1 # Configure template for GNU tar. -*- autoconf -*-
3 # Copyright 1991, 1994-2010, 2013-2019 Free Software Foundation, Inc.
5 # This file is part of GNU tar.
7 # GNU tar is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # GNU tar is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 AC_INIT([GNU tar], [1.31.90], [bug-tar@gnu.org])
21 AC_CONFIG_SRCDIR([src/tar.c])
22 AC_CONFIG_AUX_DIR([build-aux])
23 AC_CONFIG_HEADERS([config.h])
25 AM_INIT_AUTOMAKE([1.11 gnits tar-ustar dist-bzip2 dist-xz std-options silent-rules])
27 # Enable silent rules by default:
28 AM_SILENT_RULES([yes])
35 AC_CHECK_TOOLS([AR], [ar])
40 AC_CHECK_HEADERS_ONCE(fcntl.h linux/fd.h memory.h net/errno.h \
42 sys/param.h sys/device.h sys/gentape.h \
43 sys/inet.h sys/io/trioctl.h \
44 sys/mtio.h sys/time.h sys/tprintf.h sys/tape.h \
47 AC_CHECK_HEADERS([sys/buf.h], [], [],
49 #include <sys/param.h>
54 AC_MSG_CHECKING([for st_fstype string in struct stat])
55 AC_CACHE_VAL(diff_cv_st_fstype_string,
56 [AC_TRY_COMPILE([#include <sys/types.h>
57 #include <sys/stat.h>], [struct stat s; s.st_fstype[0] = 'x';],
58 diff_cv_st_fstype_string=yes,
59 diff_cv_st_fstype_string=no)])
60 AC_MSG_RESULT($diff_cv_st_fstype_string)
61 if test $diff_cv_st_fstype_string = yes; then
62 AC_DEFINE(HAVE_ST_FSTYPE_STRING, 1,
63 [Define if struct stat has a char st_fstype[] member.])
66 # even if we use gnulib's acl.h with integrated m4 file later on (used because
67 # of very useful file_has_acl() function) we need following checks that restrict
68 # tar to use POSIX.1e ACLs only.
69 AC_ARG_WITH([posix-acls],
70 AS_HELP_STRING([--without-posix-acls],
71 [do not use POSIX.1e access control lists]),
73 [with_posix_acls=yes])
74 if test "x$with_posix_acls" != "xno"; then
75 AC_CHECK_HEADERS(sys/acl.h,, [with_posix_acls=no])
76 for tar_acl_func in acl_get_file acl_get_fd acl_set_file acl_set_fd \
77 acl_to_text acl_from_text acl_delete_def_file \
79 test "x$with_posix_acls" = xno && break
80 AC_SEARCH_LIBS([$tar_acl_func], [acl pacl], [], [with_posix_acls=no])
82 if test "x$with_posix_acls" != xno; then
83 AC_DEFINE(HAVE_POSIX_ACLS,,[Define when we have working POSIX acls])
86 # disable acls in gnulib's checks
94 AC_CHECK_TYPE(major_t, , AC_DEFINE(major_t, int,
95 [Type of major device numbers.]))
96 AC_CHECK_TYPE(minor_t, , AC_DEFINE(minor_t, int,
97 [Type of minor device numbers.]))
98 AC_CHECK_TYPE(dev_t, unsigned)
99 AC_CHECK_TYPE(ino_t, unsigned)
106 if test $ac_cv_lib_error_at_line = no; then
107 # This means that the error() function is not present in libc, so
108 # the one from gnulib will be used instead. This function precedes
109 # error messages it prints with the program name as returned by getprogname()
110 # call, instead of using the name set by set_program_name.
111 # Install workaround.
112 AC_DEFINE([ENABLE_ERROR_PRINT_PROGNAME],[1],
113 [Enable the use of error_print_progname to print program name with error messages.
114 See comment to function tar_print_progname in src/tar.c])
120 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
121 # ------------------------------------------------
122 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
123 # Otherwise, run RUN-IF-NOT-FOUND.
124 AC_DEFUN([gl_GCC_VERSION_IFELSE],
128 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
131 # error "your version of gcc is older than $1.$2"
138 AC_ARG_ENABLE([gcc-warnings],
139 [AS_HELP_STRING([--enable-gcc-warnings],
140 [turn on many GCC warnings (for developers; best with GNU make)])],
143 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
145 gl_gcc_warnings=$enableval],
147 if test -d "$srcdir"/.git; then
148 gl_GCC_VERSION_IFELSE([4], [6], [gl_gcc_warnings=yes])
152 if test "$gl_gcc_warnings" = yes; then
153 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
154 AC_SUBST([WERROR_CFLAGS])
157 # This, $nw, is the list of warnings we disable.
158 nw="$nw -Wformat-nonliteral" # warnings in Fedora 17 stdio.h
159 nw="$nw -Wvla" # warnings in gettext.h
160 nw="$nw -Wswitch-default" # Too many warnings for now
161 nw="$nw -Wunsafe-loop-optimizations" # It's OK to omit unsafe optimizations.
