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])
21 # These numbers should be tweaked on every release. Read carefully:
22 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
23 # 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])
49 dnl on linux-android platform, some functions are in different places
52 AC_MSG_RESULT([This is a Linux-Android system])
53 is_backend_android=yes
60 *-linux* | *-uclinux*)
61 AC_MSG_RESULT([Linux])
66 AC_MSG_RESULT([Darwin/Mac OS X])
71 AC_MSG_RESULT([OpenBSD])
76 AC_MSG_RESULT([NetBSD])
81 AC_MSG_RESULT([Windows])
85 AM_CFLAGS="${AM_CFLAGS} -fno-omit-frame-pointer"
88 AC_MSG_RESULT([Cygwin (using Windows backend)])
93 AC_MSG_RESULT([Haiku])
98 AC_MSG_RESULT([SunOS])
103 AC_MSG_RESULT([Null])
110 AC_DEFINE(OS_LINUX, 1, [Linux backend])
112 AC_SEARCH_LIBS([clock_gettime], [rt], [], [], [-pthread])
113 AC_ARG_ENABLE([udev],
114 [AC_HELP_STRING([--enable-udev], [use udev for device enumeration and hotplug support (recommended) [default=yes]])],
115 [], [enable_udev=yes])
116 if test "x$enable_udev" = xyes ; then
117 # system has udev. use it or fail!
118 AC_CHECK_HEADERS([libudev.h], [], [AC_MSG_ERROR([udev support requested but libudev header not installed])])
119 AC_CHECK_LIB([udev], [udev_new], [], [AC_MSG_ERROR([udev support requested but libudev not installed])])
120 AC_DEFINE(USE_UDEV, 1, [Use udev for device enumeration/hotplug])
122 AC_CHECK_HEADERS([asm/types.h], [], [])
123 AC_CHECK_HEADERS([sys/socket.h linux/netlink.h], [], [AC_MSG_ERROR([Linux netlink headers not found])], [
124 #ifdef HAVE_ASM_TYPES_H
125 #include <asm/types.h>
127 #include <sys/socket.h>
132 if test "x$is_backend_android" != xyes; then
133 THREAD_CFLAGS="-pthread"
134 LIBS="${LIBS} -pthread"
137 AC_CHECK_HEADERS([poll.h])
138 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
141 AC_DEFINE(OS_DARWIN, 1, [Darwin backend])
143 LIBS="-lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation"
144 LTLDFLAGS="${LTLDFLAGS} -Wl,-prebind"
145 AC_CHECK_HEADERS([poll.h])
146 AC_CHECK_TYPE([nfds_t],
147 [AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])],
148 [AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument])],
152 AC_DEFINE(OS_OPENBSD, 1, [OpenBSD backend])
154 THREAD_CFLAGS="-pthread"
156 AC_CHECK_HEADERS([poll.h])
157 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
160 AC_DEFINE(OS_SUNOS, 1, [SunOS backend])
162 THREAD_CFLAGS="-pthread"
163 LIBS="-pthread -ldevinfo"
164 AC_CHECK_HEADERS([poll.h])
165 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
168 AC_DEFINE(OS_NETBSD, 1, [NetBSD backend])
170 THREAD_CFLAGS="-pthread"
172 AC_CHECK_HEADERS([poll.h])
173 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
176 AC_DEFINE(OS_WINDOWS, 1, [Windows backend])
179 LTLDFLAGS="${LTLDFLAGS} -avoid-version -Wl,--add-stdcall-alias"
180 AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument])
181 AC_DEFINE([WINVER], 0x0501, [Oldest Windows version supported])
182 AC_DEFINE([_WIN32_WINNT], 0x0501, [Oldest Windows version supported])
185 AC_DEFINE(OS_HAIKU, 1, [Haiku backend])
188 AC_CHECK_HEADERS([poll.h])
189 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
192 AC_DEFINE(OS_NULL, 1, [Null backend])
194 THREAD_CFLAGS="-pthread"
196 AC_CHECK_HEADERS([poll.h])
197 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
203 AM_CONDITIONAL(OS_LINUX, test "x$backend" = xlinux)
204 AM_CONDITIONAL(OS_DARWIN, test "x$backend" = xdarwin)
205 AM_CONDITIONAL(OS_OPENBSD, test "x$backend" = xopenbsd)
206 AM_CONDITIONAL(OS_SUNOS, test "x$backend" = xsunos)
207 AM_CONDITIONAL(OS_NETBSD, test "x$backend" = xnetbsd)
208 AM_CONDITIONAL(OS_WINDOWS, test "x$backend" = xwindows)
209 AM_CONDITIONAL(OS_HAIKU, test "x$backend" = xhaiku)
210 AM_CONDITIONAL(OS_NULL, test "x$backend" = xnull)
211 AM_CONDITIONAL(THREADS_POSIX, test "x$threads" = xposix)
212 AM_CONDITIONAL(CREATE_IMPORT_LIB, test "x$create_import_lib" = xyes)
213 AM_CONDITIONAL(USE_UDEV, test "x$enable_udev" = xyes)
214 if test "x$threads" = xposix; then
215 AC_DEFINE(THREADS_POSIX, 1, [Use POSIX Threads])
219 AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=1], [timerfd_h=0])
220 AC_ARG_ENABLE([timerfd],
