configure.ac

   1 dnl Process this file with autogen.sh to produce a working configure
   2 dnl script.
   3
   4 AC_INIT(FlightGear, m4_esyscmd([cat ./version | tr -d '\n']), [http://www.flightgear.org])
   5
   6 dnl Ensure touching the version causes autoconf to re-run
   7 AC_SUBST([CONFIGURE_DEPENDENCIES], ['$(top_srcdir)/version'])
   8
   9 AC_CONFIG_SRCDIR([src/Airports/simple.cxx])
  10
  11 dnl Require at least automake 2.52
  12 AC_PREREQ(2.52)
  13
  14 dnl Initialize the automake stuff
  15 dnl set the $host variable based on local machine/os
  16 AC_CANONICAL_TARGET
  17 AM_INIT_AUTOMAKE([dist-bzip2])
  18
  19 # variables for version.h
  20 AC_DEFINE([HAVE_VERSION_H], 1, [Set if version.h is generated])
  21
  22 # are we running under Hudson? (defines BUILD_ID, BUILD_NUMBER in the environment)
  23 if test "x$BUILD_ID" != "x" ; then
  24     AC_SUBST([HUDSON_BUILD_ID], $BUILD_ID)
  25     AC_SUBST([HUDSON_BUILD_NUMBER], $BUILD_NUMBER)
  26 else
  27     AC_SUBST([HUDSON_BUILD_ID], [none])
  28     AC_SUBST([HUDSON_BUILD_NUMBER], 0)
  29 fi
  30
  31 AC_CHECK_PROG([HAVE_GIT], git, 1)
  32 if test "x$HAVE_GIT" != "x" ; then
  33     # git might be installed, but we might be building from a tarball
  34     if git rev-parse ; then
  35         AC_SUBST([REVISION], `git rev-parse HEAD`)
  36     else
  37         AC_SUBST([REVISION], [none])
  38     fi
  39 else
  40     AC_SUBST([REVISION], [none])
  41 fi
  42
  43 dnl Checks for programs.
  44 AC_PROG_MAKE_SET
  45 AC_PROG_CC
  46 AC_PROG_CPP
  47 AC_PROG_CXX
  48 AC_PROG_CXXCPP
  49 AC_PROG_RANLIB
  50 AC_PROG_INSTALL
  51 AC_PROG_LN_S
  52 AX_BOOST_BASE([1.37.0])
  53
  54 # Show all compiler warnings by default
  55 CXXFLAGS="$CXXFLAGS -Wall"
  56 CFLAGS="$CFLAGS -Wall"
  57
  58 if test "x$BOOST_CPPFLAGS" != "x-I/usr/include" ; then
  59    CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
  60 fi
  61
  62 # specify the simgear location
  63 AC_ARG_WITH(simgear, [  --with-simgear=PREFIX   Specify the prefix path to SimGear])
  64
  65 if test "x$with_simgear" != "x" ; then
  66     echo "SimGear prefix path is $with_simgear"
  67     EXTRA_DIRS="${EXTRA_DIRS} $with_simgear"
  68     CXXFLAGS="$CXXFLAGS -I$with_simgear"
  69 fi
  70
  71 # specify the plib location
  72 AC_ARG_WITH(plib, [  --with-plib=PREFIX      Specify the prefix path to plib])
  73
  74 if test "x$with_plib" != "x" ; then
  75     echo "plib prefix is $with_plib"
  76     EXTRA_DIRS="${EXTRA_DIRS} $with_plib"
  77 fi
  78
  79 # specify the osg location
  80 AC_ARG_WITH(osg, [  --with-osg=PREFIX       Specify the prefix path to osg])
  81
  82 if test "x$with_osg" != "x" ; then
  83     echo "osg prefix is $with_osg"
  84     EXTRA_DIRS="${EXTRA_DIRS} $with_osg"
  85 fi
  86
  87 # specify framework related locations for Mac OS X
  88 case "${host}" in
  89 *-apple-darwin*)
  90
