configure.ac

   1 dnl Process this file with autogen.sh to produce a working configure
   2 dnl script.
   3
   4 AC_INIT
   5 AC_CONFIG_SRCDIR([src/Aircraft/aircraft.cxx])
   6
   7 dnl Require at least automake 2.52
   8 AC_PREREQ(2.52)
   9
  10 dnl Initialize the automake stuff
  11 dnl set the $host variable based on local machine/os
  12 AC_CANONICAL_TARGET
  13 AM_INIT_AUTOMAKE(FlightGear, 2.0.0)
  14
  15 dnl Checks for programs.
  16 AC_PROG_MAKE_SET
  17 AC_PROG_CC
  18 AC_PROG_CPP
  19 AC_PROG_CXX
  20 AC_PROG_CXXCPP
  21 AC_PROG_RANLIB
  22 AC_PROG_INSTALL
  23 AC_PROG_LN_S
  24 AX_BOOST_BASE([1.37.0])
  25
  26 if test "x$BOOST_CPPFLAGS" != "x-I/usr/include" ; then
  27    CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
  28 fi
  29
  30 # specify the simgear location
  31 AC_ARG_WITH(simgear, [  --with-simgear=PREFIX   Specify the prefix path to SimGear])
  32
  33 if test "x$with_simgear" != "x" ; then
  34     echo "SimGear prefix path is $with_simgear"
  35     EXTRA_DIRS="${EXTRA_DIRS} $with_simgear"
  36     CXXFLAGS="$CXXFLAGS -I$with_simgear"
  37 fi
  38
  39 # specify the plib location
  40 AC_ARG_WITH(plib, [  --with-plib=PREFIX      Specify the prefix path to plib])
  41
  42 if test "x$with_plib" != "x" ; then
  43     echo "plib prefix is $with_plib"
  44     EXTRA_DIRS="${EXTRA_DIRS} $with_plib"
  45 fi
  46
  47 # specify the osg location
  48 AC_ARG_WITH(osg, [  --with-osg=PREFIX       Specify the prefix path to osg])
  49
  50 if test "x$with_osg" != "x" ; then
  51     echo "osg prefix is $with_osg"
  52     EXTRA_DIRS="${EXTRA_DIRS} $with_osg"
  53 fi
  54
  55 # specify framework related locations for Mac OS X
  56 case "${host}" in
  57 *-apple-darwin*)
  58
  59     dnl Thank you Christian Bauer from SheepSaver
  60     dnl Modified by Tatsuhiro Nishioka for accepting a given framework path
  61     dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES, $3=FRAMEWORK_PATH) ; $3 is optional
  62     AC_DEFUN([AC_CHECK_FRAMEWORK], [
  63     AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
  64     AC_CACHE_CHECK([whether compiler supports framework $1],
  65         ac_Framework, [
  66         saved_LIBS="$LIBS"
  67         FRAMEWORKS="$FRAMEWORKS -framework $1"
  68         if test "$3" = ""; then
  69             FRAMEWORKS="$FRAMEWORKS $ADD2LD"
  70         elif test "`echo $FRAMEWORKS | grep -- -F$3`" = ""; then
  71             FRAMEWORKS="$FRAMEWORKS -F$3"
  72             CXXFLAGS="$CXXFLAGS -F$3"
  73             CCFLAGS="$CCFLAGS -F$3"
  74             dnl This is needed for AC_TRY_LINK when a framework path is specified
  75             export DYLD_FRAMEWORK_PATH="${DYLD_FRAMEWORK_PATH}:$3"
  76         fi
  77         AC_TRY_LINK(
  78         [$2], [],
  79         [AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
  80         )
  81     ])
  82     AS_IF([test AS_VAR_GET(ac_Framework) = yes],
  83         [AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
  84     )
  85     AS_VAR_POPDEF([ac_Framework])dnl
  86     ])
  87
  88     # Mac OS X specific configure options
  89     AC_ARG_WITH(cocoa_framework, [  --with-cocoa-framework       Use the Cocoa rather than Carbon]])
  90     if test "x$with_cocoa_framework" != "x" ; then
  91         macAPI=Cocoa
  92         AC_MSG_NOTICE([Using Cocoa framework])
  93     else
  94         macAPI=Carbon
  95         AC_MSG_NOTICE([Using Carbon framework])
  96     fi
  97
  98     AC_ARG_WITH(osg_framework, [  --with-osg-framework=PREFIX       Specify the prefix path to osg frameworks [default=standard framework paths]])
  99     if test "x$with_osg_framework" != "x" ; then
 100         echo "osg prefix is $with_osg_framework"
 101         export DYLD_FRAMEWORK_PATH="$DYLD_FRAMEWORK_PATH:$with_osg_framework"
 102     fi
 103
 104     AC_ARG_WITH(plib_framework, [  --with-plib-framework=PREFIX       Specify the prefix path to PLIB framework [default=standard framework paths]])
 105     if test "x$with_plib_framework" != "x" ; then
 106         echo "plib prefix is $with_plib_framework"
 107         export DYLD_FRAMEWORK_PATH="$DYLD_FRAMEWORK_PATH:$with_plib_framework"
 108     fi
 109
 110     AC_ARG_WITH(openal_framework, [ --with-openal-framework=PREFIX    Speicfy the prefix path to OpenAL.framework ])
 111     if test "x$with_openal_framework" != "x"; then
 112         echo "OpenAL framework prefix is $with_openal_framework"
