forked from Flipkart/collectd
/
configure.ac
executable file
·5807 lines (5321 loc) · 152 KB
/
configure.ac
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dnl Process this file with autoconf to produce a configure script.
AC_INIT([collectd],[m4_esyscmd(./version-gen.sh)])
AC_CONFIG_SRCDIR(src/collectd.c)
AC_CONFIG_HEADERS(src/config.h)
AC_CONFIG_AUX_DIR([libltdl/config])
m4_ifdef([LT_PACKAGE_VERSION],
# libtool >= 2.2
[
LT_CONFIG_LTDL_DIR([libltdl])
LT_INIT([dlopen])
LTDL_INIT([convenience])
AC_DEFINE(LIBTOOL_VERSION, 2, [Define to used libtool version.])
]
,
# libtool <= 1.5
[
AC_LIBLTDL_CONVENIENCE
AC_SUBST(LTDLINCL)
AC_SUBST(LIBLTDL)
AC_LIBTOOL_DLOPEN
AC_CONFIG_SUBDIRS(libltdl)
AC_DEFINE(LIBTOOL_VERSION, 1, [Define to used libtool version.])
]
)
AM_INIT_AUTOMAKE([tar-pax dist-bzip2 foreign])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
AC_LANG(C)
AC_PREFIX_DEFAULT("/opt/collectd")
AC_SYS_LARGEFILE
#
# Checks for programs.
#
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AM_PROG_CC_C_O
AM_CONDITIONAL(COMPILER_IS_GCC, test "x$GCC" = "xyes")
AC_DISABLE_STATIC
AC_PROG_LIBTOOL
AC_PROG_LEX
AC_PROG_YACC
PKG_PROG_PKG_CONFIG
AC_CHECK_PROG([have_protoc_c], [protoc-c], [yes], [no])
AC_CHECK_HEADERS([google/protobuf-c/protobuf-c.h],
[have_protobuf_c_h="yes"],
[have_protobuf_c_h="no"])
if test "x$have_protoc_c" = "xyes" && test "x$have_protobuf_c_h" != "xyes"
then
have_protoc_c="no (unable to find <google/protobuf-c/protobuf-c.h>)"
fi
AM_CONDITIONAL(HAVE_PROTOC_C, test "x$have_protoc_c" = "xyes")
AC_MSG_CHECKING([for kernel type ($host_os)])
case $host_os in
*linux*)
AC_DEFINE([KERNEL_LINUX], 1, [True if program is to be compiled for a Linux kernel])
ac_system="Linux"
;;
*solaris*)
AC_DEFINE([KERNEL_SOLARIS], 1, [True if program is to be compiled for a Solaris kernel])
ac_system="Solaris"
;;
*darwin*)
AC_DEFINE([KERNEL_DARWIN], 1, [True if program is to be compiled for a Darwin kernel])
ac_system="Darwin"
;;
*openbsd*)
AC_DEFINE([KERNEL_OPENBSD], 1, [True if program is to be compiled for an OpenBSD kernel])
ac_system="OpenBSD"
;;
*aix*)
AC_DEFINE([KERNEL_AIX], 1, [True if program is to be compiled for a AIX kernel])
ac_system="AIX"
;;
*freebsd*)
AC_DEFINE([KERNEL_FREEBSD], 1, [True if program is to be compiled for a FreeBSD kernel])
ac_system="FreeBSD"
;;
*)
ac_system="unknown"
esac
AC_MSG_RESULT([$ac_system])
AM_CONDITIONAL([BUILD_LINUX],[test "x$x$ac_system" = "xLinux"])
AM_CONDITIONAL([BUILD_SOLARIS],[test "x$x$ac_system" = "xSolaris"])
AM_CONDITIONAL([BUILD_DARWIN],[test "x$x$ac_system" = "xDarwin"])
AM_CONDITIONAL([BUILD_OPENBSD],[test "x$x$ac_system" = "xOpenBSD"])
AM_CONDITIONAL([BUILD_AIX],[test "x$x$ac_system" = "xAIX"])
AM_CONDITIONAL([BUILD_FREEBSD],[test "x$x$ac_system" = "xFreeBSD"])
if test "x$ac_system" = "xLinux"
then
AC_ARG_VAR([KERNEL_DIR], [path to Linux kernel sources])
if test -z "$KERNEL_DIR"
then
KERNEL_DIR="/lib/modules/`uname -r`/source"
fi
KERNEL_CFLAGS="-I$KERNEL_DIR/include"
AC_SUBST(KERNEL_CFLAGS)
fi
if test "x$ac_system" = "xSolaris"
then
AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1, [Define to enforce POSIX thread semantics under Solaris.])
