H)
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if(EVENT__HAVE_SYS_SOCKET_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES sys/socket.h)
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endif()
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CHECK_INCLUDE_FILE(sys/random.h EVENT__HAVE_SYS_RANDOM_H)
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if(EVENT__HAVE_SYS_RANDOM_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES sys/random.h)
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endif()
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CHECK_INCLUDE_FILE(netinet/in.h EVENT__HAVE_NETINET_IN_H)
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if(EVENT__HAVE_NETINET_IN_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES netinet/in.h)
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endif()
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CHECK_INCLUDE_FILE(sys/un.h EVENT__HAVE_SYS_UN_H)
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if(EVENT__HAVE_SYS_UN_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES sys/un.h)
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endif()
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if(WIN32)
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CHECK_INCLUDE_FILE(afunix.h EVENT__HAVE_AFUNIX_H)
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if(EVENT__HAVE_AFUNIX_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES afunix.h)
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endif()
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endif()
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CHECK_TYPE_SIZE("struct sockaddr_un" EVENT__HAVE_STRUCT_SOCKADDR_UN)
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CHECK_INCLUDE_FILE(netinet/in6.h EVENT__HAVE_NETINET_IN6_H)
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if(EVENT__HAVE_NETINET_IN6_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES netinet/in6.h)
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endif()
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CHECK_INCLUDE_FILE(unistd.h EVENT__HAVE_UNISTD_H)
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CHECK_INCLUDE_FILE(netdb.h EVENT__HAVE_NETDB_H)
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CHECK_INCLUDE_FILE(dlfcn.h EVENT__HAVE_DLFCN_H)
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CHECK_INCLUDE_FILE(arpa/inet.h EVENT__HAVE_ARPA_INET_H)
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CHECK_INCLUDE_FILE(fcntl.h EVENT__HAVE_FCNTL_H)
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if(EVENT__HAVE_FCNTL_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES fcntl.h)
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endif()
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CHECK_INCLUDE_FILE(inttypes.h EVENT__HAVE_INTTYPES_H)
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CHECK_INCLUDE_FILE(memory.h EVENT__HAVE_MEMORY_H)
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CHECK_INCLUDE_FILE(poll.h EVENT__HAVE_POLL_H)
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CHECK_INCLUDE_FILE(port.h EVENT__HAVE_PORT_H)
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if(EVENT__HAVE_PORT_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES port.h)
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endif()
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CHECK_INCLUDE_FILE(signal.h EVENT__HAVE_SIGNAL_H)
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CHECK_INCLUDE_FILE(stdarg.h EVENT__HAVE_STDARG_H)
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CHECK_INCLUDE_FILE(stddef.h EVENT__HAVE_STDDEF_H)
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CHECK_INCLUDE_FILE(stdint.h EVENT__HAVE_STDINT_H)
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CHECK_INCLUDE_FILE(stdlib.h EVENT__HAVE_STDLIB_H)
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CHECK_INCLUDE_FILE(strings.h EVENT__HAVE_STRINGS_H)
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CHECK_INCLUDE_FILE(string.h EVENT__HAVE_STRING_H)
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CHECK_INCLUDE_FILE(sys/devpoll.h EVENT__HAVE_DEVPOLL)
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CHECK_INCLUDE_FILE(sys/epoll.h EVENT__HAVE_SYS_EPOLL_H)
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CHECK_INCLUDE_FILE(sys/eventfd.h EVENT__HAVE_SYS_EVENTFD_H)
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CHECK_INCLUDE_FILE(sys/event.h EVENT__HAVE_SYS_EVENT_H)
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CHECK_INCLUDE_FILE(sys/ioctl.h EVENT__HAVE_SYS_IOCTL_H)
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CHECK_INCLUDE_FILE(sys/mman.h EVENT__HAVE_SYS_MMAN_H)
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CHECK_INCLUDE_FILE(sys/param.h EVENT__HAVE_SYS_PARAM_H)
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CHECK_INCLUDE_FILE(sys/queue.h EVENT__HAVE_SYS_QUEUE_H)
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CHECK_INCLUDE_FILE(sys/select.h EVENT__HAVE_SYS_SELECT_H)
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CHECK_INCLUDE_FILE(sys/sendfile.h EVENT__HAVE_SYS_SENDFILE_H)
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CHECK_INCLUDE_FILE(sys/stat.h EVENT__HAVE_SYS_STAT_H)
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CHECK_INCLUDE_FILE(sys/time.h EVENT__HAVE_SYS_TIME_H)
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if(EVENT__HAVE_SYS_TIME_H)
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list(APPEND CMAKE_EXTRA_INCLUDE_FILES sys/time.h)
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endif()
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CHECK_INCLUDE_FILE(sys/uio.h EVENT__HAVE_SYS_UIO_H)
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CHECK_INCLUDE_FILES("sys/types.h;ifaddrs.h" EVENT__HAVE_IFADDRS_H)
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CHECK_INCLUDE_FILE(mach/mach_time.h EVENT__HAVE_MACH_MACH_TIME_H)
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CHECK_INCLUDE_FILE(mach/mach.h EVENT__HAVE_MACH_MACH_H)
