server/crypto.c: Improve error messages in crypto_send
[nbdkit.git] / configure.ac
blobaca5baeb59fabd9797887cbe64f52e7d37d0e84e
1 # nbdkit
2 # Copyright Red Hat
4 # Redistribution and use in source and binary forms, with or without
5 # modification, are permitted provided that the following conditions are
6 # met:
8 # * Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
11 # * Redistributions in binary form must reproduce the above copyright
12 # notice, this list of conditions and the following disclaimer in the
13 # documentation and/or other materials provided with the distribution.
15 # * Neither the name of Red Hat nor the names of its contributors may be
16 # used to endorse or promote products derived from this software without
17 # specific prior written permission.
19 # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
20 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
22 # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
23 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
26 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
27 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
29 # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 # SUCH DAMAGE.
32 m4_define([NBDKIT_VERSION_MAJOR], [1])
33 m4_define([NBDKIT_VERSION_MINOR], [33])
34 m4_define([NBDKIT_VERSION_MICRO], [11])
35 AC_INIT([nbdkit],
36         NBDKIT_VERSION_MAJOR.NBDKIT_VERSION_MINOR.NBDKIT_VERSION_MICRO)
37 AC_CONFIG_MACRO_DIR([m4])
39 dnl This must be used very early else you will get
40 dnl "warning: AC_RUN_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS"
41 m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],[],
42          [m4_define([AC_USE_SYSTEM_EXTENSIONS],[])])
43 AC_USE_SYSTEM_EXTENSIONS
45 dnl NB: Do not [quote] this parameter.
46 AM_INIT_AUTOMAKE(foreign)
47 LT_INIT([win32-dll])
49 dnl Extra string, a freeform string defined by downstream packagers.
50 dnl eg. If you are packaging nbdkit for Linux distro X 1.1, you could
51 dnl   ./configure --with-extra="X release 1.1"
52 AC_ARG_WITH([extra],
53     [AS_HELP_STRING([--with-extra=...],
54                     [extra version information (for use by packagers)])],
55     [NBDKIT_VERSION_EXTRA="$withval"],
56     [NBDKIT_VERSION_EXTRA=]
58 AC_DEFINE_UNQUOTED([NBDKIT_VERSION_EXTRA], ["$NBDKIT_VERSION_EXTRA"],
59                    [Extra version information (for use by packagers)])
61 AC_MSG_NOTICE([nbdkit version NBDKIT_VERSION_MAJOR.NBDKIT_VERSION_MINOR.NBDKIT_VERSION_MICRO ($NBDKIT_VERSION_EXTRA)])
63 dnl List of plugins and filters.
64 lang_plugins="\
65         cc \
66         golang \
67         lua \
68         ocaml \
69         perl \
70         python \
71         ruby \
72         rust \
73         sh \
74         tcl \
75         "
76 non_lang_plugins="\
77         blkio \
78         cdi \
79         curl \
80         data \
81         eval \
82         example1 \
83         example2 \
84         example3 \
85         example4 \
86         file \
87         floppy \
88         full \
89         guestfs \
90         info \
91         iso \
92         libvirt \
93         linuxdisk \
94         memory \
95         nbd \
96         null \
97         ondemand \
98         partitioning \
99         pattern \
100         random \
101         S3 \
102         sparse-random \
103         split \
104         ssh \
105         tmpdisk \
106         torrent \
107         vddk \
108         zero \
109         "
110 plugins="$(echo $(printf %s\\n $lang_plugins $non_lang_plugins | sort -u))"
111 filters="\
112         blocksize \
113         blocksize-policy \
114         cache \
115         cacheextents \
116         checkwrite \
117         cow \
118         ddrescue \
119         delay \
120         error \
121         exitlast \
122         exitwhen \
123         exportname \
124         ext2 \
125         extentlist \
126         fua \
127         gzip \
128         ip \
129         limit \
130         log \
131         luks \
132         multi-conn \
133         nocache \
134         noextents \
135         nofilter \
136         noparallel \
137         nozero \
138         offset \
139         partition \
140         pause \
141         protect \
142         rate \
143         readahead \
144         retry \
145         retry-request \
146         scan \
147         stats \
148         swab \
149         tar \
150         tls-fallback \
151         truncate \
152         xz \
153         "
154 AC_SUBST([plugins])
155 AC_SUBST([lang_plugins])
156 AC_SUBST([non_lang_plugins])
157 AC_SUBST([filters])
159 dnl Some very basic tools.
160 AC_PROG_SED
161 AC_PROG_RANLIB
163 dnl Check for basic C environment.
164 AC_PROG_CC
165 AC_PROG_INSTALL
166 AC_PROG_CPP
167 AC_SYS_LARGEFILE
169 AC_C_PROTOTYPES
170 test "x$U" != "x" && AC_MSG_ERROR([Compiler not ANSI compliant])
172 AM_PROG_CC_C_O
174 dnl Define the host CPU architecture (defines 'host_cpu').
175 AC_CANONICAL_HOST
176 AC_DEFINE_UNQUOTED([host_cpu],["$host_cpu"],[Host architecture.])
178 dnl Define 'host_os'.
179 AC_DEFINE_UNQUOTED([host_os],["$host_os"],[Host operating system.])
181 dnl Defines WORDS_BIGENDIAN on big endian platforms.
182 AC_C_BIGENDIAN
184 dnl These are defined in <unistd.h> which is included by
185 dnl AC_DEFAULT_INCLUDES.
186 AC_CHECK_SIZEOF([pid_t])
187 AC_CHECK_SIZEOF([uid_t])
188 AC_CHECK_SIZEOF([gid_t])
190 dnl Check for C++ (optional, we just use this to test the header
191 dnl can be included from C++ code).
192 AC_PROG_CXX
194 dnl The C++ compiler test is pretty useless because even if it fails
195 dnl it sets CXX=g++.  So test the compiler actually works.
196 AC_MSG_CHECKING([if the C++ compiler really really works])
197 AS_IF([$CXX --version >&AS_MESSAGE_LOG_FD 2>&1],[have_cxx=yes],[have_cxx=no])
198 AC_MSG_RESULT([$have_cxx])
199 AM_CONDITIONAL([HAVE_CXX], [test "$have_cxx" = "yes"])
201 AC_ARG_ENABLE([gcc-warnings],
202     [AS_HELP_STRING([--enable-gcc-warnings],
203                     [turn on lots of GCC warnings (for developers)])],
204      [case $enableval in
205       yes|no) ;;
206       *)      AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
207       esac
208       gcc_warnings=$enableval],
209       [gcc_warnings=no]
211 if test "x$gcc_warnings" = "xyes"; then
212     WARNINGS_CFLAGS="-Wall -Wshadow -Wvla -Werror"
213     AC_SUBST([WARNINGS_CFLAGS])
216 dnl Check if the compiler supports -std=c90 flag.  This is only used
217 dnl during a test.  OpenBSD GCC does not support this flag so we skip
218 dnl that test.
219 AC_MSG_CHECKING([if the compiler supports -std=c90 for ANSI C test])
220 old_CFLAGS="$CFLAGS"
221 CFLAGS="$CFLAGS -std=c90"
222 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
223     [supports_std_c90=yes],
224     [supports_std_c90=no])
225 CFLAGS="$old_CFLAGS"
226 AC_MSG_RESULT([$supports_std_c90])
227 AM_CONDITIONAL([CAN_TEST_ANSI_C], [test "x$supports_std_c90" = "xyes"])
229 dnl Check for __builtin_*_overflow.  We need the dummy parameters
230 dnl else detection doesn't work correctly for some reason.
231 AC_CHECK_DECLS([__builtin_add_overflow(int, int, int *),
232                 __builtin_mul_overflow(int, int, int *)],
233                 [], [], [])
235 dnl On Haiku we must use BSD-compatibility headers to get the endian
236 dnl macros we use.
237 AC_MSG_CHECKING(whether OS-dependent include paths are required)
238 AS_CASE([$host_os],
239   [haiku*], [CFLAGS="$CFLAGS -I`findpaths -p /system B_FIND_PATH_HEADERS_DIRECTORY`/bsd"; AC_MSG_RESULT(yes)],
240   [AC_MSG_RESULT(no)]
243 dnl On Linux /tmp is often tmpfs which is not large enough, so use /var/tmp.
244 dnl But Haiku only has /tmp.
245 AC_MSG_CHECKING([for temporary directory for large files])
246 AS_CASE([$host_os],
247   [haiku*], [LARGE_TMPDIR=/tmp],
248   [LARGE_TMPDIR=/var/tmp]
250 AC_MSG_RESULT([$LARGE_TMPDIR])
251 AC_DEFINE_UNQUOTED([LARGE_TMPDIR],["$LARGE_TMPDIR"],
252                    [Temporary directory for large files])
254 dnl Check if libc has program_invocation_short_name.
255 AC_CHECK_DECLS([program_invocation_short_name], [], [], [#include <errno.h>])
257 AX_PTHREAD
259 dnl Check if __attribute__((cleanup(...))) works.
260 dnl Set -Werror, otherwise gcc will only emit a warning for attributes
261 dnl that it doesn't understand.
