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CMakeLists.txt
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CMakeLists.txt
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CMAKE_MINIMUM_REQUIRED (VERSION 3.1.0)
INCLUDE (CheckIncludeFiles)
INCLUDE (CheckTypeSize)
INCLUDE (CheckFunctionExists)
INCLUDE (CheckSymbolExists)
INCLUDE (CheckCSourceCompiles)
INCLUDE (CheckStructHasMember)
INCLUDE (CheckLibraryExists)
PROJECT (c-ares LANGUAGES C VERSION "1.17.0" )
# Set this version before release
SET (CARES_VERSION "${PROJECT_VERSION}")
INCLUDE (GNUInstallDirs) # include this *AFTER* PROJECT(), otherwise paths are wrong.
# This is for libtool compatibility, and specified in a form that is easily
# translatable from libtool (even if the actual form doesn't make sense).
# For instance, in an autotools project, in Makefile.am there is a line that
# contains something like:
# -version-info 4:0:2
# This breaks down into sections of current:revision:age
# This then generates a version of "(current-age).age.revision" with an
# interface version of "(current-age)"
# For example, a version of 4:0:2 would generate output such as:
# libname.so -> libname.so.2
# libname.so.2 -> libname.so.2.2.0
SET (CARES_LIB_VERSIONINFO "6:2:4")
OPTION (CARES_STATIC "Build as a static library" OFF)
OPTION (CARES_SHARED "Build as a shared library" ON)
OPTION (CARES_INSTALL "Create installation targets (chain builders may want to disable this)" ON)
OPTION (CARES_STATIC_PIC "Build the static library as PIC (position independent)" OFF)
OPTION (CARES_BUILD_TESTS "Build and run tests" OFF)
OPTION (CARES_BUILD_CONTAINER_TESTS "Build and run container tests (implies CARES_BUILD_TESTS, Linux only)" OFF)
OPTION (CARES_BUILD_TOOLS "Build tools" ON)
# Tests require static to be enabled on Windows to be able to access otherwise hidden symbols
IF (CARES_BUILD_TESTS AND (NOT CARES_STATIC) AND WIN32)
SET (CARES_STATIC ON)
SET (CARES_STATIC_PIC ON)
MESSAGE (WARNING "Static building was requested be disabled, but reenabled to support tests")
ENDIF ()
# allow linking against the static runtime library in msvc
IF (MSVC)
OPTION (CARES_MSVC_STATIC_RUNTIME "Link against the static runtime library" OFF)
IF (CARES_MSVC_STATIC_RUNTIME)
# CMAKE_CONFIGURATION_TYPES is empty on non-IDE generators (Ninja, NMake)
# and that's why we also use CMAKE_BUILD_TYPE to cover for those generators.
# For IDE generators, CMAKE_BUILD_TYPE is usually empty
FOREACH (config_type ${CMAKE_CONFIGURATION_TYPES} ${CMAKE_BUILD_TYPE})
STRING (TOUPPER ${config_type} upper_config_type)
SET (flag_var "CMAKE_C_FLAGS_${upper_config_type}")
IF (${flag_var} MATCHES "/MD")
STRING (REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
ENDIF ()
ENDFOREACH ()
# clean up
SET (upper_config_type)
SET (config_type)
SET (flag_var)
ENDIF ()
ENDIF ()
# Keep build organized.
SET (CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}")
SET (CMAKE_LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}")
SET (CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}")
SET (PACKAGE_DIRECTORY ${PROJECT_BINARY_DIR}/package)