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CHECK_INCLUDE_FILE(netinet/tcp.h EVENT__HAVE_NETINET_TCP_H)
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CHECK_INCLUDE_FILE(sys/wait.h EVENT__HAVE_SYS_WAIT_H)
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CHECK_INCLUDE_FILE(sys/resource.h EVENT__HAVE_SYS_RESOURCE_H)
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if (NOT "${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Linux")
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CHECK_INCLUDE_FILE(sys/sysctl.h EVENT__HAVE_SYS_SYSCTL_H)
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endif()
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CHECK_INCLUDE_FILE(sys/timerfd.h EVENT__HAVE_SYS_TIMERFD_H)
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CHECK_INCLUDE_FILE(errno.h EVENT__HAVE_ERRNO_H)
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# Check if header files exist
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list(APPEND FILES_TO_CHECK
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fcntl.h
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inttypes.h
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memory.h
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signal.h
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stdarg.h
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stddef.h
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stdint.h
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stdlib.h
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string.h
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errno.h
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unistd.h
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time.h
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sys/types.h
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sys/stat.h
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sys/time.h
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sys/param.h
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)
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if (WIN32)
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list(APPEND CHECK_SYMBOL_HEADERS winsock2.h ws2tcpip.h)
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list(APPEND FILES_TO_CHECK
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io.h
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winsock2.h
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ws2tcpip.h
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afunix.h
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)
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else()
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list(APPEND FILES_TO_CHECK
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netdb.h
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dlfcn.h
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arpa/inet.h
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poll.h
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port.h
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sys/socket.h
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sys/random.h
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sys/un.h
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sys/devpoll.h
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sys/epoll.h
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sys/eventfd.h
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sys/event.h
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sys/ioctl.h
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sys/mman.h
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sys/queue.h
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sys/select.h
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sys/sendfile.h
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sys/uio.h
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sys/wait.h
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sys/resource.h
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sys/timerfd.h
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netinet/in.h
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netinet/in6.h
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netinet/tcp.h
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ifaddrs.h
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)
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endif()
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if (NOT "${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Linux")
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list(APPEND FILES_TO_CHECK sys/sysctl.h)
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endif()
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if (APPLE)
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list(APPEND FILES_TO_CHECK
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mach/mach_time.h
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mach/mach.h
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)
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endif()
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foreach(FILE ${FILES_TO_CHECK})
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CHECK_INCLUDE_FILE_CONCAT(${FILE} "EVENT")
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endforeach()
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unset(FILES_TO_CHECK)
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# Check if functions exist
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list(APPEND SYMBOLS_TO_CHECK
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getaddrinfo
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getnameinfo
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getprotobynumber
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getservbyname
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gethostbyname
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inet_ntop
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inet_pton