262 acx_nbdkit_save_CFLAGS="${CFLAGS}"
263 CFLAGS="${CFLAGS} -Werror"
264 AC_MSG_CHECKING([if __attribute__((cleanup(...))) works with this compiler])
265 AC_COMPILE_IFELSE([
266 AC_LANG_SOURCE([[
267 #include <stdio.h>
268 #include <stdlib.h>
270 void
271 freep (void *ptr)
273   exit (EXIT_SUCCESS);
276 void
277 test (void)
279   __attribute__((cleanup(freep))) char *ptr = malloc (100);
280   (void)ptr;
284 main (int argc, char *argv[])
286   test ();
287   exit (EXIT_FAILURE);
290     ],[
291     AC_MSG_RESULT([yes])
292     ],[
293     AC_MSG_RESULT([no])
294     AC_MSG_ERROR(
295 ['__attribute__((cleanup(...)))' does not work.
297 You may not be using a sufficiently recent version of GCC or CLANG, or
298 you may be using a C compiler which does not support this attribute,
299 or the configure test may be wrong.
301 This code requires the attribute to work for proper locking between threads.])])
302 CFLAGS="${acx_nbdkit_save_CFLAGS}"
304 dnl Check for __auto_type (GCC extension).
305 AC_MSG_CHECKING([if __auto_type is available in this compiler])
306 AC_COMPILE_IFELSE([
307 AC_LANG_SOURCE([[
308 static int
309 test (int a)
311   __auto_type at = a;
312   return at;
315     ],[
316     AC_MSG_RESULT([yes])
317     AC_DEFINE([HAVE_AUTO_TYPE],[1],[__auto_type is available])
318     ],[
319     AC_MSG_RESULT([no])
320     ]
323 dnl 'environ' is not always declared in public header files:
324 dnl Linux => <unistd.h>  Haiku => <stdlib.h>
325 dnl FreeBSD & OpenBSD => not declared
326 dnl On platforms where it's not declared we must add an extern decl.
327 AC_MSG_CHECKING([if environ is declared in header files])
328 AC_COMPILE_IFELSE([
329 AC_LANG_SOURCE([[
330 #include <stdlib.h>
331 #include <unistd.h>
332 static int
333 test (void)
335   const char **env = environ;
336   return env ? 1 : 0; // this just forces env to be used
339     ],[
340     AC_MSG_RESULT([yes])
341     AC_DEFINE([HAVE_ENVIRON_DECL],[1],[environ is declared in headers])
342     ],[
343     AC_MSG_RESULT([no])
344     ]
347 dnl Check sizeof long.
348 AC_CHECK_SIZEOF(long)
350 dnl Check for other headers, all optional.
351 AC_CHECK_HEADERS([\
352         alloca.h \
353         afunix.h \
354         arpa/inet.h \
355         byteswap.h \
356         endian.h \
357         grp.h \
358         linux/fs.h \
359         netdb.h \
360         netinet/in.h \
361         netinet/tcp.h \
362         pwd.h \
363         termios.h \
364         stdatomic.h \
365         syslog.h \
366         sys/endian.h \
367         sys/ioctl.h \
368         sys/mman.h \
369         sys/prctl.h \
370         sys/procctl.h \
371         sys/socket.h \
372         sys/statvfs.h \
373         sys/ucred.h \
374         sys/un.h \
375         sys/vsock.h \
376         sys/wait.h \
377         winsock2.h])
379 AC_CHECK_HEADERS([linux/vm_sockets.h], [], [], [#include <sys/socket.h>])
381 dnl Check for functions in libc, all optional.
382 AC_CHECK_FUNCS([\
383         accept4 \
384         fdatasync \
385         flockfile \
386         funlockfile \
387         inet_ntop \
388         inet_pton \
389         mkostemp \
390         mlock \
391         mlockall \
392         munlock \
393         open_memstream \
394         pipe \
395         pipe2 \
396         ppoll \
397         posix_fadvise \
398         posix_memalign \
399         valloc])
401 dnl Check for structs and members.
402 AC_CHECK_MEMBERS([struct dirent.d_type], [], [], [[#include <dirent.h>]])
403 AC_CHECK_MEMBERS([struct ucred.uid], [], [],
404                  [[
405 #ifdef HAVE_SYS_SOCKET_H
406 #include <sys/socket.h>
407 #endif
408 #ifdef HAVE_SYS_UCRED_H
409 #include <sys/ucred.h>
410 #endif
412 AC_CHECK_MEMBERS([struct sockpeercred.uid], [], [],
413                  [[
414 #ifdef HAVE_SYS_SOCKET_H
415 #include <sys/socket.h>
416 #endif
419 dnl Replacement functions that we provide for some platforms.
420 AC_CONFIG_LIBOBJ_DIR([common/replacements])
421 AC_REPLACE_FUNCS([\
422         fdatasync \
423         fsync \
424         get_current_dir_name \
425         getdelim \
426         getline \
427         openlog \
428         open_memstream \
429         poll \
430         posix_memalign \
431         pread \
432         pwrite \
433         realpath \
434         strndup \
435         sysconf \
436         syslog \
437         vsyslog])
439 dnl Check whether printf("%m") works
440 AC_CACHE_CHECK([whether the printf family supports %m],
441   [nbdkit_cv_func_printf_percent_m],
442   [AC_RUN_IFELSE(
443     [AC_LANG_PROGRAM([[
444 #include <stdio.h>
445 #include <string.h>
446 #include <errno.h>
447     ]], [[
448     char buf[200] = "";
449     errno = EINVAL;
450     snprintf(buf, sizeof buf, "%m");
451     return !!strcmp (buf, strerror (EINVAL));
452     ]])],
453     [nbdkit_cv_func_printf_percent_m=yes],
454     [nbdkit_cv_func_printf_percent_m=no],
455     [[
456     case "$host_os" in
457       *-gnu* | gnu*) nbdkit_cv_func_printf_percent_m=yes;;
458       *) nbdkit_cv_func_printf_percent_m="guessing no";;
459     esac
460     ]])])
461 AS_IF([test "x$nbdkit_cv_func_printf_percent_m" = xyes],
462   [AC_DEFINE([HAVE_VFPRINTF_PERCENT_M],[1],
463     [Define to 1 if vfprintf supports %m.])])
465 old_LIBS="$LIBS"
466 AC_SEARCH_LIBS([dlsym], [dl dld], [
467         AS_IF([test "x$ac_cv_search_dlsym" != "xnone required"],
468             [DL_LIBS="$ac_cv_search_dlsym"], [DL_LIBS=])
469         AC_SUBST([DL_LIBS])
470     ], [AC_MSG_ERROR([unable to find the dlsym() function])
472 LIBS="$old_LIBS"
474 dnl Test if <iconv.h> header can build working binaries.
476 dnl On FreeBSD: iconv and libiconv both exist, both can be installed
477 dnl simultaneously, <iconv.h> can exist in two separate places, and
478 dnl if you get the wrong header/library mix everything breaks.
480 dnl On Haiku: libiconv is required to link to iconv_* functions.
481 AC_ARG_WITH([iconv],
482     [AS_HELP_STRING([--without-iconv],
483                     [don't try to link against iconv @<:@default=check@:>@])],
484     [],
485     [with_iconv=check])
486 AS_IF([test "x$with_iconv" != "xno"],[
487     AC_CHECK_HEADER([iconv.h],[
488         AC_MSG_CHECKING([if <iconv.h> can be used to link a program])
489         AC_LINK_IFELSE([
490 AC_LANG_SOURCE([[
491 #include <stdio.h>
492 #include <stdlib.h>
493 #include <iconv.h>
495 main (int argc, char *argv[])
497   iconv_t ic = iconv_open ("", "");
498   iconv_close (ic);
499   exit (0);
502             ],[
503             AC_MSG_RESULT([yes])
504             iconv_working=yes
505             ],[
506             AC_MSG_RESULT([no])
507             ])
508         ])
509     ])
510 AM_CONDITIONAL([HAVE_ICONV], [test "x$iconv_working" = "xyes"])
512 use_linker_script=yes
514 dnl Don't use linker script on FreeBSD because FreeBSD's linker is
515 dnl broken.  See eg:
516 dnl https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190851
517 dnl Also on macOS (darwin) which fails with:
518 dnl ld: unknown option: --version-script=./nbdkit.syms
519 dnl clang: error: linker command failed with exit code 1
520 AC_MSG_CHECKING([if we should disable the linker script (FreeBSD, macOS)])
521 AS_CASE([$host_os],
522   [freebsd*|darwin*], [
523       use_linker_script=no
524       AC_MSG_RESULT([yes])
525   ],
526   [AC_MSG_RESULT([no])]
529 dnl Check if -rdynamic linker flag works.
530 acx_nbdkit_save_LDFLAGS="${LDFLAGS}"
531 LDFLAGS="${LDFLAGS} -rdynamic"
532 AC_MSG_CHECKING([if linker supports -rdynamic])
533 AC_LINK_IFELSE([
534 AC_LANG_SOURCE([[
535 #include <stdlib.h>
537 main (int argc, char *argv[])
539   exit (EXIT_SUCCESS);
542     ],[
543     AC_MSG_RESULT([yes])
544     DL_LDFLAGS=-rdynamic
545     ],[
546     AC_MSG_RESULT([no])
548 dnl restore CFLAGS
549 LDFLAGS="${acx_nbdkit_save_LDFLAGS}"
550 AC_SUBST([DL_LDFLAGS])
552 dnl Check for dladdr in -ldl, optional.  This is a glibc extension.
553 old_LIBS="$LIBS"
554 LIBS="$DL_LIBS $LIBS"
555 AC_CHECK_FUNCS([dladdr])
556 LIBS="$old_LIBS"
558 dnl Is this Windows?