  91     dnl Thank you Christian Bauer from SheepSaver
  92     dnl Modified by Tatsuhiro Nishioka for accepting a given framework path
  93     dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES, $3=FRAMEWORK_PATH, $4=ACTION_IF_FOUND) ;
  94     AC_DEFUN([AC_CHECK_FRAMEWORK], [
  95     AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
  96     AC_CACHE_CHECK([whether compiler supports framework $1],
  97         ac_Framework, [
  98         saved_LIBS="$LIBS"
  99         FRAMEWORKS="$FRAMEWORKS -framework $1"
 100         if test "$3" = ""; then
 101             FRAMEWORKS="$FRAMEWORKS $ADD2LD"
 102         elif test "`echo $FRAMEWORKS | grep -- -F$3`" = ""; then
 103             FRAMEWORKS="$FRAMEWORKS -F$3"
 104             CXXFLAGS="$CXXFLAGS -F$3"
 105             CCFLAGS="$CCFLAGS -F$3"
 106             CPPFLAGS="$CPPFLAGS -F$3"
 107             dnl This is needed for AC_TRY_LINK when a framework path is specified
 108             export DYLD_FRAMEWORK_PATH="${DYLD_FRAMEWORK_PATH}:$3"
 109         fi
 110         AC_TRY_LINK(
 111         [$2], [],
 112         [AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
 113         )
 114     ])
 115     AS_IF([test AS_VAR_GET(ac_Framework) = yes],
 116         [AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
 117     )
 118     AS_IF([test AS_VAR_GET(ac_Framework) = yes], $4)
 119     AS_VAR_POPDEF([ac_Framework])dnl
 120     ])
 121
 122     # Mac OS X specific configure options
 123     AC_ARG_WITH(cocoa_framework, [  --with-cocoa-framework         Use the Cocoa rather than Carbon])
 124     if test "x$with_cocoa_framework" != "x" ; then
 125         macAPI=Cocoa
 126         AC_MSG_NOTICE([Using Cocoa framework])
 127     else
 128         macAPI=Carbon
 129         AC_MSG_NOTICE([Using Carbon framework])
 130     fi
 131
 132     AC_ARG_WITH(osg_framework, [  --with-osg-framework=PREFIX    Specify the prefix path to osg frameworks [default=standard framework paths]])
 133     if test "x$with_osg_framework" != "x" ; then
 134         echo "osg prefix is $with_osg_framework"
 135         export DYLD_FRAMEWORK_PATH="$DYLD_FRAMEWORK_PATH:$with_osg_framework"
 136     fi
 137
 138     AC_ARG_WITH(plib_framework, [  --with-plib-framework=PREFIX   Specify the prefix path to PLIB framework [default=standard framework paths]])
 139     if test "x$with_plib_framework" != "x" ; then
 140         echo "plib prefix is $with_plib_framework"
 141         export DYLD_FRAMEWORK_PATH="$DYLD_FRAMEWORK_PATH:$with_plib_framework"
 142     fi
 143
 144     AC_ARG_WITH(alut_framework, [  --with-alut-framework=PREFIX   Specify the prefix path to ALUT.framework ])
 145     if test "x$with_alut_framework" != "x"; then
 146         echo "ALUT framework prefix is $with_alut_framework"
 147     fi
 148
 149     ;;
 150 esac
 151
 152 dnl Determine an extra directories to add to include/lib search paths