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gettimeofday
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signal
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strtoll
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splice
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strlcpy
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strsep
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strtok_r
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vasprintf
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timerclear
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timercmp
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timerisset
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timeradd
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nanosleep
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putenv
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umask
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)
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CHECK_SYMBOLS_EXIST("${SYMBOLS_TO_CHECK}" "${CHECK_SYMBOL_HEADERS}" "EVENT")
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unset(CHECK_SYMBOL_HEADERS)
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unset(SYMBOLS_TO_CHECK)
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CHECK_FUNCTION_EXISTS(epoll_create EVENT__HAVE_EPOLL)
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CHECK_FUNCTION_EXISTS(epoll_ctl EVENT__HAVE_EPOLL_CTL)
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CHECK_FUNCTION_EXISTS(eventfd EVENT__HAVE_EVENTFD)
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if(NOT EVENT__DISABLE_CLOCK_GETTIME)
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CHECK_FUNCTION_EXISTS(clock_gettime EVENT__HAVE_CLOCK_GETTIME)
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if (NOT EVENT__DISABLE_CLOCK_GETTIME)
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list(APPEND SYMBOLS_TO_CHECK clock_gettime)
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endif()
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CHECK_FUNCTION_EXISTS(fcntl EVENT__HAVE_FCNTL)
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CHECK_FUNCTION_EXISTS(gettimeofday EVENT__HAVE_GETTIMEOFDAY)
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CHECK_FUNCTION_EXISTS(kqueue EVENT__HAVE_KQUEUE)
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CHECK_FUNCTION_EXISTS(mmap EVENT__HAVE_MMAP)
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CHECK_FUNCTION_EXISTS(pipe EVENT__HAVE_PIPE)
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CHECK_FUNCTION_EXISTS(pipe2 EVENT__HAVE_PIPE2)
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CHECK_FUNCTION_EXISTS(poll EVENT__HAVE_POLL)
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CHECK_FUNCTION_EXISTS(port_create EVENT__HAVE_PORT_CREATE)
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CHECK_FUNCTION_EXISTS(sendfile EVENT__HAVE_SENDFILE)
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CHECK_FUNCTION_EXISTS(sigaction EVENT__HAVE_SIGACTION)
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CHECK_FUNCTION_EXISTS(signal EVENT__HAVE_SIGNAL)
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CHECK_FUNCTION_EXISTS(strsignal EVENT__HAVE_STRSIGNAL)
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CHECK_FUNCTION_EXISTS(splice EVENT__HAVE_SPLICE)
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CHECK_FUNCTION_EXISTS(strlcpy EVENT__HAVE_STRLCPY)
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CHECK_FUNCTION_EXISTS(strsep EVENT__HAVE_STRSEP)
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CHECK_FUNCTION_EXISTS(strtok_r EVENT__HAVE_STRTOK_R)
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CHECK_FUNCTION_EXISTS(vasprintf EVENT__HAVE_VASPRINTF)
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CHECK_FUNCTION_EXISTS(sysctl EVENT__HAVE_SYSCTL)
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CHECK_FUNCTION_EXISTS(accept4 EVENT__HAVE_ACCEPT4)
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CHECK_FUNCTION_EXISTS(arc4random EVENT__HAVE_ARC4RANDOM)
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CHECK_FUNCTION_EXISTS(arc4random_buf EVENT__HAVE_ARC4RANDOM_BUF)
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CHECK_FUNCTION_EXISTS(arc4random_addrandom EVENT__HAVE_ARC4RANDOM_ADDRANDOM)
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CHECK_FUNCTION_EXISTS(epoll_create1 EVENT__HAVE_EPOLL_CREATE1)
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CHECK_FUNCTION_EXISTS(getegid EVENT__HAVE_GETEGID)
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CHECK_FUNCTION_EXISTS(geteuid EVENT__HAVE_GETEUID)
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CHECK_FUNCTION_EXISTS(getifaddrs EVENT__HAVE_GETIFADDRS)
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CHECK_FUNCTION_EXISTS(issetugid EVENT__HAVE_ISSETUGID)
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CHECK_FUNCTION_EXISTS(mach_absolute_time EVENT__HAVE_MACH_ABSOLUTE_TIME)
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CHECK_FUNCTION_EXISTS(nanosleep EVENT__HAVE_NANOSLEEP)
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CHECK_FUNCTION_EXISTS(usleep EVENT__HAVE_USLEEP)
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CHECK_FUNCTION_EXISTS(timeradd EVENT__HAVE_TIMERADD)
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CHECK_FUNCTION_EXISTS(timerfd_create EVENT__HAVE_TIMERFD_CREATE)
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CHECK_FUNCTION_EXISTS(setenv EVENT__HAVE_SETENV)
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CHECK_FUNCTION_EXISTS(setrlimit EVENT__HAVE_SETRLIMIT)
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CHECK_FUNCTION_EXISTS(umask EVENT__HAVE_UMASK)
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CHECK_FUNCTION_EXISTS(unsetenv EVENT__HAVE_UNSETENV)
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if (WIN32)
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list(APPEND SYMBOLS_TO_CHECK
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_gmtime64_s
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_gmtime64