 113     fi
 114
 115     ;;
 116 esac
 117
 118 dnl Determine an extra directories to add to include/lib search paths
 119 case "${host}" in
 120 *-apple-darwin* | *-*-mingw32*)
 121     echo no EXTRA_DIRS for $host
 122     ;;
 123
 124 *-*-cygwin*)
 125     if test -d /usr/local ; then
 126         EXTRA_DIRS="${EXTRA_DIRS} /usr/local"
 127     fi
 128     ;;
 129
 130 *)
 131     if test -d /usr/X11R6 ; then
 132         EXTRA_DIR1="/usr/X11R6"
 133     fi
 134     if test -d /opt/X11R6 ; then
 135         EXTRA_DIR2="/opt/X11R6"
 136     fi
 137     EXTRA_DIRS="${EXTRA_DIRS} $EXTRA_DIR1 $EXTRA_DIR2 /usr/local"
 138     ;;
 139
 140 esac
 141 wi_EXTRA_DIRS(no, ${EXTRA_DIRS})
 142
 143
 144 case "${host}" in
 145 *-*-irix*)
 146     if test "$CXX" = "CC"; then
 147         AR="CC -ar"
 148         ARFLAGS="-o"
 149         CXXFLAGS="$CXXFLAGS -c99 -I$with_simgear/include/simgear/compatibility"
 150         CFLAGS="$CFLAGS -c99"
 151     else
 152         AR="ar"
 153         ARFLAGS="cru"
 154     fi
 155     ;;
 156 *)
 157     AR="ar"
 158     ARFLAGS="cru"
 159     ;;
 160 esac
 161 AC_SUBST(AR)
 162 AC_SUBST(ARFLAGS)
 163
 164 dnl set logging; default value of with_logging=yes
 165 AC_ARG_WITH(logging, [  --with-logging          Include logging output (default)])
 166 if test "x$with_logging" = "xno" ; then
 167     AC_DEFINE([FG_NDEBUG], 1, [Define for no logging output])
 168 fi
 169
 170 AC_ARG_ENABLE(sp_fdms, [  --enable-sp-fdms               Include special purpose Flight Models], [enable_sp_fdms="$enableval"] )
 171 if test "x$enable_sp_fdms" != "xno"; then
 172     AC_DEFINE([ENABLE_SP_FDM], 1, [Define to include special purpose FDMs])
 173 else
 174     AC_DEFINE([ENABLE_SP_FDM], 0, [Define to include special purpose FDMs])
 175 fi
 176 AM_CONDITIONAL(ENABLE_SP_FDM, test "x$enable_sp_fdms" != "xno")
 177
 178
 179 dnl EXPERIMENTAL generic event driven input device
 180 # defaults to no
 181 AC_ARG_WITH(eventinput, [  --with-eventinput       Include event driven input (EXPERIMENTAL) [default=no]], [], [with_eventinput=no])
 182 if test "x$with_eventinput" = "xyes"; then
 183     AC_DEFINE([WITH_EVENTINPUT], 1, [Define to enable generic event driven input device])
 184     case "${host}" in
 185     dnl OS specific sources for event driven input
 186     dnl Linux and Mac OS X are supported at this moment
 187     *-apple-darwin*)
 188         eventinput_EXTRA_OBJS="FGMacOSXEventInput.o"
 189         eventinput_INCUDES=""
 190         eventinput_LIBS=""
 191         ;;
 192     *linux*)
 193         dnl
 194         dnl FIXME: include paths for dbus are hard-coded at this moment.
 195         dnl FIXME: these must be found in configure
 196         dnl
 197         eventinput_EXTRA_OBJS="FGLinuxEventInput.o"
 198         eventinput_INCLUDES="-I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include -I/usr/lib/dbus-1.0/include"
 199         eventinput_LIBS="-ldbus-1 -lhal"
 200         ;;
 201     *)
 202         echo "Event driven input is not supported on ${host}."
 203         ;;
 204     esac
 205     AC_SUBST(eventinput_EXTRA_OBJS)
 206     AC_SUBST(eventinput_INCLUDES)
 207     AC_SUBST(eventinput_LIBS)
 208 fi
 209 AM_CONDITIONAL(WITH_EVENTINPUT, test "x$with_eventinput" = "xyes")
 210
 211 dnl Thread related checks
 212 # defaults to yes
 213 AC_ARG_WITH(threads, [  --with-threads          Include tile loading threads [default=yes]], [], [with_threads=yes])
 214 if test "x$with_threads" = "xyes"; then
 215     AC_DEFINE([ENABLE_THREADS], 1, [Define to enable threaded tile paging])
 216     CXXFLAGS="$CXXFLAGS -D_REENTRANT"
 217     CFLAGS="$CFLAGS -D_REENTRANT"
 218 fi
 219 AC_CHECK_HEADER(pthread.h)
 220
 221 dnl Used by JSBSim to conditionally compile in fgfs interface code
 222 AC_DEFINE([FGFS], 1, [Define so that JSBSim compiles in 'library' mode])
 223
 224 # Check for MS Windows environment
 225 AC_CHECK_HEADER(windows.h)
 226
 227 dnl Using AM_CONDITIONAL is a step out of the protected little
 228 dnl automake fold so it is potentially dangerous.  But, we are
 229 dnl beginning to run into cases where the standard checks are not
 230 dnl enough.  AM_CONDITIONALS are then referenced to conditionally
 231 dnl build a Makefile.in from a Makefile.am which lets us define custom
 232 dnl includes, compile alternative source files, etc.
 233
 234 dnl Check for external variables daylight and timezone.
