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1 # Configure template for GNU tar. -*- autoconf -*-
2
3 # Copyright 1991, 1994-2010, 2013-2017 Free Software Foundation, Inc.
4
5 # This file is part of GNU tar.
6
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.
11
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.
16
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/>.
19
20 AC_INIT([GNU tar], [1.29.90], [bug-tar@gnu.org])
21 AC_CONFIG_SRCDIR([src/tar.c])
22 AC_CONFIG_AUX_DIR([build-aux])
23 AC_CONFIG_HEADERS([config.h])
24 AC_PREREQ([2.63])
25 AM_INIT_AUTOMAKE([1.11 gnits tar-ustar dist-bzip2 dist-xz std-options silent-rules])
26
27 # Enable silent rules by default:
28 AM_SILENT_RULES([yes])
29
30 AC_PROG_CC_STDC
31 AC_EXEEXT
32 AC_PROG_RANLIB
33 AC_PROG_YACC
34 gl_EARLY
35 AC_CHECK_TOOLS([AR], [ar])
36
37 AC_SYS_LARGEFILE
38 AC_C_INLINE
39
40 AC_CHECK_HEADERS_ONCE(fcntl.h linux/fd.h memory.h net/errno.h \
41 sgtty.h string.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 \
45 unistd.h locale.h)
46
47 AC_CHECK_HEADERS([sys/buf.h], [], [],
48 [#if HAVE_SYS_PARAM_H
49 #include <sys/param.h>
50 #endif])
51
52 AC_HEADER_MAJOR
53
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 $diff_cv_st_fstype_string = yes; then
62 AC_DEFINE(HAVE_ST_FSTYPE_STRING, 1,
63 [Define if struct stat has a char st_fstype[] member.])
64 fi
65
66 # even if we use gnulib's acl.h with integrated m4 file later on (used because
67 # of very useful file_has_acl() function) we need following checks that restrict
68 # tar to use POSIX.1e ACLs only.
69 AC_ARG_WITH([posix-acls],
70 AS_HELP_STRING([--without-posix-acls],
71 [do not use POSIX.1e access control lists]),
72 [],
73 [with_posix_acls=yes])
74 if test "x$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 \
78 acl_free; do \
79 test "x$with_posix_acls" = xno && break
80 AC_SEARCH_LIBS([$tar_acl_func], [acl pacl], [], [with_posix_acls=no])
81 done
82 if test "x$with_posix_acls" != xno; then
83 AC_DEFINE(HAVE_POSIX_ACLS,,[Define when we have working POSIX acls])
84 fi
85 else
86 # disable acls in gnulib's checks
87 export enable_acl=no
88 fi
89
90 AC_TYPE_MODE_T
91 AC_TYPE_PID_T
92 AC_TYPE_OFF_T
93 AC_TYPE_UID_T
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)
100
101 gt_TYPE_SSIZE_T
102
103 # gnulib modules
104 gl_INIT
105 # paxutils modules
106 tar_PAXUTILS
107
108 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
109 # ------------------------------------------------
110 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
111 # Otherwise, run RUN-IF-NOT-FOUND.
112 AC_DEFUN([gl_GCC_VERSION_IFELSE],
113 [AC_PREPROC_IFELSE(
114 [AC_LANG_PROGRAM(
115 [[
116 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
117 /* ok */
118 #else
119 # error "your version of gcc is older than $1.$2"
120 #endif
121 ]]),
122 ], [$3], [$4])
123 ]
124 )
125
126 AC_ARG_ENABLE([gcc-warnings],
127 [AS_HELP_STRING([--enable-gcc-warnings],
128 [turn on many GCC warnings (for developers; best with GNU make)])],
129 [case $enableval in
130 yes|no) ;;
131 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
132 esac
133 gl_gcc_warnings=$enableval],
134 [gl_gcc_warnings=no
135 if test -d "$srcdir"/.git; then
136 gl_GCC_VERSION_IFELSE([4], [6], [gl_gcc_warnings=yes])
137 fi]
138 )
139
140 if test "$gl_gcc_warnings" = yes; then
141 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
142 AC_SUBST([WERROR_CFLAGS])
143
144 nw=
145 # This, $nw, is the list of warnings we disable.