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)
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else()
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list(APPEND SYMBOLS_TO_CHECK
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getifaddrs
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select
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epoll_create
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epoll_create1
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epoll_ctl
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eventfd
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poll
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port_create
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kqueue
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fcntl
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mmap
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pipe
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pipe2
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sendfile
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sigaction
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strsignal
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sysctl
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accept4
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arc4random
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arc4random_buf
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arc4random_addrandom
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getrandom
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getegid
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geteuid
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issetugid
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usleep
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timerfd_create
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setenv
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unsetenv
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setrlimit
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gethostbyname_r
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)
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if (APPLE)
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list(APPEND SYMBOLS_TO_CHECK mach_absolute_time)
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endif()
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endif()
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# Add stdio.h for vasprintf
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set(EVENT_INCLUDES ${EVENT_INCLUDES} stdio.h)
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CHECK_SYMBOLS_EXIST("${SYMBOLS_TO_CHECK}" "${EVENT_INCLUDES}" "EVENT")
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unset(SYMBOLS_TO_CHECK)
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set(EVENT__HAVE_EPOLL ${EVENT__HAVE_EPOLL_CREATE})
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# Get the gethostbyname_r prototype.
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CHECK_FUNCTION_EXISTS(gethostbyname_r EVENT__HAVE_GETHOSTBYNAME_R)
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if(EVENT__HAVE_GETHOSTBYNAME_R)
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CHECK_PROTOTYPE_DEFINITION(gethostbyname_r
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"int gethostbyname_r(const char *name, struct hostent *hp, struct hostent_data *hdata)"
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@ -540,17 +540,10 @@ if(HAVE_PORT_H AND HAVE_PORT_CREATE)
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set(EVENT__HAVE_EVENT_PORTS 1)
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endif()
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if(NOT WIN32)
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CHECK_FUNCTION_EXISTS(select EVENT__HAVE_SELECT)
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endif()
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if(WIN32)
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CHECK_FUNCTION_EXISTS(_gmtime64_s EVENT__HAVE__GMTIME64_S)
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if (NOT EVENT__HAVE__GMTIME64_S)
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CHECK_FUNCTION_EXISTS(_gmtime64 EVENT__HAVE__GMTIME64)
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endif()
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endif()
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# Only `CHECK_TYPE_SIZE()' will use `CMAKE_EXTRA_INCLUDE_FILES'
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set(CMAKE_EXTRA_INCLUDE_FILES ${EVENT_INCLUDES})
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CHECK_TYPE_SIZE("struct sockaddr_un" EVENT__HAVE_STRUCT_SOCKADDR_UN)
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CHECK_TYPE_SIZE("uint8_t" EVENT__HAVE_UINT8_T)
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CHECK_TYPE_SIZE("uint16_t" EVENT__HAVE_UINT16_T)
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CHECK_TYPE_SIZE("uint32_t" EVENT__HAVE_UINT32_T)
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@ -590,7 +583,6 @@ CHECK_SYMBOL_EXISTS(TAILQ_FOREACH sys/queue.h EVENT__HAVE_TAILQFOREACH)
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CHECK_CONST_EXISTS(CTL_KERN sys/sysctl.h EVENT__HAVE_DECL_CTL_KERN)
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CHECK_CONST_EXISTS(KERN_ARND sys/sysctl.h EVENT__HAVE_DECL_KERN_ARND)
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CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)
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CHECK_FUNCTION_EXISTS(getrandom EVENT__HAVE_GETRANDOM)
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CHECK_TYPE_SIZE(fd_mask EVENT__HAVE_FD_MASK)
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@ -1,20 +0,0 @@
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# Check if each symbol in the symbol list exists,
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# and define PREFIX__HAVE_SYMNAME to 1 if yes.