 153 case "${host}" in
 154 *-apple-darwin* | *-*-mingw32*)
 155     echo no EXTRA_DIRS for $host
 156     ;;
 157
 158 *-*-cygwin*)
 159     if test -d /usr/local ; then
 160         EXTRA_DIRS="${EXTRA_DIRS} /usr/local"
 161     fi
 162     ;;
 163
 164 *)
 165     if test -d /usr/X11R6 ; then
 166         EXTRA_DIR1="/usr/X11R6"
 167     fi
 168     if test -d /opt/X11R6 ; then
 169         EXTRA_DIR2="/opt/X11R6"
 170     fi
 171     EXTRA_DIRS="${EXTRA_DIRS} $EXTRA_DIR1 $EXTRA_DIR2 /usr/local"
 172     ;;
 173
 174 esac
 175 wi_EXTRA_DIRS(no, ${EXTRA_DIRS})
 176
 177
 178 case "${host}" in
 179 *-*-irix*)
 180     if test "$CXX" = "CC"; then
 181         AR="CC -ar"
 182         ARFLAGS="-o"
 183         CXXFLAGS="$CXXFLAGS -c99 -I$with_simgear/include/simgear/compatibility"
 184         CFLAGS="$CFLAGS -c99"
 185     else
 186         AR="ar"
 187         ARFLAGS="cru"
 188     fi
 189     ;;
 190 *)
 191     AR="ar"
 192     ARFLAGS="cru"
 193     ;;
 194 esac
 195 AC_SUBST(AR)
 196 AC_SUBST(ARFLAGS)
 197
 198 dnl set logging; default value of with_logging=yes
 199 AC_ARG_WITH(logging, [  --with-logging          Include logging output (default)])
 200 if test "x$with_logging" = "xno" ; then
 201     AC_DEFINE([FG_NDEBUG], 1, [Define for no logging output])
 202 fi
 203
 204 AC_ARG_ENABLE(sp_fdms, [  --enable-sp-fdms               Include special purpose Flight Models], [enable_sp_fdms="$enableval"] )
 205 if test "x$enable_sp_fdms" != "xno"; then
 206     AC_DEFINE([ENABLE_SP_FDM], 1, [Define to include special purpose FDMs])
 207 else
 208     AC_DEFINE([ENABLE_SP_FDM], 0, [Define to include special purpose FDMs])
 209 fi
 210 AM_CONDITIONAL(ENABLE_SP_FDM, test "x$enable_sp_fdms" != "xno")
 211
 212 dnl EXPERIMENTAL generic event driven input device
 213 # defaults to no
 214 AC_ARG_WITH(eventinput, [  --with-eventinput       Include event driven input (EXPERIMENTAL) [default=no]], [], [with_eventinput=no])
 215 if test "x$with_eventinput" = "xyes"; then
 216     AC_DEFINE([WITH_EVENTINPUT], 1, [Define to enable generic event driven input device])
 217     case "${host}" in
 218     dnl OS specific sources for event driven input
 219     dnl Linux and Mac OS X are supported at this moment
 220     *-apple-darwin*)
 221         eventinput_EXTRA_OBJS="FGMacOSXEventInput.o"
 222         eventinput_INCUDES=""
 223         eventinput_LIBS=""
 224         ;;
 225     *linux*)
 226         dnl
 227         dnl FIXME: include paths for dbus are hard-coded at this moment.
 228         dnl FIXME: these must be found in configure
 229         dnl
 230         eventinput_EXTRA_OBJS="FGLinuxEventInput.o"
 231         eventinput_INCLUDES="-I/usr/include/dbus-1.0 -I/usr/lib64/dbus-1.0/include -I/usr/lib/dbus-1.0/include"
 232         eventinput_LIBS="-ldbus-1 -lhal"
 233         ;;
 234     *)
 235         echo "Event driven input is not supported on ${host}."