AC_DEFINE(_REENTRANT, 1, [Define to enable reentrancy interfaces.])
fi
if test "x$ac_system" = "xAIX"
then
AC_DEFINE(_THREAD_SAFE_ERRNO, 1, [Define to use the thread-safe version of errno under AIX.])
fi
# Where to install .pc files.
pkgconfigdir="${libdir}/pkgconfig"
AC_SUBST(pkgconfigdir)
# Check for standards compliance mode
AC_ARG_ENABLE(standards,
AS_HELP_STRING([--enable-standards], [Enable standards compliance mode]),
[enable_standards="$enableval"],
[enable_standards="no"])
if test "x$enable_standards" = "xyes"
then
AC_DEFINE(_ISOC99_SOURCE, 1, [Define to enforce ISO C99 compliance.])
AC_DEFINE(_POSIX_C_SOURCE, 200809L, [Define to enforce POSIX.1-2008 compliance.])
AC_DEFINE(_XOPEN_SOURCE, 700, [Define to enforce X/Open 7 (XSI) compliance.])
AC_DEFINE(_REENTRANT, 1, [Define to enable reentrancy interfaces.])
if test "x$GCC" = "xyes"
then
CFLAGS="$CFLAGS -std=c99"
fi
fi
AM_CONDITIONAL(BUILD_FEATURE_STANDARDS, test "x$enable_standards" = "xyes")
#
# Checks for header files.
#
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_HEADER_DIRENT
AC_HEADER_STDBOOL
AC_CHECK_HEADERS(stdio.h errno.h math.h stdarg.h syslog.h fcntl.h signal.h assert.h sys/types.h sys/socket.h sys/select.h poll.h netdb.h arpa/inet.h sys/resource.h sys/param.h kstat.h regex.h sys/ioctl.h endian.h sys/isa_defs.h fnmatch.h libgen.h)
# For ping library
AC_CHECK_HEADERS(netinet/in_systm.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
])
AC_CHECK_HEADERS(netinet/in.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
])
AC_CHECK_HEADERS(netinet/ip.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
])
AC_CHECK_HEADERS(netinet/ip_icmp.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#if HAVE_NETINET_IP_H
# include <netinet/ip.h>
#endif
])
AC_CHECK_HEADERS(netinet/ip_var.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#if HAVE_NETINET_IP_H
# include <netinet/ip.h>
#endif
])
AC_CHECK_HEADERS(netinet/ip6.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
])
AC_CHECK_HEADERS(netinet/icmp6.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#if HAVE_NETINET_IP6_H
# include <netinet/ip6.h>
#endif
])
AC_CHECK_HEADERS(netinet/tcp.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#if HAVE_NETINET_IP_H
# include <netinet/ip.h>
#endif
])
AC_CHECK_HEADERS(netinet/udp.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#if HAVE_NETINET_IP_H
# include <netinet/ip.h>
#endif
])
# For cpu modules
AC_CHECK_HEADERS(sys/dkstat.h)
if test "x$ac_system" = "xDarwin"
then
AC_CHECK_HEADERS(mach/mach_init.h mach/host_priv.h mach/mach_error.h mach/mach_host.h mach/mach_port.h mach/mach_types.h mach/message.h mach/processor_set.h mach/processor.h mach/processor_info.h mach/task.h mach/thread_act.h mach/vm_region.h mach/vm_map.h mach/vm_prot.h mach/vm_statistics.h mach/kern_return.h)
AC_CHECK_HEADERS(CoreFoundation/CoreFoundation.h IOKit/IOKitLib.h IOKit/IOTypes.h IOKit/ps/IOPSKeys.h IOKit/IOBSD.h IOKit/storage/IOBlockStorageDriver.h)
# For the battery plugin
AC_CHECK_HEADERS(IOKit/ps/IOPowerSources.h, [], [],
[
#if HAVE_IOKIT_IOKITLIB_H
# include <IOKit/IOKitLib.h>
#endif
#if HAVE_IOKIT_IOTYPES_H
# include <IOKit/IOTypes.h>
#endif
])
fi
AC_CHECK_HEADERS(sys/sysctl.h, [], [],
[