# Destinations for installing different kinds of targets (pass to install command).
SET (TARGETS_INST_DEST
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
# Function in Library
# CHECK_LIBRARY_EXISTS can't be used as it will return true if the function
# is found in a different dependent library.
MACRO (CARES_FUNCTION_IN_LIBRARY func lib var)
CHECK_FUNCTION_EXISTS ("${func}" "_CARES_FUNC_IN_LIB_GLOBAL_${func}")
IF ("${_CARES_FUNC_IN_LIB_GLOBAL_${func}}")
SET (${var} FALSE)
ELSE ()
CHECK_LIBRARY_EXISTS ("${lib}" "${func}" "" ${var})
ENDIF ()
ENDMACRO ()
# Look for dependent/required libraries
CARES_FUNCTION_IN_LIBRARY (res_servicename resolv HAVE_RES_SERVICENAME_IN_LIBRESOLV)
IF (HAVE_RES_SERVICENAME_IN_LIBRESOLV)
SET (HAVE_LIBRESOLV 1)
ENDIF ()
IF (APPLE)
CHECK_C_SOURCE_COMPILES ("
#include <stdio.h>
#include <TargetConditionals.h>
int main() {
#if TARGET_OS_IPHONE == 0
#error Not an iPhone target
#endif
return 0;
}
"
IOS)
CHECK_C_SOURCE_COMPILES ("
#include <stdio.h>
#include <TargetConditionals.h>
int main() {
#if TARGET_OS_IPHONE == 0 || __IPHONE_OS_VERSION_MIN_REQUIRED < 100000
# error Not iOS v10
#endif
return 0;
}
"
IOS_V10)
CHECK_C_SOURCE_COMPILES ("
#include <stdio.h>
#include <AvailabilityMacros.h>
#ifndef MAC_OS_X_VERSION_10_12
# define MAC_OS_X_VERSION_10_12 101200
#endif
int main() {
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_12
# error Not MacOSX 10.12 or higher
#endif
return 0;
}
"
MACOS_V1012)
ENDIF ()
IF ((IOS OR APPLE) AND HAVE_LIBRESOLV)
SET (CARES_USE_LIBRESOLV 1)
ENDIF()
CARES_FUNCTION_IN_LIBRARY (gethostbyname nsl HAVE_LIBNSL)
CARES_FUNCTION_IN_LIBRARY (gethostbyname socket HAVE_GHBN_LIBSOCKET)
CARES_FUNCTION_IN_LIBRARY (socket socket HAVE_SOCKET_LIBSOCKET)
IF (HAVE_GHBN_LIBSOCKET OR HAVE_SOCKET_LIBSOCKET)
SET(HAVE_LIBSOCKET TRUE)
ENDIF ()
CARES_FUNCTION_IN_LIBRARY (clock_gettime rt HAVE_LIBRT)
# Look for necessary includes
CHECK_INCLUDE_FILES (sys/types.h HAVE_SYS_TYPES_H)
CHECK_INCLUDE_FILES (sys/socket.h HAVE_SYS_SOCKET_H)
CHECK_INCLUDE_FILES (arpa/inet.h HAVE_ARPA_INET_H)
CHECK_INCLUDE_FILES (arpa/nameser_compat.h HAVE_ARPA_NAMESER_COMPAT_H)
CHECK_INCLUDE_FILES (arpa/nameser.h HAVE_ARPA_NAMESER_H)
CHECK_INCLUDE_FILES (assert.h HAVE_ASSERT_H)
CHECK_INCLUDE_FILES (errno.h HAVE_ERRNO_H)
CHECK_INCLUDE_FILES (fcntl.h HAVE_FCNTL_H)
CHECK_INCLUDE_FILES (inttypes.h HAVE_INTTYPES_H)
CHECK_INCLUDE_FILES (limits.h HAVE_LIMITS_H)
CHECK_INCLUDE_FILES (malloc.h HAVE_MALLOC_H)
CHECK_INCLUDE_FILES (memory.h HAVE_MEMORY_H)
CHECK_INCLUDE_FILES (netdb.h HAVE_NETDB_H)
CHECK_INCLUDE_FILES (netinet/in.h HAVE_NETINET_IN_H)
CHECK_INCLUDE_FILES (netinet/tcp.h HAVE_NETINET_TCP_H)
CHECK_INCLUDE_FILES (net/if.h HAVE_NET_IF_H)
CHECK_INCLUDE_FILES (signal.h HAVE_SIGNAL_H)
CHECK_INCLUDE_FILES (socket.h HAVE_SOCKET_H)
CHECK_INCLUDE_FILES (stdbool.h HAVE_STDBOOL_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 (stropts.h HAVE_STROPTS_H)
CHECK_INCLUDE_FILES (sys/ioctl.h HAVE_SYS_IOCTL_H)
CHECK_INCLUDE_FILES (sys/param.h HAVE_SYS_PARAM_H)
CHECK_INCLUDE_FILES (sys/select.h HAVE_SYS_SELECT_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/time.h HAVE_SYS_TIME_H)
CHECK_INCLUDE_FILES (sys/types.h HAVE_SYS_TYPES_H)
CHECK_INCLUDE_FILES (sys/uio.h HAVE_SYS_UIO_H)
CHECK_INCLUDE_FILES (time.h HAVE_TIME_H)
CHECK_INCLUDE_FILES (dlfcn.h HAVE_DLFCN_H)
CHECK_INCLUDE_FILES (unistd.h HAVE_UNISTD_H)
