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1 ##
2 ## This file is part of the libsigrok project.
3 ##
4 ## Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
5 ## Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
6 ##
7 ## This program 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 ## This program 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
21 # We require at least autoconf 2.63 (AC_INIT format changed there).
22 AC_PREREQ([2.63])
23
24 AC_INIT([libsigrok], [0.4.0],
25         [sigrok-devel@lists.sourceforge.net],
26         [libsigrok], [http://www.sigrok.org])
27 AC_CONFIG_MACRO_DIR([m4])
28 AC_CONFIG_AUX_DIR([autostuff])
29 AC_CONFIG_HEADERS([config.h include/libsigrok/version.h])
30
31 # We require at least automake 1.11 (needed for 'silent rules').
32 AM_INIT_AUTOMAKE([1.11 -Wall -Werror no-define nostdinc subdir-objects check-news color-tests])
33 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
34 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
35
36 AH_TOP([#ifndef SR_CONFIG_H
37 #define SR_CONFIG_H    /* To stop multiple inclusions. */])
38 AH_BOTTOM([#endif /* SR_CONFIG_H */])
39
40 # Checks for programs.
41 AC_PROG_CC
42 AC_PROG_CPP
43 AC_PROG_CXX
44 AC_PROG_INSTALL
45 AC_PROG_LN_S
46
47 # Required for per-target flags or subdir-objects with C sources.
48 AM_PROG_CC_C_O
49
50 # Initialize libtool.
51 LT_INIT
52
53 # Set up the libsigrok version defines.
54 SR_PKG_VERSION_SET([SR_PACKAGE_VERSION], [AC_PACKAGE_VERSION])
55
56 # Library version for libsigrok (NOT the same as the package version).
57 # Carefully read the libtool docs before updating these numbers!
58 # The algorithm for determining which number to change (and how) is nontrivial!
59 # http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
60 SR_LIB_VERSION_SET([SR_LIB_VERSION], [2:0:0])
61
62 #############################
63 ##  Optional dependencies  ##
64 #############################
65
66 # Initialize pkg-config.
67 # We require at least 0.22, as "Requires.private" behaviour changed there.
68 PKG_PROG_PKG_CONFIG([0.22])
69
70 # Keep track of all checked modules so we can list them at the end.
71 SR_PKG_CHECK_SUMMARY([sr_pkglibs_summary])
72
73 # Collect the pkg-config module names of all dependencies in SR_PKGLIBS.
74 # These are used to derive the compiler flags and for the "Requires.private"
75 # field in the generated libsigrok.pc file.
76 SR_VAR_OPT_PKG([SR_PKGLIBS], [sr_deps_avail])
77 SR_PKGLIBS_CHECK=
78 SR_PKGLIBS_CXX=
79 SR_PKGLIBS_PYTHON=
80
81 SR_ARG_OPT_PKG([libserialport], [LIBSERIALPORT], [NEED_SERIAL],
82         [libserialport >= 0.1.1])
83
84 SR_ARG_OPT_PKG([libftdi], [LIBFTDI],,
85         [libftdi >= 0.16], [libftdi1 >= 1.0])
86
87 # FreeBSD comes with an "integrated" libusb-1.0-style USB API.
88 # This means libusb-1.0 is always available; no need to check for it.
89 AS_CASE([$host], [*freebsd*], [sr_have_libusb=yes])
90
91 SR_ARG_OPT_PKG([libusb], [LIBUSB_1_0], [NEED_USB],
92         [libusb-1.0 >= 1.0.16])
93
94 SR_ARG_OPT_PKG([librevisa], [LIBREVISA], [NEED_VISA],
95         [librevisa >= 0.0.20130412])
96
97 SR_ARG_OPT_PKG([libgpib], [LIBGPIB], [NEED_GPIB],
98         [libgpib])
99
100 ######################
101 ##  Feature checks  ##
102 ######################
103
104 # The Check unit testing framework is optional. Disable if not found.
105 SR_PKG_CHECK([check], [SR_PKGLIBS_CHECK], [check >= 0.9.4])
106 AM_CONDITIONAL([HAVE_CHECK], [test "x$sr_have_check" = xyes])
107
108 AC_LANG([C])
109
110 # Enable the C11 standard if possible, and enforce the use
111 # of SR_API to explicitly mark all public API functions.