 236         ;;
 237     esac
 238     AC_SUBST(eventinput_EXTRA_OBJS)
 239     AC_SUBST(eventinput_INCLUDES)
 240     AC_SUBST(eventinput_LIBS)
 241 fi
 242 AM_CONDITIONAL(WITH_EVENTINPUT, test "x$with_eventinput" = "xyes")
 243
 244 dnl Thread related checks
 245 # defaults to yes
 246 AC_ARG_WITH(threads, [  --with-threads          Include tile loading threads [default=yes]], [], [with_threads=yes])
 247 if test "x$with_threads" = "xyes"; then
 248     AC_DEFINE([ENABLE_THREADS], 1, [Define to enable threaded tile paging])
 249     CXXFLAGS="$CXXFLAGS -D_REENTRANT"
 250     CFLAGS="$CFLAGS -D_REENTRANT"
 251 fi
 252 AC_CHECK_HEADER(pthread.h)
 253
 254 dnl Configure HLA support
 255 AC_ARG_WITH(rti13, [  --with-rti13[[=PATH]]     Enable the HLA/RTI 1.3 interface, set a path to the RTI13 RTI libraries (default=no)])
 256 if test "x$with_rti13" != "xno"; then
 257     if test "x$with_rti13" != "xyes"; then
 258         AC_SUBST(HLA_CPPFLAGS, "-I$with_rti13/include")
 259         AC_SUBST(HLA_LDFLAGS, "-L$with_rti13/lib")
 260     fi
 261
 262     dnl Configure HLA support
 263     AC_MSG_CHECKING([for simgear HLA/RTI support])
 264     AC_LANG_PUSH(C++)
 265     AC_TRY_COMPILE([
 266         #include <simgear/hla/HLAFederate.hxx>
 267         ],[
 268         new simgear::HLAFederate;
 269         ], simgear_hla=yes, simgear_hla=no)
 270     AC_MSG_RESULT($simgear_hla)
 271     if test "x$simgear_hla" = "xyes" ; then
 272         AC_MSG_CHECKING([for hla libraries])
 273         saved_LIBS="$LIBS"
 274         saved_LDFLAGS="$LDFLAGS"
 275         have_rti13=no
 276         for rti13libs in "-lRTI-NG -lFedTime" "-lRTI-NGd -lFedTimed" ; do
 277             if test "x$hla_libs" = "x" ; then
 278                 LIBS="-lsghla -lsgrti13 -lsgrti -lsgxml -lsgstructure -lsgmath -lsgdebug -lsgtiming $rti13libs -lrt $saved_LIBS"
 279                 LDFLAGS="$HLA_LDFLAGS $saved_LDFLAGS"
 280                 AC_TRY_LINK([
 281                     #include <simgear/hla/HLAFederate.hxx>
 282                     ],[
 283                     new simgear::HLAFederate;
 284                     ], [hla_libs="$rti13libs"; have_rti13=yes],)
 285             fi
 286         done
 287         LIBS="$saved_LIBS"
 288         LDFLAGS="$saved_LDFLAGS"
 289         AC_MSG_RESULT($have_rti13)
 290     fi
 291     AC_LANG_POP()
 292 fi
 293 dnl Currently only the rti13 variant, but in the future also rti1516
 294 AM_CONDITIONAL(WITH_HLA, test "x$have_rti13" = "xyes")
 295 if test "x$have_rti13" = "xyes" ; then
 296     AC_DEFINE([FG_HAVE_HLA], 1, [Define if HLA/RTI is available.])
 297     AC_SUBST(HLA_LIBS, "-lsghla -lsgrti13 -lsgrti $hla_libs")
 298 fi
 299
 300 dnl EXPERIMENTAL fgpanel application
 301 # defaults to no
 302 AC_ARG_WITH(fgpanel, [  --with-fgpanel          Include fgpanel application (EXPERIMENTAL) [default=no]], [], [with_fgpanel=no])
 303 if test "x$with_fgpanel" = "xyes"; then
 304     AC_DEFINE([WITH_FGPANEL], 1, [Define to enable fgpanel application])
 305 fi
 306 AM_CONDITIONAL(WITH_FGPANEL, test "x$with_fgpanel" = "xyes")
 307
 308 dnl Used by JSBSim to conditionally compile in fgfs interface code
 309 AC_DEFINE([FGFS], 1, [Define so that JSBSim compiles in 'library' mode])
 310
 311 # Check for MS Windows environment
 312 AC_CHECK_HEADER(windows.h)
 313
 314 dnl Using AM_CONDITIONAL is a step out of the protected little
 315 dnl automake fold so it is potentially dangerous.  But, we are
 316 dnl beginning to run into cases where the standard checks are not
 317 dnl enough.  AM_CONDITIONALS are then referenced to conditionally
 318 dnl build a Makefile.in from a Makefile.am which lets us define custom
 319 dnl includes, compile alternative source files, etc.