221 [AS_HELP_STRING([--enable-timerfd],
222 [use timerfd for timing [default=auto]])],
223 [use_timerfd=$enableval], [use_timerfd=auto])
225 if test "x$use_timerfd" = xyes -a "x$timerfd_h" = x0; then
226 AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required])
229 AC_CHECK_DECLS([TFD_NONBLOCK, TFD_CLOEXEC], [tfd_hdr_ok=yes], [tfd_hdr_ok=no], [#include <sys/timerfd.h>])
230 if test "x$use_timerfd" = xyes -a "x$tfd_hdr_ok" = xno; then
231 AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required])
234 AC_MSG_CHECKING([whether to use timerfd for timing])
235 if test "x$use_timerfd" = xno; then
236 AC_MSG_RESULT([no (disabled by user)])
238 if test "x$timerfd_h" = x1 -a "x$tfd_hdr_ok" = xyes; then
240 AC_DEFINE(USBI_TIMERFD_AVAILABLE, 1, [timerfd headers available])
242 AC_MSG_RESULT([no (header not available)])
246 AC_CHECK_FUNCS([pipe2])
247 AC_CHECK_TYPES([struct timespec])
250 AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])],
251 [log_enabled=$enableval],
253 if test "x$log_enabled" != xno; then
254 AC_DEFINE([ENABLE_LOGGING], 1, [Message logging])
257 AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log],
258 [start with debug message logging enabled [default=no]])],
259 [debug_log_enabled=$enableval],
260 [debug_log_enabled=no])
261 if test "x$debug_log_enabled" != xno; then
262 AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Start with debug message logging enabled])
265 AC_ARG_ENABLE([system-log], [AS_HELP_STRING([--enable-system-log],
266 [output logging messages to system wide log, if supported by the OS [default=no]])],
267 [system_log_enabled=$enableval],
268 [system_log_enabled=no])
269 if test "x$system_log_enabled" != xno; then
270 AC_DEFINE([USE_SYSTEM_LOGGING_FACILITY], 1, [Enable output to system log])
272 # Check if syslog is available in standard C library
273 AC_CHECK_HEADERS(syslog.h)
274 AC_CHECK_FUNC([syslog], [have_syslog=yes], [have_syslog=no])
275 if test "x$have_syslog" != xno; then
276 AC_DEFINE([HAVE_SYSLOG_FUNC], 1, [syslog() function available])
281 AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build],
282 [build example applications [default=no]])],
283 [build_examples=$enableval],
285 AM_CONDITIONAL(BUILD_EXAMPLES, test "x$build_examples" != xno)
288 AC_ARG_ENABLE([tests-build], [AS_HELP_STRING([--enable-tests-build],
289 [build test applications [default=no]])],
290 [build_tests=$enableval],
292 AM_CONDITIONAL(BUILD_TESTS, test "x$build_tests" != xno)
294 # headers not available on all platforms but required on others
295 AC_CHECK_HEADERS([sys/time.h])
297 # sigaction not available on MinGW
298 AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no])
299 AM_CONDITIONAL(HAVE_SIGACTION, test "x$have_sigaction" = xyes)
301 # check for -fvisibility=hidden compiler support (GCC >= 3.4)
302 saved_cflags="$CFLAGS"
303 # -Werror required for cygwin
304 CFLAGS="$CFLAGS -Werror -fvisibility=hidden"
305 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
306 [VISIBILITY_CFLAGS="-fvisibility=hidden"
307 AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__((visibility("default")))], [Default visibility])],
308 [VISIBILITY_CFLAGS=""
309 AC_DEFINE([DEFAULT_VISIBILITY], [], [Default visibility])],
311 CFLAGS="$saved_cflags"
313 # check for -Wno-pointer-sign compiler support (GCC >= 4)
314 saved_cflags="$CFLAGS"
315 CFLAGS="$CFLAGS -Wno-pointer-sign"
316 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
317 nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
318 CFLAGS="$saved_cflags"
320 # check for -std=gnu99 compiler support
321 saved_cflags="$CFLAGS"
323 AC_MSG_CHECKING([whether CC supports -std=gnu99])
324 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
325 [AC_MSG_RESULT([yes])]
326 [AM_CFLAGS="${AM_CFLAGS} -std=gnu99"],
327 [AC_MSG_RESULT([no])]
329 CFLAGS="$saved_cflags"
331 AM_CFLAGS="${AM_CFLAGS} -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow ${THREAD_CFLAGS} ${VISIBILITY_CFLAGS}"
336 AC_CONFIG_FILES([libusb-1.0.pc])
337 AC_CONFIG_FILES([Makefile])
338 AC_CONFIG_FILES([libusb/Makefile])
339 AC_CONFIG_FILES([examples/Makefile])
340 AC_CONFIG_FILES([tests/Makefile])
341 AC_CONFIG_FILES([doc/Makefile])
342 AC_CONFIG_FILES([doc/doxygen.cfg])