input: decorate sr_input_find() parameter as const
[libsigrok.git] / configure.ac
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], [0.6.0],
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 AM_SILENT_RULES([yes])
34 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
35
36 AC_CANONICAL_HOST
37
38 # Checks for programs.
39 AC_PROG_CC
40 AC_PROG_CXX
41 AC_PROG_INSTALL
42 AC_PROG_LN_S
43
44 # Required for per-target flags or subdir-objects with C sources.
45 AM_PROG_CC_C_O
46
47 # Set the standard the C library headers should conform to.
48 AH_VERBATIM([_POSIX_C_SOURCE], [/* The targeted POSIX standard. */
49 #ifndef _POSIX_C_SOURCE
50 # define _POSIX_C_SOURCE 200112L
51 #endif])
52
53 # Get compiler versions.
54 SR_PROG_VERSION([$CC], [sr_cc_version])
55 SR_PROG_VERSION([$CXX], [sr_cxx_version])
56
57 # Check for optional make features.
58 SR_PROG_MAKE_ORDER_ONLY
59
60 # Initialize libtool.
61 LT_INIT
62
63 # Set up the libsigrok version defines.
64 SR_PKG_VERSION_SET([SR_PACKAGE_VERSION], [AC_PACKAGE_VERSION])
65
66 # Library version for libsigrok (NOT the same as the package version).
67 # Carefully read the libtool docs before updating these numbers!
68 # The algorithm for determining which number to change (and how) is nontrivial!
69 # http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
70 # Format: current:revision:age.
71 SR_LIB_VERSION_SET([SR_LIB_VERSION], [4:0:0])
72
73 AM_CONDITIONAL([WIN32], [test -z "${host_os##mingw*}" || test -z "${host_os##cygwin*}"])
74
75 #############################
76 ##  Optional dependencies  ##
77 #############################
78
79 AC_LANG([C])
80
81 # Initialize pkg-config.
82 # We require at least 0.22, as "Requires.private" behaviour changed there.
83 PKG_PROG_PKG_CONFIG([0.22])
84
85 # Keep track of all checked modules so we can list them at the end.
86 SR_PKG_CHECK_SUMMARY([sr_pkglibs_summary])
87
88 # Collect the pkg-config module names of all dependencies in SR_PKGLIBS.
89 # These are used to derive the compiler flags and for the "Requires.private"
90 # field in the generated libsigrok.pc file.
91 SR_VAR_OPT_PKG([SR_PKGLIBS], [sr_deps_avail])
92 SR_PKGLIBS_TESTS=
93 SR_PKGLIBS_CXX=
94 SR_PKGLIBS_PYTHON=
95 SR_PKGLIBS_RUBY=
96 SR_EXTRA_LIBS=
97 SR_EXTRA_CXX_LIBS=
98
99 SR_ARG_OPT_PKG([zlib], [ZLIB], , [zlib])
100 AM_CONDITIONAL([HAVE_ZLIB], [test "x$sr_have_zlib" = xyes])
101 AM_COND_IF([HAVE_ZLIB], [
102         SR_APPEND([sr_deps_avail], [crc32 zlib])
103         SR_PREPEND([SR_EXTRA_LIBS], [-lz])
104 ])
105
106 AM_CONDITIONAL([HAVE_INPUT_STF], [test "x$sr_have_zlib" = xyes])
107 AM_COND_IF([HAVE_INPUT_STF], [
108         AC_DEFINE([HAVE_INPUT_STF], [1], [Is the STF input module supported?])
109 ])
110
111 SR_ARG_OPT_PKG([libserialport], [LIBSERIALPORT], ,
112         [libserialport >= 0.1.1])
113
114 SR_ARG_OPT_PKG([libftdi], [LIBFTDI], , [libftdi1 >= 1.0])
115
116 # pkg-config file names: MinGW/MacOSX: hidapi; Linux: hidapi-hidraw/-libusb
117 SR_ARG_OPT_PKG([libhidapi], [LIBHIDAPI], ,
118         [hidapi >= 0.8.0], [hidapi-hidraw >= 0.8.0], [hidapi-libusb >= 0.8.0])
119
120 SR_ARG_OPT_PKG([libbluez], [LIBBLUEZ], , [bluez >= 4.0])
121
122 SR_ARG_OPT_PKG([libnettle], [LIBNETTLE], , [nettle])
123
124 # FreeBSD comes with an "integrated" libusb-1.0-style USB API.
125 # This means libusb-1.0 is always available; no need to check for it.
126 # On Windows, require the latest version we can get our hands on,
127 # until the new generic event handling has seen an official release.