# Include order matters for these windows files.
CHECK_INCLUDE_FILES ("winsock2.h;windows.h" HAVE_WINSOCK2_H)
CHECK_INCLUDE_FILES ("winsock2.h;ws2tcpip.h;windows.h" HAVE_WS2TCPIP_H)
CHECK_INCLUDE_FILES ("winsock.h;windows.h" HAVE_WINSOCK_H)
CHECK_INCLUDE_FILES (windows.h HAVE_WINDOWS_H)
# Set system-specific compiler flags
IF (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
LIST (APPEND SYSFLAGS -D_DARWIN_C_SOURCE)
ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "Linux")
LIST (APPEND SYSFLAGS -D_GNU_SOURCE -D_POSIX_C_SOURCE=199309L -D_XOPEN_SOURCE=600)
ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "SunOS")
LIST (APPEND SYSFLAGS -D__EXTENSIONS__ -D_REENTRANT -D_XOPEN_SOURCE=600)
ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "AIX")
LIST (APPEND SYSFLAGS -D_ALL_SOURCE -D_XOPEN_SOURCE=600 -D_USE_IRS)
ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
# Don't define _XOPEN_SOURCE on FreeBSD, it actually reduces visibility instead of increasing it
ELSEIF (WIN32)
LIST (APPEND SYSFLAGS -DWIN32_LEAN_AND_MEAN -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE -D_WIN32_WINNT=0x0600)
ENDIF ()
ADD_DEFINITIONS(${SYSFLAGS})
# Tell C-Ares about libraries to depend on
IF (HAVE_LIBRESOLV)
LIST (APPEND CARES_DEPENDENT_LIBS resolv)
ENDIF ()
IF (HAVE_LIBNSL)
LIST (APPEND CARES_DEPENDENT_LIBS nsl)
ENDIF ()
IF (HAVE_LIBSOCKET)
LIST (APPEND CARES_DEPENDENT_LIBS socket)
ENDIF ()
IF (HAVE_LIBRT)
LIST (APPEND CARES_DEPENDENT_LIBS rt)
ENDIF ()
IF (WIN32)
LIST (APPEND CARES_DEPENDENT_LIBS ws2_32 Advapi32)
ENDIF ()
# When checking for symbols, we need to make sure we set the proper
# headers, libraries, and definitions for the detection to work properly
# CMAKE_REQUIRED_DEFINITIONS, CMAKE_REQUIRED_LIBRARIES, and
# CMAKE_EXTRA_INCLUDE_FILES. When we're done with the detection, we'll
# unset them.
SET (CMAKE_REQUIRED_DEFINITIONS ${SYSFLAGS})
LIST (APPEND CMAKE_REQUIRED_LIBRARIES ${CARES_DEPENDENT_LIBS})
MACRO (CARES_EXTRAINCLUDE_IFSET var include)
IF (${var})
LIST (APPEND CMAKE_EXTRA_INCLUDE_FILES ${include})
ENDIF ()
ENDMACRO ()
CARES_EXTRAINCLUDE_IFSET (HAVE_STDBOOL_H stdbool.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_TYPES_H sys/types.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_ARPA_INET_H arpa/inet.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_ARPA_NAMESER_H arpa/nameser.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_NETDB_H netdb.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_NET_IF_H net/if.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_NETINET_IN_H netinet/in.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_NETINET_TCP_H netinet/tcp.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_SIGNAL_H signal.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_STDLIB_H stdlib.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_STRING_H string.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_STRINGS_H strings.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_IOCTL_H sys/ioctl.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_SELECT_H sys/select.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_SOCKET_H sys/socket.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_TIME_H sys/time.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_SYS_UIO_H sys/uio.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_TIME_H time.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_FCNTL_H fcntl.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_UNISTD_H unistd.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_WINSOCK2_H winsock2.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_WS2TCPIP_H ws2tcpip.h)
CARES_EXTRAINCLUDE_IFSET (HAVE_WINDOWS_H windows.h)
# Check Types
# CHECK_TYPE_SIZE can't be used to see if a type exists because on Apple when
# building multi-arch, it will throw an error. So we need to wrap
# CHECK_C_SOURCE_COMPILES for our tests.
MACRO (CARES_TYPE_EXISTS type var)
SET(_CARES_C_SOURCE "
#include <stdio.h>
#include <stdlib.h>
")
FOREACH(_C_HEADER ${CMAKE_EXTRA_INCLUDE_FILES})
SET(_CARES_C_SOURCE "${_CARES_C_SOURCE}
#include <${_C_HEADER}>")
ENDFOREACH(_C_HEADER)
SET(_CARES_C_SOURCE "${_CARES_C_SOURCE}
int main() {
${type} var_exists;
(void)var_exists;
return 0;
}
")
CHECK_C_SOURCE_COMPILES ("${_CARES_C_SOURCE}" ${var})
ENDMACRO ()
CARES_TYPE_EXISTS (socklen_t HAVE_SOCKLEN_T)
CARES_TYPE_EXISTS (SOCKET HAVE_TYPE_SOCKET)
CARES_TYPE_EXISTS (bool HAVE_BOOL_T)
CARES_TYPE_EXISTS (ssize_t HAVE_SSIZE_T)
CARES_TYPE_EXISTS ("long long" HAVE_LONGLONG)
CARES_TYPE_EXISTS (sig_atomic_t HAVE_SIG_ATOMIC_T)
CARES_TYPE_EXISTS ("struct addrinfo" HAVE_STRUCT_ADDRINFO)
CARES_TYPE_EXISTS ("struct in6_addr" HAVE_STRUCT_IN6_ADDR)
CARES_TYPE_EXISTS ("struct sockaddr_in6" HAVE_STRUCT_SOCKADDR_IN6)
CARES_TYPE_EXISTS ("struct sockaddr_storage" HAVE_STRUCT_SOCKADDR_STORAGE)
CARES_TYPE_EXISTS ("struct timeval" HAVE_STRUCT_TIMEVAL)
# Check for preprocessor defines
CHECK_SYMBOL_EXISTS (AF_INET6 "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_AF_INET6)
CHECK_SYMBOL_EXISTS (O_NONBLOCK "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_O_NONBLOCK)
CHECK_SYMBOL_EXISTS (FIONBIO "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_FIONBIO)
CHECK_SYMBOL_EXISTS (SIOCGIFADDR "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_IOCTL_SIOCGIFADDR)
CHECK_SYMBOL_EXISTS (MSG_NOSIGNAL "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_MSG_NOSIGNAL)
CHECK_SYMBOL_EXISTS (PF_INET6 "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_PF_INET6)
CHECK_SYMBOL_EXISTS (SO_NONBLOCK "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SO_NONBLOCK)