559 AC_MSG_CHECKING([if the target is Windows])
560 AS_CASE([$host_os],
561     [mingw*|msys*], [
562         is_windows=yes
563         LIBS="$LIBS -lmsvcrt -lkernel32 -luser32 -lws2_32"
564         NO_UNDEFINED_ON_WINDOWS="-no-undefined"
565         IMPORT_LIBRARY_ON_WINDOWS='-Wl,-L$(top_builddir)/server -Wl,-lnbdkit'
566         SOEXT="dll"
567         DIR_SEPARATOR_STR='\\'
568     ],
569     [is_windows=no
570      SOEXT="so"
571      DIR_SEPARATOR_STR=/]
573 AC_MSG_RESULT([$is_windows])
574 AC_SUBST([NO_UNDEFINED_ON_WINDOWS])
575 AC_SUBST([IMPORT_LIBRARY_ON_WINDOWS])
576 AC_SUBST([SOEXT])
577 AC_DEFINE_UNQUOTED([SOEXT],["$SOEXT"],[Extension used for shared objects/DLLs.])
578 AC_DEFINE_UNQUOTED([EXEEXT],["$EXEEXT"],[Extension used for executables.])
579 AC_DEFINE_UNQUOTED([DIR_SEPARATOR_STR],["$DIR_SEPARATOR_STR"],
580                    [String that separates path elements.])
581 AM_CONDITIONAL([IS_WINDOWS],[test "x$is_windows" = "xyes"])
583 AS_IF([test "x$is_windows" = "xyes"],[
584     dnl For Windows, look for the mc/windmc utility.
585     dnl XXX Do we need to check for mc.exe as well?
586     AC_CHECK_TOOLS([MC],[windmc mc],[no])
587     AS_IF([test "x$MC" = "xno"],
588           [AC_MSG_ERROR([mc/windmc utility must be available when compiling for Windows])])
590     dnl On Windows look for dlltool.
591     AC_CHECK_TOOLS([DLLTOOL],[dlltool],[no])
592     AS_IF([test "x$DLLTOOL" = "xno"],
593           [AC_MSG_ERROR([dlltool utility must be available when compiling for Windows])])
596 AC_SEARCH_LIBS([getaddrinfo], [network socket])
598 dnl Does this platform require libc_malloc_debug.so.0 (glibc >= 2.34)?
599 AC_MSG_CHECKING([if this is glibc >= 2.34])
600 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
601 #include <limits.h>
602 #if !defined(__GLIBC__) || __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 34)
603 #error "not glibc 2.34"
604 #endif
605         ]])], [is_glibc_234=yes], [is_glibc_234=no]
607 AC_MSG_RESULT([$is_glibc_234])
608 AM_CONDITIONAL([HAVE_GLIBC_234], [test "x$is_glibc_234" = "xyes"])
610 dnl Check for SELinux socket labelling (optional).
611 AC_ARG_WITH([selinux],
612     AS_HELP_STRING([--without-selinux], [disable SELinux support, used for socket labelling @<:@default=check@:>@]))
613 AS_IF([test "x$with_selinux" != xno], [
614     PKG_CHECK_MODULES([LIBSELINUX], [libselinux], [
615         AC_SUBST([LIBSELINUX_CFLAGS])
616         AC_SUBST([LIBSELINUX_LIBS])
617         AC_DEFINE([HAVE_LIBSELINUX],[1],[libselinux found at compile time.])
618     ], [AC_MSG_WARN([libselinux not found, sockets will not be labeled.])])
621 AS_IF([test "x$with_selinux" = xyes && test "x$LIBSELINUX_LIBS" = x], [
622     AC_MSG_ERROR([selinux requested but not found])
625 dnl Check for GnuTLS (optional, for TLS support).
626 AC_ARG_WITH([gnutls],
627     [AS_HELP_STRING([--without-gnutls], [disable TLS support via GnuTLS @<:@default=check@:>@])])
629 AS_IF([test "x$with_gnutls" != xno], [
630     PKG_CHECK_MODULES([GNUTLS], [gnutls >= 3.3.0], [
631         AC_SUBST([GNUTLS_CFLAGS])
632         AC_SUBST([GNUTLS_LIBS])
633         AC_DEFINE([HAVE_GNUTLS],[1],[gnutls found at compile time.])
634     ], [
635         AC_MSG_WARN([gnutls not found or < 3.3.0, TLS support will be disabled.])
636     ])
639 AS_IF([test "x$with_gnutls" = xyes && test x"$GNUTLS_LIBS" = x], [
640     AC_MSG_ERROR([gnutls requested but not found])
643 AM_CONDITIONAL([HAVE_GNUTLS], [test "x$GNUTLS_LIBS" != "x"])
645 AS_IF([test "x$GNUTLS_LIBS" != "x"],[
646     AC_MSG_CHECKING([for default TLS session priority string])
647     AC_ARG_WITH([tls-priority],
648         [AS_HELP_STRING([--with-tls-priority=...],
649                         [default TLS session priority string @<:@default=NORMAL@:>@])],
650         [tls_priority=$withval],
651         [tls_priority=NORMAL])
652     AC_MSG_RESULT([$tls_priority])
653     AC_DEFINE_UNQUOTED([TLS_PRIORITY],["$tls_priority"],
654                        [Default TLS session priority string])
656     # Check for APIs which may not be present.
657     old_LIBS="$LIBS"
658     LIBS="$GNUTLS_LIBS $LIBS"
659     AC_CHECK_FUNCS([\
660         gnutls_base64_decode2 \
661         gnutls_certificate_set_known_dh_params \
662         gnutls_group_get \
663         gnutls_group_get_name \
664         gnutls_pbkdf2 \
665         gnutls_session_set_verify_cert \
666         gnutls_srp_server_get_username \
667         gnutls_transport_is_ktls_enabled \
668     ])
669     AC_CHECK_HEADERS([gnutls/socket.h])
670     LIBS="$old_LIBS"
672     dnl macOS has its own program called certtool and packages the
673     dnl GnuTLS tool as "gnutls-certtool".
674     AC_CHECK_PROGS([CERTTOOL],[gnutls-certtool certtool],[certtool])
676 AM_CONDITIONAL([HAVE_GNUTLS_PBKDF2],
677     [test "x$GNUTLS_LIBS" != "x" && test "x$ac_cv_func_gnutls_pbkdf2" = xyes])
679 dnl Check for some commands used by the tests which should be the GNU
680 dnl coreutils variants.  On macOS these are prefixed with 'g' or 'gnu'.
681 AC_CHECK_PROGS([CUT],[gnucut cut],[cut])
682 AC_CHECK_PROGS([STAT],[gstat stat],[stat])
683 AC_CHECK_PROGS([TRUNCATE],[gtruncate truncate],[truncate])
685 AC_ARG_ENABLE([linuxdisk],
686     [AS_HELP_STRING([--disable-linuxdisk],
687                     [disable linuxdisk plugin @<:@default=check@:>@])],
688     [],
689     [enable_linuxdisk=check])
690 dnl Check for mke2fs -d (used by linuxdisk plugin).  There are two
691 dnl possible outcomes that we care about: (1) We have mke2fs and
692 dnl it supports the -d option.  (2) We either don't have mke2fs
693 dnl or it's too old to support the -d option (eg. on RHEL 7).
694 mke2fs_with_d=no
695 AS_IF([test "$enable_linuxdisk" != "no"], [
696     AC_MSG_CHECKING([for mke2fs supporting the -d option])
697     AS_IF([mke2fs -V >/dev/null 2>&1], [
698         AS_IF([LANG=C mke2fs -d 2>&1 | grep -sq "option requires an argument"], [
699             mke2fs_with_d=yes
700         ])
701     ])
702     AC_MSG_RESULT([$mke2fs_with_d])
704 AM_CONDITIONAL([HAVE_MKE2FS_WITH_D],[test "x$mke2fs_with_d" = "xyes"])
706 dnl Check for valgrind.
707 AC_CHECK_PROG([VALGRIND],[valgrind],[valgrind],[no])
709 dnl If valgrind headers are available (optional).
710 dnl Although the runtime check adds only a trivial amount of code, you can
711 dnl avoid it with explicit --disable-valgrind.
712 AC_ARG_ENABLE([valgrind],
713     [AS_HELP_STRING([--disable-valgrind],
714                     [disable Valgrind probe])],
715     [],
716     [enable_valgrind=check])
717 AS_IF([test "x$enable_valgrind" != "xno"],[
718     PKG_CHECK_MODULES([VALGRIND], [valgrind], [
719         AC_SUBST([VALGRIND_CFLAGS])
720         AC_SUBST([VALGRIND_LIBS])
721         AC_DEFINE([HAVE_VALGRIND],[1],[Valgrind headers found at compile time])
722     ],[
723         AS_IF([test "x$enable_valgrind" = "xyes"], [
724             AC_MSG_ERROR([--enable-valgrind given, but Valgrind headers are not available])
725         ])
726     ])
729 dnl Build the special libFuzzer version of nbdkit.  DO NOT USE THIS for
730 dnl normal builds.  See fuzzing/README.
731 AC_ARG_ENABLE([libfuzzer],
732     [AS_HELP_STRING([--enable-libfuzzer],
733                     [build libFuzzer test binary (developers only)])],
734     [],
735     [enable_libfuzzer=no])
736 AS_IF([test "x$enable_libfuzzer" = "xyes"],[
737     AC_DEFINE([ENABLE_LIBFUZZER],[1],[Enable special libFuzzer binary])
738     # We have to disable the linker script for libFuzzer because Clang
739     # adds loads of fuzzer and ASAN-related symbols that are required
740     # by the plugins but which our linker script tries to hide.
