1 dnl These m4 macros are whitespace sensitive and break if moved around much.
2 m4_define([LU_VERSION_H], m4_include([libusb/version.h]))
3 m4_define([LU_DEFINE_VERSION_ATOM],
4 [m4_define([$1], m4_bregexp(LU_VERSION_H,
5 [^#define\s*$1\s*\([0-9]*\).*], [\1]))])
6 m4_define([LU_DEFINE_VERSION_RC_ATOM],
7 [m4_define([$1], m4_bregexp(LU_VERSION_H,
8 [^#define\s*$1\s*"\(-rc[0-9]*\)".*], [\1]))])
9 dnl The m4_bregexp() returns (only) the numbers following the #define named
10 dnl in the first macro parameter. m4_define() then defines the name for use
13 LU_DEFINE_VERSION_ATOM([LIBUSB_MAJOR])
14 LU_DEFINE_VERSION_ATOM([LIBUSB_MINOR])
15 LU_DEFINE_VERSION_ATOM([LIBUSB_MICRO])
16 LU_DEFINE_VERSION_RC_ATOM([LIBUSB_RC])
18 AC_INIT([libusb],[LIBUSB_MAJOR[.]LIBUSB_MINOR[.]LIBUSB_MICRO[]LIBUSB_RC],[libusb-devel@lists.sourceforge.net],[libusb],[http://libusb.info])
20 dnl Library versioning
21 dnl These numbers should be tweaked on every release. Read carefully:
22 dnl http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
23 dnl http://sourceware.org/autobook/autobook/autobook_91.html
27 LTLDFLAGS="-version-info ${lt_current}:${lt_revision}:${lt_age}"
31 AC_CONFIG_SRCDIR([libusb/core.c])
32 AC_CONFIG_MACRO_DIR([m4])
33 AC_CONFIG_HEADERS([config.h])
34 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
40 LT_LANG([Windows Resource])
43 AC_DEFINE([_GNU_SOURCE], [1], [Use GNU extensions])
45 LTLDFLAGS="${LTLDFLAGS} -no-undefined"
47 AC_MSG_CHECKING([operating system])
50 AC_MSG_RESULT([Darwin/Mac OS X])
56 AC_MSG_RESULT([Haiku])
61 *-linux* | *-uclinux*)
62 dnl on linux-android platform, some functions are in different places
65 AC_MSG_RESULT([Linux (Android system)])
66 is_backend_android=yes
69 AC_MSG_RESULT([Linux])
78 AC_MSG_RESULT([NetBSD])
84 AC_MSG_RESULT([OpenBSD])
90 AC_MSG_RESULT([SunOS])
96 AC_MSG_RESULT([Windows (using Cygwin)])
102 AC_MSG_RESULT([Windows])
106 create_import_lib=yes
107 AM_CFLAGS="${AM_CFLAGS} -fno-omit-frame-pointer"
110 AC_MSG_RESULT([Null])
119 AC_DEFINE([OS_DARWIN], [1], [Darwin backend])
120 LIBS="-lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation"
121 LTLDFLAGS="${LTLDFLAGS} -Wl,-prebind"
124 AC_DEFINE([OS_HAIKU], [1], [Haiku backend])
128 AC_DEFINE([OS_LINUX], [1], [Linux backend])
129 AC_SEARCH_LIBS([clock_gettime], [rt], [], [], [-pthread])
130 AC_ARG_ENABLE([udev],
131 [AC_HELP_STRING([--enable-udev], [use udev for device enumeration and hotplug support (recommended) [default=yes]])],
132 [], [enable_udev=yes])
133 if test "x$enable_udev" = xyes ; then
134 dnl system has udev. use it or fail!
