configure.ac

   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
  11 dnl in AC_INIT.
  12
  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])
  17
  18 AC_INIT([libusb-1.0], [LIBUSB_MAJOR[.]LIBUSB_MINOR[.]LIBUSB_MICRO[]LIBUSB_RC], [libusb-devel@lists.sourceforge.net], [libusb-1.0], [http://libusb.info])
  19
  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
  24 lt_current=2
  25 lt_revision=0
  26 lt_age=2
  27 LTLDFLAGS="-version-info ${lt_current}:${lt_revision}:${lt_age}"
  28
  29 AM_INIT_AUTOMAKE
  30
  31 AC_CONFIG_SRCDIR([libusb/core.c])
  32 AC_CONFIG_MACRO_DIR([m4])
  33 AC_CONFIG_HEADERS([config.h])
  34 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
  35
  36 AC_PREREQ([2.69])
  37 AC_PROG_CC
  38 AC_PROG_CXX
  39 LT_INIT
  40 LT_LANG([Windows Resource])
  41 AC_C_INLINE
  42 AM_PROG_CC_C_O
  43 AC_DEFINE([_GNU_SOURCE], [1], [Use GNU extensions])
  44
  45 LTLDFLAGS="${LTLDFLAGS} -no-undefined"
  46
  47 AC_MSG_CHECKING([operating system])
  48 case $host in
  49 *-darwin*)
  50         AC_MSG_RESULT([Darwin/Mac OS X])
  51         backend=darwin
  52         poll=posix
  53         threads=posix
  54         ;;
  55 *-haiku*)
  56         AC_MSG_RESULT([Haiku])
  57         backend=haiku
  58         poll=posix
  59         threads=posix
  60         ;;
  61 *-linux* | *-uclinux*)
  62         dnl on linux-android platform, some functions are in different places
  63         case $host in
  64         *-linux-android*)
  65                 AC_MSG_RESULT([Linux (Android system)])
  66                 is_backend_android=yes
  67                 ;;
  68         *)
  69                 AC_MSG_RESULT([Linux])
  70                 is_backend_android=no
  71                 ;;
  72         esac
  73         backend=linux
  74         poll=posix
  75         threads=posix
  76         ;;
  77 *-netbsd*)
  78         AC_MSG_RESULT([NetBSD])
  79         backend=netbsd
  80         poll=posix
  81         threads=posix
  82         ;;
  83 *-openbsd*)
  84         AC_MSG_RESULT([OpenBSD])
  85         backend=openbsd
  86         poll=posix
  87         threads=posix
  88         ;;
  89 *-solaris*)
  90         AC_MSG_RESULT([SunOS])
  91         backend=sunos
  92         poll=posix
  93         threads=posix
  94         ;;
  95 *-cygwin*)
  96         AC_MSG_RESULT([Windows (using Cygwin)])
  97         backend=windows
  98         poll=windows
  99         threads=posix
 100         ;;
 101 *-mingw* | *msys*)
 102         AC_MSG_RESULT([Windows])
 103         backend=windows
 104         poll=windows
 105         threads=windows
 106         test "x$enable_shared" = xyes && create_import_lib=yes
 107         AM_CFLAGS="${AM_CFLAGS} -fno-omit-frame-pointer"
 108         ;;
 109 *)
 110         AC_MSG_RESULT([Null])
 111         backend="null"
 112         poll=posix
 113         threads="posix"
 114         ;;
 115 esac
 116
 117 case $backend in
 118 darwin)
 119         AC_CHECK_FUNCS([pthread_threadid_np])
 120         LIBS="-lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation"
 121         LTLDFLAGS="${LTLDFLAGS} -Wl,-prebind"
 122         ;;
 123 haiku)
 124         LIBS="-lbe"
 125         ;;
 126 linux)
 127         AC_SEARCH_LIBS([clock_gettime], [rt], [], [], [-pthread])
 128         AC_ARG_ENABLE([udev],
 129                 [AC_HELP_STRING([--enable-udev], [use udev for device enumeration and hotplug support (recommended) [default=yes]])],
 130                 [], [enable_udev=yes])
 131         if test "x$enable_udev" = xyes ; then
 132                 dnl system has udev. use it or fail!