741     use_linker_script=no
743 AM_CONDITIONAL([ENABLE_LIBFUZZER],[test "x$enable_libfuzzer" = "xyes"])
745 dnl Should we use the linker script (ld --version-script)?  Note
746 dnl some tests above may set this variable.
747 AC_ARG_ENABLE([linker-script],
748     [AS_HELP_STRING([--disable-linker-script],
749                     [disable linker script for server (developers only)])],
750     [use_linker_script=$enableval],
751     [])
752 AM_CONDITIONAL([USE_LINKER_SCRIPT],
753                [test "x$use_linker_script" = "xyes"])
755 dnl Bash completion.
756 AC_ARG_WITH([bash-completions],
757     [AS_HELP_STRING([--without-bash-completions], [disable installing bash completions @<:@default=check@:>@])])
759 AS_IF([test "x$with_bash_completions" != xno], [
760     PKG_CHECK_MODULES([BASH_COMPLETION], [bash-completion >= 2.0], [
761         bash_completion=yes
762         AC_MSG_CHECKING([for bash-completions directory])
763         m4_ifdef([PKG_CHECK_VAR],[
764             PKG_CHECK_VAR(bashcompdir, [bash-completion], [completionsdir])
765         ])
766         AS_IF([test -z "$bashcompdir"], [
767             bashcompdir="${sysconfdir}/bash_completion.d"
768         ])
769         AC_MSG_RESULT([$bashcompdir])
770         AC_SUBST([bashcompdir])
771     ],[
772         bash_completion=no
773         AC_MSG_WARN([bash-completion not installed])
774     ])
777 AS_IF([test "x$bash_completion" = xno && test "x$with_bash_completions" = xyes], [
778     AC_MSG_ERROR([bash-completions requested but required packages not found])
781 AM_CONDITIONAL([HAVE_BASH_COMPLETION],[test "x$bash_completion" = "xyes"])
783 dnl Check we have enough to run podwrapper.
785 AC_ARG_WITH([manpages],
786     [AS_HELP_STRING([--without-manpages], [Do not build man pages @<:@default=check@:>@])],
787     [],
788     [: m4_divert_text([DEFAULTS], [with_manpages=check])])
790 enable_pod=no
791 AC_CHECK_PROGS([PERL], [perl], [])
793 AS_IF([test "x$with_manpages" != xno], [
794     AS_IF([test "x$PERL" != "x"],[
795         AC_MSG_CHECKING([if we have perl Pod::Man and Pod::Simple])
796         AS_IF([$PERL -MPod::Man -MPod::Simple -e 1 >&AS_MESSAGE_LOG_FD 2>&1],[
797             enable_pod=yes
798         ])
799         AC_MSG_RESULT([$enable_pod])
800     ])
803 AS_IF([test "x$enable_pod" = xno && test "x$with_manpages" = xyes], [
804     AC_MSG_ERROR([man-pages requested but required packages not found])
807 AM_CONDITIONAL([HAVE_POD],
808                [test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"])
810 dnl Define the path to the podwrapper program.
811 PODWRAPPER="$PERL $(pwd)/podwrapper.pl"
812 AC_SUBST([PODWRAPPER])
814 dnl Allow all plugins and filters to be disabled.
815 AC_ARG_ENABLE([plugins],
816     [AS_HELP_STRING([--disable-plugins],
817                     [disable all bundled plugins and filters])])
818 AM_CONDITIONAL([HAVE_PLUGINS], [test "x$enable_plugins" != "xno"])
820 dnl Check for Perl, for embedding in the perl plugin.
821 dnl Note that the perl binary is checked above.
822 AC_ARG_ENABLE([perl],
823     [AS_HELP_STRING([--disable-perl], [disable Perl embed plugin])],
824     [],
825     [enable_perl=yes])
826 AS_IF([test "x$PERL" != "xno" && test "x$enable_perl" != "xno"],[
827     dnl Check for Perl archlib.
828     AC_MSG_CHECKING([for Perl embed archlib])
829     PERL_ARCHLIB="$($PERL -MConfig -e 'print $Config{archlib}')"
830     AS_IF([ test -n "$PERL_ARCHLIB" ],[
831         AC_MSG_RESULT([$PERL_ARCHLIB])
832     ],[
833         AC_MSG_NOTICE([Perl embed module disabled])
834         enable_perl=no
835     ])
837     dnl Check for Perl CFLAGS.
838     AC_MSG_CHECKING([for Perl embed CFLAGS])
839     PERL_CFLAGS="$($PERL -MExtUtils::Embed -e 'ccflags')"
840     AS_IF([ test -n "$PERL_CFLAGS" ],[
841         AC_MSG_RESULT([$PERL_CFLAGS])
842     ],[
843         AC_MSG_NOTICE([Perl embed module disabled])
844         enable_perl=no
845     ])
847     dnl Check for Perl LDOPTS.
848     AC_MSG_CHECKING([for Perl embed LDOPTS])
849     PERL_LDOPTS="$($PERL -MExtUtils::Embed -e 'ldopts')"
850     AC_MSG_RESULT([$PERL_LDOPTS])
852     dnl Check these actually work.
853     AC_MSG_CHECKING([whether Perl modules will compile])
854     old_CFLAGS="$CFLAGS"
855     old_LIBS="$LIBS"
856     CFLAGS="$PERL_CFLAGS -I$PERL_ARCHLIB/CORE $CFLAGS"
857     LIBS="$PERL_LDOPTS $LIBS"
858     AC_CHECK_FUNCS([perl_alloc])
859     CFLAGS="$old_CFLAGS"
860     LIBS="$old_LIBS"
861     if test "x$ac_cv_func_perl_alloc" != xyes; then
862       enable_perl=no
863     fi
865 AM_CONDITIONAL([HAVE_PERL],[test "x$enable_perl" != "xno" && test "x$PERL" != "xno"])
866 AC_SUBST([PERL_ARCHLIB])
867 AC_SUBST([PERL_CFLAGS])
868 AC_SUBST([PERL_LDOPTS])
870 dnl Check for Python 3, for embedding in the python plugin.
871 AC_PATH_PROGS([PYTHON],[python3 python],[no])
872 AC_ARG_ENABLE([python],
873     [AS_HELP_STRING([--disable-python], [disable Python embed plugin])],
874     [],
875     [enable_python=yes])
876 AS_IF([test "x$PYTHON" != "xno" && test "x$enable_python" != "xno"],[
877     AC_MSG_CHECKING([version of $PYTHON])
878     PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info@<:@0@:>@)"`
879     PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info@<:@1@:>@)"`
880     PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR"
881     AS_IF([test -n "$PYTHON_VERSION"],[
882         AC_MSG_RESULT([$PYTHON_VERSION])
883     ],[
884         AC_MSG_NOTICE([Python embed module disabled])
885         enable_python=no
886     ])
888     AC_MSG_CHECKING([Python major version is 3])
889     AS_IF([test "x$PYTHON_VERSION_MAJOR" = "x3"],[
890         AC_MSG_RESULT([yes])
891     ],[
892         AC_MSG_RESULT([no])
893         AC_MSG_ERROR([Python $PYTHON_VERSION_MAJOR <> 3 is no longer supported.
895 Python 2 end of life is 2020-01-01 and nbdkit >= 1.16 no longer
896 supports it.
898 If you want to use Python 2, you will need to use nbdkit 1.14.])
899     ])
901     dnl Check for Python CFLAGS, libraries.
902     dnl For Python >= 3.8 we have to use python-<VERSION>-embed.pc, see:
903     dnl https://docs.python.org/3.8/whatsnew/3.8.html#debug-build-uses-the-same-abi-as-release-build
904     dnl The python.pc is called python-<VERSION>.pc on Debian and
905     dnl later versions of Fedora, and python.pc on older versions
906     dnl of Fedora.
907     PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"-embed], [
908         AC_SUBST([PYTHON_CFLAGS])
909         AC_SUBST([PYTHON_LIBS])
910         AC_SUBST([PYTHON_VERSION])
911         AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
912     ],[
913     PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"], [
914         AC_SUBST([PYTHON_CFLAGS])
915         AC_SUBST([PYTHON_LIBS])
916         AC_SUBST([PYTHON_VERSION])
917         AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
918     ],[
919     PKG_CHECK_MODULES([PYTHON], [python], [
920         AC_SUBST([PYTHON_CFLAGS])
921         AC_SUBST([PYTHON_LIBS])
922         AC_SUBST([PYTHON_VERSION])
923         AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
924     ],[
925         AC_MSG_WARN([python $PYTHON_VERSION not found])
926         enable_python=no
927     ])])])
929 AM_CONDITIONAL([HAVE_PYTHON],[test "x$enable_python" != "xno" && test "x$PYTHON" != "xno"])
930 AC_SUBST([PYTHON_CFLAGS])
931 AC_SUBST([PYTHON_LIBS])
932 AC_SUBST([PYTHON_LDFLAGS])
934 dnl For the OCaml plugin, you can set OCAMLOPTFLAGS before running
935 dnl ./configure to specify any extra flags you want to pass to
936 dnl ocamlopt.  For example to enable OCaml warnings:
937 dnl OCAMLOPTFLAGS="-warn-error +A-3"
938 AC_SUBST([OCAMLOPTFLAGS])
940 dnl Check for OCaml, for embedding in the ocaml plugin.
