gcc/config/largefile.m4

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# This macro wraps AC_SYS_LARGEFILE with one exception for Solaris.
# PR 9992/binutils: We have to replicate everywhere the behaviour of
# bfd's configure script so that all the directories agree on the size
# of structures used to describe files.
AC_DEFUN([ACX_LARGEFILE],[dnl
# The tests for host and target for $enable_largefile require
# canonical names.
AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_CANONICAL_TARGET])
# As the $enable_largefile decision depends on --enable-plugins we must set it
# even in directories otherwise not depending on the $plugins option.
AC_PLUGINS
case "${host}" in
changequote(,)dnl
sparc-*-solaris*|i[3-7]86-*-solaris*)
changequote([,])dnl
# On native 32bit sparc and ia32 solaris, large-file and procfs support
# are mutually exclusive; and without procfs support, the bfd/ elf module
# cannot provide certain routines such as elfcore_write_prpsinfo
# or elfcore_write_prstatus. So unless the user explicitly requested
# large-file support through the --enable-largefile switch, disable
# large-file support in favor of procfs support.
test "${target}" = "${host}" -a "x$plugins" = xno \
&& : ${enable_largefile="no"}
;;
esac
AC_SYS_LARGEFILE
])