 133                 AC_CHECK_HEADER([libudev.h], [], [AC_MSG_ERROR([udev support requested but libudev header not installed])])
 134                 AC_CHECK_LIB([udev], [udev_new], [], [AC_MSG_ERROR([udev support requested but libudev not installed])])
 135         else
 136                 AC_CHECK_HEADERS([asm/types.h])
 137                 AC_CHECK_HEADER([linux/netlink.h], [], [AC_MSG_ERROR([Linux netlink header not found])])
 138                 AC_CHECK_HEADER([sys/socket.h], [], [AC_MSG_ERROR([Linux socket header not found])])
 139         fi
 140         if test "x$is_backend_android" != xyes; then
 141                 THREAD_CFLAGS="-pthread"
 142                 LIBS="${LIBS} -pthread"
 143         fi
 144         AC_CHECK_FUNCS([pthread_setname_np])
 145         ;;
 146 netbsd)
 147         THREAD_CFLAGS="-pthread"
 148         LIBS="-pthread"
 149         ;;
 150 null)
 151         THREAD_CFLAGS="-pthread"
 152         LIBS="-pthread"
 153         ;;
 154 openbsd)
 155         THREAD_CFLAGS="-pthread"
 156         LIBS="-pthread"
 157         ;;
 158 sunos)
 159         THREAD_CFLAGS="-pthread"
 160         LIBS="-pthread -ldevinfo"
 161         ;;
 162 windows)
 163         AC_CHECK_TYPES([struct timespec], [], [], [[#include <time.h>]])
 164         LIBS=""
 165         LTLDFLAGS="${LTLDFLAGS} -avoid-version -Wl,--add-stdcall-alias"
 166         AC_DEFINE([_WIN32_WINNT], [_WIN32_WINNT_VISTA], [Oldest Windows version supported (Vista)])
 167         ;;
 168 *)
 169         AC_MSG_ERROR([Unknown backend])
 170         ;;
 171 esac
 172
 173 AC_SUBST(LIBS)
 174
 175 AM_CONDITIONAL([OS_DARWIN], [test "x$backend" = xdarwin])
 176 AM_CONDITIONAL([OS_HAIKU], [test "x$backend" = xhaiku])
 177 AM_CONDITIONAL([OS_LINUX], [test "x$backend" = xlinux])
 178 AM_CONDITIONAL([OS_NETBSD], [test "x$backend" = xnetbsd])
 179 AM_CONDITIONAL([OS_NULL], [test "x$backend" = xnull])
 180 AM_CONDITIONAL([OS_OPENBSD], [test "x$backend" = xopenbsd])
 181 AM_CONDITIONAL([OS_SUNOS], [test "x$backend" = xsunos])
 182 AM_CONDITIONAL([OS_WINDOWS], [test "x$backend" = xwindows])
 183 AM_CONDITIONAL([POLL_POSIX], [test "x$poll" = xposix])
 184 AM_CONDITIONAL([POLL_WINDOWS], [test "x$poll" = xwindows])
 185 AM_CONDITIONAL([THREADS_POSIX], [test "x$threads" = xposix])
 186 AM_CONDITIONAL([THREADS_WINDOWS], [test "x$threads" = xwindows])
 187 AM_CONDITIONAL([CREATE_IMPORT_LIB], [test "x$create_import_lib" = xyes])
 188 AM_CONDITIONAL([USE_UDEV], [test "x$enable_udev" = xyes])
 189
 190 if test "x$poll" = xposix; then
 191         AC_DEFINE([POLL_POSIX], [1], [Use POSIX poll() implementation])
 192         AC_CHECK_TYPES([nfds_t], [], [], [[#include <poll.h>]])
 193         AC_CHECK_FUNCS([pipe2])
 194 elif test "x$poll" = xwindows; then
 195         AC_DEFINE([POLL_WINDOWS], [1], [Use Windows poll() implementation])
 196 else
 197         AC_MSG_ERROR([Unknown poll implementation])
 198 fi
 199
 200 if test "x$threads" = xposix; then
 201         AC_DEFINE([THREADS_POSIX], [1], [Use POSIX Threads])
 202 elif test "x$threads" = xwindows; then
 203         AC_DEFINE([THREADS_WINDOWS], [1], [Use Windows Threads])
 204 else
 205         AC_MSG_ERROR([Unknown threads implementation])
 206 fi
 207
 208 dnl headers not available on all platforms but required on others
 209 AC_CHECK_HEADERS([sys/time.h])
 210
 211 dnl the clock_gettime() function needs certain clock IDs defined
 212 AC_CHECK_FUNCS([clock_gettime], [have_clock_gettime=yes], [have_clockgettime=no])
 213 if test "x$have_clock_gettime" = xyes; then
 214         AC_CHECK_DECL([CLOCK_REALTIME], [], [AC_MSG_ERROR([C library headers missing definition for CLOCK_REALTIME])], [[#include <time.h>]])