 235 AC_EXT_DAYLIGHT
 236 if test "$have_daylight" = yes; then
 237     AC_DEFINE([HAVE_DAYLIGHT], 1, [Define if system has daylight variable])
 238 fi
 239
 240 AC_EXT_TIMEZONE
 241 if test "$have_timezone" = yes; then
 242     AC_DEFINE([HAVE_TIMEZONE], 1, [Define if system has timezone variable])
 243 fi
 244
 245
 246 dnl add joystick support libraries
 247 dnl search for FreeBSD library
 248 AC_SEARCH_LIBS(hid_init, usbhid)
 249 joystick_LIBS="$LIBS"
 250 LIBS=""
 251
 252
 253 dnl ENABLE_AUDIO_SUPPORT could be depricated at any time in favor of
 254 dnl just assuming we have audio support on all platform.  We can
 255 dnl depend on plib to hide the details.
 256 AC_DEFINE([ENABLE_AUDIO_SUPPORT], 1, [Define for audio support])
 257
 258 dnl X11 might be installed on Mac OS X or cygwin/mingwin, we don't want
 259 dnl to use it if it is.
 260 case "${host}" in
 261 *-apple-darwin* | *-*-cygwin* | *-*-mingw32*)
 262     echo no fancy X11 check
 263     ;;
 264
 265 *)
 266     AC_PATH_XTRA
 267     ;;
 268
 269 esac
 270
 271 dnl Checks for libraries.
 272
 273 dnl Thread related checks
 274 AC_SEARCH_LIBS(pthread_create, [pthread c_r])
 275 if test "x$ac_cv_header_pthread_h" = "xyes"; then
 276   if test "x$ac_cv_search_pthread_exit" = "x-lc_r"; then
 277     CXXFLAGS="-pthread $CXXFLAGS"
 278     CFLAGS="-pthread $CFLAGS"
 279     LIBS="-lsgthreads $LIBS"
 280   fi
 281 fi
 282
 283 thread_LIBS="$LIBS"
 284 LIBS=""
 285
 286 dnl search for network related libraries
 287 AC_SEARCH_LIBS(inet_addr, xnet)
 288 AC_SEARCH_LIBS(socket, socket)
 289 AC_SEARCH_LIBS(main, nsl)
 290
 291 network_LIBS="$LIBS"
 292 LIBS=""
 293
 294 dnl check for some default libraries
 295 AC_SEARCH_LIBS(sqrt, [am ffm fm fastm m])
 296 AC_SEARCH_LIBS(ceil, m)
 297 AC_SEARCH_LIBS(dlclose, dl)
 298 AC_SEARCH_LIBS(clock_gettime, rt)
 299
 300 base_LIBS="$LIBS"
 301
 302 dnl Check for SDL or glut if enabled.
 303 AC_ARG_ENABLE(osgviewer, [  --enable-osgviewer                  Configure to use osgViewer(default)], [enable_osgviewer="$enableval"])
 304 AC_ARG_ENABLE(sdl,  [  --enable-sdl                   Configure to use SDL], [enable_sdl="$enableval"])
 305 AC_ARG_ENABLE(glut, [  --enable-glut                  Configure to use GLUT], [enable_glut="$enableval"])
 306 AM_CONDITIONAL(USE_SDL, test "x$enable_sdl" = "xyes")
 307 AM_CONDITIONAL(USE_GLUT, test "x$enable_glut" = "xyes")
 308 if test "x$enable_sdl" != "xyes" -a "x$enable_glut" != "xyes" -a "x$enable_osgviewer" != "xno"; then
 309    enable_osgviewer="yes"
 310 fi
 311 if test \( "x$enable_osgviewer" = "xyes" \
 312    -a \( "x$enable_sdl" = "xyes" -o "x$enable_glut" = "xyes" \) \) \
 313    -o \( "x$enable_sdl" = "xyes" -a "x$enable_glut" = "xyes" \); then
 314    echo " Only one of --enable-osgviewer, --enable-sdl, or --enable -glut may"
 315    echo " be supplied."
 316    exit
 317 fi
 318 AC_DEFINE([PU_USE_NONE], 1, [Define to use application's pu callbacks])
 319
 320 AC_ARG_ENABLE(osgdebug, [  --enable-osgdebug              Use OSG debug libraries], [enable_osgdebug="$enableval"])
 321
 322 dnl check for OpenGL related libraries
 323 case "${host}" in
 324 *-*-cygwin* | *-*-mingw32*)
 325     dnl CygWin under Windoze.
 326
 327     echo Win32 specific hacks...
 328     AC_DEFINE([WIN32], 1, [Define for Win32 platforms])
 329     AC_DEFINE([NOMINMAX], 1, [Define for Win32 platforms])
 330
 331     if test "x$enable_sdl" = "xyes"; then
 332         AC_SEARCH_LIBS(SDL_Init, SDL)
 333     else
 334         LIBS="$LIBS -lglut32"
 335     fi
 336
 337     LIBS="$LIBS -lglu32 -lopengl32 -luser32 -lgdi32"
 338     joystick_LIBS="$joystick_LIBS -lwinmm"
 339
 340     dnl add -lwsock32 for mingwin
 341     case "${host}" in
 342     *-*-mingw32*)
 343         echo "********** BUILDING FOR MINGW32 *************"
 344         network_LIBS="$network_LIBS -lws2_32"
 345         ;;
 346     esac
 347
 348     echo "Will link apps with $LIBS"
 349     ;;
 350
 351
 352 *-apple-darwin*)
 353     dnl Mac OS X
 354
 355     LIBS="$LIBS -framework GLUT -framework OpenGL -framework AGL -framework $macAPI -lobjc"
 356     joystick_LIBS="$joystick_LIBS -framework IOKit -framework CoreFoundation"
 357     ;;
 358
 359 *)
 360     dnl X-Windows based machines
 361
 362     dnl Skip X11 library tests if requested.