# XCode v8 bug: iOS when targeting less than v10, or MacOS when targeting less than v10.12 will
# say clock_gettime exists, it is a weak symbol that only exists in iOS10/MacOS10.12 and will
# cause a crash at runtime when running on older versions. Skip finding CLOCK_MONOTONIC on older
# OS's.
IF ((NOT APPLE) OR IOS_V10 OR MACOS_V1012)
CHECK_SYMBOL_EXISTS (CLOCK_MONOTONIC "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_CLOCK_GETTIME_MONOTONIC)
ENDIF ()
CHECK_STRUCT_HAS_MEMBER("struct sockaddr_in6" sin6_scope_id "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID LANGUAGE C)
# Check for "LL" numeric suffix support
CHECK_C_SOURCE_COMPILES ("int main() { int n=1234LL; return 0; }" HAVE_LL)
CHECK_SYMBOL_EXISTS (bitncmp "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_BITNCMP)
CHECK_SYMBOL_EXISTS (closesocket "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_CLOSESOCKET)
CHECK_SYMBOL_EXISTS (CloseSocket "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_CLOSESOCKET_CAMEL)
CHECK_SYMBOL_EXISTS (connect "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_CONNECT)
CHECK_SYMBOL_EXISTS (fcntl "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_FCNTL)
CHECK_SYMBOL_EXISTS (freeaddrinfo "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_FREEADDRINFO)
CHECK_SYMBOL_EXISTS (getaddrinfo "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETADDRINFO)
CHECK_SYMBOL_EXISTS (getenv "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETENV)
CHECK_SYMBOL_EXISTS (gethostbyaddr "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETHOSTBYADDR)
CHECK_SYMBOL_EXISTS (gethostbyname "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETHOSTBYNAME)
CHECK_SYMBOL_EXISTS (gethostname "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETHOSTNAME)
CHECK_SYMBOL_EXISTS (getnameinfo "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETNAMEINFO)
CHECK_SYMBOL_EXISTS (getservbyport_r "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETSERVBYPORT_R)
CHECK_SYMBOL_EXISTS (getservbyname_r "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETSERVBYNAME_R)
CHECK_SYMBOL_EXISTS (gettimeofday "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_GETTIMEOFDAY)
CHECK_SYMBOL_EXISTS (if_indextoname "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_IF_INDEXTONAME)
CHECK_SYMBOL_EXISTS (inet_net_pton "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_INET_NET_PTON)
IF (NOT WIN32)
# Disabled on Windows, because these functions are only really supported on Windows
# Vista or newer (_WIN32_WINNT >= 0x0600). Older versions of Windows may provide
# them as experimental non-working features, so we have to disable them manually.
CHECK_SYMBOL_EXISTS (inet_ntop "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_INET_NTOP)
CHECK_SYMBOL_EXISTS (inet_pton "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_INET_PTON)
ENDIF ()
CHECK_SYMBOL_EXISTS (ioctl "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_IOCTL)
CHECK_SYMBOL_EXISTS (ioctlsocket "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_IOCTLSOCKET)
CHECK_SYMBOL_EXISTS (IoctlSocket "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_IOCTLSOCKET_CAMEL)
CHECK_SYMBOL_EXISTS (recv "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_RECV)
CHECK_SYMBOL_EXISTS (recvfrom "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_RECVFROM)
CHECK_SYMBOL_EXISTS (send "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SEND)
CHECK_SYMBOL_EXISTS (setsockopt "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SETSOCKOPT)
CHECK_SYMBOL_EXISTS (socket "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_SOCKET)
CHECK_SYMBOL_EXISTS (strcasecmp "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_STRCASECMP)
CHECK_SYMBOL_EXISTS (strcmpi "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_STRCMPI)
CHECK_SYMBOL_EXISTS (strdup "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_STRDUP)
CHECK_SYMBOL_EXISTS (stricmp "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_STRICMP)
CHECK_SYMBOL_EXISTS (strncasecmp "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_STRNCASECMP)
CHECK_SYMBOL_EXISTS (strncmpi "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_STRNCMPI)
CHECK_SYMBOL_EXISTS (strnicmp "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_STRNICMP)
CHECK_SYMBOL_EXISTS (writev "${CMAKE_EXTRA_INCLUDE_FILES}" HAVE_WRITEV)