146 nw="$nw -Wformat-nonliteral" # warnings in Fedora 17 stdio.h
147 nw="$nw -Wvla" # warnings in gettext.h
148 nw="$nw -Wswitch-default" # Too many warnings for now
149 nw="$nw -Wunsafe-loop-optimizations" # It's OK to omit unsafe optimizations.
150 nw="$nw -Winline" # It's OK to not inline.
151 nw="$nw -Wstrict-overflow" # It's OK to optimize strictly.
152 nw="$nw -Wsuggest-attribute=pure" # Too many warnings for now.
153 nw="$nw -Wstack-protector"
154
155 gl_MANYWARN_ALL_GCC([ws])
156 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
157 for w in $ws; do
158 gl_WARN_ADD([$w])
159 done
160 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
161 gl_WARN_ADD([-Wno-type-limits]) # It's OK to optimize based on types.
162 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
163 gl_WARN_ADD([-Wno-format-nonliteral])
164
165 gl_WARN_ADD([-fdiagnostics-show-option])
166 gl_WARN_ADD([-funit-at-a-time])
167
168
169 AC_SUBST([WARN_CFLAGS])
170
171 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
172 AH_VERBATIM([FORTIFY_SOURCE],
173 [/* Enable compile-time and run-time bounds-checking, and some warnings,
174 without upsetting glibc 2.15+. */
175 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
176 # define _FORTIFY_SOURCE 2
177 #endif
178 ])
179 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
180
181 # Use a slightly smaller set of warning options for lib/.
182 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
183 nw=
184 nw="$nw -Wmissing-prototypes"
185 nw="$nw -Wunused-macros"
186 #
187 # These are for argp.
188 nw="$nw -Wmissing-field-initializers"
189 nw="$nw -Wshadow"
190 #
191 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
192
193 # This is also for argp.
194 gl_WARN_ADD([-Wno-missing-field-initializers], [GNULIB_WARN_CFLAGS])
195
196 AC_SUBST([GNULIB_WARN_CFLAGS])
197
198 # For gnulib-tests, the set is slightly smaller still.
199 nw=
200 # It's not worth being this picky about test programs.
201 nw="$nw -Wsuggest-attribute=const"
202 gl_MANYWARN_COMPLEMENT([GNULIB_TEST_WARN_CFLAGS],
203 [$GNULIB_WARN_CFLAGS], [$nw])
204 AC_SUBST([GNULIB_TEST_WARN_CFLAGS])
205 fi
206
207 TAR_HEADERS_ATTR_XATTR_H
208
209 AC_CHECK_FUNCS_ONCE([fchmod fchown fsync lstat mkfifo readlink symlink])
210
211 AC_CHECK_DECLS([getgrgid],,, [#include <grp.h>])
212 AC_CHECK_DECLS([getpwuid],,, [#include <pwd.h>])
213 AC_CHECK_DECLS([time],,, [#include <time.h>])
214
215 AC_REPLACE_FUNCS(waitpid)
216
217 AC_ARG_VAR([RSH], [Configure absolute path to default remote shell binary])
218 AC_CACHE_CHECK(for remote shell, tar_cv_path_RSH,
219 [if test -n "$RSH"; then
220 tar_cv_path_RSH=$RSH
221 else
222 tar_cv_path_RSH=no
223 for ac_file in /usr/ucb/rsh /usr/bin/remsh /usr/bin/rsh /usr/bsd/rsh \
224 /usr/bin/nsh /usr/bin/rcmd
225 do
226 # Prefer a non-symlink rsh to a symlink one, so that binaries built
227 # on AIX 4.1.4, where /usr/ucb/rsh is a symlink to /usr/bin/rsh
228 # will run on AIX 4.3.0, which has only /usr/bin/rsh.