 320
 321 dnl Check for external variables daylight and timezone.
 322 AC_EXT_DAYLIGHT
 323 if test "$have_daylight" = yes; then
 324     AC_DEFINE([HAVE_DAYLIGHT], 1, [Define if system has daylight variable])
 325 fi
 326
 327 AC_EXT_TIMEZONE
 328 if test "$have_timezone" = yes; then
 329     AC_DEFINE([HAVE_TIMEZONE], 1, [Define if system has timezone variable])
 330 fi
 331
 332
 333 dnl add joystick support libraries
 334 dnl search for FreeBSD library
 335 AC_SEARCH_LIBS(hid_init, usbhid)
 336 joystick_LIBS="$LIBS"
 337 LIBS=""
 338
 339
 340 dnl ENABLE_AUDIO_SUPPORT could be depricated at any time in favor of
 341 dnl just assuming we have audio support on all platform.  We can
 342 dnl depend on plib to hide the details.
 343 AC_DEFINE([ENABLE_AUDIO_SUPPORT], 1, [Define for audio support])
 344
 345 dnl X11 might be installed on Mac OS X or cygwin/mingwin, we don't want
 346 dnl to use it if it is.
 347 case "${host}" in
 348 *-apple-darwin* | *-*-cygwin* | *-*-mingw32*)
 349     echo no fancy X11 check
 350     ;;
 351
 352 *)
 353     AC_PATH_XTRA
 354     ;;
 355
 356 esac
 357
 358 dnl Checks for libraries.
 359
 360 dnl Thread related checks
 361 AC_SEARCH_LIBS(pthread_create, [pthread c_r])
 362 if test "x$ac_cv_header_pthread_h" = "xyes"; then
 363   if test "x$ac_cv_search_pthread_exit" = "x-lc_r"; then
 364     CXXFLAGS="-pthread $CXXFLAGS"
 365     CFLAGS="-pthread $CFLAGS"
 366     LIBS="-lsgthreads $LIBS"
 367   fi
 368 fi
 369
 370 thread_LIBS="$LIBS"
 371 LIBS=""
 372
 373 dnl search for network related libraries
 374 AC_SEARCH_LIBS(inet_addr, xnet)
 375 AC_SEARCH_LIBS(socket, socket)
 376 AC_SEARCH_LIBS(main, nsl)
 377
 378 network_LIBS="$LIBS"
 379 LIBS=""
 380
 381 dnl check for some default libraries
 382 AC_SEARCH_LIBS(sqrt, [am ffm fm fastm m])
 383 AC_SEARCH_LIBS(ceil, m)
 384 AC_SEARCH_LIBS(dlclose, dl)
 385 AC_SEARCH_LIBS(clock_gettime, rt)
 386
 387 base_LIBS="$LIBS"
 388
 389 dnl Check for SDL or glut if enabled.