# On Android, the system headers may define __system_property_get(), but excluded
# from libc. We need to perform a link test instead of a header/symbol test.
CHECK_FUNCTION_EXISTS (__system_property_get HAVE___SYSTEM_PROPERTY_GET)
# Unset temporary data
SET (CMAKE_EXTRA_INCLUDE_FILES)
SET (CMAKE_REQUIRED_DEFINITIONS)
SET (CMAKE_REQUIRED_LIBRARIES)
################################################################################
# recv, recvfrom, send, getnameinfo, gethostname
# ARGUMENTS AND RETURN VALUES
#
# The AutoTools build tries to be really thorough here. So much so that it
# takes forever. We really don't want to do that. Lets make some educated
# guesses based on datatypes we have available, and for others, use some 'sane'
# defaults. This should be much quicker and nearly as accurate ... and even
# if not, it probably won't matter in the least.
IF (HAVE_SSIZE_T AND HAVE_SOCKLEN_T)
# If we have ssize_t and socklen_t, the API is usually sane and uses ssize_t and size_t for lengths
SET (RECVFROM_TYPE_RETV ssize_t)
SET (RECVFROM_TYPE_ARG3 size_t)
ELSE ()
SET (RECVFROM_TYPE_RETV int)
SET (RECVFROM_TYPE_ARG3 int)
ENDIF ()
IF (HAVE_TYPE_SOCKET)
# If the SOCKET type is defined, it uses socket ... should be windows only
SET (RECVFROM_TYPE_ARG1 SOCKET)
ELSE ()
SET (RECVFROM_TYPE_ARG1 int)
ENDIF()
IF (HAVE_SOCKLEN_T)
# If we have socklen_t the APIs pretty much always actually use it
SET (RECVFROM_TYPE_ARG6 "socklen_t *")
SET (GETNAMEINFO_TYPE_ARG2 socklen_t)
SET (GETNAMEINFO_TYPE_ARG46 socklen_t)
ELSE ()
SET (RECVFROM_TYPE_ARG6 "int *")
SET (GETNAMEINFO_TYPE_ARG2 int)
SET (GETNAMEINFO_TYPE_ARG46 int)
ENDIF ()
IF (WIN32)
SET (RECV_TYPE_ARG2 "char *")
ELSE ()
SET (RECV_TYPE_ARG2 "void *")
ENDIF ()
# Functions are typically consistent so the equivalent fields map ... equivalently
SET (RECV_TYPE_RETV ${RECVFROM_TYPE_RETV})
SET (SEND_TYPE_RETV ${RECVFROM_TYPE_RETV})
SET (RECV_TYPE_ARG1 ${RECVFROM_TYPE_ARG1})
SET (RECVFROM_TYPE_ARG2 ${RECV_TYPE_ARG2})
SET (SEND_TYPE_ARG1 ${RECVFROM_TYPE_ARG1})
SET (RECV_TYPE_ARG3 ${RECVFROM_TYPE_ARG3})
SET (SEND_TYPE_ARG3 ${RECVFROM_TYPE_ARG3})
SET (GETHOSTNAME_TYPE_ARG2 ${RECVFROM_TYPE_ARG3})
# These should always be "sane" values to use always
SET (RECVFROM_QUAL_ARG5 )
SET (RECVFROM_TYPE_ARG4 int)
SET (RECVFROM_TYPE_ARG5 "struct sockaddr *")
SET (RECV_TYPE_ARG4 int)
SET (GETNAMEINFO_TYPE_ARG1 "struct sockaddr *")
SET (GETNAMEINFO_TYPE_ARG7 int)
SET (SEND_TYPE_ARG2 "void *")
SET (SEND_TYPE_ARG4 int)