941 AC_PROG_OCAML
942 AC_ARG_ENABLE([ocaml],
943     [AS_HELP_STRING([--disable-ocaml], [disable OCaml embed plugin])],
944     [],
945     [enable_ocaml=yes])
946 AS_IF([test "x$OCAMLOPT" != "xno" && test "x$enable_ocaml" != "xno"],[
947     dnl Check OCaml can create a shared library (see README for details).
948     AC_MSG_CHECKING([if $OCAMLOPT can create a shared library])
949     echo 'print_endline "test"' > conftest.ml
950     AS_IF([$OCAMLOPT $OCAMLOPTFLAGS -output-obj -runtime-variant _pic -o conftest.so conftest.ml >&AS_MESSAGE_LOG_FD 2>&1],[
951         AC_MSG_RESULT([yes])
952         ocaml_link_shared=yes
953     ],[
954         AC_MSG_RESULT([no])
955     ])
956     rm -f conftest.ml conftest.cmi conftest.cmx conftest.so conftest.o
958 AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLOPT" != "xno" &&
959                              test "x$ocaml_link_shared" = "xyes"])
960 AM_CONDITIONAL([HAVE_OCAMLDOC],[test "x$OCAMLDOC" != "xno"])
962 dnl Check if OCaml has caml_alloc_initialized_string (added 2017).
963 AS_IF([test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \
964        test "x$enable_ocaml" = "xyes"],[
965     AC_MSG_CHECKING([for caml_alloc_initialized_string])
966     cat >conftest.c <<'EOF'
967 #include <caml/alloc.h>
968 int main () { char *p = (void *) caml_alloc_initialized_string; return 0; }
970     AS_IF([$OCAMLC conftest.c >&AS_MESSAGE_LOG_FD 2>&1],[
971         AC_MSG_RESULT([yes])
972         AC_DEFINE([HAVE_CAML_ALLOC_INITIALIZED_STRING],[1],
973                   [caml_alloc_initialized_string found at compile time.])
974     ],[
975         AC_MSG_RESULT([no])
976     ])
977     rm -f conftest.c conftest.o
980 dnl Check if OCaml has caml_shutdown (added 2014).
981 AS_IF([test "x$OCAMLC" != "xno" && test "x$OCAMLFIND" != "xno" && \
982        test "x$enable_ocaml" = "xyes"],[
983     AC_MSG_CHECKING([for caml_shutdown])
984     cat >conftest.c <<'EOF'
985 #include <caml/callback.h>
986 int main () { char *p = (void *) caml_shutdown; return 0; }
988     AS_IF([$OCAMLC conftest.c >&AS_MESSAGE_LOG_FD 2>&1],[
989         AC_MSG_RESULT([yes])
990         AC_DEFINE([HAVE_CAML_SHUTDOWN],[1],
991                   [caml_shutdown found at compile time.])
992     ],[
993         AC_MSG_RESULT([no])
994     ])
995     rm -f conftest.c conftest.o
998 dnl For developing plugins in Rust, optional.
999 dnl Rust does not play nicely with VPATH builds
1000 AC_CHECK_PROG([CARGO],[cargo],[cargo],[no])
1001 AC_CHECK_PROG([RUSTC],[rustc],[rustc],[no])
1002 AC_ARG_ENABLE([rust],
1003     [AS_HELP_STRING([--disable-rust], [disable Rust plugin])],
1004     [],
1005     [if test "x$(realpath $srcdir)" = "x$(realpath .)"; then
1006        enable_rust=yes
1007      else
1008        enable_rust=no
1009      fi])
1010 AS_IF([test "x$enable_rust" != "xno" && test "x$CARGO" != "xno" && test "x$RUSTC" != "xno"],
1011       [have_rust=yes], [have_rust=no])
1012 AM_CONDITIONAL([HAVE_RUST], [test "x$have_rust" = "xyes"])
1013 AS_IF([test "x$have_rust" = "xyes"], [
1014     printf "cargo version: "; $CARGO --version
1015     printf "rustc version: "; $RUSTC --version
1018 dnl Check for Ruby, for embedding in the Ruby plugin.
1019 AC_CHECK_PROG([RUBY],[ruby],[ruby],[no])
1020 AC_ARG_ENABLE([ruby],
1021     [AS_HELP_STRING([--disable-ruby], [disable Ruby plugin])],
1022     [],
1023     [enable_ruby=yes])
1024 AS_IF([test "x$RUBY" != "xno" && test "x$enable_ruby" != "xno"],[
1025     PKG_CHECK_MODULES([RUBY], [ruby], [
1026         AC_SUBST([RUBY_CFLAGS])
1027         AC_SUBST([RUBY_LIBS])
1028     ],[
1029         AC_MSG_WARN([ruby not found])
1030         enable_ruby=no
1031     ])
1033 AM_CONDITIONAL([HAVE_RUBY],[test "x$RUBY" != "xno" &&
1034                             test "x$enable_ruby" = "xyes"])
1036 dnl Check for Tcl, for embedding in the Tcl plugin.
1037 AC_ARG_ENABLE([tcl],
1038     [AS_HELP_STRING([--disable-tcl], [disable Tcl plugin])],
1039     [],
1040     [enable_tcl=yes])
1041 AS_IF([test "x$enable_tcl" != "xno"],[
1042     PKG_CHECK_MODULES([TCL], [tcl], [
1043         AC_SUBST([TCL_CFLAGS])
1044         AC_SUBST([TCL_LIBS])
1045     ],[
1046         AC_MSG_WARN([Tcl not found])
1047         enable_tcl=no
1048     ])
1050 AM_CONDITIONAL([HAVE_TCL],[test "x$enable_tcl" = "xyes"])
1052 dnl Check for Lua, for embedding in the Lua plugin.
1053 AC_ARG_ENABLE([lua],
1054     [AS_HELP_STRING([--disable-lua], [disable Lua plugin])],
1055     [],
1056     [enable_lua=yes])
1057 AS_IF([test "x$enable_lua" != "xno"],[
1058     PKG_CHECK_MODULES([LUA], [lua], [
1059         AC_SUBST([LUA_CFLAGS])
1060         AC_SUBST([LUA_LIBS])
1062         dnl Lua 5.1 used by RHEL 7 does not have lua_isinteger.
1063         old_LIBS="$LIBS"
1064         LIBS="$LUA_LIBS $LIBS"
1065         AC_CHECK_FUNCS([lua_isinteger])
1066         LIBS="$old_LIBS"
1067     ],[
1068         AC_MSG_WARN([Lua not found])
1069         enable_lua=no
1070     ])
1072 AM_CONDITIONAL([HAVE_LUA],[test "x$enable_lua" = "xyes"])
1074 dnl Check for golang.
1075 AC_ARG_ENABLE([golang],
1076     AS_HELP_STRING([--disable-golang], [disable Go language plugin]),
1077         [],
1078         [enable_golang=yes])
1079 AS_IF([test "x$enable_golang" != "xno"],[
1080     AC_CHECK_PROG([GOLANG],[go],[go],[no])
1081     AS_IF([test "x$GOLANG" != "xno"],[
1082         AC_MSG_CHECKING([if $GOLANG is usable])
1083         AS_IF([$GOLANG run $srcdir/plugins/golang/config-test.go 2>&AS_MESSAGE_LOG_FD && \
1084                $GOLANG help modules 2>&AS_MESSAGE_LOG_FD 1>&2],[
1085             AC_MSG_RESULT([yes])
1087             # Substitute some golang environment.
1088             GOOS=`$GOLANG env GOOS`
1089             GOARCH=`$GOLANG env GOARCH`
1090             GOROOT=`$GOLANG env GOROOT`
1091             AC_SUBST([GOOS])
1092             AC_SUBST([GOARCH])
1093             AC_SUBST([GOROOT])
1094         ],[
1095             AC_MSG_RESULT([no])
1096             AC_MSG_WARN([golang ($GOLANG) is installed but not usable])
1097             GOLANG=no
1098         ])
1099     ])
1100 ],[GOLANG=no])
1101 AM_CONDITIONAL([HAVE_GOLANG],[test "x$GOLANG" != "xno"])
1103 dnl Check for libblkio (only if you want to compile the blkio plugin).
1104 AC_ARG_WITH([libblkio],
1105     [AS_HELP_STRING([--without-libblkio],
1106                     [disable blkio plugin @<:@default=check@:>@])],
1107     [],
1108     [with_libblkio=check])
1109 AS_IF([test "$with_libblkio" != "no"],[
1110     PKG_CHECK_MODULES([LIBBLKIO], [blkio],[
1111         printf "libblkio version is "; $PKG_CONFIG --modversion blkio
1112         AC_SUBST([LIBBLKIO_CFLAGS])
1113         AC_SUBST([LIBBLKIO_LIBS])
1114         AC_DEFINE([HAVE_LIBBLKIO],[1],[libblkio found at compile time.])
1115     ],
1116     [AC_MSG_WARN([libblkio not found, blkio plugin will be disabled])])
1118 AM_CONDITIONAL([HAVE_LIBBLKIO],[test "x$LIBBLKIO_LIBS" != "x"])
1120 dnl Check for curl (only if you want to compile the curl plugin).