 215         AC_CHECK_DECL([CLOCK_MONOTONIC], [], [AC_MSG_ERROR([C library headers missing definition for CLOCK_MONOTONIC])], [[#include <time.h>]])
 216 elif test "x$backend" != xdarwin && test "x$backend" != xwindows; then
 217        AC_MSG_ERROR([clock_gettime() is required on this platform])
 218 fi
 219
 220 dnl timerfd support
 221 if test "x$backend" = xlinux || test "x$backend" = xsunos; then
 222         AC_ARG_ENABLE([timerfd],
 223                 [AS_HELP_STRING([--enable-timerfd], [use timerfd for timing [default=auto]])],
 224                 [use_timerfd=$enableval],
 225                 [use_timerfd=auto])
 226         if test "x$use_timerfd" != xno; then
 227                 AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=yes], [timerfd_h=no])
 228                 if test "x$timerfd_h" = xyes; then
 229                         AC_CHECK_DECLS([TFD_NONBLOCK, TFD_CLOEXEC], [timerfd_h_ok=yes], [timerfd_h_ok=no], [[#include <sys/timerfd.h>]])
 230                         if test "x$timerfd_h_ok" = xyes; then
 231                                 AC_CHECK_FUNC([timerfd_create], [timerfd_ok=yes], [timerfd_ok=no])
 232                                 if test "x$timerfd_ok" = xyes; then
 233                                         AC_DEFINE([HAVE_TIMERFD], [1], [Define if the system has timerfd functionality])
 234                                 elif test "x$use_timerfd" = xyes; then
 235                                         AC_MSG_ERROR([timerfd_create() function not found; glibc 2.9+ required])
 236                                 fi
 237                         elif test "x$use_timerfd" = xyes; then
 238                                 AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required])
 239                         fi
 240                 elif test "x$use_timerfd" = xyes; then
 241                         AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required])
 242                 fi
 243         fi
 244         AC_MSG_CHECKING([whether to use timerfd for timing])
 245         if test "x$use_timerfd" = xno; then
 246                 AC_MSG_RESULT([no (disabled by user)])
 247         elif test "x$timerfd_h" = xno; then
 248                 AC_MSG_RESULT([no (header not usable)])
 249         elif test "x$timerfd_h_ok" = xno; then
 250                 AC_MSG_RESULT([no (header not available)])
 251         elif test "x$timerfd_ok" = xno; then
 252                 AC_MSG_RESULT([no (functions not available)])
 253         else
 254                 AC_MSG_RESULT([yes])
 255         fi
 256 fi
 257
 258 dnl Message logging
 259 AC_ARG_ENABLE([log],
 260         [AS_HELP_STRING([--disable-log], [disable all logging])],
 261         [log_enabled=$enableval],
 262         [log_enabled=yes])
 263 if test "x$log_enabled" != xno; then
 264         AC_DEFINE([ENABLE_LOGGING], [1], [Message logging])
 265 fi
 266
 267 AC_ARG_ENABLE([debug-log],
 268         [AS_HELP_STRING([--enable-debug-log], [start with debug message logging enabled [default=no]])],
 269         [debug_log_enabled=$enableval],
 270         [debug_log_enabled=no])
 271 if test "x$debug_log_enabled" != xno; then
 272         AC_DEFINE([ENABLE_DEBUG_LOGGING], [1], [Start with debug message logging enabled])
 273 fi
 274
 275 AC_ARG_ENABLE([system-log],
 276         [AS_HELP_STRING([--enable-system-log], [output logging messages to system wide log, if supported by the OS [default=no]])],
 277         [system_log_enabled=$enableval],
 278         [system_log_enabled=no])
 279 if test "x$system_log_enabled" != xno; then
 280         AC_DEFINE([USE_SYSTEM_LOGGING_FACILITY], [1], [Enable output to system log])
 281         if test "x$backend" != xwindows && test "x$is_backend_android" != xyes; then