112 SR_EXTRA_CFLAGS=
113 SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [C11], [-std=gnu11 -std=c11])
114 SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden])
115
116 SR_ARG_ENABLE_WARNINGS([SR_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes])
117
118 # Check host characteristics.
119 AC_C_BIGENDIAN
120
121 AC_CHECK_HEADERS([sys/mman.h], [SR_APPEND([sr_deps_avail], [sys_mman_h])])
122 AC_CHECK_HEADERS([sys/ioctl.h], [SR_APPEND([sr_deps_avail], [sys_ioctl_h])])
123 AC_CHECK_HEADERS([sys/timerfd.h], [SR_APPEND([sr_deps_avail], [sys_timerfd_h])])
124
125 # RPC is only needed for VXI support.
126 AC_CACHE_CHECK([for RPC support], [sr_cv_have_rpc],
127         [AC_LINK_IFELSE([AC_LANG_PROGRAM(
128                         [[#include <rpc/rpc.h>]m4_newline[CLIENT *rpc_test(void);]],
129                         [[(void) clnt_create("", 0, 0, "");]])],
130                 [sr_cv_have_rpc=yes], [sr_cv_have_rpc=no])])
131 AS_IF([test "x$sr_cv_have_rpc" = xyes],
132         [AC_DEFINE([HAVE_RPC], [1], [Specifies whether we have RPC support.])])
133 # VXI support is only compiled if RPC support was found.
134 AM_CONDITIONAL([NEED_RPC], [test "x$sr_cv_have_rpc" = xyes])
135
136 ########################
137 ##  Hardware drivers  ##
138 ########################
139
140 # Keep track of all drivers so we can list them at the end.
141 SR_VAR_SUMMARY([sr_driver_summary])
142
143 # Check whether the sr_deps_avail list contains all of the arguments.
144 # Unavailable dependencies are collected in sr_deps_missing.
145 sr_check_driver_deps() {
146         sr_deps_missing=
147         for sr_dep
148         do
149                 AS_CASE([" $sr_deps_avail "], [*" $sr_dep "*],,
150                         [SR_APPEND([sr_deps_missing], [', '], [$sr_dep])])
151         done
152 }
153
154 AC_ARG_ENABLE([all-drivers],
155         [AS_HELP_STRING([--enable-all-drivers],
156                         [enable all drivers by default [default=yes]])],
157         [], [enable_all_drivers=yes])
158
159 ## _SR_DRIVER(Device name, driver-name, var-name, [dependencies...])
160 m4_define([_SR_DRIVER], [
161         AC_ARG_ENABLE([$2],
162                 [AS_HELP_STRING([--enable-$2], [enable $1 support])],
163                 [$3=$enableval], [$3=$enable_all_drivers])
164
165         AS_IF([test "x[$]$3" = xyes], [sr_hw_info=yes[]m4_ifval([$4], [
166                 sr_check_driver_deps $4
167                 AS_IF([test -n "$sr_deps_missing"],
168                         [$3=no sr_hw_info="no (missing: $sr_deps_missing)"])
169         ])], [sr_hw_info='no (disabled)'])
170         sr_driver_summary_append "$2" "$sr_hw_info"
171
172         AM_CONDITIONAL([$3], [test "x[$]$3" = xyes])
173         AM_COND_IF([$3], [AC_DEFINE([HAVE_$3], [1], [Whether to support $1 device.])])
174 ])
175
176 ## SR_DRIVER(Device name, driver-name, [dependencies...])