################################################################################
# HAVE_CXX11 ??
# HAVE_SIG_ATOMIC_T_VOLATILE ??
# Set a few variables by hand that C-Ares wants, logically, based on detection
# data.
IF (HAVE_SOCKLEN_T)
Set (CARES_TYPEOF_ARES_SOCKLEN_T "socklen_t")
ELSE ()
Set (CARES_TYPEOF_ARES_SOCKLEN_T "int")
ENDIF ()
IF (HAVE_SSIZE_T)
Set (CARES_TYPEOF_ARES_SSIZE_T "ssize_t")
ELSE ()
IF (WIN32)
IF ("${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
Set (CARES_TYPEOF_ARES_SSIZE_T "__int64")
ELSE ()
Set (CARES_TYPEOF_ARES_SSIZE_T "int")
ENDIF ()
ELSE ()
Set (CARES_TYPEOF_ARES_SSIZE_T "long")
ENDIF ()
ENDIF ()
IF (HAVE_FCNTL AND HAVE_O_NONBLOCK)
SET (HAVE_FCNTL_O_NONBLOCK 1)
ENDIF ()
IF (HAVE_IOCTL AND HAVE_FIONBIO)
SET (HAVE_IOCTL_FIONBIO 1)
ENDIF ()
IF (HAVE_IOCTLSOCKET AND HAVE_FIONBIO)
SET (HAVE_IOCTLSOCKET_FIONBIO 1)
ENDIF ()
IF (HAVE_IOCTLSOCKET_CAMEL AND HAVE_FIONBIO)
SET (HAVE_IOCTLSOCKET_CAMEL_FIONBIO 1)
ENDIF ()
IF (HAVE_GETADDRINFO)
IF (CMAKE_SYSTEM_NAME STREQUAL "Darwin" OR
CMAKE_SYSTEM_NAME STREQUAL "HPUX" OR
CMAKE_SYSTEM_NAME STREQUAL "NetBSD" OR
CMAKE_SYSTEM_NAME STREQUAL "SunOS" OR
CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR
CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
WIN32)
SET (HAVE_GETADDRINFO_THREADSAFE 1)
ENDIF ()
ENDIF ()
IF (HAVE_TIME_H AND HAVE_SYS_TIME_H)
SET (TIME_WITH_SYS_TIME 1)
ENDIF ()
IF (HAVE_GETSERVBYPORT_R)
# TODO : Should probably autodetect
IF (CMAKE_SYSTEM_NAME STREQUAL "SunOS")
SET (GETSERVBYPORT_R_ARGS 5)
ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
SET (GETSERVBYPORT_R_ARGS 4)
ELSE ()
# Probably linux
SET (GETSERVBYPORT_R_ARGS 6)
ENDIF ()
ENDIF ()
IF (HAVE_GETSERVBYNAME_R)
# TODO : Should probably autodetect
IF (CMAKE_SYSTEM_NAME STREQUAL "SunOS")
SET (GETSERVBYNAME_R_ARGS 5)
ELSEIF (CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
SET (GETSERVBYNAME_R_ARGS 4)
ELSE ()
# Probably linux
SET (GETSERVBYNAME_R_ARGS 6)
ENDIF ()
ENDIF ()
# Set some aliases used for ares_build.h
IF (HAVE_SYS_TYPES_H)
SET (CARES_HAVE_SYS_TYPES_H 1)
ENDIF ()
IF (HAVE_SYS_SOCKET_H)
SET (CARES_HAVE_SYS_SOCKET_H 1)
ENDIF()
IF (HAVE_WS2TCPIP_H)
SET (CARES_HAVE_WS2TCPIP_H 1)
ENDIF()
IF (HAVE_WINSOCK2_H)
SET (CARES_HAVE_WINSOCK2_H 1)
ENDIF()
IF (HAVE_WINDOWS_H)
SET (CARES_HAVE_WINDOWS_H 1)
ENDIF()
# Record toplevel CMakeLists.txt path
set(CARES_TOPLEVEL_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
# TRANSFORM_MAKEFILE_INC
#
# This function consumes the "Makefile.inc" autotools file, and converts it into
# "Makefile.inc.cmake", a cmake include file; transforming this:
#
# CSOURCES = ares__close_sockets.c \
# ares__get_hostent.c \
# ares__read_line.c \
# ...
#
# into this:
#
# SET (CSOURCES
# ares__close_sockets.c
# ares__get_hostent.c
# ares__read_line.c
# ...
function(TRANSFORM_MAKEFILE_INC INPUT_FILE OUTPUT_FILE)
file(READ ${INPUT_FILE} MAKEFILE_INC_TEXT)
string(REPLACE "$(top_srcdir)" "\${PROJECT_SOURCE_DIR}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
string(REPLACE "$(top_builddir)" "\${PROJECT_BINARY_DIR}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
string(REGEX REPLACE "\\\\\n" "ß!ß" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
string(REGEX REPLACE "([a-zA-Z_][a-zA-Z0-9_]*)[\t ]*=[\t ]*([^\n]*)" "SET(\\1 \\2)" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
string(REPLACE "ß!ß" "\n" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
string(REGEX REPLACE "\\$\\(([a-zA-Z_][a-zA-Z0-9_]*)\\)" "\${\\1}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT}) # Replace $() with ${}
string(REGEX REPLACE "@([a-zA-Z_][a-zA-Z0-9_]*)@" "\${\\1}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT}) # Replace @@ with ${}, even if that may not be read by CMake scripts.