128 AS_CASE([$host_os],
129         [freebsd*], [sr_libusb_req='libusb-1.0' sr_have_libusb=yes],
130         [mingw*], [sr_libusb_req='libusb-1.0 >= 1.0.20'],
131         [sr_libusb_req='libusb-1.0 >= 1.0.16'])
132
133 SR_ARG_OPT_PKG([libusb], [LIBUSB_1_0], [NEED_USB],
134         [$sr_libusb_req])
135
136 SR_ARG_OPT_PKG([librevisa], [LIBREVISA], [NEED_VISA],
137         [librevisa >= 0.0.20130412])
138
139 SR_ARG_OPT_PKG([libgpib], [LIBGPIB], [NEED_GPIB],
140         [libgpib])
141
142 SR_ARG_OPT_CHECK([libieee1284], [LIBIEEE1284],, [
143         sr_save_LIBS=$LIBS
144         LIBS="-lieee1284 $LIBS"
145         AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <ieee1284.h>]],
146                                 [[(void) ieee1284_open(0, 0, 0);]])],
147                 [sr_have_libieee1284=yes], [sr_have_libieee1284=no])
148         LIBS=$sr_save_LIBS
149 ])
150 AS_IF([test "x$sr_have_libieee1284" = xyes],
151         [SR_PREPEND([SR_EXTRA_LIBS], [-lieee1284])])
152
153 SR_ARG_OPT_PKG([libgio], [LIBGIO], , [gio-2.0 >= 2.24.0])
154
155 # See if any of the (potentially platform specific) libs are available
156 # which provide some means of Bluetooth communication.
157 AS_IF([test "x$sr_have_libbluez" = xyes],
158         sr_have_bluetooth=yes, sr_have_bluetooth=no)
159 AS_IF([test "x$sr_have_bluetooth" = xyes],
160         [AC_DEFINE([HAVE_BLUETOOTH], [1], [Specifies whether Bluetooth communication is supported.])])
161 AS_IF([test "x$sr_have_bluetooth" = xyes],
162         [SR_APPEND([sr_deps_avail], [bluetooth_comm])])
163
164 AS_IF([test "x$sr_have_libserialport" = xyes -o "x$sr_have_libhidapi" = xyes -o "x$sr_have_bluetooth" = xyes],
165         sr_have_serial_comm=yes, sr_have_serial_comm=no)
166 AS_IF([test "x$sr_have_serial_comm" = xyes],
167         [AC_DEFINE([HAVE_SERIAL_COMM], [1], [Specifies whether serial communication is supported.])])
168 AS_IF([test "x$sr_have_serial_comm" = xyes],
169         [SR_APPEND([sr_deps_avail], [serial_comm])])
170 AM_CONDITIONAL([NEED_SERIAL], [test "x$sr_have_serial_comm" = xyes])
171
172 ######################
173 ##  Feature checks  ##
174 ######################
175
176 # The Check unit testing framework is optional. Disable if not found.
177 SR_PKG_CHECK([check], [SR_PKGLIBS_TESTS], [check >= 0.9.4])
178 AM_CONDITIONAL([HAVE_CHECK], [test "x$sr_have_check" = xyes])
179
180 # Enable the C99 standard if possible, and enforce the use
181 # of SR_API to explicitly mark all public API functions.
182 SR_EXTRA_CFLAGS=
183 SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [C99], [-std=c99 -c99 -AC99 -qlanglvl=extc99])
184 SR_CHECK_COMPILE_FLAGS([SR_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden])
185
186 SR_ARG_ENABLE_WARNINGS([SR_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes])
187
188 # Check host characteristics.
189 AC_SYS_LARGEFILE
190 AC_C_BIGENDIAN
191
192 AC_CHECK_HEADERS([sys/mman.h], [SR_APPEND([sr_deps_avail], [sys_mman_h])])
193 AC_CHECK_HEADERS([sys/ioctl.h], [SR_APPEND([sr_deps_avail], [sys_ioctl_h])])
194 AC_CHECK_HEADERS([sys/timerfd.h], [SR_APPEND([sr_deps_avail], [sys_timerfd_h])])
195
196 # We need to link against the Winsock2 library for SCPI over TCP.
197 AS_CASE([$host_os], [mingw*], [SR_PREPEND([SR_EXTRA_LIBS], [-lws2_32])])
198
199 # libm (the standard math library) is always needed.
200 SR_SEARCH_LIBS([SR_EXTRA_LIBS], [pow], [m])
201
202 # RPC is only needed for VXI support.
203 AC_CACHE_CHECK([for SunRPC support], [sr_cv_have_sunrpc],
204         [AC_LINK_IFELSE([AC_LANG_PROGRAM(
205                         [[#include <rpc/rpc.h>]m4_newline[CLIENT *rpc_test(void);]],
206                         [[(void) clnt_create("", 0, 0, "");]])],
207                 [RPC_CFLAGS=""; RPC_LIBS=""; sr_cv_have_sunrpc=yes],
208                 [sr_cv_have_sunrpc=no])])
209 PKG_CHECK_MODULES([TIRPC],
210         [libtirpc],
211         [RPC_CFLAGS=$TIRPC_CFLAGS; SR_PREPEND([SR_EXTRA_LIBS], [$TIRPC_LIBS]); sr_cv_have_tirpc=yes],
212         [sr_cv_have_tirpc=no])
213 AS_IF([test "x$sr_cv_have_sunrpc" = xyes -o "x$sr_cv_have_tirpc" = xyes],
214         [sr_cv_have_rpc=yes], [sr_cv_have_rpc=no])
215
216 AC_SUBST(RPC_CFLAGS)
217 AC_SUBST(RPC_LIBS)
218
219 AS_IF([test "x$sr_cv_have_rpc" = xyes],
220         [AC_DEFINE([HAVE_RPC], [1], [Specifies whether we have RPC support (either by SunRPC or libtirpc).])])