162 nw="$nw -Winline" # It's OK to not inline.
163 nw="$nw -Wstrict-overflow" # It's OK to optimize strictly.
164 nw="$nw -Wsuggest-attribute=pure" # Too many warnings for now.
165 nw="$nw -Wstack-protector"
167 gl_MANYWARN_ALL_GCC([ws])
168 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
172 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
173 gl_WARN_ADD([-Wno-type-limits]) # It's OK to optimize based on types.
174 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
175 gl_WARN_ADD([-Wno-format-nonliteral])
177 gl_WARN_ADD([-fdiagnostics-show-option])
178 gl_WARN_ADD([-funit-at-a-time])
181 AC_SUBST([WARN_CFLAGS])
183 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
184 AH_VERBATIM([FORTIFY_SOURCE],
185 [/* Enable compile-time and run-time bounds-checking, and some warnings,
186 without upsetting glibc 2.15+. */
187 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
188 # define _FORTIFY_SOURCE 2
191 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
193 # Use a slightly smaller set of warning options for lib/.
194 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
196 nw="$nw -Wmissing-prototypes"
197 nw="$nw -Wunused-macros"
199 # These are for argp.
200 nw="$nw -Wmissing-field-initializers"
203 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
205 # This is also for argp.
206 gl_WARN_ADD([-Wno-missing-field-initializers], [GNULIB_WARN_CFLAGS])
208 AC_SUBST([GNULIB_WARN_CFLAGS])
210 # For gnulib-tests, the set is slightly smaller still.
212 # It's not worth being this picky about test programs.
213 nw="$nw -Wsuggest-attribute=const"
214 gl_MANYWARN_COMPLEMENT([GNULIB_TEST_WARN_CFLAGS],
215 [$GNULIB_WARN_CFLAGS], [$nw])
216 AC_SUBST([GNULIB_TEST_WARN_CFLAGS])
219 TAR_HEADERS_ATTR_XATTR_H
221 AC_CHECK_FUNCS_ONCE([fchmod fchown fsync lstat mkfifo readlink symlink])
223 AC_CHECK_DECLS([getgrgid],,, [#include <grp.h>])
224 AC_CHECK_DECLS([getpwuid],,, [#include <pwd.h>])
225 AC_CHECK_DECLS([time],,, [#include <time.h>])
227 AC_REPLACE_FUNCS(waitpid)
229 AC_ARG_VAR([RSH], [Configure absolute path to default remote shell binary])
230 AC_CACHE_CHECK(for remote shell, tar_cv_path_RSH,
231 [if test -n "$RSH"; then
235 for ac_file in /usr/ucb/rsh /usr/bin/remsh /usr/bin/rsh /usr/bsd/rsh \
236 /usr/bin/nsh /usr/bin/rcmd
238 # Prefer a non-symlink rsh to a symlink one, so that binaries built
239 # on AIX 4.1.4, where /usr/ucb/rsh is a symlink to /usr/bin/rsh
240 # will run on AIX 4.3.0, which has only /usr/bin/rsh.
241 if test -f $ac_file; then
242 if (test -h $ac_file) 2>/dev/null; then
243 test $tar_cv_path_RSH = no && tar_cv_path_RSH=$ac_file
245 tar_cv_path_RSH=$ac_file
251 if test $tar_cv_path_RSH = no; then
252 AC_CHECK_HEADERS(netdb.h)
254 AC_DEFINE_UNQUOTED(REMOTE_SHELL, "$tar_cv_path_RSH",
255 [Define to the full path of your rsh, if any.])
258 TAR_COMPR_PROGRAM(compress)
259 TAR_COMPR_PROGRAM(gzip)
260 TAR_COMPR_PROGRAM(bzip2)
261 TAR_COMPR_PROGRAM(lzip)
262 TAR_COMPR_PROGRAM(lzma)
263 TAR_COMPR_PROGRAM(lzop)
264 TAR_COMPR_PROGRAM(xz)
265 TAR_COMPR_PROGRAM(zstd)
267 AC_MSG_CHECKING(for default archive format)
269 AC_ARG_VAR([DEFAULT_ARCHIVE_FORMAT],
270 [Set the default archive format. Allowed values are: V7, OLDGNU, USTAR, POSIX, GNU. Default is GNU])
272 if test -z "$DEFAULT_ARCHIVE_FORMAT"; then
273 DEFAULT_ARCHIVE_FORMAT="GNU"
275 case $DEFAULT_ARCHIVE_FORMAT in
276 V7|OLDGNU|USTAR|POSIX|GNU) ;;
277 *) AC_MSG_ERROR(Invalid format name);;
279 AC_DEFINE_UNQUOTED(DEFAULT_ARCHIVE_FORMAT, ${DEFAULT_ARCHIVE_FORMAT}_FORMAT,
280 [By default produce archives of this format])
281 AC_MSG_RESULT($DEFAULT_ARCHIVE_FORMAT)
283 AC_MSG_CHECKING(for default archive)
285 AC_ARG_VAR([DEFAULT_ARCHIVE],
286 [Set the name of the default archive (default: -)])
287 if test -z "$DEFAULT_ARCHIVE"; then
290 if test -z "`ls $DEFAULT_ARCHIVE 2>/dev/null`"; then
291 AC_MSG_WARN(DEFAULT_ARCHIVE '$DEFAULT_ARCHIVE' not found on this system)
293 # FIXME: Look for DEFTAPE in <sys/mtio.h>.
