configure.ac

   1 AC_PREREQ(2.59)
   2 AC_INIT([libcec], [1:9:0], [http://libcec.pulse-eight.com/])
   3 AC_CONFIG_HEADERS([config.h])
   4 AH_TOP([#pragma once])
   5
   6 AM_INIT_AUTOMAKE([foreign])
   7 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES])
   8
   9 AM_INIT_AUTOMAKE(AC_PACKAGE_NAME, AC_PACKAGE_VERSION)
  10
  11 AC_CANONICAL_HOST
  12
  13 cflags_reset="$CFLAGS"
  14 AC_LANG(C++)
  15 AC_PROG_CXX
  16 AC_PROG_LIBTOOL
  17 AC_PROG_INSTALL
  18 AC_LIBTOOL_DLOPEN
  19 CFLAGS="$cflags_reset"
  20
  21 msg_pkg_config_missing="'pkg-config' is missing - adapter detection will not be available"
  22 msg_pthread_missing="required library 'pthread' is missing"
  23 msg_dl_missing="required library 'dl' is missing"
  24 msg_udev_missing="library 'udev' is missing - adapter detection will not be available"
  25 msg_dirent_missing="dirent.h header is missing - adapter detection will not be available"
  26 msg_lockdev_missing="required library 'liblockdev' is missing"
  27 msg_rpi_api_missing="Raspberry Pi API not found or incompatible with libCEC"
  28 msg_rpi_will_check="will check for RPi support"
  29 msg_rpi_unsupported_target="will not check for RPi support (unsupported cpu: ${host_cpu})"
  30 msg_required_header_missing="required header is missing"
  31
  32 ## debugging symbols
  33 AC_ARG_ENABLE([debug],
  34   [AS_HELP_STRING([--enable-debug],
  35   [include debug symbols (default is no)])],
  36   [use_debug=$enableval],
  37   [use_debug=no])
  38
  39 ## optimisation
  40 AC_ARG_ENABLE([optimisation],
  41   [AS_HELP_STRING([--enable-optimisation],
  42   [optimisation flag (default is yes)])],
  43   [use_optimisation=$enableval],
  44   [use_optimisation=yes])
  45
  46 ## Raspberry Pi support
  47 AC_ARG_ENABLE([rpi],
  48   [AS_HELP_STRING([--enable-rpi],
  49   [enable support for the Raspberry Pi (default is auto)])],
  50   [use_rpi=$enableval],
  51   [use_rpi=auto])
  52
  53 ## Optional path to the RPi's dev headers
  54 AC_ARG_WITH([rpi-include-path],
  55   [AS_HELP_STRING([--with-rpi-include-path],
  56     [location of the Raspberry Pi headers (location of /opt/vc/include, default is auto)])],
  57   [RPI_CFLAGS="-I$withval -I$withval/interface/vcos/pthreads"])
  58
  59 ## Optional path to libbcm_host.so
  60 AC_ARG_WITH([rpi-lib-path],
  61   [AS_HELP_STRING([--with-rpi-lib-path],
  62     [location of the Raspberry Pi libraries (location of libbcm_host.so, default is auto)])],
  63   [RPI_LIBS="-L$withval"])
  64
  65 ## only check for the RPi API on ARM targets
  66 if test "x$use_rpi" != "xno"; then
  67   case "${host_cpu}" in
  68     arm*)
  69       AC_MSG_NOTICE($msg_rpi_will_check)
  70       ;;
  71     *)
  72       if test "x$use_rpi" = "xyes"; then
  73         AC_MSG_ERROR($msg_rpi_unsupported_target)
  74       else
  75         AC_MSG_NOTICE($msg_rpi_unsupported_target)
  76       fi
  77       use_rpi="no"
  78       ;;
  79   esac
  80 fi
  81
  82 ## add the top dir and include to the include path, so we can include config.h and cec.h