229 if test -f $ac_file; then
230 if (test -h $ac_file) 2>/dev/null; then
231 test $tar_cv_path_RSH = no && tar_cv_path_RSH=$ac_file
232 else
233 tar_cv_path_RSH=$ac_file
234 break
235 fi
236 fi
237 done
238 fi])
239 if test $tar_cv_path_RSH = no; then
240 AC_CHECK_HEADERS(netdb.h)
241 else
242 AC_DEFINE_UNQUOTED(REMOTE_SHELL, "$tar_cv_path_RSH",
243 [Define to the full path of your rsh, if any.])
244 fi
245
246 TAR_COMPR_PROGRAM(compress)
247 TAR_COMPR_PROGRAM(gzip)
248 TAR_COMPR_PROGRAM(bzip2)
249 TAR_COMPR_PROGRAM(lzip)
250 TAR_COMPR_PROGRAM(lzma)
251 TAR_COMPR_PROGRAM(lzop)
252 TAR_COMPR_PROGRAM(xz)
253
254 AC_MSG_CHECKING(for default archive format)
255
256 AC_ARG_VAR([DEFAULT_ARCHIVE_FORMAT],
257 [Set the default archive format. Allowed values are: V7, OLDGNU, USTAR, POSIX, GNU. Default is GNU])
258
259 if test -z "$DEFAULT_ARCHIVE_FORMAT"; then
260 DEFAULT_ARCHIVE_FORMAT="GNU"
261 fi
262 case $DEFAULT_ARCHIVE_FORMAT in
263 V7|OLDGNU|USTAR|POSIX|GNU) ;;
264 *) AC_MSG_ERROR(Invalid format name);;
265 esac
266 AC_DEFINE_UNQUOTED(DEFAULT_ARCHIVE_FORMAT, ${DEFAULT_ARCHIVE_FORMAT}_FORMAT,
267 [By default produce archives of this format])
268 AC_MSG_RESULT($DEFAULT_ARCHIVE_FORMAT)
269
270 AC_MSG_CHECKING(for default archive)
271
272 AC_ARG_VAR([DEFAULT_ARCHIVE],
273 [Set the name of the default archive (default: -)])
274 if test -z "$DEFAULT_ARCHIVE"; then
275 DEFAULT_ARCHIVE=-
276 else
277 if test -z "`ls $DEFAULT_ARCHIVE 2>/dev/null`"; then
278 AC_MSG_WARN(DEFAULT_ARCHIVE '$DEFAULT_ARCHIVE' not found on this system)
279 fi
280 # FIXME: Look for DEFTAPE in <sys/mtio.h>.
281 # FIXME: Let DEVICE_PREFIX be configured from the environment.
282 # FIXME: Rearrange, here.
283 case $DEFAULT_ARCHIVE in
284 *[[0-7][lmh]])
285 AC_DEFINE(DENSITY_LETTER, 1,
286 [Define to 1 if density may be indicated by [lmh] at end of device.])
287 device_prefix=`echo $DEFAULT_ARCHIVE | sed 's/[0-7][lmh]$//'`
288 ;;
289 *[[0-7]])
290 device_prefix=`echo $DEFAULT_ARCHIVE | sed 's/[0-7]$//'`
291 ;;
292 *)
293 device_prefix=
294 ;;
295 esac
296 case "$device_prefix" in
297 ?*)
298 AC_DEFINE_UNQUOTED(DEVICE_PREFIX, "$device_prefix",
299 [Define to a string giving the prefix of the default device, without the part specifying the unit and density.])
300 ;;
301 esac
302 fi
303 AC_DEFINE_UNQUOTED(DEFAULT_ARCHIVE, "$DEFAULT_ARCHIVE",
304 [Define to a string giving the full name of the default archive file.])
