1dnl These m4 macros are whitespace sensitive and break if moved around much. 2m4_define([LU_VERSION_H], m4_include([libusb/version.h])) 3m4_define([LU_DEFINE_VERSION_ATOM], 4 [m4_define([$1], m4_bregexp(LU_VERSION_H, 5 [^#define\s*$1\s*\([0-9]*\).*], [\1]))]) 6m4_define([LU_DEFINE_VERSION_RC_ATOM], 7 [m4_define([$1], m4_bregexp(LU_VERSION_H, 8 [^#define\s*$1\s*"\(-rc[0-9]*\)".*], [\1]))]) 9dnl The m4_bregexp() returns (only) the numbers following the #define named 10dnl in the first macro parameter. m4_define() then defines the name for use 11dnl in AC_INIT. 12 13LU_DEFINE_VERSION_ATOM([LIBUSB_MAJOR]) 14LU_DEFINE_VERSION_ATOM([LIBUSB_MINOR]) 15LU_DEFINE_VERSION_ATOM([LIBUSB_MICRO]) 16LU_DEFINE_VERSION_RC_ATOM([LIBUSB_RC]) 17 18AC_INIT([libusb],[LIBUSB_MAJOR[.]LIBUSB_MINOR[.]LIBUSB_MICRO[]LIBUSB_RC],[libusb-devel@lists.sourceforge.net],[libusb],[http://libusb.info]) 19 20# Library versioning 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 24lt_current=2 25lt_revision=0 26lt_age=1 27LTLDFLAGS="-version-info ${lt_current}:${lt_revision}:${lt_age}" 28 29AM_INIT_AUTOMAKE 30 31AC_CONFIG_SRCDIR([libusb/core.c]) 32AC_CONFIG_MACRO_DIR([m4]) 33AC_CONFIG_HEADERS([config.h]) 34m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])]) 35 36AC_PREREQ([2.69]) 37AC_PROG_CC 38AC_PROG_CXX 39LT_INIT 40LT_LANG([Windows Resource]) 41AC_C_INLINE 42AM_PROG_CC_C_O 43AC_DEFINE([_GNU_SOURCE], 1, [Use GNU extensions]) 44 45LTLDFLAGS="${LTLDFLAGS} -no-undefined" 46 47AC_MSG_CHECKING([operating system]) 48 49dnl on linux-android platform, some functions are in different places 50case $host in 51*-linux-android*) 52 AC_MSG_RESULT([This is a Linux-Android system]) 53 is_backend_android=yes 54 ;; 55*) 56 is_backend_android=no 57esac 58 59case $host in 60*-linux* | *-uclinux*) 61 AC_MSG_RESULT([Linux]) 62 backend=linux 63 threads=posix 64 ;; 65*-darwin*) 66 AC_MSG_RESULT([Darwin/Mac OS X]) 67 backend=darwin 68 threads=posix 69 ;; 70*-openbsd*) 71 AC_MSG_RESULT([OpenBSD]) 72 backend=openbsd 73 threads=posix 74 ;; 75*-netbsd*) 76 AC_MSG_RESULT([NetBSD]) 77 backend=netbsd 78 threads=posix 79 ;; 80*-mingw* | *msys*) 81 AC_MSG_RESULT([Windows]) 82 backend=windows 83 threads=windows 84 create_import_lib=yes 85 AM_CFLAGS="${AM_CFLAGS} -fno-omit-frame-pointer" 86 ;; 87*-cygwin*) 88 AC_MSG_RESULT([Cygwin (using Windows backend)]) 89 backend=windows 90 threads=posix 91 ;; 92*-haiku*) 93 AC_MSG_RESULT([Haiku]) 94 backend=haiku 95 threads=posix 96 ;; 97*-solaris*) 98 AC_MSG_RESULT([SunOS]) 99 backend=sunos 100 threads=posix 101 ;; 102*) 103 AC_MSG_ERROR([unsupported operating system $host]) 104esac 105 106case $backend in 107linux) 108 AC_DEFINE(OS_LINUX, 1, [Linux backend]) 109 AC_SUBST(OS_LINUX) 110 AC_SEARCH_LIBS([clock_gettime], [rt], [], [], [-pthread]) 111 AC_ARG_ENABLE([udev], 112 [AC_HELP_STRING([--enable-udev], [use udev for device enumeration and hotplug support (recommended) [default=yes]])], 113 [], [enable_udev=yes]) 114 if test "x$enable_udev" = xyes ; then 115 # system has udev. use it or fail! 116 AC_CHECK_HEADERS([libudev.h], [], [AC_MSG_ERROR([udev support requested but libudev header not installed])]) 117 AC_CHECK_LIB([udev], [udev_new], [], [AC_MSG_ERROR([udev support requested but libudev not installed])]) 118 AC_DEFINE(USE_UDEV, 1, [Use udev for device enumeration/hotplug]) 119 else 120 AC_CHECK_HEADERS([asm/types.h], [], []) 121 AC_CHECK_HEADERS([sys/socket.h linux/netlink.h], [], [AC_MSG_ERROR([Linux netlink headers not found])], [ 122#ifdef HAVE_ASM_TYPES_H 123#include <asm/types.h> 124#endif 125#include <sys/socket.h> 126]) 127 fi 128 AC_SUBST(USE_UDEV) 129 130 if test "x$is_backend_android" != xyes; then 