294 # FIXME: Let DEVICE_PREFIX be configured from the environment.
295 # FIXME: Rearrange, here.
296 case $DEFAULT_ARCHIVE in
298 AC_DEFINE(DENSITY_LETTER, 1,
299 [Define to 1 if density may be indicated by [lmh] at end of device.])
300 device_prefix=`echo $DEFAULT_ARCHIVE | sed 's/[0-7][lmh]$//'`
303 device_prefix=`echo $DEFAULT_ARCHIVE | sed 's/[0-7]$//'`
309 case "$device_prefix" in
311 AC_DEFINE_UNQUOTED(DEVICE_PREFIX, "$device_prefix",
312 [Define to a string giving the prefix of the default device, without the part specifying the unit and density.])
316 AC_DEFINE_UNQUOTED(DEFAULT_ARCHIVE, "$DEFAULT_ARCHIVE",
317 [Define to a string giving the full name of the default archive file.])
318 AC_MSG_RESULT($DEFAULT_ARCHIVE)
320 AC_ARG_VAR([DEFAULT_BLOCKING],
321 [Define default blocking factor (default: 20)])
322 AC_MSG_CHECKING(for default blocking)
323 DEFAULT_BLOCKING=${DEFAULT_BLOCKING-20}
324 AC_DEFINE_UNQUOTED(DEFAULT_BLOCKING, $DEFAULT_BLOCKING,
325 [Define to a number giving the default blocking size for archives.])
326 AC_MSG_RESULT($DEFAULT_BLOCKING)
328 AC_MSG_CHECKING(for default quoting style)
330 m4_define([QUOTING_STYLES],dnl
331 [literal|shell|shell-always|c|escape|locale|clocale])
332 DEFAULT_QUOTING_STYLE="escape"
333 AC_ARG_VAR([DEFAULT_QUOTING_STYLE],
334 [Set the default quoting style. Allowed values are: ] m4_bpatsubst(QUOTING_STYLES,[|], [[, ]]) [. Default is "escape".])
336 case $DEFAULT_QUOTING_STYLE in
338 *) AC_MSG_ERROR(Invalid quoting style);;
340 AC_MSG_RESULT($DEFAULT_QUOTING_STYLE)
341 DEFAULT_QUOTING_STYLE=`echo ${DEFAULT_QUOTING_STYLE}|sed 's/-/_/g'`_quoting_style
342 AC_DEFINE_UNQUOTED(DEFAULT_QUOTING_STYLE, $DEFAULT_QUOTING_STYLE,
343 [Define to a default quoting style (see lib/quoteargs.c for the list)])
347 AC_CHECK_HEADERS(iconv.h)
348 AC_CHECK_TYPE(iconv_t,:,
349 AC_DEFINE(iconv_t, int,
350 [Conversion descriptor type]),
358 AM_GNU_GETTEXT([external], [need-formatstring-macros])
359 AM_GNU_GETTEXT_VERSION([0.16])
361 # Initialize the test suite.
362 AC_CONFIG_TESTDIR(tests)
363 AC_CONFIG_FILES([tests/Makefile tests/atlocal]) # FIXME: tests/preset?
364 AM_MISSING_PROG([AUTOM4TE], [autom4te])
366 AC_SUBST(BACKUP_LIBEXEC_SCRIPTS)
367 AC_SUBST(BACKUP_SBIN_SCRIPTS)
368 AC_ARG_ENABLE(backup-scripts,
369 AC_HELP_STRING([--enable-backup-scripts],
370 [Create and install backup and restore scripts]),
372 yes) BACKUP_LIBEXEC_SCRIPTS='$(BACKUP_LIBEXEC_SCRIPTS_LIST)'
373 BACKUP_SBIN_SCRIPTS='$(BACKUP_SBIN_SCRIPTS_LIST)'
377 AC_SUBST(BACKUP_SED_COND)
378 if date +%Y-%m-%d 2>/dev/null >&2; then
379 BACKUP_SED_COND='/^\#ELSE_DATE_FORMAT_OK/,/^\#ENDIF_DATE_FORMAT_OK/d;/^\#IF_DATE_FORMAT_OK/d'
381 BACKUP_SED_COND='/^\#IF_DATE_FORMAT_OK/,/^\#ELSE_DATE_FORMAT_OK/d;/^\#ENDIF_DATE_FORMAT_OK/d'