 363     if test "x$no_x" != "xyes"; then
 364         AC_SEARCH_LIBS(XCreateWindow, X11)
 365         AC_SEARCH_LIBS(XShmCreateImage, Xext)
 366         AC_SEARCH_LIBS(XGetExtensionVersion, Xi)
 367         AC_SEARCH_LIBS(IceOpenConnection, ICE)
 368         AC_SEARCH_LIBS(SmcOpenConnection, SM)
 369         AC_SEARCH_LIBS(XtMalloc, Xt)
 370         AC_SEARCH_LIBS(XmuLookupStandardColormap, Xmu)
 371     fi
 372
 373     AC_SEARCH_LIBS(glNewList, [ GL GLcore MesaGL ])
 374     if test "x$ac_cv_search_glNewList" = "x-lGLcore"; then
 375         dnl if GLcore found, then also check for GL
 376         AC_SEARCH_LIBS(glXCreateContext, GL)
 377     fi
 378
 379     dnl if using mesa, check for xmesa.h
 380     if test "x$ac_cv_search_glNewList" = "x-lMesaGL"; then
 381         AC_CHECK_HEADER(GL/fxmesa.h)
 382         if test "x$ac_cv_header_GL_fxmesa_h" = "xyes"; then
 383             AC_DEFINE([XMESA], 1, [Define for fxmesa])
 384             AC_DEFINE([FX], 1, [Define for fxmesa])
 385         fi
 386     fi
 387
 388     AC_SEARCH_LIBS(gluLookAt, [ GLU MesaGLU ])
 389     AC_SEARCH_LIBS(glutGetModifiers, [ glut freeglut ])
 390     if test "x$enable_sdl" = "xyes"; then
 391         AC_SEARCH_LIBS(SDL_Init, SDL)
 392     fi
 393     ;;
 394
 395 esac
 396
 397 opengl_LIBS="$LIBS"
 398 LIBS="$base_LIBS $joystick_LIBS"
 399
 400 dnl check for OpenAL libraries
 401 OPENAL_OK="no"
 402 ALUT_OK="no"
 403 case "${host}" in
 404 *-*-cygwin* | *-*-mingw32*)
 405     dnl CygWin under Windoze.
 406     INCLUDES="$INCLUDES -I/usr/local/include/"
 407     LIBS="$LIBS -L/usr/local/lib"
 408     AC_SEARCH_LIBS(alGenBuffers, [ openal32 openal 'openal -ldsound -lwinmm' ] )
 409     AC_SEARCH_LIBS(alutInit, [ openal32 ALut alut ] )
 410     LIBS="$LIBS -lwinmm -ldsound -ldxguid -lole32"
 411     openal_LIBS="$LIBS"
 412     OPENAL_OK="$ac_cv_search_alGenBuffers"
 413     ALUT_OK="$ac_cv_search_alutInit"
 414     ;;
 415
 416 *-apple-darwin*)
 417     dnl Mac OS X
 418
 419     # Mac OS X has OpenAL.framework with ALUT by default
 420     # so we can use it without checking it.
 421     # Note: SimGear needs to check the existance of alut.h since it includes the header.
 422     LIBS="$LIBS -framework IOKit -framework OpenAL"
 423     openal_LIBS="$LIBS"
 424     OPENAL_OK="yes"
 425     ALUT_OK="yes"
 426
 427     dnl Check for OpenAL.framework when --with-openal-framework is specified
 428     if test "x$with_openal_framework" != "x"; then
 429       AC_CHECK_FRAMEWORK(OpenAL, [#include <OpenAL/alut.h>], $with_openal_framework)
 430     fi
 431
 432     ;;
 433
 434 *)
 435     dnl default unix style machines
 436
 437     save_LIBS=$LIBS
 438     LIBS="$LIBS $thread_LIBS"
 439     AC_SEARCH_LIBS(alGenBuffers, openal)
 440     AC_SEARCH_LIBS(alutInit, [ alut openal ] )
 441     OPENAL_OK="$ac_cv_search_alGenBuffers"
 442     ALUT_OK="$ac_cv_search_alutInit"
 443     openal_LIBS="$LIBS"
 444     LIBS=$save_LIBS
 445     ;;
 446
 447 esac
 448
 449 if test "$OPENAL_OK" == "no"; then
 450     echo
 451     echo "You *must* have the openal library installed on your system to build"
 452     echo "SimGear!"
 453     echo
 454     echo "Please see README.OpenAL for more details."
 455     echo
 456     echo "configure aborted."
 457     exit
 458 fi
 459
 460 if test "$ALUT_OK" == "no"; then
 461     echo
 462     echo "You *must* have the alut library installed on your system to build"
 463     echo "SimGear!"
 464     echo
 465     echo "Please see README.OpenAL for more details."
 466     echo
 467     echo "configure aborted."