131 THREAD_CFLAGS="-pthread" 132 LIBS="${LIBS} -pthread" 133 fi 134 135 AC_CHECK_HEADERS([poll.h]) 136 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument]) 137 ;; 138darwin) 139 AC_DEFINE(OS_DARWIN, 1, [Darwin backend]) 140 AC_SUBST(OS_DARWIN) 141 LIBS="-lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation" 142 LTLDFLAGS="${LTLDFLAGS} -Wl,-prebind" 143 AC_CHECK_HEADERS([poll.h]) 144 AC_CHECK_TYPE([nfds_t], 145 [AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])], 146 [AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument])], 147 [#include <poll.h>]) 148 ;; 149openbsd) 150 AC_DEFINE(OS_OPENBSD, 1, [OpenBSD backend]) 151 AC_SUBST(OS_OPENBSD) 152 THREAD_CFLAGS="-pthread" 153 LIBS="-pthread" 154 AC_CHECK_HEADERS([poll.h]) 155 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument]) 156 ;; 157sunos) 158 AC_DEFINE(OS_SUNOS, 1, [SunOS backend]) 159 AC_SUBST(OS_SUNOS) 160 THREAD_CFLAGS="-pthread" 161 LIBS="-pthread -ldevinfo" 162 AC_CHECK_HEADERS([poll.h]) 163 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument]) 164 ;; 165netbsd) 166 AC_DEFINE(OS_NETBSD, 1, [NetBSD backend]) 167 AC_SUBST(OS_NETBSD) 168 THREAD_CFLAGS="-pthread" 169 LIBS="-pthread" 170 AC_CHECK_HEADERS([poll.h]) 171 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument]) 172 ;; 173windows) 174 AC_DEFINE(OS_WINDOWS, 1, [Windows backend]) 175 AC_SUBST(OS_WINDOWS) 176 LIBS="" 177 LTLDFLAGS="${LTLDFLAGS} -avoid-version -Wl,--add-stdcall-alias" 178 AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument]) 179 AC_DEFINE([WINVER], 0x0501, [Oldest Windows version supported]) 180 AC_DEFINE([_WIN32_WINNT], 0x0501, [Oldest Windows version supported]) 181 ;; 182haiku) 183 AC_DEFINE(OS_HAIKU, 1, [Haiku backend]) 184 AC_SUBST(OS_HAIKU) 185 LIBS="${LIBS} -lbe" 186 AC_CHECK_HEADERS([poll.h]) 187 AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument]) 188 ;; 189esac 190 191AC_SUBST(LIBS) 192 193AM_CONDITIONAL(OS_LINUX, test "x$backend" = xlinux) 194AM_CONDITIONAL(OS_DARWIN, test "x$backend" = xdarwin) 195AM_CONDITIONAL(OS_OPENBSD, test "x$backend" = xopenbsd) 196AM_CONDITIONAL(OS_SUNOS, test "x$backend" = xsunos) 197AM_CONDITIONAL(OS_NETBSD, test "x$backend" = xnetbsd) 198AM_CONDITIONAL(OS_WINDOWS, test "x$backend" = xwindows) 199AM_CONDITIONAL(OS_HAIKU, test "x$backend" = xhaiku) 200AM_CONDITIONAL(THREADS_POSIX, test "x$threads" = xposix) 201AM_CONDITIONAL(CREATE_IMPORT_LIB, test "x$create_import_lib" = xyes) 202AM_CONDITIONAL(USE_UDEV, test "x$enable_udev" = xyes) 203if test "x$threads" = xposix; then 204 AC_DEFINE(THREADS_POSIX, 1, [Use POSIX Threads]) 205fi 206 207# timerfd 208AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=1], [timerfd_h=0]) 209AC_ARG_ENABLE([timerfd], 210 [AS_HELP_STRING([--enable-timerfd], 211 [use timerfd for timing [default=auto]])], 212 [use_timerfd=$enableval], [use_timerfd=auto]) 213 214if test "x$use_timerfd" = xyes -a "x$timerfd_h" = x0; then 215 AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required]) 216fi 217 218AC_CHECK_DECLS([TFD_NONBLOCK, TFD_CLOEXEC], [tfd_hdr_ok=yes], [tfd_hdr_ok=no], [#include <sys/timerfd.h>]) 219if test "x$use_timerfd" = xyes -a "x$tfd_hdr_ok" = xno; then 220 AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required]) 221fi 222 223AC_MSG_CHECKING([whether to use timerfd for timing]) 224if test "x$use_timerfd" = xno; then 225 AC_MSG_RESULT([no (disabled by user)]) 226else 227 if test "x$timerfd_h" = x1 -a "x$tfd_hdr_ok" = xyes; then 228 AC_MSG_RESULT([yes]) 229 AC_DEFINE(USBI_TIMERFD_AVAILABLE, 1, [timerfd headers available]) 230 else 231 AC_MSG_RESULT([no (header not available)]) 232 fi 233fi 234 