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
])
AC_MSG_CHECKING([for sysctl kern.cp_times])
if test -x /sbin/sysctl
then
/sbin/sysctl kern.cp_times 2>/dev/null
if test $? -eq 0
then
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_SYSCTL_KERN_CP_TIMES, 1,
[Define if sysctl supports kern.cp_times])
else
AC_MSG_RESULT([no])
fi
else
AC_MSG_RESULT([no])
fi
# For hddtemp module
AC_CHECK_HEADERS(linux/major.h)
# For md module (Linux only)
if test "x$ac_system" = "xLinux"
then
AC_CHECK_HEADERS(linux/raid/md_u.h,
[have_linux_raid_md_u_h="yes"],
[have_linux_raid_md_u_h="no"],
[
#include <sys/ioctl.h>
#include <linux/major.h>
#include <linux/types.h>
])
else
have_linux_raid_md_u_h="no"
fi
# For the swap module
have_linux_wireless_h="no"
if test "x$ac_system" = "xLinux"
then
AC_CHECK_HEADERS(linux/wireless.h,
[have_linux_wireless_h="yes"],
[have_linux_wireless_h="no"],
[
#include <dirent.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
])
fi
# For the swap module
have_sys_swap_h="yes"
AC_CHECK_HEADERS(sys/swap.h vm/anon.h, [], [have_sys_swap_h="no"],
[
#undef _FILE_OFFSET_BITS
#undef _LARGEFILE64_SOURCE
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
])
if test "x$have_sys_swap_h$ac_system" = "xnoSolaris"
then
hint_64=""
if test "x$GCC" = "xyes"
then
hint_64="CFLAGS='-m64'"
else
hint_64="CFLAGS='-xarch=v9'"
fi
AC_MSG_NOTICE([Solaris detected and sys/swap.h not usable. Try building a 64-bit binary ($hint_64 ./configure).])
fi
# For load module
# For the processes plugin
# For users module
AC_CHECK_HEADERS(sys/loadavg.h linux/config.h utmp.h utmpx.h)
# For interface plugin
AC_CHECK_HEADERS(ifaddrs.h)
AC_CHECK_HEADERS(net/if.h, [], [],
[
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
])
AC_CHECK_HEADERS(linux/if.h, [], [],
[
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
])
AC_CHECK_HEADERS(linux/inet_diag.h, [], [],
[
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#if HAVE_LINUX_INET_DIAG_H
# include <linux/inet_diag.h>
#endif
])
AC_CHECK_HEADERS(linux/netdevice.h, [], [],
[
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#if HAVE_LINUX_IF_H
# include <linux/if.h>
#endif
])
# For ethstat module
AC_CHECK_HEADERS(linux/sockios.h,
[have_linux_sockios_h="yes"],
[have_linux_sockios_h="no"],
[
#if HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#if HAVE_NET_IF_H
# include <net/if.h>
#endif
])
AC_CHECK_HEADERS(linux/ethtool.h,
[have_linux_ethtool_h="yes"],
[have_linux_ethtool_h="no"],
[
#if HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#if HAVE_NET_IF_H
# include <net/if.h>
#endif
#if HAVE_LINUX_SOCKIOS_H
# include <linux/sockios.h>
#endif
])
# For ipvs module
have_linux_ip_vs_h="no"
have_net_ip_vs_h="no"
have_ip_vs_h="no"
ip_vs_h_needs_kernel_cflags="no"
if test "x$ac_system" = "xLinux"
then
AC_CHECK_HEADERS(linux/ip_vs.h, [have_linux_ip_vs_h="yes"])
AC_CHECK_HEADERS(net/ip_vs.h, [have_net_ip_vs_h="yes"])
AC_CHECK_HEADERS(ip_vs.h, [have_ip_vs_h="yes"])
if test "x$have_linux_ip_vs_h$have_net_ip_vs_h$have_ip_vs_h" = "xnonono" && test -d "$KERNEL_DIR"
then
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $KERNEL_CFLAGS"
AC_MSG_NOTICE([Did not find ip_vs.h. Trying again using headers from $KERNEL_DIR.])