 468     exit
 469 fi
 470
 471
 472 LIBS="$base_LIBS"
 473
 474 AC_SUBST(base_LIBS)
 475 AC_SUBST(openal_LIBS)
 476 AC_SUBST(opengl_LIBS)
 477 AC_SUBST(thread_LIBS)
 478 AC_SUBST(network_LIBS)
 479 AC_SUBST(joystick_LIBS)
 480
 481 # The following are C++ items that need to be tested for with the c++
 482 # compiler
 483
 484 AC_LANG_PUSH(C++)
 485
 486 dnl Check for the presence of SimGear
 487 if test "x$with_simgear" != "x"; then
 488 AC_CHECK_HEADER($with_simgear/include/simgear/version.h, [ac_cv_header_simgear_version_h=yes], [ac_cv_header_simgear_version_h=no])
 489 else
 490 AC_CHECK_HEADER(simgear/version.h)
 491 fi
 492 if test "x$ac_cv_header_simgear_version_h" != "xyes"; then
 493     echo
 494     echo "You *must* have the SimGear support library installed on your system"
 495     echo "to build the FGFS simulator!"
 496     echo
 497     echo "Please see README.SimGear for more details."
 498     echo
 499     echo "configure aborted."
 500     exit
 501 fi
 502
 503 AC_MSG_CHECKING([for SimGear 1.9.0 or newer])
 504 AC_TRY_RUN([
 505 #include <stdio.h>
 506
 507 #include <simgear/version.h>
 508
 509 #define STRINGIFY(X) XSTRINGIFY(X)
 510 #define XSTRINGIFY(X) #X
 511
 512 #define MIN_MAJOR 1
 513 #define MIN_MINOR 9
 514 #define MIN_MICRO 0
 515
 516 int main() {
 517     int major, minor, micro;
 518
 519     /* printf("%d.%d.%d or greater, ", MIN_MAJOR, MIN_MINOR, MIN_MICRO); */
 520     printf("[found %s] ... ", STRINGIFY(SIMGEAR_VERSION));
 521
 522     sscanf( STRINGIFY(SIMGEAR_VERSION), "%d.%d.%d", &major, &minor, &micro );
 523
 524     if ( (major < MIN_MAJOR) ||
 525          (major == MIN_MAJOR && minor < MIN_MINOR) ||
 526          (major == MIN_MAJOR && minor == MIN_MINOR && micro < MIN_MICRO) ) {
 527          return -1;
 528     }
 529
 530     return 0;
 531 }
 532
 533 ],
 534   AC_MSG_RESULT(yes),
 535   [AC_MSG_RESULT(wrong version);
 536    AC_MSG_ERROR([Install latest SimGear first...])],
 537   AC_MSG_RESULT(yes)
 538 )
 539
 540 LIBS="$saved_LIBS"
 541
 542 dnl Check if SimGear was built with Norman's JPEG factory support
 543 if test "x$with_simgear" != "x"; then
 544 AC_CHECK_HEADER($with_simgear/include/simgear/screen/jpgfactory.hxx,[ac_cv_header_simgear_screen_jpgfactory_hxx=yes],[ac_cv_header_simgear_screen_jpgfactory_hxx=no])
 545 else
 546 AC_CHECK_HEADER(simgear/screen/jpgfactory.hxx)
 547 fi
 548 if test "x$ac_cv_header_simgear_screen_jpgfactory_hxx" = "xyes"; then
 549     AC_CHECK_LIB(jpeg, jpeg_start_compress)
 550     if test "x$ac_cv_lib_jpeg_jpeg_start_compress" != "xyes" ; then
 551         echo
 552         echo "The JPEG factory code was built and installed with SimGear."
 553         echo "However it appears the libjpeg is no longer installed."
 554         echo "You need to install libjpeg or remove jpgfactory support from"
 555         echo "SimGear"
 556         echo
 557         echo "libjpeg is available at :"
 558         echo "  ftp://ftp.uu.net in the directory graphics/jpeg"
 559         exit 1
 560     fi
 561     AC_DEFINE([FG_JPEG_SERVER], 1,
 562               [Define to build with jpeg screen shot server])
 563 fi
 564 AM_CONDITIONAL(ENABLE_JPEG_SERVER, test "x$ac_cv_header_simgear_screen_jpgfactory_hxx" = "xyes")
 565
 566 # Check for "plib" without which we cannot go on
 567 case "${host}" in
 568 *-apple-darwin*)
 569     if test "x$with_plib_framework" != "x"; then
 570         AC_CHECK_FRAMEWORK(PLIB, [#include <plib/ul.h>], $with_plib_framework, no)
 571         plib_FRAMEWORK="$FRAMEWORKS"
 572         AC_SUBST(plib_FRAMEWORK)
 573         FRAMEWORKS=""
 574     fi
 575     ;;
 576 esac
 577 AM_CONDITIONAL(HAVE_FRAMEWORK_PLIB, test "x$ac_cv_framework_PLIB" != "x")
 578
 579 AC_CHECK_HEADER(plib/ul.h)
 580 if test "x$ac_cv_header_plib_ul_h" != "xyes"; then
 581     echo
 582     echo "You *must* have the plib library installed on your system to build"
 583     echo "the FGFS simulator!"
 584     echo
 585     echo "Please see README.plib for more details."
 586     echo
 587     echo "configure aborted."