 390 AC_ARG_ENABLE(osgviewer, [  --enable-osgviewer             Configure to use osgViewer (default)], [enable_osgviewer="$enableval"])
 391 AC_ARG_ENABLE(sdl,  [  --enable-sdl                   Configure to use SDL], [enable_sdl="$enableval"])
 392 AC_ARG_ENABLE(glut, [  --enable-glut                  Configure to use GLUT], [enable_glut="$enableval"])
 393 AM_CONDITIONAL(USE_SDL, test "x$enable_sdl" = "xyes")
 394 AM_CONDITIONAL(USE_GLUT, test "x$enable_glut" = "xyes")
 395 if test "x$enable_sdl" != "xyes" -a "x$enable_glut" != "xyes" -a "x$enable_osgviewer" != "xno"; then
 396    enable_osgviewer="yes"
 397 fi
 398 if test \( "x$enable_osgviewer" = "xyes" \
 399    -a \( "x$enable_sdl" = "xyes" -o "x$enable_glut" = "xyes" \) \) \
 400    -o \( "x$enable_sdl" = "xyes" -a "x$enable_glut" = "xyes" \); then
 401    echo " Only one of --enable-osgviewer, --enable-sdl, or --enable -glut may"
 402    echo " be supplied."
 403    exit
 404 fi
 405 AC_DEFINE([PU_USE_NONE], 1, [Define to use application's pu callbacks])
 406
 407 AC_ARG_ENABLE(osgdebug, [  --enable-osgdebug              Use OSG debug libraries], [enable_osgdebug="$enableval"])
 408
 409 dnl check for OpenGL related libraries
 410 case "${host}" in
 411 *-*-cygwin* | *-*-mingw32*)
 412     dnl CygWin under Windoze.
 413
 414     echo Win32 specific hacks...
 415     AC_DEFINE([WIN32], 1, [Define for Win32 platforms])
 416     AC_DEFINE([NOMINMAX], 1, [Define for Win32 platforms])
 417
 418     if test "x$enable_sdl" = "xyes"; then
 419         AC_SEARCH_LIBS(SDL_Init, SDL)
 420     else
 421         LIBS="$LIBS -lglut32"
 422     fi
 423
 424     LIBS="$LIBS -lglu32 -lopengl32 -luser32 -lgdi32"
 425     joystick_LIBS="$joystick_LIBS -lwinmm"
 426
 427     dnl add -lwsock32 for mingwin
 428     case "${host}" in
 429     *-*-mingw32*)
 430         echo "********** BUILDING FOR MINGW32 *************"
 431         network_LIBS="$network_LIBS -lws2_32"
 432         ;;
 433     esac
 434
 435     echo "Will link apps with $LIBS"
 436     ;;
 437
 438
 439 *-apple-darwin*)
 440     dnl Mac OS X
 441
 442     LIBS="$LIBS -framework GLUT -framework OpenGL -framework AGL -framework $macAPI -lobjc"
 443     LDFLAGS="$LDFLAGS -headerpad_max_install_names"
 444     joystick_LIBS="$joystick_LIBS -framework IOKit -framework CoreFoundation"
 445     ;;
 446
 447 *)
 448     dnl X-Windows based machines
 449
 450     dnl Skip X11 library tests if requested.