AC_CHECK_HEADERS(linux/ip_vs.h, [have_linux_ip_vs_h="yes"])
AC_CHECK_HEADERS(net/ip_vs.h, [have_net_ip_vs_h="yes"])
AC_CHECK_HEADERS(ip_vs.h, [have_ip_vs_h="yes"])
if test "x$have_linux_ip_vs_h" = "xyes" || test "x$have_net_ip_vs_h" = "xyes" || test "x$have_ip_vs_h" = "xyes"
then
ip_vs_h_needs_kernel_cflags="yes"
fi
CFLAGS="$SAVE_CFLAGS"
fi
fi
AM_CONDITIONAL(IP_VS_H_NEEDS_KERNEL_CFLAGS, test "x$ip_vs_h_needs_kernel_cflags" = "xyes")
# For quota module
AC_CHECK_HEADERS(sys/ucred.h, [], [],
[
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
])
# For mount interface
AC_CHECK_HEADERS(sys/mount.h, [], [],
[
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
])
# For the email plugin
AC_CHECK_HEADERS(linux/un.h, [], [],
[
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
])
AC_CHECK_HEADERS(pwd.h grp.h sys/un.h ctype.h limits.h xfs/xqm.h fs_info.h fshelp.h paths.h mntent.h mnttab.h sys/fstyp.h sys/fs_types.h sys/mntent.h sys/mnttab.h sys/statfs.h sys/statvfs.h sys/vfs.h sys/vfstab.h kvm.h wordexp.h)
# For the dns plugin
AC_CHECK_HEADERS(arpa/nameser.h)
AC_CHECK_HEADERS(arpa/nameser_compat.h, [], [],
[
#if HAVE_ARPA_NAMESER_H
# include <arpa/nameser.h>
#endif
])
AC_CHECK_HEADERS(net/if_arp.h, [], [],
[#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
])
AC_CHECK_HEADERS(net/ppp_defs.h)
AC_CHECK_HEADERS(net/if_ppp.h, [], [],
[#if HAVE_NET_PPP_DEFS_H
# include <net/ppp_defs.h>
#endif
])
AC_CHECK_HEADERS(netinet/if_ether.h, [], [],
[#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#if HAVE_NET_IF_H
# include <net/if.h>
#endif
#if HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
])
AC_CHECK_HEADERS(netinet/ip_compat.h)
have_net_pfvar_h="no"
AC_CHECK_HEADERS(net/pfvar.h,
[have_net_pfvar_h="yes"],
[have_net_pfvar_h="no"],
[
#if HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#if HAVE_NET_IF_H
# include <net/if.h>
#endif
])
# For the multimeter plugin
have_termios_h="no"
AC_CHECK_HEADERS(termios.h, [have_termios_h="yes"])