177 m4_define([SR_DRIVER],
178         [_SR_DRIVER([$1], [$2], m4_expand([AS_TR_CPP([HW_$2])]), [$3])])
179
180 SR_DRIVER([Agilent DMM], [agilent-dmm], [libserialport])
181 SR_DRIVER([Appa 55II], [appa-55ii], [libserialport])
182 SR_DRIVER([ASIX SIGMA/SIGMA2], [asix-sigma], [libftdi])
183 SR_DRIVER([Atten PPS3xxx], [atten-pps3xxx], [libserialport])
184 SR_DRIVER([BayLibre ACME], [baylibre-acme], [sys_timerfd_h])
185 SR_DRIVER([BeagleLogic], [beaglelogic], [sys_mman_h sys_ioctl_h])
186 SR_DRIVER([Brymen BM86x], [brymen-bm86x], [libusb])
187 SR_DRIVER([Brymen DMM], [brymen-dmm], [libserialport])
188 SR_DRIVER([CEM DT-885x], [cem-dt-885x], [libserialport])
189 SR_DRIVER([Center 3xx], [center-3xx], [libserialport])
190 SR_DRIVER([ChronoVu LA], [chronovu-la], [libftdi])
191 SR_DRIVER([Colead SLM], [colead-slm], [libserialport])
192 SR_DRIVER([Conrad DIGI 35 CPU], [conrad-digi-35-cpu], [libserialport])
193 SR_DRIVER([DER EE DE-5000], [deree-de5000], [libserialport])
194 SR_DRIVER([demo], [demo])
195 SR_DRIVER([Fluke DMM], [fluke-dmm], [libserialport])
196 SR_DRIVER([fx2lafw], [fx2lafw], [libusb])
197 SR_DRIVER([GMC MH 1x/2x], [gmc-mh-1x-2x], [libserialport])
198 SR_DRIVER([Hameg HMO], [hameg-hmo], [libserialport])
199 SR_DRIVER([Hantek DSO], [hantek-dso], [libusb])
200 SR_DRIVER([Ikalogic Scanalogic-2], [ikalogic-scanalogic2], [libusb])
201 SR_DRIVER([Ikalogic Scanaplus], [ikalogic-scanaplus], [libftdi])
202 SR_DRIVER([Kecheng KC-330B], [kecheng-kc-330b], [libusb])
203 SR_DRIVER([Lascar EL-USB], [lascar-el-usb], [libusb])
204 SR_DRIVER([Manson HCS-3xxx], [manson-hcs-3xxx], [libserialport])
205 SR_DRIVER([maynuo-m97], [maynuo-m97])
206 SR_DRIVER([MIC 985xx], [mic-985xx], [libserialport])
207 SR_DRIVER([Motech LPS 30x], [motech-lps-30x], [libserialport])
208 SR_DRIVER([Norma DMM], [norma-dmm], [libserialport])
209 SR_DRIVER([OpenBench Logic Sniffer], [openbench-logic-sniffer], [libserialport])
210 SR_DRIVER([Pipistrello-OLS], [pipistrello-ols], [libftdi])
211 SR_DRIVER([Rigol DS], [rigol-ds])
212 SR_DRIVER([Saleae Logic16], [saleae-logic16], [libusb])
213 SR_DRIVER([SCPI PPS], [scpi-pps])
214 SR_DRIVER([serial DMM], [serial-dmm], [libserialport])
215 SR_DRIVER([Sysclk LWLA], [sysclk-lwla], [libusb])
216 SR_DRIVER([Teleinfo], [teleinfo], [libserialport])
217 SR_DRIVER([Testo], [testo], [libusb])
218 SR_DRIVER([Tondaj SL-814], [tondaj-sl-814], [libserialport])
219 SR_DRIVER([UNI-T DMM], [uni-t-dmm], [libusb])
220 SR_DRIVER([UNI-T UT32x], [uni-t-ut32x], [libusb])
221 SR_DRIVER([Victor DMM], [victor-dmm], [libusb])
222 SR_DRIVER([Yokogawa DL/DLM], [yokogawa-dlm])
223 SR_DRIVER([ZEROPLUS Logic Cube], [zeroplus-logic-cube], [libusb])
224
225 ###############################
226 ##  Language bindings setup  ##
227 ###############################
228
229 AC_LANG([C++])
230 SR_ARG_ENABLE_WARNINGS([SR_WXXFLAGS], [-Wall], [-Wall -Wextra])
231
232 AC_ARG_ENABLE([bindings],
233         [AS_HELP_STRING([--enable-bindings], [build language bindings [default=yes]])],
234         [], [enable_bindings=yes])
235
236 AC_ARG_ENABLE([cxx],
237         [AS_HELP_STRING([--enable-cxx], [build C++ bindings [default=yes]])],
238         [], [enable_cxx=$enable_bindings])
239
240 AC_ARG_ENABLE([python],
241         [AS_HELP_STRING([--enable-python], [build Python bindings [default=yes]])],
242         [], [enable_python=$enable_bindings])
243
244 AC_ARG_ENABLE([java],
245         [AS_HELP_STRING([--enable-java], [build Java bindings [default=yes]])],
246         [], [enable_java=$enable_bindings])
247
248 ####################
249 ##  C++ bindings  ##
250 ####################
251
252 sr_cxx_missing=
253
254 # Check if the C++ compiler supports the C++11 standard.