305 AC_MSG_RESULT($DEFAULT_ARCHIVE)
306
307 AC_ARG_VAR([DEFAULT_BLOCKING],
308 [Define default blocking factor (default: 20)])
309 AC_MSG_CHECKING(for default blocking)
310 DEFAULT_BLOCKING=${DEFAULT_BLOCKING-20}
311 AC_DEFINE_UNQUOTED(DEFAULT_BLOCKING, $DEFAULT_BLOCKING,
312 [Define to a number giving the default blocking size for archives.])
313 AC_MSG_RESULT($DEFAULT_BLOCKING)
314
315 AC_MSG_CHECKING(for default quoting style)
316
317 m4_define([QUOTING_STYLES],dnl
318 [literal|shell|shell-always|c|escape|locale|clocale])
319 DEFAULT_QUOTING_STYLE="escape"
320 AC_ARG_VAR([DEFAULT_QUOTING_STYLE],
321 [Set the default quoting style. Allowed values are: ] m4_bpatsubst(QUOTING_STYLES,[|], [[, ]]) [. Default is "escape".])
322
323 case $DEFAULT_QUOTING_STYLE in
324 QUOTING_STYLES) ;;
325 *) AC_MSG_ERROR(Invalid quoting style);;
326 esac
327 AC_MSG_RESULT($DEFAULT_QUOTING_STYLE)
328 DEFAULT_QUOTING_STYLE=`echo ${DEFAULT_QUOTING_STYLE}|sed 's/-/_/g'`_quoting_style
329 AC_DEFINE_UNQUOTED(DEFAULT_QUOTING_STYLE, $DEFAULT_QUOTING_STYLE,
330 [Define to a default quoting style (see lib/quoteargs.c for the list)])
331
332 # Iconv
333 AM_ICONV
334 AC_CHECK_HEADERS(iconv.h)
335 AC_CHECK_TYPE(iconv_t,:,
336 AC_DEFINE(iconv_t, int,
337 [Conversion descriptor type]),
338 [
339 #ifdef HAVE_ICONV_H
340 # include <iconv.h>
341 #endif
342 ])
343
344 # Gettext.
345 AM_GNU_GETTEXT([external], [need-formatstring-macros])
346 AM_GNU_GETTEXT_VERSION([0.16])
347
348 # Initialize the test suite.
349 AC_CONFIG_TESTDIR(tests)
350 AC_CONFIG_FILES([tests/Makefile tests/atlocal]) # FIXME: tests/preset?
351 AM_MISSING_PROG([AUTOM4TE], [autom4te])
352
353 AC_SUBST(BACKUP_LIBEXEC_SCRIPTS)
354 AC_SUBST(BACKUP_SBIN_SCRIPTS)
355 AC_ARG_ENABLE(backup-scripts,
356 AC_HELP_STRING([--enable-backup-scripts],
357 [Create and install backup and restore scripts]),
358 [case $enableval in
359 yes) BACKUP_LIBEXEC_SCRIPTS='$(BACKUP_LIBEXEC_SCRIPTS_LIST)'
360 BACKUP_SBIN_SCRIPTS='$(BACKUP_SBIN_SCRIPTS_LIST)'
361 ;;
362 esac])
363
364 AC_SUBST(BACKUP_SED_COND)
365 if date +%Y-%m-%d 2>/dev/null >&2; then
366 BACKUP_SED_COND='/^\#ELSE_DATE_FORMAT_OK/,/^\#ENDIF_DATE_FORMAT_OK/d;/^\#IF_DATE_FORMAT_OK/d'
367 else
368 BACKUP_SED_COND='/^\#IF_DATE_FORMAT_OK/,/^\#ELSE_DATE_FORMAT_OK/d;/^\#ENDIF_DATE_FORMAT_OK/d'
369 fi
370
371 AC_OUTPUT([Makefile\
372 doc/Makefile\
373 gnu/Makefile\
374 lib/Makefile\
375 po/Makefile.in\
376 scripts/Makefile\
377 rmt/Makefile\
378 src/Makefile])