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],[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
  24 lt_current=1
  25 lt_revision=0
  26 lt_age=1
  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
  49 dnl on linux-android platform, some functions are in different places
  50 case $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
  57 esac
  58
  59 case $host in
  60 *-linux* | *-uclinux*)
  61         AC_MSG_RESULT([Linux])
  62         backend=linux
  63         threads=posix
  64         ;;
  65 *-darwin*)
  66         AC_MSG_RESULT([Darwin/Mac OS X])
  67         backend=darwin
  68         threads=posix
  69         ;;
  70 *-openbsd*)
  71         AC_MSG_RESULT([OpenBSD])
  72         backend=openbsd
  73         threads=posix
  74         ;;
  75 *-netbsd*)
  76         AC_MSG_RESULT([NetBSD])
  77         backend=netbsd
  78         threads=posix
  79         ;;
  80 *-mingw* | *msys*)
  81         AC_MSG_RESULT([Windows])
  82         backend=windows
  83         threads=windows
  84         create_import_lib=yes
  85         AM_CFLAGS="${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])
 104 esac
 105
 106 case $backend in
 107 linux)
 108         AC_DEFINE(OS_LINUX, 1, [Linux backend])
 109         AC_SUBST(OS_LINUX)
 110         AC_SEARCH_LIBS([clock_gettime2], [rt], [], [], [-pthread])
 111         AC_ARG_ENABLE([udev],
 112                 [AC_HELP_STRING([--enable-udev], [use udev for device enumeration and hotplug support (recommended) [default=yes]])],
 113                 [], [enable_udev=yes])
 114                 if test "x$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         ;;
 138 darwin)
 139         AC_DEFINE(OS_DARWIN, 1, [Darwin backend])
 140         AC_SUBST(OS_DARWIN)
 141         LIBS="-lobjc -Wl,-framework,IOKit -Wl,-framework,CoreFoundation"
 142         LTLDFLAGS="${LTLDFLAGS} -Wl,-prebind"
 143         AC_CHECK_HEADERS([poll.h])
 144         AC_CHECK_TYPE([nfds_t],
 145                 [AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])],
 146                 [AC_DEFINE([POLL_NFDS_TYPE],[unsigned int],[type of second poll() argument])],
 147                 [#include <poll.h>])
 148         ;;
 149 openbsd)
 150         AC_DEFINE(OS_OPENBSD, 1, [OpenBSD backend])
 151         AC_SUBST(OS_OPENBSD)
 152         THREAD_CFLAGS="-pthread"
 153         LIBS="-pthread"
 154         AC_CHECK_HEADERS([poll.h])
 155         AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
 156         ;;
 157 sunos)
 158         AC_DEFINE(OS_SUNOS, 1, [SunOS backend])
 159         AC_SUBST(OS_SUNOS)
 160         THREAD_CFLAGS="-pthread"
 161         LIBS="-pthread -ldevinfo"
 162         AC_CHECK_HEADERS([poll.h])
 163         AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
 164         ;;
 165 netbsd)
 166         AC_DEFINE(OS_NETBSD, 1, [NetBSD backend])
 167         AC_SUBST(OS_NETBSD)
 168         THREAD_CFLAGS="-pthread"
 169         LIBS="-pthread"
 170         AC_CHECK_HEADERS([poll.h])
 171         AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
 172         ;;
 173 windows)
 174         AC_DEFINE(OS_WINDOWS, 1, [Windows backend])
 175         AC_SUBST(OS_WINDOWS)
 176         LIBS=""
 177         LTLDFLAGS="${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
 181         AC_ARG_ENABLE([usbdk],