1121 AC_ARG_WITH([curl],
1122     [AS_HELP_STRING([--without-curl],
1123                     [disable curl plugin @<:@default=check@:>@])],
1124     [],
1125     [with_curl=check])
1126 AS_IF([test "$with_curl" != "no"],[
1127     PKG_CHECK_MODULES([CURL], [libcurl],[
1128         printf "libcurl version is "; $PKG_CONFIG --modversion libcurl
1129         AC_SUBST([CURL_CFLAGS])
1130         AC_SUBST([CURL_LIBS])
1131         AC_DEFINE([HAVE_CURL],[1],[curl found at compile time.])
1132         AC_CHECK_DECL([CURLOPT_UNIX_SOCKET_PATH], [
1133             AC_DEFINE([HAVE_CURLOPT_UNIX_SOCKET_PATH],[1],
1134                       [CURLOPT_UNIX_SOCKET_PATH found at compile time.])
1135             ], [], [#include <curl/curl.h>])
1136         dnl Detect both CURLOPT_PROTOCOLS_STR and
1137         dnl CURLOPT_REDIR_PROTOCOLS_STR.  Both were added in curl
1138         dnl 7.85.0 so we assume if one exists then both do.
1139         AC_CHECK_DECL([CURLOPT_PROTOCOLS_STR], [
1140             AC_DEFINE([HAVE_CURLOPT_PROTOCOLS_STR],[1],
1141                       [CURLOPT_PROTOCOLS_STR found at compile time.])
1142             ], [], [#include <curl/curl.h>])
1143         dnl Detect various HTTP version enums supported by curl.
1144         AC_CHECK_DECL([CURL_HTTP_VERSION_2_0], [
1145             AC_DEFINE([HAVE_CURL_HTTP_VERSION_2_0],[1],
1146                       [CURL_HTTP_VERSION_2_0 found at compile time.])
1147             ], [], [#include <curl/curl.h>])
1148         AC_CHECK_DECL([CURL_HTTP_VERSION_2TLS], [
1149             AC_DEFINE([HAVE_CURL_HTTP_VERSION_2TLS],[1],
1150                       [CURL_HTTP_VERSION_2TLS found at compile time.])
1151             ], [], [#include <curl/curl.h>])
1152         AC_CHECK_DECL([CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE], [
1153             AC_DEFINE([HAVE_CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE],[1],
1154                       [CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE found at compile time.])
1155             ], [], [#include <curl/curl.h>])
1156         AC_CHECK_DECL([CURL_HTTP_VERSION_3], [
1157             AC_DEFINE([HAVE_CURL_HTTP_VERSION_3],[1],
1158                       [CURL_HTTP_VERSION_3 found at compile time.])
1159             ], [], [#include <curl/curl.h>])
1160         AC_CHECK_DECL([CURL_HTTP_VERSION_3ONLY], [
1161             AC_DEFINE([HAVE_CURL_HTTP_VERSION_3ONLY],[1],
1162                       [CURL_HTTP_VERSION_3ONLY found at compile time.])
1163             ], [], [#include <curl/curl.h>])
1164         dnl Detect various newer SSL versions, added in 7.54.0
1165         AC_CHECK_DECL([CURL_SSLVERSION_MAX_DEFAULT], [
1166             AC_DEFINE([HAVE_CURL_SSLVERSION_MAX_DEFAULT],[1],
1167                       [CURL_SSLVERSION_MAX_DEFAULT found at compile time.])
1168             ], [], [#include <curl/curl.h>])
1169         AC_CHECK_DECL([CURL_SSLVERSION_MAX_TLSv1_0], [
1170             AC_DEFINE([HAVE_CURL_SSLVERSION_MAX_TLSv1_0],[1],
1171                       [CURL_SSLVERSION_MAX_TLSv1_0 found at compile time.])
1172             ], [], [#include <curl/curl.h>])
1173         AC_CHECK_DECL([CURL_SSLVERSION_MAX_TLSv1_1], [
1174             AC_DEFINE([HAVE_CURL_SSLVERSION_MAX_TLSv1_1],[1],
1175                       [CURL_SSLVERSION_MAX_TLSv1_1 found at compile time.])
1176             ], [], [#include <curl/curl.h>])
1177         AC_CHECK_DECL([CURL_SSLVERSION_MAX_TLSv1_2], [
1178             AC_DEFINE([HAVE_CURL_SSLVERSION_MAX_TLSv1_2],[1],
1179                       [CURL_SSLVERSION_MAX_TLSv1_2 found at compile time.])
1180             ], [], [#include <curl/curl.h>])
1181         AC_CHECK_DECL([CURL_SSLVERSION_MAX_TLSv1_3], [
1182             AC_DEFINE([HAVE_CURL_SSLVERSION_MAX_TLSv1_3],[1],
1183                       [CURL_SSLVERSION_MAX_TLSv1_3 found at compile time.])
1184             ], [], [#include <curl/curl.h>])
1185     ],
1186     [AC_MSG_WARN([curl not found, curl plugin will be disabled])])
1188 AM_CONDITIONAL([HAVE_CURL],[test "x$CURL_LIBS" != "x"])
1190 dnl Check for libssh (only if you want to compile the ssh plugin).
1191 AC_ARG_WITH([ssh],
1192     [AS_HELP_STRING([--without-ssh],
1193                     [disable ssh plugin @<:@default=check@:>@])],
1194     [],
1195     [with_ssh=check])
1196 AS_IF([test "$with_ssh" != "no"],[
1197     PKG_CHECK_MODULES([SSH], [libssh >= 0.8.0],[
1198         printf "libssh version is "; $PKG_CONFIG --modversion libssh
1199         # Ubuntu 18.04 shipped prerelease of libssh-0.8.0 without
1200         # SSH_OPTIONS_NODELAY
1201         old_CFLAGS="$CFLAGS"
1202         CFLAGS="$CFLAGS $SSH_CFLAGS"
1203         AC_CHECK_DECL([SSH_OPTIONS_NODELAY], [
1204             AC_SUBST([SSH_CFLAGS])
1205             AC_SUBST([SSH_LIBS])
1206             # We don't need this in the code, just in this configure
1207             HAVE_SSH_OPTIONS_NODELAY=1
1208             ], [], [
1209             #include <libssh/libssh.h>
1210         ])
1211         CFLAGS="$old_CFLAGS"
1212     ],
1213     [AC_MSG_WARN([libssh not found, ssh plugin will be disabled])])
1215 AM_CONDITIONAL([HAVE_SSH],[test "x$HAVE_SSH_OPTIONS_NODELAY" != "x"])
1217 dnl Check for xorriso or genisoimage or mkisofs
1218 dnl (only if you want to compile the iso plugin).
1219 ISOPROG="no"
1220 is_xorriso=0
1221 AC_ARG_WITH([iso],
1222     [AS_HELP_STRING([--without-iso],
1223                     [disable iso plugin @<:@default=check@:>@])],
1224     [],
1225     [with_iso=check])
1226 AS_IF([test "$with_iso" != "no"],[
1227     AC_CHECK_PROG([XORRISO],[xorriso],[xorriso],[no])
1228     AC_CHECK_PROG([GENISOIMAGE],[genisoimage],[genisoimage],[no])
1229     AC_CHECK_PROG([MKISOFS],[mkisofs],[mkisofs],[no])
1230     AS_IF([test "x$XORRISO" != "xno"],[
1231         ISOPROG="$XORRISO"
1232         is_xorriso=1
1233     ],[
1234         AS_IF([test "x$GENISOIMAGE" != "xno"],[
1235             ISOPROG="$GENISOIMAGE"
1236         ],[
1237             AS_IF([test "x$MKISOFS" != "xno"],[
1238                 ISOPROG="$MKISOFS"
1239             ])
1240         ])
1241     ])
1242     AS_IF([test "x$ISOPROG" != "xno"],[
1243         printf "picked %s for nbdkit-iso-plugin\n" "$ISOPROG"
1244         AC_DEFINE_UNQUOTED([ISOPROG],["$ISOPROG"],
1245                            [Program used by iso plugin to make ISOs.])
1246         AS_IF([test "x$is_xorriso" = "x1"], [
1247             AC_DEFINE([ISOPROG_IS_XORRISO],[1],
1248                       [ISO program behaves like xorriso.])
1249         ])
1250     ])
1252 AC_SUBST([ISOPROG])
1253 AM_CONDITIONAL([HAVE_ISO],[test "x$ISOPROG" != "xno"])
1255 dnl Check for libvirt (only if you want to compile the libvirt plugin).
1256 AC_ARG_WITH([libvirt],
1257     [AS_HELP_STRING([--without-libvirt],
1258                     [disable libvirt plugin @<:@default=check@:>@])],
1259     [],
1260     [with_libvirt=check])
1261 AS_IF([test "$with_libvirt" != "no"],[
1262     PKG_CHECK_MODULES([LIBVIRT], [libvirt],[
1263         AC_SUBST([LIBVIRT_CFLAGS])
1264         AC_SUBST([LIBVIRT_LIBS])
1265         AC_DEFINE([HAVE_LIBVIRT],[1],[libvirt found at compile time.])
1266     ],
1267     [AC_MSG_WARN([libvirt not found, libvirt plugin will be disabled])])
1269 AM_CONDITIONAL([HAVE_LIBVIRT],[test "x$LIBVIRT_LIBS" != "x"])
1271 dnl Check for zlib (only if you want to compile the gzip filter).