255 m4_ifdef([AX_CXX_COMPILE_STDCXX_11],
256         [AX_CXX_COMPILE_STDCXX_11(, [optional])],
257         [m4_warn([unsupported], [Missing macro AX_CXX_COMPILE_STDCXX_11: no C++11 check possible])])
258 AS_IF([test "x$HAVE_CXX11" != x1],
259         [SR_APPEND([sr_cxx_missing], [', '], ['C++11'])])
260
261 # The C++ bindings need glibmm.
262 SR_PKG_CHECK([glibmm], [SR_PKGLIBS_CXX], [glibmm-2.4 >= 2.32.0])
263 AS_IF([test "x$sr_have_glibmm" != xyes],
264         [SR_APPEND([sr_cxx_missing], [', '], [glibmm])])
265
266 # The C++ bindings use Doxygen to parse libsigrok symbols.
267 AC_CHECK_PROG([HAVE_DOXYGEN], [doxygen], [yes], [no])
268 AS_IF([test "x$HAVE_DOXYGEN" != xyes],
269         [SR_APPEND([sr_cxx_missing], [', '], [Doxygen])])
270
271 # Python is needed for the C++ bindings.
272 AM_PATH_PYTHON([2.7],
273         [HAVE_PYTHON=yes],
274         [HAVE_PYTHON=no
275         SR_APPEND([sr_cxx_missing], [', '], [Python])])
276
277 AS_IF([test -z "$sr_cxx_missing"],
278         [BINDINGS_CXX=$enable_cxx], [BINDINGS_CXX=no])
279 AM_CONDITIONAL([BINDINGS_CXX], [test "x$BINDINGS_CXX" = xyes])
280
281 # C++ bindings want stoi and stod.
282 AM_COND_IF([BINDINGS_CXX], [
283         AC_CACHE_CHECK([for stoi and stod], [sr_cv_have_stoi_stod],
284                 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <string>]],
285                                 [[(void) std::stoi("1"); (void) std::stod("1.0");]])],
286                         [sr_cv_have_stoi_stod=yes], [sr_cv_have_stoi_stod=no])])
287         AS_IF([test "x$sr_cv_have_stoi_stod" = xyes],
288                 [AC_DEFINE([HAVE_STOI_STOD], [1],
289                         [Specifies whether we have the stoi and stod functions.])])
290 ])
291
292 #######################
293 ##  Python bindings  ##
294 #######################
295
296 AS_IF([test "x$BINDINGS_CXX" = xyes],
297         [sr_python_missing=],
298         [sr_python_missing='C++ bindings'])
299
300 # The Python bindings need Python development files.
301 SR_PKG_CHECK([python_dev], [SR_PKGLIBS_PYTHON],
302         [python >= 2.7], [python2 >= 2.7], [python27 >= 2.7])
303 AS_IF([test "x$sr_have_python_dev" != xyes],
304         [SR_APPEND([sr_python_missing], [', '], [Headers])])
305
306 # PyGObject is needed for the Python bindings.
307 SR_PKG_CHECK([pygobject], [SR_PKGLIBS_PYTHON], [pygobject-3.0 >= 3.0.0])
308 AS_IF([test "x$sr_have_pygobject" != xyes],
309         [SR_APPEND([sr_python_missing], [', '], [PyGObject])])
310
311 PKG_CHECK_EXISTS([pygobject-3.0 < 3.7.91],
312         [AC_DEFINE([PYGOBJECT_FLAGS_SIGNED], [1],
313                 [Whether last argument to pyg_flags_get_value() is signed.])])