 282                 dnl Check if syslog is available in standard C library
 283                 AC_CHECK_HEADER([syslog.h], [syslog_h=yes], [syslog_h=no])
 284                 if test "x$syslog_h" = xyes; then
 285                         AC_CHECK_FUNCS([syslog])
 286                 fi
 287         fi
 288 fi
 289
 290 dnl Examples build
 291 AC_ARG_ENABLE([examples-build],
 292         [AS_HELP_STRING([--enable-examples-build], [build example applications [default=no]])],
 293         [build_examples=$enableval],
 294         [build_examples=no])
 295 AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$build_examples" != xno])
 296
 297 dnl Tests build
 298 AC_ARG_ENABLE([tests-build],
 299         [AS_HELP_STRING([--enable-tests-build], [build test applications [default=no]])],
 300         [build_tests=$enableval],
 301         [build_tests=no])
 302 AM_CONDITIONAL([BUILD_TESTS], [test "x$build_tests" != xno])
 303
 304 dnl sigaction needed for some example programs
 305 if test "x$build_examples" != xno; then
 306         AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no])
 307 fi
 308 AM_CONDITIONAL([HAVE_SIGACTION], [test "x$have_sigaction" = xyes])
 309
 310 dnl check for -fvisibility=hidden compiler support (GCC >= 3.4)
 311 saved_CFLAGS="${CFLAGS}"
 312 dnl -Werror required for cygwin
 313 CFLAGS="${CFLAGS} -Werror -fvisibility=hidden"
 314 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
 315         [VISIBILITY_CFLAGS="-fvisibility=hidden"
 316          AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__((visibility("default")))], [Default visibility])],
 317         [VISIBILITY_CFLAGS=""
 318          AC_DEFINE([DEFAULT_VISIBILITY], [], [Default visibility])],
 319         ])
 320 CFLAGS="${saved_CFLAGS}"
 321
 322 dnl check for -Wno-pointer-sign compiler support (GCC >= 4)
 323 saved_CFLAGS="${CFLAGS}"
 324 CFLAGS="${CFLAGS} -Wno-pointer-sign"
 325 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
 326         nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
 327 CFLAGS="${saved_CFLAGS}"
 328
 329 dnl check for -std=gnu11 compiler support
 330 saved_CFLAGS="${CFLAGS}"
 331 CFLAGS="-std=gnu11"
 332 AC_MSG_CHECKING([whether CC supports -std=gnu11])
 333 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
 334         [AC_MSG_RESULT([yes])
 335          AM_CFLAGS="${AM_CFLAGS} -std=gnu11"],
 336         [AC_MSG_RESULT([no])])
 337 CFLAGS="${saved_CFLAGS}"
 338
 339 dnl check for _Thread_local compiler support
 340 if test "x$backend" != xwindows; then
 341         saved_CFLAGS="${CFLAGS}"
 342         saved_LDFLAGS="${LDFLAGS}"
 343         CFLAGS="${CFLAGS} -fPIC"
 344         LDFLAGS="${LDFLAGS} -shared"
 345         AC_MSG_CHECKING([whether CC supports _Thread_local])
 346         AC_LINK_IFELSE([AC_LANG_PROGRAM([], [static _Thread_local int v])],
 347                 [AC_MSG_RESULT([yes])
 348                  AC_DEFINE([HAVE_CC_THREAD_LOCAL], [1], [Define to 1 if the compiler supports _Thread_local.])],
 349                 [AC_MSG_RESULT([no])])
 350         CFLAGS="${saved_CFLAGS}"
 351         LDFLAGS="${saved_LDFLAGS}"
 352 fi
 353
 354 AM_CFLAGS="${AM_CFLAGS} -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration ${nopointersign_cflags} -Wshadow ${THREAD_CFLAGS} ${VISIBILITY_CFLAGS}"
 355
 356 AC_SUBST(AM_CFLAGS)
 357 AC_SUBST(LTLDFLAGS)
 358
 359 dnl set name of html output directory for doxygen
 360 AC_SUBST(DOXYGEN_HTMLDIR, [api-1.0])
 361
 362 AC_CONFIG_FILES([libusb-1.0.pc])
 363 AC_CONFIG_FILES([Makefile])
 364 AC_CONFIG_FILES([libusb/Makefile])
 365 AC_CONFIG_FILES([examples/Makefile])
 366 AC_CONFIG_FILES([tests/Makefile])
 367 AC_CONFIG_FILES([doc/Makefile])
 368 AC_CONFIG_FILES([doc/doxygen.cfg])
 369 AC_OUTPUT