  83 CPPFLAGS="$CPPFLAGS -I\$(abs_top_srcdir)/src -I\$(abs_top_srcdir)/include"
  84
  85 ## search for pkg-config
  86 AC_CHECK_PROG(HAVE_PKG_CONFIG, pkg-config, yes)
  87 if test "x$HAVE_PKG_CONFIG" != "xyes" ; then
  88   AC_MSG_WARN($msg_pkg_config_missing)
  89 fi
  90
  91 ## search for pthread, required by all targets
  92 AC_SEARCH_LIBS([pthread_create],[pthread],,AC_MSG_ERROR($msg_pthread_missing))
  93 AC_CHECK_FUNCS([pthread_mutexattr_init pthread_cond_init pthread_cond_destroy pthread_cond_signal pthread_cond_broadcast pthread_cond_wait pthread_cond_timedwait])
  94
  95 ## search for dlopen, required by all targets
  96 AC_SEARCH_LIBS([dlopen], [dl],
  97   [test "$ac_cv_search_dlopen" = "none required" || LIBS_DL=$ac_cv_search_dlopen],
  98   AC_MSG_ERROR($msg_dl_missing))
  99 AC_CHECK_FUNCS([dlopen dlcose dlsym])
 100
 101 ## platform specific libs, required by all targets
 102 case "${host}" in
 103   *-*-linux*)
 104     # for timeutils
 105     LIBS="$LIBS -lrt"
 106     ;;
 107   *-apple-darwin*)
 108     LIBS="$LIBS -framework CoreVideo -framework IOKit"
 109     ;;
 110 esac
 111
 112 ## we found all the libs and headers that we need for the client applications
 113 libs_client="$LIBS"
 114
 115 ## search for udev, lockdev and the RPi API, only required by libCEC
 116 use_udev="no"
 117 use_adapter_detection="yes"
 118 case "${host}" in
 119   *-*-linux*)
 120     ## search for udev if pkg-config was found
 121     if test "x$HAVE_PKG_CONFIG" = "xyes" ; then
 122       PKG_CHECK_MODULES([UDEV],[libudev],use_udev="yes",AC_MSG_WARN($msg_udev_missing))
 123     fi
 124
 125     ## we need dirent.h on linux too
 126     if test "$use_udev" = "yes"; then
 127       AC_CHECK_HEADER(dirent.h,,[use_udev="no";AC_MSG_WARN($msg_dirent_missing)])
 128     fi
 129
 130     if test "$use_udev" != "yes"; then
 131       use_adapter_detection="no"
 132     fi
 133
 134     ## search for lockdev
 135     AC_CHECK_HEADER(lockdev.h,,AC_MSG_ERROR($msg_lockdev_missing))
 136     AC_CHECK_LIB(lockdev,dev_unlock,,AC_MSG_ERROR($msg_lockdev_missing))
 137
 138     AC_CHECK_HEADER(time.h,,AC_MSG_ERROR($msg_required_header_missing))
 139     AC_CHECK_HEADER(sys/prctl.h,,AC_MSG_ERROR($msg_required_header_missing))
 140
 141     ## search for the RPi API. we need to check a couple of things to see if
 142     ## it's recent enough and contains the calls needed for libCEC to operate
 143     ## correctly.
 144     if test "x$use_rpi" != "xno"; then
 145       CPPFLAGS="$CPPFLAGS $RPI_CFLAGS"
 146       libs_pre_rpi="$LIBS"
 147       LIBS="$LIBS $RPI_LIBS -lvcos -lvchiq_arm"
 148
 149       check_rpi_cec_service="yes"
 150
 151       ## check for headers we need
 152       AC_CHECK_HEADER(interface/vmcs_host/vc_cec.h,,check_rpi_cec_service="no")
 153       AC_CHECK_HEADER(interface/vmcs_host/vc_cecservice.h,,check_rpi_cec_service="no")
 154       AC_CHECK_HEADER(interface/vchiq_arm/vchiq_if.h,,check_rpi_cec_service="no")
 155       AC_CHECK_HEADER(bcm_host.h,,check_rpi_cec_service="no")
 156
 157       ## check if the headers contain support for libCEC.