1272 AC_ARG_WITH([zlib],
1273     [AS_HELP_STRING([--without-zlib],
1274                     [disable gzip filter @<:@default=check@:>@])],
1275     [],
1276     [with_zlib=check])
1277 AS_IF([test "$with_zlib" != "no"],[
1278     PKG_CHECK_MODULES([ZLIB], [zlib >= 1.2.3.5],[
1279         AC_SUBST([ZLIB_CFLAGS])
1280         AC_SUBST([ZLIB_LIBS])
1281         AC_DEFINE([HAVE_ZLIB],[1],[zlib found at compile time.])
1282     ],
1283     [AC_MSG_WARN([zlib >= 1.2.3.5 not found, gzip filter will be disabled])])
1285 AM_CONDITIONAL([HAVE_ZLIB],[test "x$ZLIB_LIBS" != "x"])
1287 dnl Check for libnbd (only if you want to compile the nbd plugin).
1288 AC_ARG_WITH([libnbd],
1289     [AS_HELP_STRING([--without-libnbd],
1290                     [disable nbd plugin @<:@default=check@:>@])],
1291     [],
1292     [with_libnbd=check])
1293 AS_IF([test "$with_libnbd" != "no"],[
1294     PKG_CHECK_MODULES([LIBNBD], [libnbd >= 0.9.8],[
1295         printf "libnbd version is "; $PKG_CONFIG --modversion libnbd
1296         AC_SUBST([LIBNBD_CFLAGS])
1297         AC_SUBST([LIBNBD_LIBS])
1298         AC_DEFINE([HAVE_LIBNBD],[1],[libnbd found at compile time.])
1299     ],
1300     [AC_MSG_WARN([libnbd >= 0.9.8 not found, nbd plugin will be crippled])])
1303 dnl For backwards compatibilty, we have a second way to disable the nbd plugin.
1304 AC_ARG_ENABLE([nbd-plugin],
1305     [AS_HELP_STRING([--disable-nbd-plugin], [disable nbd plugin (deprecated, use --without-libnbd)])],
1306     [],
1307     [enable_nbd_plugin=yes])
1308 AM_CONDITIONAL([HAVE_LIBNBD],
1309   [test "x$LIBNBD_LIBS" != "x" && test "x$enable_nbd_plugin" = "xyes"])
1311 dnl Check for liblzma (only if you want to compile the xz filter).
1312 AC_ARG_WITH([liblzma],
1313     [AS_HELP_STRING([--without-liblzma],
1314                     [disable xz filter @<:@default=check@:>@])],
1315     [],
1316     [with_liblzma=check])
1317 AS_IF([test "$with_liblzma" != "no"],[
1318     PKG_CHECK_MODULES([LIBLZMA], [liblzma],[
1319         AC_SUBST([LIBLZMA_CFLAGS])
1320         AC_SUBST([LIBLZMA_LIBS])
1321         AC_DEFINE([HAVE_LIBLZMA],[1],[liblzma found at compile time.])
1322     ],
1323     [AC_MSG_WARN([liblzma not found, xz filter will be disabled])])
1325 AM_CONDITIONAL([HAVE_LIBLZMA],[test "x$LIBLZMA_LIBS" != "x"])
1327 dnl Check for zstd (only if you want to compile allocator=zstd).
1328 AC_ARG_WITH([libzstd],
1329     [AS_HELP_STRING([--without-libzstd],
1330                     [disable allocator=zstd @<:@default=check@:>@])],
1331     [],
1332     [with_libzstd=check])
1333 AS_IF([test "$with_libzstd" != "no"],[
1334     PKG_CHECK_MODULES([LIBZSTD], [libzstd],[
1335         AC_SUBST([LIBZSTD_CFLAGS])
1336         AC_SUBST([LIBZSTD_LIBS])
1337         AC_DEFINE([HAVE_LIBZSTD],[1],[libzstd found at compile time.])
1338     ],
1339     [AC_MSG_WARN([libzstd not found, allocator=zstd will be disabled])])
1341 AM_CONDITIONAL([HAVE_LIBZSTD],[test "x$LIBZSTD_LIBS" != "x"])
1343 dnl Check for libguestfs (only for the guestfs plugin and parts of
1344 dnl the test suite).
1345 AC_ARG_WITH([libguestfs],
1346     [AS_HELP_STRING([--without-libguestfs],
1347                     [disable guestfs plugin and tests @<:@default=check@:>@])],
1348     [],
1349     [with_libguestfs=check])
1350 AS_IF([test "$with_libguestfs" != "no"],[
1351     PKG_CHECK_MODULES([LIBGUESTFS], [libguestfs],[
1352         # Although the library was found, we want to make sure it supports nbd
1353         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1354 #include <guestfs.h>
1355         ]], [[
1356 #ifndef GUESTFS_ADD_DRIVE_OPTS_PROTOCOL
1357 #error unsupported
1358 #endif
1359         ]])], [
1360         AC_SUBST([LIBGUESTFS_CFLAGS])
1361         AC_SUBST([LIBGUESTFS_LIBS])
1362         AC_DEFINE([HAVE_LIBGUESTFS],[1],[libguestfs found at compile time.])
1363         ],[
1364         LIBGUESTFS_LIBS=
1365         AC_MSG_WARN([libguestfs too old, guestfs plugin and tests will be disabled])])
1366     ],
1367     [AC_MSG_WARN([libguestfs not found, guestfs plugin and tests will be disabled])])
1369 AM_CONDITIONAL([HAVE_LIBGUESTFS],[test "x$LIBGUESTFS_LIBS" != "x"])
1371 dnl Disable tests which need libguestfs.
1372 AC_ARG_ENABLE([libguestfs-tests],
1373     [AS_HELP_STRING([--disable-libguestfs-tests],
1374                     [disable tests which need libguestfs])],
1375     [],
1376     [enable_libguestfs_tests=check]
1378 AM_CONDITIONAL([USE_LIBGUESTFS_FOR_TESTS],
1379                [test "x$LIBGUESTFS_LIBS" != "x" && \
1380                 test "x$enable_libguestfs_tests" != "xno"])
1382 dnl Check for ext2fs and com_err, for the ext2 filter.
1383 AC_ARG_WITH([ext2],
1384     [AS_HELP_STRING([--without-ext2],
1385                     [disable ext2 filter @<:@default=check@:>@])],
1386     [],
1387     [with_ext2=check])
1388 AS_IF([test "$with_ext2" != "no"], [
1389     PKG_CHECK_MODULES([EXT2FS], [ext2fs], [
1390         AC_SUBST([EXT2FS_CFLAGS])
1391         AC_SUBST([EXT2FS_LIBS])
1392         AC_DEFINE([HAVE_EXT2FS],[1],[ext2fs found at compile time.])
1393     ],
1394     [AC_MSG_WARN([ext2fs not found, ext2 filter will be disabled])])
1395     PKG_CHECK_MODULES([COM_ERR], [com_err], [
1396         AC_SUBST([COM_ERR_CFLAGS])
1397         AC_SUBST([COM_ERR_LIBS])
1398         AC_DEFINE([HAVE_COM_ERR],[1],[com_err found at compile time.])
1399     ],
1400     [AC_MSG_WARN([com_err not found, ext2 filter will be disabled])])
1402     AC_CHECK_MEMBERS([struct struct_io_manager.cache_readahead,
1403                       struct struct_io_manager.zeroout])
1405 AM_CONDITIONAL([HAVE_EXT2],
1406                [test "x$EXT2FS_LIBS" != "x" && test "x$COM_ERR_LIBS" != "x"])
1408 dnl libtorrent-rasterbar for the bittorrent plugin.
1409 AC_ARG_ENABLE([torrent],
1410     [AS_HELP_STRING([--disable-torrent],
1411                     [disable bittorrent plugin])],
1412     [],
1413     [enable_torrent=check]
1415 AS_IF([test "x$enable_torrent" != "xno"], [
1416     PKG_CHECK_MODULES([LIBTORRENT], [libtorrent-rasterbar], [
1417         AC_SUBST([LIBTORRENT_CFLAGS])
1418         AC_SUBST([LIBTORRENT_LIBS])
1419     ],
1420     [AC_MSG_WARN([libtorrent-rasterbar not found, bittorrent plugin will be disabled])])
1422 AM_CONDITIONAL([HAVE_TORRENT],
1423                [test "x$have_cxx" = "xyes" && test "x$LIBTORRENT_LIBS" != "x"])
1425 dnl Check if the user wants to disable VDDK support.
1426 dnl See plugins/vddk/README.VDDK.
1427 AC_ARG_ENABLE([vddk],
1428     [AS_HELP_STRING([--disable-vddk],
1429                     [disable VMware VDDK plugin])],
1430     [],
1431     [
1432      dnl While VDDK was available on i686 in 5.1.1, we only support
1433      dnl newer versions which are supported only on x86-64.  Don't
1434      dnl compile on other platforms.
1435      AC_MSG_CHECKING([if the host CPU is compatible with VDDK])
1436      AS_IF([test "$host_cpu" = "x86_64" && test "$host_os" = "linux-gnu"],[
1437         AC_MSG_RESULT([yes ($host)])
1438         enable_vddk=yes
1439      ],[
1440         AC_MSG_RESULT([no ($host)])
1441         enable_vddk=no
1442      ])
1443     ])
1444 AM_CONDITIONAL([HAVE_VDDK], [test "x$enable_vddk" = "xyes"])
1446 dnl Expose version information to the public headers
1447 [NBDKIT_]VERSION_MAJOR=NBDKIT_VERSION_MAJOR
1448 [NBDKIT_]VERSION_MINOR=NBDKIT_VERSION_MINOR
1449 [NBDKIT_]VERSION_MICRO=NBDKIT_VERSION_MICRO
1450 AC_SUBST([NBDKIT_VERSION_MAJOR])
1451 AC_SUBST([NBDKIT_VERSION_MINOR])
1452 AC_SUBST([NBDKIT_VERSION_MICRO])
1454 dnl Produce output files.