 182                 [AC_HELP_STRING([--enable-usbdk], [use UsbDk Windows backend [default=no]])],
 183                 [], [enable_usbdk=no])
 184                 if test "x$enable_usbdk" = xyes; then
 185                     AC_DEFINE(USE_USBDK, 1, [Use UsbDk Windows backend])
 186                 fi
 187                 AC_SUBST(USE_USBDK)
 188         ;;
 189 haiku)
 190         AC_DEFINE(OS_HAIKU, 1, [Haiku backend])
 191         AC_SUBST(OS_HAIKU)
 192         LIBS="${LIBS} -lbe"
 193         AC_CHECK_HEADERS([poll.h])
 194         AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
 195         ;;
 196 esac
 197
 198 AC_SUBST(LIBS)
 199
 200 AM_CONDITIONAL(OS_LINUX, test "x$backend" = xlinux)
 201 AM_CONDITIONAL(OS_DARWIN, test "x$backend" = xdarwin)
 202 AM_CONDITIONAL(OS_OPENBSD, test "x$backend" = xopenbsd)
 203 AM_CONDITIONAL(OS_SUNOS, test "x$backend" = xsunos)
 204 AM_CONDITIONAL(OS_NETBSD, test "x$backend" = xnetbsd)
 205 AM_CONDITIONAL(OS_WINDOWS, test "x$backend" = xwindows)
 206 AM_CONDITIONAL(OS_HAIKU, test "x$backend" = xhaiku)
 207 AM_CONDITIONAL(THREADS_POSIX, test "x$threads" = xposix)
 208 AM_CONDITIONAL(CREATE_IMPORT_LIB, test "x$create_import_lib" = xyes)
 209 AM_CONDITIONAL(USE_UDEV, test "x$enable_udev" = xyes)
 210 AM_CONDITIONAL(USE_USBDK, test "x$enable_usbdk" = xyes)
 211 if test "x$threads" = xposix; then
 212         AC_DEFINE(THREADS_POSIX, 1, [Use POSIX Threads])
 213 fi
 214
 215 # timerfd
 216 AC_CHECK_HEADER([sys/timerfd.h], [timerfd_h=1], [timerfd_h=0])
 217 AC_ARG_ENABLE([timerfd],
 218         [AS_HELP_STRING([--enable-timerfd],
 219                 [use timerfd for timing [default=auto]])],
 220         [use_timerfd=$enableval], [use_timerfd=auto])
 221
 222 if test "x$use_timerfd" = xyes -a "x$timerfd_h" = x0; then
 223         AC_MSG_ERROR([timerfd header not available; glibc 2.9+ required])
 224 fi
 225
 226 AC_CHECK_DECL([TFD_NONBLOCK], [tfd_hdr_ok=yes], [tfd_hdr_ok=no], [#include <sys/timerfd.h>])
 227 if test "x$use_timerfd" = xyes -a "x$tfd_hdr_ok" = xno; then
 228         AC_MSG_ERROR([timerfd header not usable; glibc 2.9+ required])
 229 fi
 230
 231 AC_MSG_CHECKING([whether to use timerfd for timing])
 232 if test "x$use_timerfd" = xno; then
 233         AC_MSG_RESULT([no (disabled by user)])
 234 else
 235         if test "x$timerfd_h" = x1 -a "x$tfd_hdr_ok" = xyes; then
 236                 AC_MSG_RESULT([yes])
 237                 AC_DEFINE(USBI_TIMERFD_AVAILABLE, 1, [timerfd headers available])
 238         else
 239                 AC_MSG_RESULT([no (header not available)])
 240         fi
 241 fi
 242
 243 AC_CHECK_TYPES([struct timespec])
 244
 245 # Message logging
 246 AC_ARG_ENABLE([log], [AS_HELP_STRING([--disable-log], [disable all logging])],
 247         [log_enabled=$enableval],
 248         [log_enabled=yes])
 249 if test "x$log_enabled" != xno; then
 250         AC_DEFINE([ENABLE_LOGGING], 1, [Message logging])
 251 fi
 252
 253 AC_ARG_ENABLE([debug-log], [AS_HELP_STRING([--enable-debug-log],
 254         [start with debug message logging enabled [default=no]])],
 255         [debug_log_enabled=$enableval],
 256         [debug_log_enabled=no])
 257 if test "x$debug_log_enabled" != xno; then
 258         AC_DEFINE([ENABLE_DEBUG_LOGGING], 1, [Start with debug message logging enabled])
 259 fi