file(WRITE ${OUTPUT_FILE} ${MAKEFILE_INC_TEXT})
endfunction()
# Directory for includes
ADD_SUBDIRECTORY (include)
# Directory for lib and tools
ADD_SUBDIRECTORY (src)
# Docs
ADD_SUBDIRECTORY (docs)
# Tests
IF (CARES_BUILD_TESTS OR CARES_BUILD_CONTAINER_TESTS)
ENABLE_TESTING ()
ADD_SUBDIRECTORY (test)
ENDIF ()
# Export targets
IF (CARES_INSTALL)
SET (CMAKECONFIG_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
INCLUDE (CMakePackageConfigHelpers)
CONFIGURE_PACKAGE_CONFIG_FILE (${PROJECT_NAME}-config.cmake.in ${PROJECT_NAME}-config.cmake
INSTALL_DESTINATION ${CMAKECONFIG_INSTALL_DIR}
PATH_VARS CMAKE_INSTALL_INCLUDEDIR
NO_CHECK_REQUIRED_COMPONENTS_MACRO
)
WRITE_BASIC_PACKAGE_VERSION_FILE(${PROJECT_NAME}-config-version.cmake VERSION "${CARES_VERSION}" COMPATIBILITY SameMajorVersion)
INSTALL (EXPORT ${PROJECT_NAME}-targets COMPONENT Devel DESTINATION ${CMAKECONFIG_INSTALL_DIR} NAMESPACE ${PROJECT_NAME}::)
INSTALL (FILES "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake" "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake" COMPONENT Devel DESTINATION ${CMAKECONFIG_INSTALL_DIR})
# pkgconfig support
IF (NOT CARES_SHARED)
SET (CPPFLAG_CARES_STATICLIB "-DCARES_STATICLIB")
FOREACH (LIB ${CARES_DEPENDENT_LIBS})
SET (CARES_PRIVATE_LIBS "${CARES_PRIVATE_LIBS} -l${LIB}")
ENDFOREACH ()
ENDIF ()
CONFIGURE_FILE("libcares.pc.cmake" "libcares.pc" @ONLY)
INSTALL (FILES "${CMAKE_CURRENT_BINARY_DIR}/libcares.pc" COMPONENT Devel DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
ENDIF ()
# Legacy chain-building variables (provided for compatibility with old code).
# Don't use these, external code should be updated to refer to the aliases directly (e.g., Cares::cares).
SET (CARES_FOUND 1 CACHE INTERNAL "CARES LIBRARY FOUND")
SET (CARES_LIBRARIES ${PROJECT_NAME}::cares CACHE INTERNAL "CARES LIBRARIES")
IF (CARES_INSTALL)
# Package creation
set( CPACK_PACKAGE_NAME ${PROJECT_NAME} )
set( CPACK_PACKAGE_VENDOR "Daniel Stenberg" ) # Github project owner
set( CPACK_PACKAGE_DESCRIPTION_SUMMARY "A C library for asynchronous DNS requests" )
set( CPACK_PACKAGE_HOMEPAGE_URL "https://c-ares.haxx.se/" )
set( CPACK_PACKAGE_CONTACT "https://c-ares.haxx.se/" )
set( CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR} )
set( CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR} )
set( CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH} )
set( CPACK_PACKAGE_VERSION ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH} )
set( CPACK_PACKAGE_INSTALL_DIRECTORY ${PROJECT_NAME} )
set( CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.md" )
set( CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_SOURCE_DIR}/README.md" )
set( CPACK_COMPONENT_Library_DISPLAY_NAME "c-ares Library" )
set( CPACK_COMPONENT_Library_DESCRIPTION "The c-ares binary library." )
set( CPACK_COMPONENT_Library_REQUIRED 1 )
set( CPACK_COMPONENT_Devel_DISPLAY_NAME "c-ares Development Files" )
set( CPACK_COMPONENT_Devel_DESCRIPTION "Development files for compiling against c-ares." )
set( CPACK_COMPONENT_Devel_REQUIRED 0 )
IF (CARES_BUILD_TOOLS)
set( CPACK_COMPONENT_Tools_DISPLAY_NAME "c-ares Tools" )
set( CPACK_COMPONENT_Tools_DESCRIPTION "Tools for using c-ares." )
set( CPACK_COMPONENT_Tools_REQUIRED 0 )
ENDIF ()
if( ${CMAKE_SYSTEM_NAME} STREQUAL "Linux" )
if ( "${CPACK_PACKAGE_ARCHITECTURE}" STREQUAL "" )