221
222 # VXI support is only compiled if RPC support was found.
223 AM_CONDITIONAL([NEED_RPC], [test "x$sr_cv_have_rpc" = xyes])
224
225 # Check for compiler support of 128 bit integers
226 AC_CHECK_TYPES([__int128_t, __uint128_t], [], [], [])
227
228
229 #######################
230 ##  miniLZO related  ##
231 #######################
232 # These were taken from the README.LZO file in the miniLZO archive.
233
234 AC_CHECK_TYPE(ptrdiff_t,long)
235 AC_TYPE_SIZE_T
236 AC_CHECK_SIZEOF(short)
237 AC_CHECK_SIZEOF(int)
238 AC_CHECK_SIZEOF(long)
239 AC_CHECK_SIZEOF(long long)
240 AC_CHECK_SIZEOF(__int64)
241 AC_CHECK_SIZEOF(void *)
242 AC_CHECK_SIZEOF(size_t)
243 AC_CHECK_SIZEOF(ptrdiff_t)
244
245 AC_C_CONST
246
247 AC_CHECK_FUNCS(memcmp memcpy memmove memset)
248
249 ########################
250 ##  Hardware drivers  ##
251 ########################
252
253 # Keep track of all drivers so we can list them at the end.
254 SR_VAR_SUMMARY([sr_driver_summary])
255
256 # Check whether the sr_deps_avail list contains all of the arguments.
257 # Unavailable dependencies are collected in sr_deps_missing.
258 sr_check_driver_deps() {
259         sr_deps_missing=
260         for sr_dep
261         do
262                 AS_CASE([" $sr_deps_avail "], [*" $sr_dep "*],,
263                         [SR_APPEND([sr_deps_missing], [', '], [$sr_dep])])
264         done
265         test -z "$sr_deps_missing" || return 1
266 }
267
268 AC_ARG_ENABLE([all-drivers],
269         [AS_HELP_STRING([--enable-all-drivers],
270                         [enable all drivers by default [default=yes]])],
271         [], [enable_all_drivers=yes])
272
273 ## _SR_DRIVER(Device name, driver-name, var-name, [dependencies...])
274 m4_define([_SR_DRIVER], [
275         AC_ARG_ENABLE([$2],
276                 [AS_HELP_STRING([--enable-$2], [enable $1 support])],
277                 [$3=$enableval], [$3=$enable_all_drivers])
278
279         AS_IF([test "x[$]$3" = xyes], [sr_hw_info=yes[]m4_ifval([$4], [
280                 sr_check_driver_deps $4 \
281                         || $3=no sr_hw_info="no (missing: $sr_deps_missing)"
282         ])], [sr_hw_info='no (disabled)'])
283         sr_driver_summary_append "$2" "$sr_hw_info"
284
285         AM_CONDITIONAL([$3], [test "x[$]$3" = xyes])
286         AM_COND_IF([$3], [AC_DEFINE([HAVE_$3], [1], [Whether to support $1 device.]) AC_DEFINE([HAVE_DRIVERS], [1], [Whether at least one driver is enabled.])])
287 ])
288
289 ## SR_DRIVER(Device name, driver-name, [dependencies...])
290 m4_define([SR_DRIVER],
291         [_SR_DRIVER([$1], [$2], m4_expand([AS_TR_CPP([HW_$2])]), [$3])])
292
293 SR_DRIVER([Agilent DMM], [agilent-dmm], [serial_comm])
294 SR_DRIVER([Appa 55II], [appa-55ii], [serial_comm])
295 SR_DRIVER([Arachnid Labs Re:load Pro], [arachnid-labs-re-load-pro], [serial_comm])
296 SR_DRIVER([ASIX SIGMA/SIGMA2], [asix-sigma], [libftdi])
297 SR_DRIVER([ASIX OMEGA RTM CLI], [asix-omega-rtm-cli])
298 SR_DRIVER([Atten PPS3xxx], [atten-pps3xxx], [serial_comm])
299 SR_DRIVER([BayLibre ACME], [baylibre-acme], [sys_timerfd_h])
300 SR_DRIVER([BeagleLogic], [beaglelogic], [sys_mman_h sys_ioctl_h])
301 SR_DRIVER([CEM DT-885x], [cem-dt-885x], [serial_comm])
302 SR_DRIVER([Center 3xx], [center-3xx], [serial_comm])
303 SR_DRIVER([ChronoVu LA], [chronovu-la], [libusb libftdi])
304 SR_DRIVER([Colead SLM], [colead-slm], [serial_comm])
305 SR_DRIVER([Conrad DIGI 35 CPU], [conrad-digi-35-cpu], [serial_comm])
306 SR_DRIVER([dcttech usbrelay], [dcttech-usbrelay], [libhidapi])
