# Configure template for GNU tar. -*- autoconf -*-
-# Copyright (C) 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free
-# Software Foundation, Inc.
+# Copyright 1991, 1994-2010, 2013-2015 Free Software Foundation, Inc.
-# This program is free software; you can redistribute it and/or modify
+# This file is part of GNU tar.
+
+# GNU tar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
-# This program is distributed in the hope that it will be useful,
+# GNU tar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
-AC_INIT([GNU tar], [1.26.90], [bug-tar@gnu.org])
+AC_INIT([GNU tar], [1.28.90], [bug-tar@gnu.org])
AC_CONFIG_SRCDIR([src/tar.c])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([config.h])
AC_PREREQ([2.63])
-AM_INIT_AUTOMAKE([1.11 gnits tar-ustar dist-bzip2 dist-xz dist-shar std-options silent-rules])
+AM_INIT_AUTOMAKE([1.11 gnits tar-ustar dist-bzip2 dist-xz std-options silent-rules])
# Enable silent rules by default:
AM_SILENT_RULES([yes])
-AC_PROG_CC
+AC_PROG_CC_STDC
AC_EXEEXT
AC_PROG_RANLIB
AC_PROG_YACC
gl_EARLY
+AC_CHECK_TOOLS([AR], [ar])
AC_SYS_LARGEFILE
-AC_ISC_POSIX
AC_C_INLINE
AC_CHECK_HEADERS_ONCE(fcntl.h linux/fd.h memory.h net/errno.h \
#include <sys/param.h>
#endif])
-AC_HEADER_SYS_WAIT
-
-AC_HEADER_DIRENT
AC_HEADER_MAJOR
-AC_HEADER_STAT
-AC_HEADER_STDC
AC_MSG_CHECKING([for st_fstype string in struct stat])
AC_CACHE_VAL(diff_cv_st_fstype_string,
[Define if struct stat has a char st_fstype[] member.])
fi
-AC_TYPE_SIGNAL
+# even if we use gnulib's acl.h with integrated m4 file later on (used because
+# of very useful file_has_acl() function) we need following checks that restrict
+# tar to use POSIX.1e ACLs only.
+AC_ARG_WITH([posix-acls],
+ AS_HELP_STRING([--without-posix-acls],
+ [do not use POSIX.1e access control lists]),
+ [],
+ [with_posix_acls=yes])
+if test "x$with_posix_acls" != "xno"; then
+ AC_CHECK_HEADERS(sys/acl.h,, [with_posix_acls=no])
+ for tar_acl_func in acl_get_file acl_get_fd acl_set_file acl_set_fd \
+ acl_to_text acl_from_text acl_delete_def_file \
+ acl_free; do \
+ test "x$with_posix_acls" = xno && break
+ AC_SEARCH_LIBS([$tar_acl_func], [acl pacl], [], [with_posix_acls=no])
+ done
+ if test "x$with_posix_acls" != xno; then
+ AC_DEFINE(HAVE_POSIX_ACLS,,[Define when we have working POSIX acls])
+ fi
+else
+ # disable acls in gnulib's checks
+ export enable_acl=no
+fi
+
AC_TYPE_MODE_T
AC_TYPE_PID_T
AC_TYPE_OFF_T
-AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_CHECK_TYPE(major_t, , AC_DEFINE(major_t, int,
[Type of major device numbers.]))
# paxutils modules
tar_PAXUTILS
-AC_CHECK_FUNCS_ONCE([fchmod fchown fsync lstat mkfifo readlink symlink])
+# gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
+# ------------------------------------------------
+# If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
+# Otherwise, run RUN-IF-NOT-FOUND.