 588     exit
 589 fi
 590
 591 echo "$DYLD_FRAMEWORK_PATH"
 592 AC_MSG_CHECKING([for plib 1.8.5 or newer])
 593 AC_TRY_RUN([
 594 #include <plib/ul.h>
 595
 596 #define MIN_PLIB_VERSION 185
 597
 598 int main() {
 599     if ( PLIB_VERSION < MIN_PLIB_VERSION ) {
 600          return -1;
 601     }
 602
 603     return 0;
 604 }
 605
 606 ],
 607   AC_MSG_RESULT(yes),
 608   [AC_MSG_RESULT(wrong version);
 609    AC_MSG_ERROR([Install plib 1.8.5 or later first...])],
 610   AC_MSG_RESULT(yes)
 611 )
 612
 613 dnl If we get here then plib is available, so force use of plib
 614 dnl joystick lib
 615 AC_DEFINE([ENABLE_PLIB_JOYSTICK], 1, [Define to enable plib joystick support])
 616
 617 # Find the OSG libraries.  Note special handling for OS X frameworks
 618 if test "x$with_osg_framework" = "x"; then
 619     if test "x$enable_osgdebug" = "xyes"; then
 620         AC_CHECK_LIB(OpenThreadsd,OpenThreadsGetVersion, , [AC_MSG_ERROR(OpenThreads library not found.)],)
 621         AC_CHECK_LIB(osgd,osgGetVersion, , [AC_MSG_ERROR(OpenSceneGraph library not found.)],)
 622         AC_CHECK_LIB(osgUtild,osgUtilGetVersion, , [AC_MSG_ERROR(OpenSceneGraph utility library not found.)],)
 623         AC_CHECK_LIB(osgDBd,osgDBGetVersion, , [AC_MSG_ERROR(OpenSceneGraph database library not found.)],)
 624         AC_CHECK_LIB(osgTextd,osgTextGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Text library not found.)],)
 625         AC_CHECK_LIB(osgGAd,osgGAGetVersion, , [AC_MSG_ERROR(OpenSceneGraph GUI Abstraction library not found.)],)
 626         AC_CHECK_LIB(osgViewerd,osgViewerGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Viewer library not found.)],)
 627         AC_CHECK_LIB(osgSimd,osgSimGetVersion, , [AC_MSG_ERROR(OpenSceneGraph simulation library not found.)],)
 628         AC_CHECK_LIB(osgParticled,osgParticleGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Particle library not found.)],)
 629         AC_CHECK_LIB(osgFXd, osgFXGetVersion, , [AC_MSG_ERROR(OpenSceneGraph FX library not found.)],)
 630     else
 631         AC_CHECK_LIB(OpenThreads,OpenThreadsGetVersion, , [AC_MSG_ERROR(OpenThreads library not found.)],)
 632         AC_CHECK_LIB(osg,osgGetVersion, , [AC_MSG_ERROR(OpenSceneGraph library not found.)],)
 633         AC_CHECK_LIB(osgUtil,osgUtilGetVersion, , [AC_MSG_ERROR(OpenSceneGraph utility library not found.)],)
 634         AC_CHECK_LIB(osgDB,osgDBGetVersion, , [AC_MSG_ERROR(OpenSceneGraph database library not found.)],)
 635         AC_CHECK_LIB(osgText,osgTextGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Text library not found.)],)
 636         AC_CHECK_LIB(osgGA,osgGAGetVersion, , [AC_MSG_ERROR(OpenSceneGraph GUI Abstraction library not found.)],)
 637         AC_CHECK_LIB(osgViewer,osgViewerGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Viewer library not found.)],)
 638         AC_CHECK_LIB(osgSim,osgSimGetVersion, , [AC_MSG_ERROR(OpenSceneGraph simulation library not found.)],)
 639         AC_CHECK_LIB(osgParticle,osgParticleGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Particle library not found.)],)
 640         AC_CHECK_LIB(osgFX, osgFXGetVersion, , [AC_MSG_ERROR(OpenSceneGraph FX library not found.)],)
 641     fi
 642 else
 643     # Checking osg frameworks.
 644     AC_CHECK_FRAMEWORK(osgViewer, [#include <osgViewer/Version>], $with_osg_framework)
 645     AC_CHECK_FRAMEWORK(osgGA, [#include <osgGA/Version>], $with_osg_framework)
 646     AC_CHECK_FRAMEWORK(osgText, [#include <osgText/Version>], $with_osg_framework)
 647     AC_CHECK_FRAMEWORK(osgFX, [#include <osgFX/AnisotropicLighting>], $with_osg_framework)
 648     AC_CHECK_FRAMEWORK(osgUtil, [#include <osgUtil/Version>], $with_osg_framework)
 649     AC_CHECK_FRAMEWORK(osgDB, [#include <osgDB/Version>], $with_osg_framework)
 650     AC_CHECK_FRAMEWORK(osgSim, [#include <osgSim/Version>], $with_osg_framework)
 651     AC_CHECK_FRAMEWORK(osgParticle, [#include <osgParticle/Version>], $with_osg_framework)
 652     AC_CHECK_FRAMEWORK(osg, [#include <osg/Version>], $with_osg_framework)
 653     osg_FRAMEWORKS="$FRAMEWORKS"
 654     FRAMEWORKS=""
 655     AC_CHECK_FRAMEWORK(OpenThreads, [#include <OpenThreads/Version>], $with_osg_framework)
 656     openthreads_FRAMEWORK="$FRAMEWORKS"
 657     AC_SUBST(osg_FRAMEWORKS)
 658     AC_SUBST(openthreads_FRAMEWORK)
 659 fi
 660 AM_CONDITIONAL(HAVE_FRAMEWORK_OSG, test "x$ac_cv_framework_osg" != "x")
 661
 662 AC_CHECK_HEADER(osg/Version)
 663 if test "x$ac_cv_header_osg_Version" != "xyes"; then
 664     echo
 665     echo "You *must* have the OpenSceneGraph support library installed on your system"
 666     echo "to build the FGFS simulator!"
 667     echo
 668     echo "Please see README.OSG for more details."
 669     echo
 670     echo "configure aborted."