307 SR_DRIVER([demo], [demo])
308 SR_DRIVER([DreamSourceLab DSLogic], [dreamsourcelab-dslogic], [libusb])
309 SR_DRIVER([Fluke 45], [fluke-45])
310 SR_DRIVER([Fluke DMM], [fluke-dmm], [serial_comm])
311 SR_DRIVER([FTDI LA], [ftdi-la], [libusb libftdi])
312 SR_DRIVER([fx2lafw], [fx2lafw], [libusb])
313 SR_DRIVER([GMC MH 1x/2x], [gmc-mh-1x-2x], [serial_comm])
314 SR_DRIVER([GW Instek GDS-800], [gwinstek-gds-800], [serial_comm])
315 SR_DRIVER([GW Instek GPD], [gwinstek-gpd], [serial_comm])
316 SR_DRIVER([Hameg HMO], [hameg-hmo])
317 SR_DRIVER([Hantek 4032L], [hantek-4032l], [libusb])
318 SR_DRIVER([Hantek 6xxx], [hantek-6xxx], [libusb])
319 SR_DRIVER([Hantek DSO], [hantek-dso], [libusb])
320 SR_DRIVER([HP 3457A], [hp-3457a])
321 SR_DRIVER([HP 3478A], [hp-3478a], [libgpib])
322 SR_DRIVER([hp-59306a], [hp-59306a])
323 SR_DRIVER([Hung-Chang DSO-2100], [hung-chang-dso-2100], [libieee1284])
324 SR_DRIVER([Ikalogic Scanalogic-2], [ikalogic-scanalogic2], [libusb])
325 SR_DRIVER([Ikalogic Scanaplus], [ikalogic-scanaplus], [libftdi])
326 SR_DRIVER([IPDBG LA], [ipdbg-la])
327 SR_DRIVER([ITECH IT8500], [itech-it8500], [serial_comm])
328 SR_DRIVER([Kecheng KC-330B], [kecheng-kc-330b], [libusb])
329 SR_DRIVER([KERN scale], [kern-scale], [serial_comm])
330 SR_DRIVER([Kingst LA2016], [kingst-la2016], [libusb])
331 SR_DRIVER([Korad KAxxxxP], [korad-kaxxxxp], [serial_comm])
332 SR_DRIVER([Lascar EL-USB], [lascar-el-usb], [libusb])
333 SR_DRIVER([LeCroy LogicStudio], [lecroy-logicstudio], [libusb])
334 SR_DRIVER([LeCroy X-Stream], [lecroy-xstream])
335 SR_DRIVER([Manson HCS-3xxx], [manson-hcs-3xxx], [serial_comm])
336 SR_DRIVER([Mastech MS6514], [mastech-ms6514], [serial_comm])
337 SR_DRIVER([maynuo-m97], [maynuo-m97])
338 SR_DRIVER([MIC 985xx], [mic-985xx], [serial_comm])
339 SR_DRIVER([Microchip PICkit2], [microchip-pickit2], [libusb])
340 SR_DRIVER([Mooshimeter DMM], [mooshimeter-dmm], [bluetooth_comm libgio])
341 SR_DRIVER([Motech LPS 30x], [motech-lps-30x], [serial_comm])
342 SR_DRIVER([Norma DMM], [norma-dmm], [serial_comm])
343 SR_DRIVER([OpenBench Logic Sniffer], [openbench-logic-sniffer], [serial_comm])
344 SR_DRIVER([PCE PCE-322A], [pce-322a], [serial_comm])
345 SR_DRIVER([Pipistrello-OLS], [pipistrello-ols], [libftdi])
346 SR_DRIVER([RDTech DPSxxxx/DPHxxxx], [rdtech-dps], [serial_comm])
347 SR_DRIVER([RDTech UMXX], [rdtech-um], [serial_comm])
348 SR_DRIVER([RDTech TCXX], [rdtech-tc], [serial_comm libnettle])
349 SR_DRIVER([Rigol DS], [rigol-ds])
350 SR_DRIVER([Rigol DG], [rigol-dg])
351 SR_DRIVER([Rohde&Schwarz SME-0x], [rohde-schwarz-sme-0x], [serial_comm])
352 SR_DRIVER([Saleae Logic16], [saleae-logic16], [libusb])
353 SR_DRIVER([Saleae Logic Pro], [saleae-logic-pro], [libusb])
354 SR_DRIVER([SCPI DMM], [scpi-dmm])
355 SR_DRIVER([SCPI PPS], [scpi-pps])
356 SR_DRIVER([serial DMM], [serial-dmm], [serial_comm])
357 SR_DRIVER([serial LCR], [serial-lcr], [serial_comm])
358 SR_DRIVER([Siglent SDS], [siglent-sds])
359 SR_DRIVER([Sysclk LWLA], [sysclk-lwla], [libusb])
360 SR_DRIVER([Sysclk SLA5032], [sysclk-sla5032], [libusb])
361 SR_DRIVER([Teleinfo], [teleinfo], [serial_comm])
362 SR_DRIVER([Testo], [testo], [libusb])
363 SR_DRIVER([Tondaj SL-814], [tondaj-sl-814], [serial_comm])
364 SR_DRIVER([UNI-T DMM], [uni-t-dmm], [libusb])
365 SR_DRIVER([UNI-T UT181A], [uni-t-ut181a], [serial_comm])
366 SR_DRIVER([UNI-T UT32x], [uni-t-ut32x], [serial_comm])
367 SR_DRIVER([Yokogawa DL/DLM], [yokogawa-dlm])
368 SR_DRIVER([ZEROPLUS Logic Cube], [zeroplus-logic-cube], [libusb])