 260
 261 AC_ARG_ENABLE([system-log], [AS_HELP_STRING([--enable-system-log],
 262         [output logging messages to system wide log, if supported by the OS [default=no]])],
 263         [system_log_enabled=$enableval],
 264         [system_log_enabled=no])
 265 if test "x$system_log_enabled" != xno; then
 266         AC_DEFINE([USE_SYSTEM_LOGGING_FACILITY], 1, [Enable output to system log])
 267
 268         # Check if syslog is available in standard C library
 269         AC_CHECK_HEADERS(syslog.h)
 270         AC_CHECK_FUNC([syslog], [have_syslog=yes], [have_syslog=no])
 271         if test "x$have_syslog" != xno; then
 272                 AC_DEFINE([HAVE_SYSLOG_FUNC], 1, [syslog() function available])
 273         fi
 274 fi
 275
 276 # Examples build
 277 AC_ARG_ENABLE([examples-build], [AS_HELP_STRING([--enable-examples-build],
 278         [build example applications [default=no]])],
 279         [build_examples=$enableval],
 280         [build_examples=no])
 281 AM_CONDITIONAL(BUILD_EXAMPLES, test "x$build_examples" != xno)
 282
 283 # Tests build
 284 AC_ARG_ENABLE([tests-build], [AS_HELP_STRING([--enable-tests-build],
 285         [build test applications [default=no]])],
 286         [build_tests=$enableval],
 287         [build_tests=no])
 288 AM_CONDITIONAL(BUILD_TESTS, test "x$build_tests" != xno)
 289
 290 # headers not available on all platforms but required on others
 291 AC_CHECK_HEADERS([sys/time.h])
 292
 293 # sigaction not available on MinGW
 294 AC_CHECK_FUNC([sigaction], [have_sigaction=yes], [have_sigaction=no])
 295 AM_CONDITIONAL(HAVE_SIGACTION, test "x$have_sigaction" = xyes)
 296
 297 # check for -fvisibility=hidden compiler support (GCC >= 3.4)
 298 saved_cflags="$CFLAGS"
 299 # -Werror required for cygwin
 300 CFLAGS="$CFLAGS -Werror -fvisibility=hidden"
 301 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
 302         [VISIBILITY_CFLAGS="-fvisibility=hidden"
 303          AC_DEFINE([DEFAULT_VISIBILITY], [__attribute__((visibility("default")))], [Default visibility])],
 304         [VISIBILITY_CFLAGS=""
 305          AC_DEFINE([DEFAULT_VISIBILITY], [], [Default visibility])],
 306         ])
 307 CFLAGS="$saved_cflags"
 308
 309 # check for -Wno-pointer-sign compiler support (GCC >= 4)
 310 saved_cflags="$CFLAGS"
 311 CFLAGS="$CFLAGS -Wno-pointer-sign"
 312 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
 313         nopointersign_cflags="-Wno-pointer-sign", nopointersign_cflags="")
 314 CFLAGS="$saved_cflags"
 315
 316 # check for -std=gnu99 compiler support
 317 saved_cflags="$CFLAGS"
 318 CFLAGS="-std=gnu99"
 319 AC_MSG_CHECKING([whether CC supports -std=gnu99])
 320 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
 321     [AC_MSG_RESULT([yes])]
 322     [AM_CFLAGS="${AM_CFLAGS} -std=gnu99"],
 323     [AC_MSG_RESULT([no])]
 324 )
 325 CFLAGS="$saved_cflags"
 326
 327 AM_CFLAGS="${AM_CFLAGS} -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow ${THREAD_CFLAGS} ${VISIBILITY_CFLAGS}"
 328
 329 AC_SUBST(AM_CFLAGS)
 330 AC_SUBST(LTLDFLAGS)
 331
 332 AC_CONFIG_FILES([libusb-1.0.pc])
 333 AC_CONFIG_FILES([Makefile])
 334 AC_CONFIG_FILES([libusb/Makefile])
 335 AC_CONFIG_FILES([examples/Makefile])
 336 AC_CONFIG_FILES([tests/Makefile])
 337 AC_CONFIG_FILES([doc/Makefile])
 338 AC_CONFIG_FILES([doc/doxygen.cfg])
 339 AC_OUTPUT