1455 AC_CONFIG_HEADERS([config.h])
1456 AC_CONFIG_FILES([podwrapper.pl],
1457                 [chmod +x,-w podwrapper.pl])
1458 AC_CONFIG_FILES([common/protocol/generate-protostrings.sh],
1459                 [chmod +x,-w common/protocol/generate-protostrings.sh])
1460 AC_CONFIG_FILES([tests/make-pki.sh],
1461                 [chmod +x,-w tests/make-pki.sh])
1462 AC_CONFIG_FILES([Makefile
1463                  bash-completion/Makefile
1464                  common/allocators/Makefile
1465                  common/bitmap/Makefile
1466                  common/gpt/Makefile
1467                  common/include/Makefile
1468                  common/protocol/Makefile
1469                  common/regions/Makefile
1470                  common/replacements/Makefile
1471                  common/replacements/win32/Makefile
1472                  common/utils/Makefile
1473                  docs/Makefile
1474                  include/Makefile
1475                  include/nbdkit-version.h
1476                  plugins/Makefile
1477                  plugins/blkio/Makefile
1478                  plugins/cc/Makefile
1479                  plugins/cdi/Makefile
1480                  plugins/curl/Makefile
1481                  plugins/data/Makefile
1482                  plugins/eval/Makefile
1483                  plugins/example1/Makefile
1484                  plugins/example2/Makefile
1485                  plugins/example3/Makefile
1486                  plugins/example4/Makefile
1487                  plugins/file/Makefile
1488                  plugins/floppy/Makefile
1489                  plugins/full/Makefile
1490                  plugins/golang/Makefile
1491                  plugins/guestfs/Makefile
1492                  plugins/info/Makefile
1493                  plugins/iso/Makefile
1494                  plugins/libvirt/Makefile
1495                  plugins/linuxdisk/Makefile
1496                  plugins/lua/Makefile
1497                  plugins/memory/Makefile
1498                  plugins/nbd/Makefile
1499                  plugins/null/Makefile
1500                  plugins/ocaml/Makefile
1501                  plugins/ondemand/Makefile
1502                  plugins/partitioning/Makefile
1503                  plugins/pattern/Makefile
1504                  plugins/perl/Makefile
1505                  plugins/python/Makefile
1506                  plugins/random/Makefile
1507                  plugins/ruby/Makefile
1508                  plugins/rust/Makefile
1509                  plugins/S3/Makefile
1510                  plugins/sh/Makefile
1511                  plugins/ssh/Makefile
1512                  plugins/sparse-random/Makefile
1513                  plugins/split/Makefile
1514                  plugins/tcl/Makefile
1515                  plugins/tmpdisk/Makefile
1516                  plugins/torrent/Makefile
1517                  plugins/vddk/Makefile
1518                  plugins/zero/Makefile
1519                  filters/Makefile
1520                  filters/blocksize/Makefile
1521                  filters/blocksize-policy/Makefile
1522                  filters/cache/Makefile
1523                  filters/cacheextents/Makefile
1524                  filters/checkwrite/Makefile
1525                  filters/cow/Makefile
1526                  filters/ddrescue/Makefile
1527                  filters/delay/Makefile
1528                  filters/error/Makefile
1529                  filters/exitlast/Makefile
1530                  filters/exitwhen/Makefile
1531                  filters/exportname/Makefile
1532                  filters/ext2/Makefile
1533                  filters/extentlist/Makefile
1534                  filters/fua/Makefile
1535                  filters/gzip/Makefile
1536                  filters/ip/Makefile
1537                  filters/limit/Makefile
1538                  filters/log/Makefile
1539                  filters/luks/Makefile
1540                  filters/multi-conn/Makefile
1541                  filters/nocache/Makefile
1542                  filters/noextents/Makefile
1543                  filters/nofilter/Makefile
1544                  filters/noparallel/Makefile
1545                  filters/nozero/Makefile
1546                  filters/offset/Makefile
1547                  filters/partition/Makefile
1548                  filters/pause/Makefile
1549                  filters/protect/Makefile
1550                  filters/rate/Makefile
1551                  filters/readahead/Makefile
1552                  filters/retry/Makefile
1553                  filters/retry-request/Makefile
1554                  filters/scan/Makefile
1555                  filters/stats/Makefile
1556                  filters/swab/Makefile
1557                  filters/tar/Makefile
1558                  filters/tls-fallback/Makefile
1559                  filters/truncate/Makefile
1560                  filters/xz/Makefile
1561                  fuzzing/Makefile
1562                  server/local/nbdkit.pc
1563                  server/Makefile
1564                  server/nbdkit.pc
1565                  tests/functions.sh
1566                  tests/Makefile
1567                  valgrind/Makefile])
1569 AC_OUTPUT
1571 dnl Summary.
1572 echo
1573 echo
1574 echo "----------------------------------------------------------------------"
1575 echo "Thank you for downloading $PACKAGE_STRING"
1576 echo
1577 echo "This is how we have configured the optional components for you today:"
1578 echo
1580 print ()
1582     printf '    %.40s %s\n' \
1583         "$1 ........................................" "$2"
1586 feature ()
1588     feat="$1"
1589     shift
1590     if "$@"; then
1591         print "$feat" "yes"
1592     else
1593         print "$feat" "no"
1594     fi
1597 echo "Optional server features:"
1598 echo
1599 feature "bash-completion"     test "x$HAVE_BASH_COMPLETION_TRUE" = "x"
1600 feature "libfuzzer"           test "x$ENABLE_LIBFUZZER_TRUE" = "x"
1601 feature "linker script"       test "x$USE_LINKER_SCRIPT" = "x"
1602 feature "manual pages"        test "x$HAVE_POD_TRUE" = "x"
1603 feature "SELinux"             test "x$LIBSELINUX_LIBS" != "x"
1604 feature "TLS"                 test "x$GNUTLS_LIBS" != "x"
1606 echo
1607 echo "Optional plugins:"
1608 echo
1609 feature "blkio"               test "x$HAVE_LIBBLKIO_TRUE" = "x"
1610 feature "curl"                test "x$HAVE_CURL_TRUE" = "x"
1611 feature "example4"            test "x$HAVE_PERL_TRUE" = "x"
1612 feature "floppy"              test "x$HAVE_ICONV_TRUE" = "x"
1613 feature "guestfs"             test "x$HAVE_LIBGUESTFS_TRUE" = "x"
1614 feature "iso"                 test "x$HAVE_ISO_TRUE" = "x"
1615 feature "libvirt"             test "x$HAVE_LIBVIRT_TRUE" = "x"
1616 feature "linuxdisk"           test "x$HAVE_MKE2FS_WITH_D_TRUE" = "x"
1617 feature "nbd"                 test "x$HAVE_LIBNBD_TRUE" = "x"
1618 feature "S3"                  test "x$HAVE_PYTHON_TRUE" = "x"
1619 feature "ssh"                 test "x$HAVE_SSH_TRUE" = "x"
1620 feature "torrent"             test "x$HAVE_TORRENT_TRUE" = "x"
1621 feature "vddk"                test "x$HAVE_VDDK_TRUE" = "x"
1623 echo
1624 echo "Languages:"
1625 echo
1626 feature "go"                  test "x$HAVE_GOLANG_TRUE" = "x"
1627 feature "lua"                 test "x$HAVE_LUA_TRUE" = "x"
1628 feature "ocaml"               test "x$HAVE_OCAML_TRUE" = "x"
1629 feature "perl"                test "x$HAVE_PERL_TRUE" = "x"
1630 feature "python"              test "x$HAVE_PYTHON_TRUE" = "x"
1631 feature "ruby"                test "x$HAVE_RUBY_TRUE" = "x"
1632 feature "rust"                test "x$HAVE_RUST_TRUE" = "x"
1633 feature "tcl"                 test "x$HAVE_TCL_TRUE" = "x"
1635 echo
1636 echo "Optional filters:"
1637 echo
1638 feature "ext2"                test "x$HAVE_EXT2_TRUE" = "x"
1639 feature "gzip"                test "x$HAVE_ZLIB_TRUE" = "x"
1640 feature "luks"                test "x$HAVE_GNUTLS_PBKDF2_TRUE" = "x"
1641 feature "stats"               test "x$HAVE_CXX_TRUE" = "x"
1642 feature "xz"                  test "x$HAVE_LIBLZMA_TRUE" = "x"
1644 echo
1645 echo "Other optional features:"
1646 echo
1647 feature "allocator=zstd"      test "x$HAVE_LIBZSTD_TRUE" = "x"
1648 feature "tests using libguestfs" \
1649                               test "x$HAVE_LIBGUESTFS_TRUE" = "x" -a \
1650                                    "x$USE_LIBGUESTFS_FOR_TESTS_TRUE" = "x"
1652 echo
1653 echo "If any optional component is configured ‘no’ when you expected ‘yes’"
1654 echo "then you should check the preceding messages and README."
1655 echo
1656 echo "Please report bugs back to the mailing list:"
1657 echo "http://www.redhat.com/mailman/listinfo/libguestfs"
1658 echo
1659 echo "Next you should type 'make' to build the package,"
1660 echo "then 'make check' to run the tests."