369 SR_DRIVER([ZKETECH EBD-USB], [zketech-ebd-usb], [serial_comm])
370
371 ###############################
372 ##  Language bindings setup  ##
373 ###############################
374
375 AC_LANG([C++])
376 SR_ARG_ENABLE_WARNINGS([SR_WXXFLAGS], [-Wall], [-Wall -Wextra])
377
378 AC_ARG_ENABLE([bindings],
379         [AS_HELP_STRING([--enable-bindings], [build language bindings [default=yes]])],
380         [], [enable_bindings=yes])
381
382 AC_ARG_ENABLE([cxx],
383         [AS_HELP_STRING([--enable-cxx], [build C++ bindings [default=yes]])],
384         [], [enable_cxx=$enable_bindings])
385
386 AC_ARG_ENABLE([python],
387         [AS_HELP_STRING([--enable-python], [build Python bindings [default=yes]])],
388         [], [enable_python=$enable_bindings])
389
390 AC_ARG_ENABLE([ruby],
391         [AS_HELP_STRING([--enable-ruby], [build Ruby bindings [default=yes]])],
392         [], [enable_ruby=$enable_bindings])
393
394 AC_ARG_ENABLE([java],
395         [AS_HELP_STRING([--enable-java], [build Java bindings [default=yes]])],
396         [], [enable_java=$enable_bindings])
397
398 ####################
399 ##  C++ bindings  ##
400 ####################
401
402 sr_cxx_missing=
403
404 # Check if the C++ compiler supports the C++11 standard.
405 AX_CXX_COMPILE_STDCXX([11], [noext], [optional])
406 AS_IF([test "x$HAVE_CXX11" != x1],
407         [SR_APPEND([sr_cxx_missing], [', '], ['C++11'])])
408
409 # The C++ bindings need glibmm.
410 SR_PKG_CHECK([glibmm], [SR_PKGLIBS_CXX], [glibmm-2.4 >= 2.32.0])
411 AS_IF([test "x$sr_have_glibmm" != xyes],
412         [SR_APPEND([sr_cxx_missing], [', '], [glibmm])])
413
414 # The C++ bindings use Doxygen to parse libsigrok symbols.
415 AC_CHECK_PROG([HAVE_DOXYGEN], [doxygen], [yes], [no])
416 AS_IF([test "x$HAVE_DOXYGEN" != xyes],
417         [SR_APPEND([sr_cxx_missing], [', '], [Doxygen])])
418
419 # Link C++ code with gnustl_shared if it exists (Android)
420 SR_SEARCH_LIBS([SR_EXTRA_CXX_LIBS], [__cxa_throw], [gnustl_shared])
421
422 # Python is needed for the C++ bindings.
423 AM_PATH_PYTHON([2.7],
424         [HAVE_PYTHON=yes],
425         [HAVE_PYTHON=no
426         SR_APPEND([sr_cxx_missing], [', '], [Python])])
427
428 AS_IF([test -z "$sr_cxx_missing"],
429         [BINDINGS_CXX=$enable_cxx], [BINDINGS_CXX=no])
430 AM_CONDITIONAL([BINDINGS_CXX], [test "x$BINDINGS_CXX" = xyes])
431
432 # C++ bindings want stoi and stod.
433 AM_COND_IF([BINDINGS_CXX], [
434         AC_CACHE_CHECK([for stoi and stod], [sr_cv_have_stoi_stod],
435                 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <string>]],
436                                 [[(void) std::stoi("1"); (void) std::stod("1.0");]])],
437                         [sr_cv_have_stoi_stod=yes], [sr_cv_have_stoi_stod=no])])
438         AS_IF([test "x$sr_cv_have_stoi_stod" = xyes],
439                 [AC_DEFINE([HAVE_STOI_STOD], [1],
440                         [Specifies whether we have the stoi and stod functions.])])
441 ])
442
443 #######################
444 ##  Python bindings  ##
445 #######################
446
447 AS_IF([test "x$BINDINGS_CXX" = xyes],
448         [sr_python_missing=],
449         [sr_python_missing='C++ bindings'])
450
451 # Extract major and minor version number of the Python interpreter.
452 sr_pymajor=${PYTHON_VERSION%%.*}
453 sr_pyminor=${PYTHON_VERSION#*.}
454
455 # The Python bindings need Python development files. Check for either
456 # Python 3 or Python 2 headers depending on the interpreter version.