 451     if test "x$no_x" != "xyes"; then
 452         AC_SEARCH_LIBS(XCreateWindow, X11)
 453         AC_SEARCH_LIBS(XShmCreateImage, Xext)
 454         AC_SEARCH_LIBS(XGetExtensionVersion, Xi)
 455         AC_SEARCH_LIBS(IceOpenConnection, ICE)
 456         AC_SEARCH_LIBS(SmcOpenConnection, SM)
 457         AC_SEARCH_LIBS(XtMalloc, Xt)
 458         AC_SEARCH_LIBS(XmuLookupStandardColormap, Xmu)
 459     fi
 460
 461     AC_SEARCH_LIBS(glNewList, [ GL GLcore MesaGL ])
 462     if test "x$ac_cv_search_glNewList" = "x-lGLcore"; then
 463         dnl if GLcore found, then also check for GL
 464         AC_SEARCH_LIBS(glXCreateContext, GL)
 465     fi
 466
 467     dnl if using mesa, check for xmesa.h
 468     if test "x$ac_cv_search_glNewList" = "x-lMesaGL"; then
 469         AC_CHECK_HEADER(GL/fxmesa.h)
 470         if test "x$ac_cv_header_GL_fxmesa_h" = "xyes"; then
 471             AC_DEFINE([XMESA], 1, [Define for fxmesa])
 472             AC_DEFINE([FX], 1, [Define for fxmesa])
 473         fi
 474     fi
 475
 476     AC_SEARCH_LIBS(gluLookAt, [ GLU MesaGLU ])
 477     AC_SEARCH_LIBS(glutGetModifiers, [ glut freeglut ])
 478     if test "x$enable_sdl" = "xyes"; then
 479         AC_SEARCH_LIBS(SDL_Init, SDL)
 480     fi
 481     ;;
 482
 483 esac
 484
 485 opengl_LIBS="$LIBS"
 486 LIBS="$base_LIBS $joystick_LIBS"
 487
 488 dnl check for OpenAL libraries
 489 OPENAL_OK="no"
 490 ALUT_OK="no"
 491 case "${host}" in
 492 *-*-cygwin* | *-*-mingw32*)
 493     dnl CygWin under Windoze.
 494     INCLUDES="$INCLUDES -I/usr/local/include/"
 495     LIBS="$LIBS -L/usr/local/lib"
 496     AC_SEARCH_LIBS(alGenBuffers, [ openal32 openal 'openal -ldsound -lwinmm' ] )
 497     AC_SEARCH_LIBS(alutInit, [ openal32 ALut alut ] )
 498     LIBS="$LIBS -lwinmm -ldsound -ldxguid -lole32"
 499     openal_LIBS="$LIBS"
 500     OPENAL_OK="$ac_cv_search_alGenBuffers"
 501     ALUT_OK="$ac_cv_search_alutInit"
 502     ;;
 503
 504 *-apple-darwin*)
 505     dnl Mac OS X
 506
 507     # Mac OS X has OpenAL.framework, but no ALUT, by default, so we
 508     # require use of a non-Apple ALUT.framework which we provide
 509     openal_LIBS="-framework IOKit -framework OpenAL"
 510
 511     AC_CHECK_FRAMEWORK(OpenAL, [#include <OpenAL/al.h>], "", [OPENAL_OK="yes"])
 512     AC_CHECK_FRAMEWORK(ALUT, [#include <ALUT/alut.h>], $with_alut_framework, [
 513         ALUT_OK="yes"
 514         openal_LIBS="$openal_LIBS -framework ALUT"
 515     ])
 516     ;;
 517
 518 *)
 519     dnl default unix style machines
 520
 521     save_LIBS=$LIBS
 522     LIBS="$LIBS $thread_LIBS"
 523     AC_SEARCH_LIBS(alGenBuffers, openal)
 524     AC_SEARCH_LIBS(alutInit, [ alut openal ] )
 525     OPENAL_OK="$ac_cv_search_alGenBuffers"
 526     ALUT_OK="$ac_cv_search_alutInit"
 527     openal_LIBS="$LIBS"
 528     LIBS=$save_LIBS
 529     ;;
 530
 531 esac
 532
 533 if test "$OPENAL_OK" = "no"; then
 534     echo
 535     echo "You *must* have the openal library installed on your system to build"
 536     echo "SimGear!"
 537     echo
 538     echo "Please see README.OpenAL for more details."
 539     echo
 540     echo "configure aborted."
 541     exit
 542 fi
 543
 544 if test "$ALUT_OK" = "no"; then
 545     echo
 546     echo "You *must* have the alut library installed on your system to build"
 547     echo "SimGear!"
 548     echo
 549     echo "Please see README.OpenAL for more details."
 550     echo
 551     echo "configure aborted."