 671     exit
 672 fi
 673
 674
 675 AC_MSG_CHECKING([checking for osg::CullSettings::CLEAR_MASK])
 676 AC_COMPILE_IFELSE(
 677   [AC_LANG_PROGRAM([[#include <osg/CullSettings>]],
 678     [[osg::CullSettings::VariablesMask mask = osg::CullSettings::CLEAR_MASK;]])],
 679   [AC_DEFINE([HAVE_CULLSETTINGS_CLEAR_MASK],1,[define if OSG has CullSettings::CLEAR_MASK])
 680    AC_MSG_RESULT([yes])],
 681   [AC_MSG_RESULT([no])])
 682
 683 # Special handling for static version of OSG
 684 if test -n "`echo "$CPPFLAGS" "$CXXFLAGS" "$CFLAGS" | grep "\-DOSG_LIBRARY_STATIC" 2>/dev/null`" ; then
 685     saved_LIBS="$LIBS"
 686     LIBS=""
 687     #***** Check image support (needed for static build) *****
 688     AC_SEARCH_LIBS([jpeg_read_header], [jpeg], [CPPFLAGS="$CPPFLAGS -DOSG_JPEG_ENABLED"])
 689     AC_SEARCH_LIBS([png_read_image], [png 'png -lz'], [CPPFLAGS="$CPPFLAGS -DOSG_PNG_ENABLED"])
 690     AC_SEARCH_LIBS([TIFFOpen], [tiff], [CPPFLAGS="$CPPFLAGS -DOSG_TIFF_ENABLED"])
 691     img_LIBS="$LIBS"
 692     LIBS="$saved_LIBS"
 693
 694     if test "x$with_osg" != "x" ; then
 695         osg_prefix="$with_osg"
 696     else
 697         osg_prefix="/usr"
 698     fi
 699     PKG_CHECK_EXISTS([openscenegraph], [osg_version="`$PKG_CONFIG --modversion openscenegraph 2>/dev/null`"])
 700     LIBS="-L$osg_prefix/lib/osgPlugins-$osg_version -losgdb_bmp -losgdb_dds -losgdb_hdr -losgdb_pic -losgdb_pnm -losgdb_rgb -losgdb_tga \
 701                                                           -losgdb_3ds -losgdb_ac -losgdb_ive -losgdb_osg -losgdb_txf \
 702                                                           -losgVolume -losgTerrain $LIBS -losgUtil"
 703
 704     if test -n "`echo "$CPPFLAGS" "$CXXFLAGS" "$CFLAGS" | grep "\-DOSG_JPEG_ENABLED" 2>/dev/null`" ; then
 705       LIBS="$LIBS -losgdb_jpeg"
 706     fi
 707     if test -n "`echo "$CPPFLAGS" "$CXXFLAGS" "$CFLAGS" | grep "\-DOSG_PNG_ENABLED" 2>/dev/null`" ; then
 708       LIBS="$LIBS -losgdb_png"
 709     fi
 710     if test -n "`echo "$CPPFLAGS" "$CXXFLAGS" "$CFLAGS" | grep "\-DOSG_TIFF_ENABLED" 2>/dev/null`" ; then
 711       LIBS="$LIBS -losgdb_tiff"
 712     fi
 713
 714     LIBS="$LIBS $img_LIBS"
 715 fi
 716
 717 AC_LANG_POP
 718
 719 dnl Check for system installed zlib
 720 AC_CHECK_HEADER(zlib.h)
 721 if test "x$ac_cv_header_zlib_h" != "xyes"; then
 722     echo
 723     echo "zlib library not found."
 724     echo
 725     echo "If your OS does not provide an installable package for zlib"
 726     echo "you will have to compile and install it first yourself.  A copy"
 727     echo "of zlib-1.1.4.tar.gz is included with SimGear.  You will"
 728     echo "have to untar this source code, and follow it's included instructions"
 729     echo "to compile and install on your system."
 730     echo
 731     echo "configure aborted."
 732     echo
 733 fi
 734
 735 dnl Check for Subversion library support
 736 save_LIBS=$LIBS
 737 save_CPPFLAGS=$CPPFLAGS
 738 LIBS=""
 739 CPPFLAGS="-I/usr/include/subversion-1 `apr-1-config --includes`"
 740 AC_CHECK_LIB(svn_client-1, svn_client_checkout3)
 741 AC_CHECK_HEADERS([svn_client.h glut.h])
 742 if test "x$ac_cv_header_svn_client_h" != "xyes"; then
 743   echo "TerraSync will shell out for command line subversion"
 744   svn_LIBS=""
 745   svn_CPPFLAGS=""
 746 else
 747   echo "TerraSync will use integrated subversion library"
 748   AC_SEARCH_LIBS(svn_client_checkout, svn_client-1)
 749   svn_LIBS=$LIBS
 750   svn_CPPFLAGS=$CPPFLAGS
 751   AC_SUBST(svn_LIBS)
 752   AC_SUBST(svn_CPPFLAGS)
 753 fi
 754 LIBS=$save_LIBS
 755 CPPFLAGS=$save_CPPFLAGS
 756
 757 AC_MSG_CHECKING([for feenableexcept])
 758 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define _GNU_SOURCE
 759 #include <fenv.h>]], [[feenableexcept(FE_DIVBYZERO)]])],
 760 [AC_DEFINE([HAVE_FEENABLEEXCEPT], 1, [define if system has fenableexcept])],
 761 AC_MSG_RESULT([yes]),
 762 AC_MSG_RESULT([no]))
 763
 764 dnl Checks for header files.