#
# Checks for typedefs, structures, and compiler characteristics.
#
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_HEADER_TIME
#
# Checks for library functions.
#
AC_PROG_GCC_TRADITIONAL
AC_CHECK_FUNCS(gettimeofday select strdup strtol getaddrinfo getnameinfo strchr memcpy strstr strcmp strncmp strncpy strlen strncasecmp strcasecmp openlog closelog sysconf setenv if_indextoname)
AC_FUNC_STRERROR_R
SAVE_CFLAGS="$CFLAGS"
# Emulate behavior of src/Makefile.am
if test "x$GCC" = "xyes"
then
CFLAGS="$CFLAGS -Wall -Werror"
fi
AC_CACHE_CHECK([for strtok_r],
[c_cv_have_strtok_r_default],
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[[
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
]]],
[[[
char buffer[] = "foo,bar,baz";
char *token;
char *dummy;
char *saveptr;
dummy = buffer;
saveptr = NULL;
while ((token = strtok_r (dummy, ",", &saveptr)) != NULL)
{
dummy = NULL;
printf ("token = %s;\n", token);
}
]]]
)],
[c_cv_have_strtok_r_default="yes"],
[c_cv_have_strtok_r_default="no"]
)
)
if test "x$c_cv_have_strtok_r_default" = "xno"
then
CFLAGS="$CFLAGS -D_REENTRANT=1"
AC_CACHE_CHECK([if strtok_r needs _REENTRANT],
[c_cv_have_strtok_r_reentrant],
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[[
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
]]],
[[[
char buffer[] = "foo,bar,baz";
char *token;
char *dummy;
char *saveptr;
dummy = buffer;
saveptr = NULL;
while ((token = strtok_r (dummy, ",", &saveptr)) != NULL)
{
dummy = NULL;
printf ("token = %s;\n", token);
}
]]]
)],
[c_cv_have_strtok_r_reentrant="yes"],
[AC_MSG_FAILURE([strtok_r isn't available. Please file a bugreport!])]
)
)
fi
CFLAGS="$SAVE_CFLAGS"
if test "x$c_cv_have_strtok_r_reentrant" = "xyes"
then
CFLAGS="$CFLAGS -D_REENTRANT=1"
fi
AC_CHECK_FUNCS(getpwnam_r getgrnam_r setgroups regcomp regerror regexec regfree)
socket_needs_socket="no"
AC_CHECK_FUNCS(socket, [], AC_CHECK_LIB(socket, socket, [socket_needs_socket="yes"], AC_MSG_ERROR(cannot find socket)))
AM_CONDITIONAL(BUILD_WITH_LIBSOCKET, test "x$socket_needs_socket" = "xyes")
clock_gettime_needs_rt="no"
clock_gettime_needs_posix4="no"
have_clock_gettime="no"
AC_CHECK_FUNCS(clock_gettime, [have_clock_gettime="yes"])
if test "x$have_clock_gettime" = "xno"
then
AC_CHECK_LIB(rt, clock_gettime, [clock_gettime_needs_rt="yes"
have_clock_gettime="yes"])
fi
if test "x$have_clock_gettime" = "xno"
then
AC_CHECK_LIB(posix4, clock_gettime, [clock_gettime_needs_posix4="yes"
have_clock_gettime="yes"])
fi
if test "x$have_clock_gettime" = "xyes"
then
AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [Define if the clock_gettime(2) function is available.])
else
AC_MSG_WARN(cannot find clock_gettime)
fi
nanosleep_needs_rt="no"
nanosleep_needs_posix4="no"
AC_CHECK_FUNCS(nanosleep,
[],
AC_CHECK_LIB(rt, nanosleep,
[nanosleep_needs_rt="yes"],
AC_CHECK_LIB(posix4, nanosleep,
[nanosleep_needs_posix4="yes"],
AC_MSG_ERROR(cannot find nanosleep))))
AM_CONDITIONAL(BUILD_WITH_LIBRT, test "x$clock_gettime_needs_rt" = "xyes" || test "x$nanosleep_needs_rt" = "xyes")
AM_CONDITIONAL(BUILD_WITH_LIBPOSIX4, test "x$clock_gettime_needs_posix4" = "xyes" || test "x$nanosleep_needs_posix4" = "xyes")
AC_CHECK_FUNCS(sysctl, [have_sysctl="yes"], [have_sysctl="no"])
AC_CHECK_FUNCS(sysctlbyname, [have_sysctlbyname="yes"], [have_sysctlbyname="no"])
AC_CHECK_FUNCS(host_statistics, [have_host_statistics="yes"], [have_host_statistics="no"])
AC_CHECK_FUNCS(processor_info, [have_processor_info="yes"], [have_processor_info="no"])