 158       ## VC_CECSERVICE_VER needs to be defined
 159       AC_MSG_CHECKING([interface/vmcs_host/vc_cec.h compatibility])
 160
 161       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <interface/vmcs_host/vc_cecservice.h>
 162 #include <interface/vchiq_arm/vchiq_if.h>
 163 #if !defined(VC_CECSERVICE_VER)
 164 #error RPi headers does not contain libCEC support
 165 #endif]], [[]])],[AC_MSG_RESULT([yes])],[check_rpi_cec_service="no"; AC_MSG_RESULT([no])])
 166
 167       ## check if the methods we're using can be found in libbcm_host.so, so we don't use an incompatible version
 168       AC_CHECK_LIB(bcm_host,vchi_initialise,,check_rpi_cec_service="no")
 169       libs_tmp="$LIBS"
 170       AC_CHECK_LIB(bcm_host,vc_vchi_cec_init,,check_rpi_cec_service="no")
 171       AC_CHECK_LIB(bcm_host,vc_cec_get_logical_address,,check_rpi_cec_service="no")
 172       AC_CHECK_LIB(bcm_host,vc_cec_get_physical_address,,check_rpi_cec_service="no")
 173       AC_CHECK_LIB(bcm_host,vc_cec_param2message,,check_rpi_cec_service="no")
 174       AC_CHECK_LIB(bcm_host,vc_cec_poll_address,,check_rpi_cec_service="no")
 175       AC_CHECK_LIB(bcm_host,vc_cec_register_callback,,check_rpi_cec_service="no")
 176       AC_CHECK_LIB(bcm_host,vc_cec_release_logical_address,,check_rpi_cec_service="no")
 177       AC_CHECK_LIB(bcm_host,vc_cec_set_passive,,check_rpi_cec_service="no")
 178       AC_CHECK_LIB(bcm_host,vcos_init,,check_rpi_cec_service="no")
 179       AC_CHECK_LIB(bcm_host,vchiq_initialise,,check_rpi_cec_service="no")
 180       AC_CHECK_LIB(bcm_host,vchi_initialise,,check_rpi_cec_service="no")
 181       AC_CHECK_LIB(bcm_host,vchi_create_connection,,check_rpi_cec_service="no")
 182       AC_CHECK_LIB(bcm_host,bcm_host_init,,check_rpi_cec_service="no")
 183       LIBS="$libs_tmp"
 184
 185       if test "x$check_rpi_cec_service" != "xyes" && test "x$use_rpi" = "xyes"; then
 186         AC_MSG_ERROR($msg_rpi_api_missing)
 187       elif test "x$check_rpi_cec_service" != "xyes"; then
 188         use_rpi="no"
 189         LIBS="$libs_pre_rpi"
 190       fi
 191     fi
 192     ;;
 193   *-apple-darwin*)
 194     AC_CHECK_HEADER(mach/mach_time.h,,AC_MSG_ERROR($msg_required_header_missing))
 195     AC_CHECK_HEADER(CoreVideo/CVHostTime.h,,AC_MSG_ERROR($msg_required_header_missing))
 196     ;;
 197 esac
 198
 199 ## define the build info
 200 LIB_INFO="host: ${host}, features:"
 201
 202 features="Configured features:\n  Pulse-Eight CEC Adapter :\t\tyes"
 203 LIB_INFO="$LIB_INFO 'P8 USB'"
 204 AC_DEFINE([HAVE_P8_USB],[1],[Define to 1 to include support for the Pulse-Eight USB-CEC Adapter])
 205 AM_CONDITIONAL(USE_P8_USB, true)
 206
 207 ## mark adapter detection as available if the required deps were found
 208 if test "x$use_adapter_detection" = "xyes"; then
 209   ## mark udev as available if it was found
 210   if test "x$use_udev" = "xyes"; then
 211     INCLUDES="$INCLUDES $UDEV_CFLAGS"
 212     LIBS="$LIBS $UDEV_LIBS"
 213     AC_DEFINE([HAVE_LIBUDEV],[1],[Define to 1 if libudev is installed])
 214     REQUIRES="$REQUIRES udev"