135 AC_CHECK_HEADER([libudev.h], [], [AC_MSG_ERROR([udev support requested but libudev header not installed])])
136 AC_CHECK_LIB([udev], [udev_new], [], [AC_MSG_ERROR([udev support requested but libudev not installed])])
138 AC_CHECK_HEADERS([asm/types.h])
139 AC_CHECK_HEADER([linux/netlink.h], [], [AC_MSG_ERROR([Linux netlink header not found])])
140 AC_CHECK_HEADER([sys/socket.h], [], [AC_MSG_ERROR([Linux socket header not found])])
142 if test "x$is_backend_android" != xyes; then
143 THREAD_CFLAGS="-pthread"
144 LIBS="${LIBS} -pthread"
148 AC_DEFINE([OS_NETBSD], [1], [NetBSD backend])
149 THREAD_CFLAGS="-pthread"
153 AC_DEFINE([OS_NULL], [1], [Null backend])
154 THREAD_CFLAGS="-pthread"
158 AC_DEFINE([OS_OPENBSD], [1], [OpenBSD backend])
159 THREAD_CFLAGS="-pthread"
163 AC_DEFINE([OS_SUNOS], [1], [SunOS backend])
164 THREAD_CFLAGS="-pthread"
165 LIBS="-pthread -ldevinfo"
168 AC_DEFINE([OS_WINDOWS], [1], [Windows backend])
169 AC_CHECK_TYPES([struct timespec], [], [], [[#include <time.h>]])
171 LTLDFLAGS="${LTLDFLAGS} -avoid-version -Wl,--add-stdcall-alias"
172 AC_DEFINE([_WIN32_WINNT], [_WIN32_WINNT_VISTA], [Oldest Windows version supported (Vista)])
175 AC_MSG_ERROR([Unknown backend])
181 AM_CONDITIONAL([OS_DARWIN], [test "x$backend" = xdarwin])
182 AM_CONDITIONAL([OS_HAIKU], [test "x$backend" = xhaiku])
183 AM_CONDITIONAL([OS_LINUX], [test "x$backend" = xlinux])
184 AM_CONDITIONAL([OS_NETBSD], [test "x$backend" = xnetbsd])
185 AM_CONDITIONAL([OS_NULL], [test "x$backend" = xnull])
186 AM_CONDITIONAL([OS_OPENBSD], [test "x$backend" = xopenbsd])
187 AM_CONDITIONAL([OS_SUNOS], [test "x$backend" = xsunos])
188 AM_CONDITIONAL([OS_WINDOWS], [test "x$backend" = xwindows])
189 AM_CONDITIONAL([POLL_POSIX], [test "x$poll" = xposix])
190 AM_CONDITIONAL([POLL_WINDOWS], [test "x$poll" = xwindows])
191 AM_CONDITIONAL([THREADS_POSIX], [test "x$threads" = xposix])
192 AM_CONDITIONAL([THREADS_WINDOWS], [test "x$threads" = xwindows])
193 AM_CONDITIONAL([CREATE_IMPORT_LIB], [test "x$create_import_lib" = xyes])
194 AM_CONDITIONAL([USE_UDEV], [test "x$enable_udev" = xyes])
196 if test "x$poll" = xposix; then
197 AC_DEFINE([POLL_POSIX], [1], [Use POSIX poll() implementation])
198 AC_CHECK_TYPES([nfds_t], [], [], [[#include <poll.h>]])
199 AC_CHECK_FUNCS([pipe2])
200 elif test "x$poll" = xwindows; then
201 AC_DEFINE([POLL_WINDOWS], [1], [Use Windows poll() implementation])
203 AC_MSG_ERROR([Unknown poll implementation])
206 if test "x$threads" = xposix; then
207 AC_DEFINE([THREADS_POSIX], [1], [Use POSIX Threads])
208 elif test "x$threads" = xwindows; then
209 AC_DEFINE([THREADS_WINDOWS], [1], [Use Windows Threads])
211 AC_MSG_ERROR([Unknown threads implementation])
214 dnl headers not available on all platforms but required on others
215 AC_CHECK_HEADERS([sys/time.h])
218 if test "x$backend" = xlinux || test "x$backend" = xsunos; then
219 AC_ARG_ENABLE([timerfd],
220 [AS_HELP_STRING([--enable-timerfd], [use timerfd for timing [default=auto]])],
221 [use_timerfd=$enableval],
223 if test "x$use_timerfd" != xno; then
224 AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=yes], [timerfd_h=no])
225 if test "x$timerfd_h" = xyes; then
226 AC_CHECK_DECLS([TFD_NONBLOCK, TFD_CLOEXEC], [timerfd_h_ok=yes], [timerfd_h_ok=no], [[#include <sys/timerfd.h>]])
227 if test "x$timerfd_h_ok" = xyes; then
228 AC_CHECK_FUNC([timerfd_create], [timerfd_ok=yes], [timerfd_ok=no])
229 if test "x$timerfd_ok" = xyes; then
230 AC_DEFINE([HAVE_TIMERFD], [1], [Define if the system has timerfd functionality])
231 elif test "x$use_timerfd" = xyes; then
232 AC_MSG_ERROR([timerfd_create() function not found; glibc 2.9+ required])
234 elif test "x$use_timerfd" = xyes; then
235 AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required])
237 elif test "x$use_timerfd" = xyes; then
238 AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required])
241 AC_MSG_CHECKING([whether to use timerfd for timing])
242 if test "x$use_timerfd" = xno; then
243 AC_MSG_RESULT([no (disabled by user)])
244 elif test "x$timerfd_h" = xno; then
245 AC_MSG_RESULT([no (header not usable)])