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#
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include(CheckSymbolExists)
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# SYMLIST: list of symbols to check
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# HEADERS: header files to be included in check code
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# PREFIX: the prefix of definition
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macro(CHECK_SYMBOLS_EXIST SYMLIST HEADERS PREFIX)
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foreach(SYMNAME ${SYMLIST})
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string(TOUPPER "${SYMNAME}" SYMNAME_UPPER)
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if("${PREFIX}" STREQUAL "")
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set(HAVE_SYM_DEF "HAVE_${SYMNAME_UPPER}")
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else()
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set(HAVE_SYM_DEF "${PREFIX}__HAVE_${SYMNAME_UPPER}")
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endif()
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CHECK_SYMBOL_EXISTS(${SYMNAME} "${HEADERS}" ${HAVE_SYM_DEF})
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endforeach()
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endmacro()
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36
cmake/Macros.cmake
Normal file
36
cmake/Macros.cmake
Normal file
@ -0,0 +1,36 @@
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include(CheckSymbolExists)
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include(CheckIncludeFiles)
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# Check if each symbol in the symbol list exists,
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# and define PREFIX__HAVE_SYMNAME to 1 if yes.
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#
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# SYMLIST: list of symbols to check
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# HEADERS: header files to be included in check code
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# PREFIX: the prefix of definition
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macro(CHECK_SYMBOLS_EXIST SYMLIST HEADERS PREFIX)
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foreach(SYMNAME ${SYMLIST})
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string(TOUPPER "${SYMNAME}" SYMNAME_UPPER)
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if ("${PREFIX}" STREQUAL "")
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set(HAVE_SYM_DEF "HAVE_${SYMNAME_UPPER}")
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else()
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set(HAVE_SYM_DEF "${PREFIX}__HAVE_${SYMNAME_UPPER}")
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endif()
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CHECK_SYMBOL_EXISTS(${SYMNAME} "${HEADERS}" ${HAVE_SYM_DEF})
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endforeach()
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endmacro()
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# Check if file exists, define PREFIX__HAVE_FILE to 1 if yes,
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# and collect file to EVENT_INCLUDES
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macro(CHECK_INCLUDE_FILE_CONCAT FILE PREFIX)
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string(REGEX REPLACE "[./]" "_" FILE_UL ${FILE})
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string(TOUPPER "${FILE_UL}" FILE_UL_UPPER)
|
||||
if ("${PREFIX}" STREQUAL "")
|
||||
set(HAVE_FILE_DEF "HAVE_${FILE_UL_UPPER}")
|
||||
else()
|
||||
set(HAVE_FILE_DEF "${PREFIX}__HAVE_${FILE_UL_UPPER}")
|
||||
endif()
|
||||
CHECK_INCLUDE_FILES("${EVENT_INCLUDES};${FILE}" ${HAVE_FILE_DEF})
|
||||
if(${HAVE_FILE_DEF})
|
||||
set(EVENT_INCLUDES ${EVENT_INCLUDES} ${FILE})
|
||||
endif()
|
||||
endmacro()
|
@ -277,9 +277,6 @@
|
||||
/* Define to 1 if you have the <stdlib.h> header file. */
|
||||
#cmakedefine EVENT__HAVE_STDLIB_H 1
|
||||
|
||||
/* Define to 1 if you have the <strings.h> header file. */
|
||||
#cmakedefine EVENT__HAVE_STRINGS_H 1
|
||||
|
||||
/* Define to 1 if you have the <string.h> header file. */
|
||||
#cmakedefine EVENT__HAVE_STRING_H 1
|
||||
|
||||
|
Loading…
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Reference in New Issue
Block a user