 765 AC_HEADER_STDC
 766 AC_CHECK_HEADERS( \
 767         fcntl.h getopt.h malloc.h memory.h stdlib.h sys/param.h sys/stat.h \
 768         sys/time.h sys/timeb.h unistd.h windows.h values.h )
 769
 770 dnl Checks for typedefs, structures, and compiler characteristics.
 771 AC_C_CONST
 772 AC_TYPE_SIZE_T
 773 AC_HEADER_TIME
 774 AC_STRUCT_TM
 775
 776 dnl Checks for library functions.
 777 old_LIBS=$LIBS
 778 LIBS="$base_LIBS $network_LIBS $opengl_LIBS"
 779 AC_TYPE_SIGNAL
 780 AC_FUNC_VPRINTF
 781 AC_CHECK_FUNCS( [ \
 782         ftime gettimeofday timegm memcpy bcopy mktime strstr rand mkfifo \
 783         random drand48 setitimer getitimer signal GetLocalTime rint getrusage \
 784         truncf ] )
 785 LIBS=$old_LIBS
 786
 787 AM_CONFIG_HEADER(src/Include/config.h)
 788
 789 AC_CONFIG_FILES([ \
 790         Makefile \
 791         man/Makefile \
 792         man/est-epsilon.1 \
 793         man/fgfs.1 \
 794         man/fgjs.1 \
 795         man/gl-info.1 \
 796         man/js_demo.1 \
 797         man/pstest.1 \
 798         scripts/Makefile \
 799         scripts/debug/Makefile \
 800         scripts/perl/Makefile \
 801         scripts/perl/examples/Makefile \
 802         scripts/python/Makefile \
 803         src/Makefile \
 804         src/Include/Makefile \
 805         src/Include/version.h \
 806         src/Include/config.h-msvc6 \
 807         src/Include/config.h-msvc71 \
 808         src/Include/config.h-msvc8 \
 809         src/Include/config.h-msvc90 \
 810         src/Aircraft/Makefile \
 811         src/Airports/Makefile \
 812         src/ATC/Makefile \
 813         src/ATCDCL/Makefile \
 814         src/Autopilot/Makefile \
 815         src/Cockpit/Makefile \
 816         src/Cockpit/built_in/Makefile \
 817         src/Environment/Makefile \
 818         src/FDM/ExternalNet/Makefile \
 819         src/FDM/ExternalPipe/Makefile \
 820         src/FDM/JSBSim/Makefile \
 821         src/FDM/JSBSim/initialization/Makefile \
 822         src/FDM/JSBSim/input_output/Makefile \
 823         src/FDM/JSBSim/math/Makefile \
 824         src/FDM/JSBSim/models/Makefile \
 825         src/FDM/JSBSim/models/flight_control/Makefile \
 826         src/FDM/JSBSim/models/atmosphere/Makefile \
 827         src/FDM/JSBSim/models/propulsion/Makefile \
 828         src/FDM/LaRCsim/Makefile \
 829         src/FDM/SP/Makefile \
 830         src/FDM/UIUCModel/Makefile \
 831         src/FDM/YASim/Makefile \
 832         src/FDM/Makefile \
 833         src/GUI/Makefile \
 834         src/Input/Makefile \
 835         src/Instrumentation/Makefile \
 836         src/Instrumentation/KLN89/Makefile \
 837         src/Instrumentation/HUD/Makefile \
 838         src/Main/Makefile \
 839         src/Main/runfgfs \
 840         src/Main/runfgfs.bat \
 841         src/Model/Makefile \
 842         src/AIModel/Makefile \
 843         src/MultiPlayer/Makefile \
 844         src/Navaids/Makefile \
 845         src/Network/Makefile \
 846         src/Scenery/Makefile \
 847         src/Scripting/Makefile \
 848         src/Sound/Makefile \
 849         src/Systems/Makefile \
 850         src/Time/Makefile \
 851         src/Traffic/Makefile \
 852         tests/Makefile \
 853         utils/Makefile \
 854         utils/GPSsmooth/Makefile \
 855         utils/fgadmin/Makefile
 856         utils/fgadmin/src/Makefile \
 857         utils/js_server/Makefile \
 858         utils/Modeller/Makefile \
 859         utils/propmerge/Makefile \
 860         utils/TerraSync/Makefile \
 861         utils/xmlgrep/Makefile \
 862         utils/fgviewer/Makefile
 863 ])
 864 AC_OUTPUT
 865
 866 AC_OUTPUT_COMMANDS([chmod 755 src/Main/runfgfs])
 867
 868 echo ""
 869 echo "Configure Summary"
 870 echo "================="
 871
 872 echo "Prefix: $prefix"
 873
 874 if test "x$with_logging" != "x"; then
 875     echo "Debug messages: $with_logging"
 876 else
 877     echo "Debug messages: yes"
 878 fi
 879
 880 echo -n "Automake version: "
 881 automake --version | head -n 1
 882
 883 if test "x$with_multiplayer" != "xno"; then
 884     echo "Building with multiplayer support"
 885 fi
 886
 887 if test "x$with_threads" = "xyes"; then
 888     echo "threads: yes"
 889 else
 890     echo "threads: no"
 891 fi
 892
 893 if test "x$with_eventinput" = "xyes"; then
 894     echo "event input: yes"
 895 else
 896     echo "event input: no"
 897 fi
 898
 899 if test "x$enable_sp_fdms" != "xno"; then
 900     echo "Include special purpose flight models: yes"
 901 else
 902     echo "Include special purpose flight models: no"
 903 fi
 904