AC_CHECK_FUNCS(thread_info, [have_thread_info="yes"], [have_thread_info="no"])
AC_CHECK_FUNCS(statfs, [have_statfs="yes"], [have_statfs="no"])
AC_CHECK_FUNCS(statvfs, [have_statvfs="yes"], [have_statvfs="no"])
AC_CHECK_FUNCS(getifaddrs, [have_getifaddrs="yes"], [have_getifaddrs="no"])
AC_CHECK_FUNCS(getloadavg, [have_getloadavg="yes"], [have_getloadavg="no"])
AC_CHECK_FUNCS(syslog, [have_syslog="yes"], [have_syslog="no"])
AC_CHECK_FUNCS(getutent, [have_getutent="yes"], [have_getutent="no"])
AC_CHECK_FUNCS(getutxent, [have_getutxent="yes"], [have_getutxent="no"])
# Check for strptime {{{
if test "x$GCC" = "xyes"
then
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wextra -Werror"
fi
AC_CHECK_FUNCS(strptime, [have_strptime="yes"], [have_strptime="no"])
if test "x$have_strptime" = "xyes"
then
AC_CACHE_CHECK([whether strptime is exported by default],
[c_cv_have_strptime_default],
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[[
#include <time.h>
]]],
[[[
struct tm stm;
(void) strptime ("2010-12-30%13:42:42", "%Y-%m-%dT%T", &stm);
]]]
)],
[c_cv_have_strptime_default="yes"],
[c_cv_have_strptime_default="no"]))
fi
if test "x$have_strptime" = "xyes" && test "x$c_cv_have_strptime_default" = "xno"
then
AC_CACHE_CHECK([whether strptime needs standards mode],
[c_cv_have_strptime_standards],
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[[
#ifndef _ISOC99_SOURCE
# define _ISOC99_SOURCE 1
#endif
#ifndef _POSIX_C_SOURCE
# define _POSIX_C_SOURCE 200112L
#endif
#ifndef _XOPEN_SOURCE
# define _XOPEN_SOURCE 500
#endif
#include <time.h>
]]],
[[[
struct tm stm;
(void) strptime ("2010-12-30%13:42:42", "%Y-%m-%dT%T", &stm);
]]]
)],
[c_cv_have_strptime_standards="yes"],
[c_cv_have_strptime_standards="no"]))
if test "x$c_cv_have_strptime_standards" = "xyes"
then
AC_DEFINE([STRPTIME_NEEDS_STANDARDS], 1, [Set to true if strptime is only exported in X/Open mode (GNU libc).])
else
have_strptime="no"
fi
fi
if test "x$GCC" = "xyes"
then
CFLAGS="$SAVE_CFLAGS"
fi
# }}} Check for strptime
AC_CHECK_FUNCS(swapctl, [have_swapctl="yes"], [have_swapctl="no"])
if test "x$have_swapctl" = "xyes"; then
AC_CACHE_CHECK([whether swapctl takes two arguments],
[c_cv_have_swapctl_two_args],
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[[
#if HAVE_SYS_SWAP_H && !defined(_LP64) && _FILE_OFFSET_BITS == 64
# undef _FILE_OFFSET_BITS
# undef _LARGEFILE64_SOURCE
#endif
#include <sys/stat.h>
#include <sys/swap.h>
]]],
[[[
int num = swapctl(0, NULL);
]]]
)],
[c_cv_have_swapctl_two_args="yes"],
[c_cv_have_swapctl_two_args="no"]
)
)
AC_CACHE_CHECK([whether swapctl takes three arguments],
[c_cv_have_swapctl_three_args],
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[[
#if HAVE_SYS_SWAP_H && !defined(_LP64) && _FILE_OFFSET_BITS == 64
# undef _FILE_OFFSET_BITS
# undef _LARGEFILE64_SOURCE
#endif
#include <sys/stat.h>
#include <sys/swap.h>
]]],
[[[
int num = swapctl(0, NULL, 0);
]]]
)],
[c_cv_have_swapctl_three_args="yes"],
[c_cv_have_swapctl_three_args="no"]
)
)
fi
# Check for different versions of `swapctl' here..
if test "x$have_swapctl" = "xyes"; then
if test "x$c_cv_have_swapctl_two_args" = "xyes"; then
AC_DEFINE(HAVE_SWAPCTL_TWO_ARGS, 1,
[Define if the function swapctl exists and takes two arguments.])
fi
if test "x$c_cv_have_swapctl_three_args" = "xyes"; then
AC_DEFINE(HAVE_SWAPCTL_THREE_ARGS, 1,
[Define if the function swapctl exists and takes three arguments.])