# Note: the architecture should default to the local architecture, but it
# in fact comes up empty. We call `uname -m` to ask the kernel instead.
EXECUTE_PROCESS( COMMAND uname -m COMMAND tr -d '\n' OUTPUT_VARIABLE CPACK_PACKAGE_ARCHITECTURE )
endif()
set( CPACK_INCLUDE_TOPLEVEL_DIRECTORY 1 )
set( CPACK_PACKAGE_RELEASE 1 )
# RPM - https://cmake.org/cmake/help/latest/cpack_gen/rpm.html
set( CPACK_RPM_PACKAGE_RELEASE ${CPACK_PACKAGE_RELEASE} )
set( CPACK_RPM_PACKAGE_ARCHITECTURE ${CPACK_PACKAGE_ARCHITECTURE} )
set( CPACK_RPM_PACKAGE_DESCRIPTION ${CPACK_PACKAGE_DESCRIPTION_SUMMARY} )
set( CPACK_RPM_PACKAGE_URL ${CPACK_PACKAGE_HOMEPAGE_URL} )
set( CPACK_RPM_PACKAGE_LICENSE "MIT" )
set( CPACK_RPM_COMPONENT_INSTALL 1 )
set( CPACK_RPM_COMPRESSION_TYPE "xz" )
set( CPACK_RPM_PACKAGE_AUTOPROV 1 )
set( CPACK_RPM_Library_PACKAGE_SUMMARY ${CPACK_COMPONENT_Library_DESCRIPTION} )
set( CPACK_RPM_Library_PACKAGE_ARCHITECTURE ${CPACK_RPM_PACKAGE_ARCHITECTURE} )
set( CPACK_RPM_Library_PACKAGE_NAME "libcares${CARES_LIB_VERSION_MAJOR}" )
set( CPACK_RPM_Library_FILE_NAME "RPM-DEFAULT" )
set( CPACK_RPM_Devel_PACKAGE_REQUIRES "cmake >= ${CMAKE_MINIMUM_REQUIRED_VERSION}, ${CPACK_RPM_Library_PACKAGE_NAME} >= ${CPACK_PACKAGE_VERSION}" )
set( CPACK_RPM_Devel_PACKAGE_SUMMARY ${CPACK_COMPONENT_Devel_DESCRIPTION} )
set( CPACK_RPM_Devel_PACKAGE_ARCHITECTURE ${CPACK_RPM_PACKAGE_ARCHITECTURE} )
set( CPACK_RPM_Devel_PACKAGE_NAME "${CPACK_PACKAGE_NAME}-devel" )
set( CPACK_RPM_Devel_FILE_NAME "RPM-DEFAULT" )
IF (CARES_BUILD_TOOLS)
set( CPACK_RPM_Tools_PACKAGE_REQUIRES "${CPACK_RPM_Library_PACKAGE_NAME} >= ${CPACK_PACKAGE_VERSION}" )
set( CPACK_RPM_Tools_PACKAGE_SUMMARY ${CPACK_COMPONENT_Tools_DESCRIPTION} )
set( CPACK_RPM_Tools_PACKAGE_ARCHITECTURE ${CPACK_RPM_PACKAGE_ARCHITECTURE} )
set( CPACK_RPM_Tools_PACKAGE_NAME "${CPACK_PACKAGE_NAME}-tools" )
set( CPACK_RPM_Tools_FILE_NAME "RPM-DEFAULT" )
ENDIF ()
# DEB - https://cmake.org/cmake/help/latest/cpack_gen/deb.html
set( CPACK_DEBIAN_PACKAGE_RELEASE ${CPACK_PACKAGE_RELEASE} )
set( CPACK_DEBIAN_PACKAGE_HOMEPAGE ${CPACK_PACKAGE_HOMEPAGE_URL} )
set( CPACK_DEB_COMPONENT_INSTALL 1 )
set( CPACK_DEBIAN_COMPRESSION_TYPE "xz")
set( CPACK_DEBIAN_PACKAGE_SHLIBDEPS 1 )
if ( ${CPACK_PACKAGE_ARCHITECTURE} STREQUAL "x86_64" )
set( CPACK_DEBIAN_PACKAGE_ARCHITECTURE "amd64" ) # DEB doesn't always use the kernel's arch name
else()
set( CPACK_DEBIAN_PACKAGE_ARCHITECTURE ${CPACK_PACKAGE_ARCHITECTURE} )
endif()
set( CPACK_DEBIAN_FILE_NAME "DEB-DEFAULT" ) # Use default naming scheme
set( CPACK_DEBIAN_LIBRARY_PACKAGE_NAME ${CPACK_RPM_Library_PACKAGE_NAME} )
set( CPACK_DEBIAN_DEVEL_PACKAGE_DEPENDS "cmake (>= ${CMAKE_MINIMUM_REQUIRED_VERSION}), ${CPACK_DEBIAN_LIBRARY_PACKAGE_NAME} (>= ${CPACK_PACKAGE_VERSION})" )
set( CPACK_DEBIAN_DEVEL_PACKAGE_NAME "${CPACK_PACKAGE_NAME}-dev" )
IF (CARES_BUILD_TOOLS)
set( CPACK_DEBIAN_TOOLS_PACKAGE_NAME "${CPACK_PACKAGE_NAME}-tools" )
set( CPACK_DEBIAN_TOOLS_PACKAGE_SHLIBDEPS OFF ) # dpkg-shlibdeps can't find the libs we built
set( CPACK_DEBIAN_TOOLS_PACKAGE_DEPENDS "${CPACK_DEBIAN_LIBRARY_PACKAGE_NAME} (>= ${CPACK_PACKAGE_VERSION})" )
ENDIF ()
elseif( ${CMAKE_HOST_WIN32} )
set( CPACK_NSIS_ENABLE_UNINSTALL_BEFORE_INSTALL ON )
set( CPACK_NSIS_DISPLAY_NAME ${PROJECT_NAME} )
set( CPACK_NSIS_PACKAGE_NAME ${PROJECT_NAME} )
set( CPACK_NSIS_URL_INFO_ABOUT ${CPACK_PACKAGE_HOMEPAGE_URL} )
endif()
# This must always be last!
include( CPack )
ENDIF ()