246 elif test "x$timerfd_h_ok" = xno; then
247 AC_MSG_RESULT([no (header not available)])
248 elif test "x$timerfd_ok" = xno; then
249 AC_MSG_RESULT([no (functions not available)])
257 [AS_HELP_STRING([--disable-log], [disable all logging])],
258 [log_enabled=$enableval],
260 if test "x$log_enabled" != xno; then
261 AC_DEFINE([ENABLE_LOGGING], [1], [Message logging])
264 AC_ARG_ENABLE([debug-log],
265 [AS_HELP_STRING([--enable-debug-log], [start with debug message logging enabled [default=no]])],
266 [debug_log_enabled=$enableval],
267 [debug_log_enabled=no])
268 if test "x$debug_log_enabled" != xno; then
269 AC_DEFINE([ENABLE_DEBUG_LOGGING], [1], [Start with debug message logging enabled])
272 AC_ARG_ENABLE([system-log],
273 [AS_HELP_STRING([--enable-system-log], [output logging messages to system wide log, if supported by the OS [default=no]])],
274 [system_log_enabled=$enableval],
275 [system_log_enabled=no])
276 if test "x$system_log_enabled" != xno; then
277 AC_DEFINE([USE_SYSTEM_LOGGING_FACILITY], [1], [Enable output to system log])
278 if test "x$backend" != xwindows && test "x$is_backend_android" != xyes; then
279 dnl Check if syslog is available in standard C library
280 AC_CHECK_HEADER([syslog.h], [syslog_h=yes], [syslog_h=no])
281 if test "x$syslog_h" = xyes; then
282 AC_CHECK_FUNCS([syslog])
288 AC_ARG_ENABLE([examples-build],
289 [AS_HELP_STRING([--enable-examples-build], [build example applications [default=no]])],
290 [build_examples=$enableval],
292 AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != xno])
295 AC_ARG_ENABLE([tests-build],
296 [AS_HELP_STRING([--enable-tests-build], [build test applications [default=no]])],
297 [build_tests=$enableval],
299 AM_CONDITIONAL([BUILD_TESTS], [test "x$build_tests" != xno])
301 dnl sigaction needed for some example programs
302 if test "x$build_examples" != xno; then
303 AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no])
305 AM_CONDITIONAL([HAVE_SIGACTION], [test "x$have_sigaction" = xyes])
307 dnl check for -fvisibility=hidden compiler support (GCC >= 3.4)
308 saved_CFLAGS="${CFLAGS}"
309 dnl -Werror required for cygwin
310 CFLAGS="${CFLAGS} -Werror -fvisibility=hidden"
311 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
312 [VISIBILITY_CFLAGS="-fvisibility=hidden"
313 AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__((visibility("default")))], [Default visibility])],
314 [VISIBILITY_CFLAGS=""
315 AC_DEFINE([DEFAULT_VISIBILITY], [], [Default visibility])],
317 CFLAGS="${saved_CFLAGS}"
319 dnl check for -Wno-pointer-sign compiler support (GCC >= 4)
320 saved_CFLAGS="${CFLAGS}"
321 CFLAGS="${CFLAGS} -Wno-pointer-sign"
322 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
323 nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
324 CFLAGS="${saved_CFLAGS}"
326 dnl check for -std=gnu11 compiler support
327 saved_CFLAGS="${CFLAGS}"
329 AC_MSG_CHECKING([whether CC supports -std=gnu11])
330 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
331 [AC_MSG_RESULT([yes])
332 AM_CFLAGS="${AM_CFLAGS} -std=gnu11"],
333 [AC_MSG_RESULT([no])])
334 CFLAGS="${saved_CFLAGS}"
336 dnl check for _Thread_local compiler support
337 if test "x$backend" != xwindows; then
338 saved_CFLAGS="${CFLAGS}"
339 saved_LDFLAGS="${LDFLAGS}"
340 CFLAGS="${CFLAGS} -fPIC"
341 LDFLAGS="${LDFLAGS} -shared"
342 AC_MSG_CHECKING([whether CC supports _Thread_local])
343 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [static _Thread_local int v])],
344 [AC_MSG_RESULT([yes])
345 AC_DEFINE([HAVE_CC_THREAD_LOCAL], [1], [Define to 1 if the compiler supports _Thread_local.])],
346 [AC_MSG_RESULT([no])])
347 CFLAGS="${saved_CFLAGS}"
348 LDFLAGS="${saved_LDFLAGS}"
351 AM_CFLAGS="${AM_CFLAGS} -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration ${nopointersign_cflags} -Wshadow ${THREAD_CFLAGS} ${VISIBILITY_CFLAGS}"
356 AC_CONFIG_FILES([libusb-1.0.pc])
357 AC_CONFIG_FILES([Makefile])
358 AC_CONFIG_FILES([libusb/Makefile])
359 AC_CONFIG_FILES([examples/Makefile])
360 AC_CONFIG_FILES([tests/Makefile])
361 AC_CONFIG_FILES([doc/Makefile])
362 AC_CONFIG_FILES([doc/doxygen.cfg])