fi
fi
# Check for NAN
AC_ARG_WITH(nan-emulation, [AS_HELP_STRING([--with-nan-emulation], [use emulated NAN. For crosscompiling only.])],
[
if test "x$withval" = "xno"; then
nan_type="none"
else if test "x$withval" = "xyes"; then
nan_type="zero"
else
nan_type="$withval"
fi; fi
],
[nan_type="none"])
if test "x$nan_type" = "xnone"; then
AC_CACHE_CHECK([whether NAN is defined by default],
[c_cv_have_nan_default],
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[[
#include <stdlib.h>
#include <math.h>
static double foo = NAN;
]]],
[[[
if (isnan (foo))
return 0;
else
return 1;
]]]
)],
[c_cv_have_nan_default="yes"],
[c_cv_have_nan_default="no"]
)
)
if test "x$c_cv_have_nan_default" = "xyes"
then
nan_type="default"
fi
fi
if test "x$nan_type" = "xnone"; then
AC_CACHE_CHECK([whether NAN is defined by __USE_ISOC99],
[c_cv_have_nan_isoc],
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[[
#include <stdlib.h>
#define __USE_ISOC99 1
#include <math.h>
static double foo = NAN;
]]],
[[[
if (isnan (foo))
return 0;
else
return 1;
]]]
)],
[c_cv_have_nan_isoc="yes"],
[c_cv_have_nan_isoc="no"]
)
)
if test "x$c_cv_have_nan_isoc" = "xyes"
then
nan_type="isoc99"
fi
fi
if test "x$nan_type" = "xnone"; then
SAVE_LDFLAGS=$LDFLAGS
LDFLAGS="$LDFLAGS -lm"
AC_CACHE_CHECK([whether NAN can be defined by 0/0],
[c_cv_have_nan_zero],
AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[[
#include <stdlib.h>
#include <math.h>
#ifdef NAN
# undef NAN
#endif
#define NAN (0.0 / 0.0)
#ifndef isnan
# define isnan(f) ((f) != (f))
#endif
static double foo = NAN;
]]],
[[[
if (isnan (foo))
return 0;
else
return 1;
]]]
)],
[c_cv_have_nan_zero="yes"],
[c_cv_have_nan_zero="no"]
)
)
LDFLAGS=$SAVE_LDFLAGS
if test "x$c_cv_have_nan_zero" = "xyes"
then
nan_type="zero"
fi
fi
if test "x$nan_type" = "xdefault"; then
AC_DEFINE(NAN_STATIC_DEFAULT, 1,
[Define if NAN is defined by default and can initialize static variables.])
else if test "x$nan_type" = "xisoc99"; then
AC_DEFINE(NAN_STATIC_ISOC, 1,
[Define if NAN is defined by __USE_ISOC99 and can initialize static variables.])
else if test "x$nan_type" = "xzero"; then
AC_DEFINE(NAN_ZERO_ZERO, 1,
[Define if NAN can be defined as (0.0 / 0.0)])
else
AC_MSG_ERROR([Didn't find out how to statically initialize variables to NAN. Sorry.])
fi; fi; fi
AC_ARG_WITH(fp-layout, [AS_HELP_STRING([--with-fp-layout], [set the memory layout of doubles. For crosscompiling only.])],
[
if test "x$withval" = "xnothing"; then
fp_layout_type="nothing"
else if test "x$withval" = "xendianflip"; then
fp_layout_type="endianflip"
else if test "x$withval" = "xintswap"; then
fp_layout_type="intswap"
else
AC_MSG_ERROR([Invalid argument for --with-fp-layout. Valid arguments are: nothing, endianflip, intswap]);
fi; fi; fi
],
[fp_layout_type="unknown"])
if test "x$fp_layout_type" = "xunknown"; then
AC_CACHE_CHECK([if doubles are stored in x86 representation],
[c_cv_fp_layout_need_nothing],
AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[[
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#if HAVE_STDINT_H
# include <stdint.h>
#endif
#if HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#if HAVE_STDBOOL_H
# include <stdbool.h>
#endif
]]],
[[[
uint64_t i0;