+AC_DEFUN([gl_GCC_VERSION_IFELSE],
+ [AC_PREPROC_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[
+#if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
+/* ok */
+#else
+# error "your version of gcc is older than $1.$2"
+#endif
+ ]]),
+ ], [$3], [$4])
+ ]
+)
+
+AC_ARG_ENABLE([gcc-warnings],
+ [AS_HELP_STRING([--enable-gcc-warnings],
+ [turn on many GCC warnings (for developers; best with GNU make)])],
+ [case $enableval in
+ yes|no) ;;
+ *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
+ esac
+ gl_gcc_warnings=$enableval],
+ [gl_gcc_warnings=no
+ if test -d "$srcdir"/.git; then
+ gl_GCC_VERSION_IFELSE([4], [6], [gl_gcc_warnings=yes])
+ fi]
+)
+
+if test "$gl_gcc_warnings" = yes; then
+ gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
+ AC_SUBST([WERROR_CFLAGS])
+
+ nw=
+ # This, $nw, is the list of warnings we disable.
+ nw="$nw -Wformat-nonliteral" # warnings in Fedora 17 stdio.h
+ nw="$nw -Wvla" # warnings in gettext.h
+ nw="$nw -Wswitch-default" # Too many warnings for now
+ nw="$nw -Wunsafe-loop-optimizations" # It's OK to omit unsafe optimizations.
+ nw="$nw -Winline" # It's OK to not inline.
+ nw="$nw -Wstrict-overflow" # It's OK to optimize strictly.
+ nw="$nw -Wsuggest-attribute=pure" # Too many warnings for now.
+
+ gl_MANYWARN_ALL_GCC([ws])
+ gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
+ for w in $ws; do
+ gl_WARN_ADD([$w])
+ done
+ gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
+ gl_WARN_ADD([-Wno-type-limits]) # It's OK to optimize based on types.
+ gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
+ gl_WARN_ADD([-Wno-format-nonliteral])
+
+ gl_WARN_ADD([-fdiagnostics-show-option])
+ gl_WARN_ADD([-funit-at-a-time])
+
+ AC_SUBST([WARN_CFLAGS])
+
+ AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
+ AH_VERBATIM([FORTIFY_SOURCE],
+ [/* Enable compile-time and run-time bounds-checking, and some warnings,
+ without upsetting glibc 2.15+. */
+ #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
+ # define _FORTIFY_SOURCE 2
+ #endif
+ ])
+ AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
+
+ # Use a slightly smaller set of warning options for lib/.
+ # Remove the following and save the result in GNULIB_WARN_CFLAGS.
+ nw=
+ nw="$nw -Wmissing-prototypes"
+ nw="$nw -Wunused-macros"
+ #
+ # These are for argp.
+ nw="$nw -Wmissing-field-initializers"
+ nw="$nw -Wshadow"
+ #
+ gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
+
+ # This is also for argp.
+ gl_WARN_ADD([-Wno-missing-field-initializers], [GNULIB_WARN_CFLAGS])
+
+ AC_SUBST([GNULIB_WARN_CFLAGS])
+
+ # For gnulib-tests, the set is slightly smaller still.
+ nw=
+ # It's not worth being this picky about test programs.
+ nw="$nw -Wsuggest-attribute=const"
+ gl_MANYWARN_COMPLEMENT([GNULIB_TEST_WARN_CFLAGS],
+ [$GNULIB_WARN_CFLAGS], [$nw])
+ AC_SUBST([GNULIB_TEST_WARN_CFLAGS])
+fi
+
+TAR_HEADERS_ATTR_XATTR_H
+
+AC_CHECK_FUNCS_ONCE([fchmod fchown fsync lstat mkfifo readlink symlink grantpt])
+AM_CONDITIONAL([TAR_COND_GRANTPT], [test $ac_cv_func_grantpt = yes])
+
AC_CHECK_DECLS([getgrgid],,, [#include <grp.h>])
AC_CHECK_DECLS([getpwuid],,, [#include <pwd.h>])
AC_CHECK_DECLS([time],,, [#include <time.h>])
AC_REPLACE_FUNCS(waitpid)
+AC_ARG_VAR([RSH], [Configure absolute path to default remote shell binary])
AC_CACHE_CHECK(for remote shell, tar_cv_path_RSH,
[if test -n "$RSH"; then
tar_cv_path_RSH=$RSH
projects / chaz / tar / blobdiff