457 SR_PKG_CHECK([python_dev], [SR_PKGLIBS_PYTHON],
458         [python = $PYTHON_VERSION],
459         [python$sr_pymajor = $PYTHON_VERSION],
460         [python$sr_pymajor$sr_pyminor = $PYTHON_VERSION],
461         [python-$PYTHON_VERSION = $PYTHON_VERSION])
462
463 AS_IF([test "x$sr_have_python_dev" != xyes],
464         [SR_APPEND([sr_python_missing], [', '], [Headers])])
465
466 # PyGObject is needed for the Python bindings.
467 SR_PKG_CHECK([pygobject], [SR_PKGLIBS_PYTHON], [pygobject-3.0 >= 3.0.0])
468 AS_IF([test "x$sr_have_pygobject" != xyes],
469         [SR_APPEND([sr_python_missing], [', '], [PyGObject])])
470
471 PKG_CHECK_EXISTS([pygobject-3.0 < 3.7.91],
472         [AC_DEFINE([PYGOBJECT_FLAGS_SIGNED], [1],
473                 [Whether last argument to pyg_flags_get_value() is signed.])])
474
475 # The Python bindings need the setuptools and numpy Python modules.
476 # We'll let it go through even if the AX macro wasn't found, as the
477 # Python modules may still be there.
478 m4_ifdef([AX_PYTHON_MODULE], [
479         AX_PYTHON_MODULE([setuptools])
480         AX_PYTHON_MODULE([numpy])
481 ], [
482         HAVE_PYMOD_SETUPTOOLS=yes
483         HAVE_PYMOD_NUMPY=yes
484         m4_warn([unsupported],
485                 [Missing macro AX_PYTHON_MODULE: no check for setuptools and numpy])
486 ])
487 AS_IF([test "x$HAVE_PYMOD_SETUPTOOLS" != xyes],
488         [SR_APPEND([sr_python_missing], [', '], [setuptools])])
489 AS_IF([test "x$HAVE_PYMOD_NUMPY" != xyes],
490         [SR_APPEND([sr_python_missing], [', '], [numpy])])
491
492 # The Python bindings use SWIG to generate code.
493 AC_CHECK_PROGS([SWIG], [swig swig4.0 swig3.0 swig2.0])
494 AS_IF([test "x$SWIG" != x],
495     AC_MSG_CHECKING([for $SWIG version])
496     [SWIG_VERSION=`$SWIG -version 2>&1 | sed -n 's/SWIG Version //p'`]
497     AC_MSG_RESULT([$SWIG_VERSION]))
498 AS_IF([test "x$SWIG" = x],
499         [SR_APPEND([sr_python_missing], [', '], [SWIG])])
500
501 AS_IF([test -z "$sr_python_missing"],
502         [BINDINGS_PYTHON=$enable_python], [BINDINGS_PYTHON=no])
503 AM_CONDITIONAL([BINDINGS_PYTHON], [test "x$BINDINGS_PYTHON" = xyes])
504
505 #####################
506 ##  Ruby bindings  ##
507 #####################
508
509 AS_IF([test "x$BINDINGS_CXX" = xyes],
510         [sr_ruby_missing=],
511         [sr_ruby_missing='C++ bindings'])
512
513 AC_PATH_PROGS(RUBY, ["${RUBY-ruby}"], [])
514 AS_IF([test "x$RUBY" != x],
515         AC_MSG_CHECKING([for Ruby version])
516     [RUBY_VERSION=`$RUBY -e 'puts RUBY_VERSION'`]
517     AC_MSG_RESULT([$RUBY_VERSION])
518     [RUBY_DLEXT=`$RUBY -rrbconfig -e 'puts RbConfig::CONFIG[["DLEXT"]]'`]
519     AC_SUBST(RUBY_DLEXT))
520
521 AS_IF([test "x$RUBY" = x],
522         [SR_APPEND([sr_ruby_missing], [', '], [Ruby])])
523
524 # Extract major and minor version number of the Ruby interpreter.
525 sr_rbmajor=${RUBY_VERSION%%.*}
526 sr_rbminor=${RUBY_VERSION#*.}
527 sr_rbminor=${sr_rbminor%%.*}
528
529 # The Ruby bindings need Ruby development files.
530 SR_PKG_CHECK([ruby_dev], [SR_PKGLIBS_RUBY],
531         [ruby >= 2.5.0],
532         [ruby-$sr_rbmajor.$sr_rbminor >= 2.5.0])
533
534 AS_IF([test "x$sr_have_ruby_dev" != xyes],
535         [SR_APPEND([sr_ruby_missing], [', '], [Headers])])
536
537 # The Ruby bindings use SWIG >= 3.0.8 to generate code.