 215   fi
 216
 217   AC_DEFINE([HAVE_P8_USB_DETECT],[1],[Define to 1 to include autodetection support for the Pulse-Eight USB-CEC Adapter])
 218   AM_CONDITIONAL(USE_P8_USB_DETECT, true)
 219
 220   features="$features\n  Pulse-Eight CEC Adapter detection :\tyes"
 221   LIB_INFO="$LIB_INFO 'P8 USB detect'"
 222 else
 223   AM_CONDITIONAL(USE_P8_USB_DETECT, false)
 224   features="$features\n  Pulse-Eight CEC Adapter detection :\tno"
 225 fi
 226
 227 ## mark RPi support as available if the required headers and libs were found
 228 if test "x$use_rpi" != "xno"; then
 229   AC_DEFINE([HAVE_RPI_API],[1],[Define to 1 to include RPi support])
 230   AM_CONDITIONAL(USE_RPI_API, true)
 231   features="$features\n  Raspberry Pi support :\t\tyes"
 232   LIB_INFO="$LIB_INFO 'RPi'"
 233 else
 234   AM_CONDITIONAL(USE_RPI_API, false)
 235   features="$features\n  Raspberry Pi support :\t\tno"
 236 fi
 237
 238 ## check if our build system is complete
 239 AC_CHECK_HEADER(algorithm,,AC_MSG_ERROR($msg_required_header_missing))
 240 AC_CHECK_HEADER(ctype.h,,AC_MSG_ERROR($msg_required_header_missing))
 241 AC_CHECK_HEADER(dlfcn.h,,AC_MSG_ERROR($msg_required_header_missing))
 242 AC_CHECK_HEADER(errno.h,,AC_MSG_ERROR($msg_required_header_missing))
 243 AC_CHECK_HEADER(fcntl.h,,AC_MSG_ERROR($msg_required_header_missing))
 244 AC_CHECK_HEADER(functional,,AC_MSG_ERROR($msg_required_header_missing))
 245 AC_CHECK_HEADER(locale,,AC_DEFINE([SS_NO_LOCALE],[1],[Define to 1 to exclude locale support]))
 246 AC_CHECK_HEADER(map,,AC_MSG_ERROR($msg_required_header_missing))
 247 AC_CHECK_HEADER(netdb.h,,AC_MSG_ERROR($msg_required_header_missing))
 248 AC_CHECK_HEADER(poll.h,,AC_MSG_ERROR($msg_required_header_missing))
 249 AC_CHECK_HEADER(pthread.h,,AC_MSG_ERROR($msg_required_header_missing))
 250 AC_CHECK_HEADER(queue,,AC_MSG_ERROR($msg_required_header_missing))
 251 AC_CHECK_HEADER(semaphore.h,,AC_MSG_ERROR($msg_required_header_missing))
 252 AC_CHECK_HEADER(set,,AC_MSG_ERROR($msg_required_header_missing))
 253 AC_CHECK_HEADER(stdarg.h,,AC_MSG_ERROR($msg_required_header_missing))
 254 AC_CHECK_HEADER(stdint.h,,AC_MSG_ERROR($msg_required_header_missing))
 255 AC_CHECK_HEADER(stdio.h,,AC_MSG_ERROR($msg_required_header_missing))
 256 AC_CHECK_HEADER(stdlib.h,,AC_MSG_ERROR($msg_required_header_missing))
 257 AC_CHECK_HEADER(string,,AC_MSG_ERROR($msg_required_header_missing))
 258 AC_CHECK_HEADER(string.h,,AC_MSG_ERROR($msg_required_header_missing))
 259 AC_CHECK_HEADER(termios.h,,AC_MSG_ERROR($msg_required_header_missing))
 260 AC_CHECK_HEADER(unistd.h,,AC_MSG_ERROR($msg_required_header_missing))
 261 AC_CHECK_HEADER(vector,,AC_MSG_ERROR($msg_required_header_missing))
 262 AC_CHECK_HEADER(wchar.h,,AC_MSG_ERROR($msg_required_header_missing))
 263 AC_CHECK_HEADER(wctype.h,,AC_MSG_ERROR($msg_required_header_missing))
 264 AC_CHECK_HEADER(arpa/inet.h,,AC_MSG_ERROR($msg_required_header_missing))
 265 AC_CHECK_HEADER(netinet/in.h,,AC_MSG_ERROR($msg_required_header_missing))
 266 AC_CHECK_HEADER(netinet/tcp.h,,AC_MSG_ERROR($msg_required_header_missing))