235AC_CHECK_FUNCS([pipe2]) 236AC_CHECK_TYPES([struct timespec]) 237 238# Message logging 239AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])], 240 [log_enabled=$enableval], 241 [log_enabled=yes]) 242if test "x$log_enabled" != xno; then 243 AC_DEFINE([ENABLE_LOGGING], 1, [Message logging]) 244fi 245 246AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log], 247 [start with debug message logging enabled [default=no]])], 248 [debug_log_enabled=$enableval], 249 [debug_log_enabled=no]) 250if test "x$debug_log_enabled" != xno; then 251 AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Start with debug message logging enabled]) 252fi 253 254AC_ARG_ENABLE([system-log], [AS_HELP_STRING([--enable-system-log], 255 [output logging messages to system wide log, if supported by the OS [default=no]])], 256 [system_log_enabled=$enableval], 257 [system_log_enabled=no]) 258if test "x$system_log_enabled" != xno; then 259 AC_DEFINE([USE_SYSTEM_LOGGING_FACILITY], 1, [Enable output to system log]) 260 261 # Check if syslog is available in standard C library 262 AC_CHECK_HEADERS(syslog.h) 263 AC_CHECK_FUNC([syslog], [have_syslog=yes], [have_syslog=no]) 264 if test "x$have_syslog" != xno; then 265 AC_DEFINE([HAVE_SYSLOG_FUNC], 1, [syslog() function available]) 266 fi 267fi 268 269# Examples build 270AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build], 271 [build example applications [default=no]])], 272 [build_examples=$enableval], 273 [build_examples=no]) 274AM_CONDITIONAL(BUILD_EXAMPLES, test "x$build_examples" != xno) 275 276# Tests build 277AC_ARG_ENABLE([tests-build], [AS_HELP_STRING([--enable-tests-build], 278 [build test applications [default=no]])], 279 [build_tests=$enableval], 280 [build_tests=no]) 281AM_CONDITIONAL(BUILD_TESTS, test "x$build_tests" != xno) 282 283# headers not available on all platforms but required on others 284AC_CHECK_HEADERS([sys/time.h]) 285 286# sigaction not available on MinGW 287AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no]) 288AM_CONDITIONAL(HAVE_SIGACTION, test "x$have_sigaction" = xyes) 289 290# check for -fvisibility=hidden compiler support (GCC >= 3.4) 291saved_cflags="$CFLAGS" 292# -Werror required for cygwin 293CFLAGS="$CFLAGS -Werror -fvisibility=hidden" 294AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], 295 [VISIBILITY_CFLAGS="-fvisibility=hidden" 296 AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__((visibility("default")))], [Default visibility])], 297 [VISIBILITY_CFLAGS="" 298 AC_DEFINE([DEFAULT_VISIBILITY], [], [Default visibility])], 299 ]) 300CFLAGS="$saved_cflags" 301 302# check for -Wno-pointer-sign compiler support (GCC >= 4) 303saved_cflags="$CFLAGS" 304CFLAGS="$CFLAGS -Wno-pointer-sign" 305AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], 306 nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="") 307CFLAGS="$saved_cflags" 308 309# check for -std=gnu99 compiler support 310saved_cflags="$CFLAGS" 311CFLAGS="-std=gnu99" 312AC_MSG_CHECKING([whether CC supports -std=gnu99]) 313AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], 314 [AC_MSG_RESULT([yes])] 315 [AM_CFLAGS="${AM_CFLAGS} -std=gnu99"], 316 [AC_MSG_RESULT([no])] 317) 318CFLAGS="$saved_cflags" 319 320AM_CFLAGS="${AM_CFLAGS} -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow ${THREAD_CFLAGS} ${VISIBILITY_CFLAGS}" 321 322AC_SUBST(AM_CFLAGS) 323AC_SUBST(LTLDFLAGS) 324 325AC_CONFIG_FILES([libusb-1.0.pc]) 326AC_CONFIG_FILES([Makefile]) 327AC_CONFIG_FILES([libusb/Makefile]) 328AC_CONFIG_FILES([examples/Makefile]) 329AC_CONFIG_FILES([tests/Makefile]) 330AC_CONFIG_FILES([doc/Makefile]) 331AC_CONFIG_FILES([doc/doxygen.cfg]) 332AC_OUTPUT 333