538 AS_IF([test "x$SWIG" = x],
539         [SR_APPEND([sr_ruby_missing], [', '], [SWIG])],
540         [AS_VERSION_COMPARE($SWIG_VERSION, "3.0.8",
541                 [SR_APPEND([sr_ruby_missing], [', '], ['SWIG >= 3.0.8'])])])
542
543 AS_IF([test -z "$sr_ruby_missing"],
544         [BINDINGS_RUBY=$enable_ruby], [BINDINGS_RUBY=no])
545 AM_CONDITIONAL([BINDINGS_RUBY], [test "x$BINDINGS_RUBY" = xyes])
546
547 ####################
548 ##  Java bindings ##
549 ####################
550
551 AS_IF([test "x$BINDINGS_CXX" = xyes],
552         [sr_java_missing=],
553         [sr_java_missing='C++ bindings'])
554
555 # The Java bindings use SWIG to generate code.
556 AS_IF([test "x$SWIG" = x],
557         [SR_APPEND([sr_java_missing], [', '], [SWIG])])
558
559 # Find Java compiler and JNI includes for Java bindings.
560 AC_CHECK_PROG([HAVE_JAVAC], [javac], [yes], [no])
561 AS_IF([test "x$HAVE_JAVAC" = xno],
562         [SR_APPEND([sr_java_missing], [', '], [JavaC])])
563
564 AC_ARG_WITH([jni-include-path],
565         [AS_HELP_STRING([[--with-jni-include-path=DIR-LIST (space-separated)]],
566                 [specify JNI include directories [default=detect]])],
567         [JNI_INCLUDE_DIRS=" $withval"], [JNI_INCLUDE_DIRS=])
568
569 JNI_CPPFLAGS=
570 AS_IF([test "x$enable_java$HAVE_JAVAC" = xyesyes], [
571         AX_PROG_JAVAC
572         AS_IF([test -z "$JNI_INCLUDE_DIRS" && test "x$cross_compiling" != xyes], [
573                 ## Work around the totally broken logic in AX_JNI_INCLUDE_DIR:
574                 ## If we can find jni.h without any special search path, skip
575                 ## the execution of the broken macro to increase our chances of
576                 ## success.
577                 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <jni.h>]], [])],,
578                         [AX_JNI_INCLUDE_DIR])
579         ])
580 ])
581 for sr_dir in $JNI_INCLUDE_DIRS
582 do
583         SR_APPEND([JNI_CPPFLAGS], ["-I$sr_dir"])
584 done
585 AC_SUBST([JNI_CPPFLAGS])
586
587 sr_save_cppflags=$CPPFLAGS
588 SR_APPEND([CPPFLAGS], [$JNI_CPPFLAGS])
589 AC_CHECK_HEADER([jni.h],,
590         [SR_APPEND([sr_java_missing], [', '], ['JNI headers'])])
591 CPPFLAGS=$sr_save_cppflags
592
593 AS_IF([test -z "$sr_java_missing"],
594         [BINDINGS_JAVA=$enable_java], [BINDINGS_JAVA=no])
595 AM_CONDITIONAL([BINDINGS_JAVA], [test "x$BINDINGS_JAVA" = xyes])
596
597 ##############################
598 ##  Finalize configuration  ##
599 ##############################
600
601 # Add mandatory dependencies to module list.
602 SR_APPEND([SR_PKGLIBS], ['libzip >= 0.10'])
603 AC_SUBST([SR_PKGLIBS])
604
605 # Retrieve the compile and link flags for all modules combined.
606 # Also, bail out at this point if any module dependency is not met.
607 PKG_CHECK_MODULES([LIBSIGROK], [glib-2.0 >= 2.32.0 $SR_PKGLIBS])
608 PKG_CHECK_MODULES([TESTS], [$SR_PKGLIBS_TESTS glib-2.0 $SR_PKGLIBS])
609
610 # SR_PKGLIBS_CXX may be empty, so only invoke these checks when
611 # the C++ bindings are enabled.
612 AM_COND_IF([BINDINGS_CXX], [
613         PKG_CHECK_MODULES([LIBSIGROKCXX], [$SR_PKGLIBS_CXX])
614         PKG_CHECK_MODULES([PYSIGROK], [$SR_PKGLIBS_PYTHON $SR_PKGLIBS_CXX])
615         PKG_CHECK_MODULES([RBSIGROK], [$SR_PKGLIBS_RUBY $SR_PKGLIBS_CXX], [AC_SUBST(RBSIGROK_EXTDIR, "lib/$($PKG_CONFIG --variable=sitearch $SR_PKGLIBS_RUBY)/$($PKG_CONFIG --variable=RUBY_BASE_NAME $SR_PKGLIBS_RUBY)/vendor_ruby/$($PKG_CONFIG --variable=ruby_version $SR_PKGLIBS_RUBY)")])
616 ])
617
618 # Check for specific libusb features, now that we know the CFLAGS.
619 # Also check for version dependent libftdi features.