 267 AC_CHECK_HEADER(sys/socket.h,,AC_MSG_ERROR($msg_required_header_missing))
 268 AC_CHECK_HEADER(sys/time.h,,AC_MSG_ERROR($msg_required_header_missing))
 269 AC_CHECK_HEADER(sys/types.h,,AC_MSG_ERROR($msg_required_header_missing))
 270 AC_CHECK_FUNCS([close fcntl select write read shutdown send recv memset sprintf getaddrinfo getsockopt setsockopt connect poll sched_yield open strerror tcsetattr tcgetattr cfsetispeed cfsetospeed bind freeaddrinfo listen accept socket])
 271
 272 ## add the build date to LIB_INFO
 273 AC_CHECK_PROG(HAVE_GIT, git, yes)
 274 if test "x$HAVE_GIT" = "xyes"; then
 275   revision=$(git --no-pager log --abbrev=7 -n 1 --pretty=format:"%h" HEAD)
 276 fi
 277 if test "x$revision" != "x"; then
 278   LIB_INFO="$LIB_INFO, git revision: ${revision}"
 279 fi
 280
 281 AC_CHECK_PROG(HAVE_DATE, date, yes)
 282 if test "x$HAVE_DATE" = "xyes"; then
 283   LIB_INFO="$LIB_INFO, compiled on: `date -u`"
 284 else
 285   LIB_INFO="$LIB_INFO, compiled on: (unknown date)"
 286 fi
 287
 288 ## add the name of the user who built libCEC to LIB_INFO
 289 AC_CHECK_PROG(HAVE_WHOAMI, whoami, yes)
 290 if test "x$HAVE_WHOAMI" = "xyes" ; then
 291   LIB_INFO="$LIB_INFO by `whoami`"
 292 else
 293   LIB_INFO="$LIB_INFO by (unknown user)"
 294 fi
 295
 296 ## add the hostname of the build host of libCEC to LIB_INFO
 297 AC_CHECK_PROG(HAVE_HOSTNAME, hostname, yes)
 298 if test "x$HAVE_HOSTNAME" = "xyes"; then
 299   LIB_INFO="$LIB_INFO@`hostname -f`"
 300 fi
 301
 302 ## add the system info of the build host of libCEC to LIB_INFO
 303 AC_CHECK_PROG(HAVE_UNAME, uname, yes)
 304 if test "x$HAVE_UNAME" = "xyes"; then
 305   LIB_INFO="$LIB_INFO on `uname -s` `uname -r` (`uname -m`)"
 306 fi
 307
 308 ## redefine the LIBS, so cec-client and cec-config aren't linked against things they don't need
 309 LIBS_LIBCEC="$LIBS"
 310 LIBS="$libs_client"
 311
 312 CXXFLAGS="$CXXFLAGS -fPIC -Wall -Wextra -Wno-missing-field-initializers"
 313
 314 if test "x$use_debug" = "xyes"; then
 315   CXXFLAGS="$CXXFLAGS -g"
 316 fi
 317
 318 if test "x$optimisation" = "xyes"; then
 319   CXXFLAGS="$CXXFLAGS -O2"
 320 fi
 321
 322 AC_DEFINE_UNQUOTED(LIB_INFO,"$LIB_INFO", "information about how libCEC was compiled")
 323
 324 AC_SUBST([REQUIRES])
 325 AC_SUBST([LIBS])
 326 AC_SUBST([LIBS_LIBCEC])
 327 AC_SUBST([LIB_INFO])
 328 AC_SUBST([USE_P8_USB])
 329 AC_SUBST([USE_P8_USB_DETECT])
 330 AC_SUBST([USE_RPI_API])
 331 AC_CONFIG_FILES([src/lib/libcec.pc])
 332 AC_OUTPUT([Makefile src/lib/Makefile src/testclient/Makefile src/cec-config/Makefile])
 333
 334 cat <<EOB
 335
 336 ##############################################################################
 337
 338 libCEC version $VERSION configured
 339
 340 Compilation flags:
 341   CXXFLAGS :       $CXXFLAGS
 342   libCEC LDFLAGS : $LIBS_LIBCEC
 343   client LDFLAGS : $LIBS
 344
 345 EOB
 346
 347 echo -e "$features"
 348
 349 cat <<EOB
 350
 351 You can now build libCEC by running:
 352   make
 353
 354 ##############################################################################
 355
 356 EOB