314
315 # The Python bindings need the setuptools Python module.
316 # We'll let it go through even if the AX macro wasn't found,
317 # as the Python module may still be there.
318 HAVE_PYMOD_SETUPTOOLS=yes
319 m4_ifdef([AX_PYTHON_MODULE],
320         [AX_PYTHON_MODULE([setuptools])],
321         [m4_warn([unsupported], [Missing macro AX_PYTHON_MODULE: no setuptools check])])
322 AS_IF([test "x$HAVE_PYMOD_SETUPTOOLS" != xyes],
323         [SR_APPEND([sr_python_missing], [', '], [setuptools])])
324
325 # The Python bindings use SWIG to generate code.
326 AC_CHECK_PROGS([SWIG], [swig swig2.0 swig3.0])
327 AS_IF([test "x$SWIG" = x],
328         [SR_APPEND([sr_python_missing], [', '], [SWIG])])
329
330 AS_IF([test -z "$sr_python_missing"],
331         [BINDINGS_PYTHON=$enable_python], [BINDINGS_PYTHON=no])
332 AM_CONDITIONAL([BINDINGS_PYTHON], [test "x$BINDINGS_PYTHON" = xyes])
333
334 ####################
335 ##  Java bindings ##
336 ####################
337
338 AS_IF([test "x$BINDINGS_CXX" = xyes],
339         [sr_java_missing=],
340         [sr_java_missing='C++ bindings'])
341
342 # The Java bindings use SWIG to generate code.
343 AS_IF([test "x$SWIG" = x],
344         [SR_APPEND([sr_java_missing], [', '], [SWIG])])
345
346 # Find Java compiler and JNI includes for Java bindings.
347 AC_CHECK_PROG([HAVE_JAVAC], [javac], [yes], [no])
348 AS_IF([test "x$HAVE_JAVAC" = xno],
349         [SR_APPEND([sr_java_missing], [', '], [JavaC])])
350
351 AC_ARG_WITH([jni-include-path],
352         [AS_HELP_STRING([[--with-jni-include-path=DIR-LIST (space-separated)]],
353                 [specify JNI include directories [default=detect]])],
354         [JNI_INCLUDE_DIRS=" $withval"], [JNI_INCLUDE_DIRS=])
355
356 JNI_CPPFLAGS=
357 AS_IF([test "x$enable_java$HAVE_JAVAC" = xyesyes], [
358         AX_PROG_JAVAC
359         AS_IF([test -z "$JNI_INCLUDE_DIRS" && test "x$cross_compiling" != xyes], [
360                 ## Work around the totally broken logic in AX_JNI_INCLUDE_DIR:
361                 ## If we can find jni.h without any special search path, skip
362                 ## the execution of the broken macro to increase our chances of
363                 ## success.
364                 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <jni.h>]], [])],,
365                         [AX_JNI_INCLUDE_DIR])
366         ])
367 ])
368 for sr_dir in $JNI_INCLUDE_DIRS
369 do
370         SR_APPEND([JNI_CPPFLAGS], ["-I$sr_dir"])
371 done
372 AC_SUBST([JNI_CPPFLAGS])
373
374 sr_save_cppflags=$CPPFLAGS
375 SR_APPEND([CPPFLAGS], [$JNI_CPPFLAGS])
376 AC_CHECK_HEADER([jni.h],,
377         [SR_APPEND([sr_java_missing], [', '], ['JNI headers'])])
378 CPPFLAGS=$sr_save_cppflags
379
380 AS_IF([test -z "$sr_java_missing"],
381         [BINDINGS_JAVA=$enable_java], [BINDINGS_JAVA=no])
382 AM_CONDITIONAL([BINDINGS_JAVA], [test "x$BINDINGS_JAVA" = xyes])
383
384 ##############################
385 ##  Finalize configuration  ##
386 ##############################
387
388 # Add mandatory dependencies to module list.