620 AC_LANG([C])
621 sr_save_cflags=$CFLAGS
622 sr_save_libs=$LIBS
623 CFLAGS="$LIBSIGROK_CFLAGS $CFLAGS"
624 LIBS="$LIBSIGROK_LIBS $LIBS"
625 AC_CHECK_TYPES([libusb_os_handle],
626         [sr_have_libusb_os_handle=yes], [sr_have_libusb_os_handle=no],
627         [[#include <libusb.h>]])
628 AC_CHECK_FUNCS([zip_discard])
629 AC_CHECK_FUNCS([ftdi_tciflush ftdi_tcoflush ftdi_tcioflush])
630 LIBS=$sr_save_libs
631 CFLAGS=$sr_save_cflags
632
633 AM_COND_IF([NEED_USB], [AS_CASE([$sr_have_libusb_os_handle:$host_os], [no:mingw*],
634         [AC_MSG_ERROR([Windows builds require the event-abstraction branch of libusb])])])
635
636 sr_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD`
637 sr_libzip_version=`$PKG_CONFIG --modversion libzip 2>&AS_MESSAGE_LOG_FD`
638 sr_zlib_version=`$PKG_CONFIG --modversion zlib 2>&AS_MESSAGE_LOG_FD`
639
640 AC_DEFINE_UNQUOTED([CONF_LIBZIP_VERSION], ["$sr_libzip_version"],
641         [Build-time version of libzip.])
642 AC_DEFINE_UNQUOTED([CONF_ZLIB_VERSION], ["$sr_zlib_version"],
643         [Build-time version of zlib.])
644 AC_DEFINE_UNQUOTED([CONF_HOST], ["$host"],
645         [The canonical host libsigrok will run on.])
646
647 AC_CONFIG_FILES([Makefile libsigrok.pc bindings/cxx/libsigrokcxx.pc])
648
649 AC_OUTPUT
650
651 # Prepare bindings report messages.
652 m4_define([SR_PREPARE_BINDING_REPORT], [
653         sr_report_$1=
654         test -z "$sr_$1_missing" || sr_report_$1=" (missing: $sr_$1_missing)"
655         test "x$enable_$1" = xyes || sr_report_$1=' (disabled)'
656 ])
657 m4_map_args([SR_PREPARE_BINDING_REPORT], [cxx], [python], [ruby], [java])
658
659 cat >&AS_MESSAGE_FD <<_EOF
660
661 libsigrok configuration summary:
662  - Package version................. $SR_PACKAGE_VERSION
663  - Library ABI version............. $SR_LIB_VERSION
664  - Prefix.......................... $prefix
665  - Building on..................... $build
666  - Building for.................... $host
667  - Building shared / static........ $enable_shared / $enable_static
668
669 Compile configuration:
670  - C compiler...................... $CC
671  - C compiler version.............. $sr_cc_version
672  - C compiler flags................ $CFLAGS
673  - Additional C compiler flags..... $SR_EXTRA_CFLAGS
674  - C compiler warnings............. $SR_WFLAGS
675  - C++ compiler.................... $CXX
676  - C++ compiler version............ $sr_cxx_version
677  - C++ compiler flags.............. $CXXFLAGS
678  - C++ compiler warnings........... $SR_WXXFLAGS
679  - Linker flags.................... $LDFLAGS
680
681 Detected libraries (required):
682  - glib-2.0 >= 2.32.0.............. $sr_glib_version
683  - libzip >= 0.10.................. $sr_libzip_version
684
685 Detected libraries (optional):
686 $sr_pkglibs_summary
687 Enabled hardware drivers:
688 $sr_driver_summary
689 Enabled serial communication transports:
690   - serial comm ................... $sr_have_serial_comm
691   - libserialport ................. $sr_have_libserialport
692   - hidapi ........................ $sr_have_libhidapi
693   - bluetooth ..................... $sr_have_bluetooth
694   - bluez ......................... $sr_have_libbluez
695
696 Enabled SCPI backends:
697  - TCP............................. yes
698  - SunRPC ......................... $sr_cv_have_sunrpc
699  - TI-RPC ......................... $sr_cv_have_tirpc
700  - RPC............................. $sr_cv_have_rpc
701  - serial.......................... $sr_have_serial_comm
702  - VISA............................ $sr_have_librevisa
703  - GPIB............................ $sr_have_libgpib
704  - USBTMC.......................... $sr_have_libusb
705
706 Enabled language bindings:
707  - C++............................. $BINDINGS_CXX$sr_report_cxx
708  - Python.......................... $BINDINGS_PYTHON$sr_report_python
709  - Ruby............................ $BINDINGS_RUBY$sr_report_ruby
710  - Java............................ $BINDINGS_JAVA$sr_report_java
711
712 _EOF
713
714 # Emit a warning if the C++ bindings are not being built.
715 AM_COND_IF([BINDINGS_CXX], [], [
716 cat >&AS_MESSAGE_FD <<_EOF
717 ===============================================================================
718 WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
719 ===============================================================================
720 ===                                                                         ===
721 ===         The libsigrok C++ bindings are not being built since you        ===
722 ===             are missing one or more dependencies (see above)!           ===
723 ===                                                                         ===
724 ===      This means you won't be able to compile frontends that require     ===
725 ===  the C++ bindings (such as PulseView)! You also won't be able to build  ===
726 ===     other bindings and frontends using those (such as sigrok-meter)!    ===
727 ===                                                                         ===
728 ===============================================================================
729 WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
730 ===============================================================================
731
732 _EOF
733 ])