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dnl ===========================================================================
dnl Feature macro stuff borrowed from Python's configure.in
dnl
dnl For license information, see
dnl <http://www.python.org/download/releases/2.6.2/license/>.
dnl ===========================================================================
# The later defininition of _XOPEN_SOURCE disables certain features
# on Linux, so we need _GNU_SOURCE to re-enable them (makedev, tm_zone).
AC_DEFINE(_GNU_SOURCE, 1, [Define on Linux to activate all library features])
# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on NetBSD, so we need _NETBSD_SOURCE to re-enable
# them.
AC_DEFINE(_NETBSD_SOURCE, 1, [Define on NetBSD to activate all library features])
# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on FreeBSD, so we need __BSD_VISIBLE to re-enable
# them.
AC_DEFINE(__BSD_VISIBLE, 1, [Define on FreeBSD to activate all library features])
# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# u_int on Irix 5.3. Defining _BSD_TYPES brings it back.
AC_DEFINE(_BSD_TYPES, 1, [Define on Irix to enable u_int])
# The later defininition of _XOPEN_SOURCE and _POSIX_C_SOURCE disables
# certain features on Mac OS X, so we need _DARWIN_C_SOURCE to re-enable
# them.
AC_DEFINE(_DARWIN_C_SOURCE, 1, [Define on Darwin to activate all library features])
define_xopen_source=yes
ac_sys_system=`uname -s`
if test "$ac_sys_system" = "AIX" -o "$ac_sys_system" = "Monterey64" \
-o "$ac_sys_system" = "UnixWare" -o "$ac_sys_system" = "OpenUNIX"; then
ac_sys_release=`uname -v`
else
ac_sys_release=`uname -r`
fi
# Some systems cannot stand _XOPEN_SOURCE being defined at all; they
# disable features if it is defined, without any means to access these
# features as extensions. For these systems, we skip the definition of
# _XOPEN_SOURCE. Before adding a system to the list to gain access to
# some feature, make sure there is no alternative way to access this
# feature. Also, when using wildcards, make sure you have verified the
# need for not defining _XOPEN_SOURCE on all systems matching the
# wildcard, and that the wildcard does not include future systems
# (which may remove their limitations).
dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
case $ac_sys_system/$ac_sys_release in
# On OpenBSD, select(2) is not available if _XOPEN_SOURCE is defined,
# even though select is a POSIX function. Reported by J. Ribbens.
# Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
OpenBSD/2.* | OpenBSD/3.@<:@0123456789@:>@ | OpenBSD/4.@<:@0123@:>@)
define_xopen_source=no
# OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
# also defined. This can be overridden by defining _BSD_SOURCE
# As this has a different meaning on Linux, only define it on OpenBSD
AC_DEFINE(_BSD_SOURCE, 1, [Define on OpenBSD to activate all library features])
;;
# Defining _XOPEN_SOURCE on NetBSD version prior to the introduction of
# _NETBSD_SOURCE disables certain features (eg. setgroups). Reported by
# Marc Recht
NetBSD/1.5 | NetBSD/1.5.* | NetBSD/1.6 | NetBSD/1.6.* | NetBSD/1.6@<:@A-S@:>@)
define_xopen_source=no;;
# On Solaris 2.6, sys/wait.h is inconsistent in the usage
# of union __?sigval. Reported by Stuart Bishop.
SunOS/5.6)
define_xopen_source=no;;
# On UnixWare 7, u_long is never defined with _XOPEN_SOURCE,
# but used in /usr/include/netinet/tcp.h. Reported by Tim Rice.
# Reconfirmed for 7.1.4 by Martin v. Loewis.
OpenUNIX/8.0.0| UnixWare/7.1.@<:@0-4@:>@)
define_xopen_source=no;;
# On OpenServer 5, u_short is never defined with _XOPEN_SOURCE,
# but used in struct sockaddr.sa_family. Reported by Tim Rice.
SCO_SV/3.2)
define_xopen_source=no;;
# On FreeBSD 4, the math functions C89 does not cover are never defined
# with _XOPEN_SOURCE and __BSD_VISIBLE does not re-enable them.
FreeBSD/4.*)
define_xopen_source=no;;
# On MacOS X 10.2, a bug in ncurses.h means that it craps out if
# _XOPEN_EXTENDED_SOURCE is defined. Apparently, this is fixed in 10.3, which
# identifies itself as Darwin/7.*
# On Mac OS X 10.4, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
# disables platform specific features beyond repair.
# On Mac OS X 10.3, defining _POSIX_C_SOURCE or _XOPEN_SOURCE
# has no effect, don't bother defining them
Darwin/@<:@6789@:>@.*)
define_xopen_source=no;;
# On AIX 4 and 5.1, mbstate_t is defined only when _XOPEN_SOURCE == 500 but
# used in wcsnrtombs() and mbsnrtowcs() even if _XOPEN_SOURCE is not defined
# or has another value. By not (re)defining it, the defaults come in place.
AIX/4)
define_xopen_source=no;;
AIX/5|AIX/7)
if test `uname -r` -eq 1; then
define_xopen_source=no
fi
;;
# On QNX 6.3.2, defining _XOPEN_SOURCE prevents netdb.h from
# defining NI_NUMERICHOST.
QNX/6.3.2)
define_xopen_source=no
;;
esac
if test $define_xopen_source = yes
then
# On Solaris w/ g++ it appears that _XOPEN_SOURCE has to be
# defined precisely as g++ defines it
# Furthermore, on Solaris 10, XPG6 requires the use of a C99
# compiler
case $ac_sys_system/$ac_sys_release in
SunOS/5.8|SunOS/5.9|SunOS/5.10)
AC_DEFINE(_XOPEN_SOURCE, 500,
Define to the level of X/Open that your system supports)
;;
*)
AC_DEFINE(_XOPEN_SOURCE, 600,
Define to the level of X/Open that your system supports)
;;
esac
# On Tru64 Unix 4.0F, defining _XOPEN_SOURCE also requires
# definition of _XOPEN_SOURCE_EXTENDED and _POSIX_C_SOURCE, or else
# several APIs are not declared. Since this is also needed in some
# cases for HP-UX, we define it globally.
# except for Solaris 10, where it must not be defined,
# as it implies XPG4.2
case $ac_sys_system/$ac_sys_release in
SunOS/5.10|SunOS/5.11)
AC_DEFINE(__EXTENSIONS__, 1,
Define to activate Unix95-and-earlier features)
;;
*)
AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1,
Define to activate Unix95-and-earlier features)
;;
esac
AC_DEFINE(_POSIX_C_SOURCE, 200112L, Define to activate features from IEEE Stds 1003.1-2001)
fi
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