389 SR_APPEND([SR_PKGLIBS], ['libzip >= 0.10'])
390 AC_SUBST([SR_PKGLIBS])
391
392 # Retrieve the compile and link flags for all modules combined.
393 # Also, bail out at this point if any module dependency is not met.
394 PKG_CHECK_MODULES([LIBSIGROK], [glib-2.0 >= 2.32.0 $SR_PKGLIBS])
395 PKG_CHECK_MODULES([CHECK], [$SR_PKGLIBS_CHECK glib-2.0 $SR_PKGLIBS])
396
397 # SR_PKGLIBS_CXX may be empty, so only invoke these checks when
398 # the C++ bindings are enabled.
399 AM_COND_IF([BINDINGS_CXX], [
400         PKG_CHECK_MODULES([LIBSIGROKCXX], [$SR_PKGLIBS_CXX])
401         PKG_CHECK_MODULES([PYSIGROK], [$SR_PKGLIBS_PYTHON $SR_PKGLIBS_CXX])
402 ])
403 sr_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD`
404 sr_libzip_version=`$PKG_CONFIG --modversion libzip 2>&AS_MESSAGE_LOG_FD`
405
406 AC_DEFINE_UNQUOTED([CONF_LIBZIP_VERSION], ["$sr_libzip_version"],
407         [Build-time version of libzip.])
408 AC_DEFINE_UNQUOTED([CONF_HOST], ["$host"],
409         [The canonical host libsigrok will run on.])
410
411 AC_LANG([C])
412
413 # libm (the standard math library) is always needed.
414 AC_SEARCH_LIBS([pow], [m])
415
416 # We need to link against the Winsock2 library for SCPI over TCP.
417 AS_CASE([$host], [*mingw*], [LIBS="$LIBS -lws2_32"])
418
419 AC_SUBST([FIRMWARE_DIR], ['$(datadir)/sigrok-firmware'])
420 AC_SUBST([MAKEFLAGS], ['--no-print-directory'])
421 AC_SUBST([AM_LIBTOOLFLAGS], ['--silent'])
422
423 AC_CONFIG_FILES([Makefile libsigrok.pc bindings/cxx/libsigrokcxx.pc])
424
425 AC_OUTPUT
426
427 # Prepare bindings report messages.
428 m4_define([SR_PREPARE_BINDING_REPORT], [
429         sr_report_$1=
430         test -z "$sr_$1_missing" || sr_report_$1=" (missing: $sr_$1_missing)"
431         test "x$enable_$1" = xyes || sr_report_$1=' (disabled)'
432 ])
433 m4_map_args([SR_PREPARE_BINDING_REPORT], [cxx], [python], [java])
434
435 cat >&AS_MESSAGE_FD <<_EOF
436
437 libsigrok configuration summary:
438  - Package version................. $SR_PACKAGE_VERSION
439  - Library ABI version............. $SR_LIB_VERSION
440  - Prefix.......................... $prefix
441  - Building on..................... $build
442  - Building for.................... $host
443  - Additional C compiler flags..... $SR_EXTRA_CFLAGS
444  - C compiler warnings............. $SR_WFLAGS
445  - C++ compiler warnings........... $SR_WXXFLAGS
446
447 Detected libraries (required):
448  - glib-2.0 >= 2.32.0.............. $sr_glib_version
449  - libzip >= 0.10.................. $sr_libzip_version
450
451 Detected libraries (optional):
452 $sr_pkglibs_summary
453 Enabled hardware drivers:
454 $sr_driver_summary
455 Enabled SCPI backends:
456  - TCP............................. yes
457  - RPC............................. $sr_cv_have_rpc
458  - serial.......................... $sr_have_libserialport
459  - VISA............................ $sr_have_librevisa
460  - GPIB............................ $sr_have_libgpib
461  - USBTMC.......................... $sr_have_libusb
462
463 Enabled language bindings:
464  - C++............................. $BINDINGS_CXX$sr_report_cxx
465  - Python.......................... $BINDINGS_PYTHON$sr_report_python
466  - Java............................ $BINDINGS_JAVA$sr_report_java
467
468 _EOF