 552     exit
 553 fi
 554
 555
 556 LIBS="$base_LIBS"
 557
 558 AC_SUBST(base_LIBS)
 559 AC_SUBST(openal_LIBS)
 560 AC_SUBST(opengl_LIBS)
 561 AC_SUBST(thread_LIBS)
 562 AC_SUBST(network_LIBS)
 563 AC_SUBST(joystick_LIBS)
 564
 565 # The following are C++ items that need to be tested for with the c++
 566 # compiler
 567
 568 AC_LANG_PUSH(C++)
 569
 570 dnl Check for the presence of SimGear
 571 if test "x$with_simgear" != "x"; then
 572 AC_CHECK_HEADER($with_simgear/include/simgear/version.h, [ac_cv_header_simgear_version_h=yes], [ac_cv_header_simgear_version_h=no])
 573 else
 574 AC_CHECK_HEADER(simgear/version.h)
 575 fi
 576 if test "x$ac_cv_header_simgear_version_h" != "xyes"; then
 577     echo
 578     echo "You *must* have the SimGear support library installed on your system"
 579     echo "to build the FGFS simulator!"
 580     echo
 581     echo "Please see README.SimGear for more details."
 582     echo
 583     echo "configure aborted."
 584     exit
 585 fi
 586
 587 AC_MSG_CHECKING([for SimGear 2.5.0 or newer])
 588 AC_TRY_RUN([
 589 #include <stdio.h>
 590
 591 #include <simgear/version.h>
 592
 593 #define STRINGIFY(X) XSTRINGIFY(X)
 594 #define XSTRINGIFY(X) #X
 595
 596 #define MIN_MAJOR 2
 597 #define MIN_MINOR 3
 598 #define MIN_MICRO 0
 599
 600 int main() {
 601     int major, minor, micro;
 602
 603     /* printf("%d.%d.%d or greater, ", MIN_MAJOR, MIN_MINOR, MIN_MICRO); */
 604     printf("[found %s] ... ", STRINGIFY(SIMGEAR_VERSION));
 605
 606     sscanf( STRINGIFY(SIMGEAR_VERSION), "%d.%d.%d", &major, &minor, &micro );
 607
 608     if ( (major < MIN_MAJOR) ||
 609          (major == MIN_MAJOR && minor < MIN_MINOR) ||
 610          (major == MIN_MAJOR && minor == MIN_MINOR && micro < MIN_MICRO) ) {
 611          return -1;
 612     }
 613
 614     return 0;
 615 }
 616
 617 ],
 618   AC_MSG_RESULT(yes),
 619   [AC_MSG_RESULT(wrong version);
 620    AC_MSG_ERROR([Install latest SimGear first...])],
 621   AC_MSG_RESULT(yes)
 622 )
 623
 624 LIBS="$saved_LIBS"
 625
 626 dnl Check if SimGear was built with Norman's JPEG factory support
 627 if test "x$with_simgear" != "x"; then
 628 AC_CHECK_HEADER($with_simgear/include/simgear/screen/jpgfactory.hxx,[ac_cv_header_simgear_screen_jpgfactory_hxx=yes],[ac_cv_header_simgear_screen_jpgfactory_hxx=no])
 629 else
 630 AC_CHECK_HEADER(simgear/screen/jpgfactory.hxx)
 631 fi
 632 if test "x$ac_cv_header_simgear_screen_jpgfactory_hxx" = "xyes"; then
 633     AC_CHECK_LIB(jpeg, jpeg_start_compress)
 634     if test "x$ac_cv_lib_jpeg_jpeg_start_compress" != "xyes" ; then
 635         echo
 636         echo "The JPEG factory code was built and installed with SimGear."
 637         echo "However it appears the libjpeg is no longer installed."
 638         echo "You need to install libjpeg or remove jpgfactory support from"
 639         echo "SimGear"
 640         echo
 641         echo "libjpeg is available at :"
 642         echo "  ftp://ftp.uu.net in the directory graphics/jpeg"
 643         exit 1
 644     fi
 645     AC_DEFINE([FG_JPEG_SERVER], 1,
 646               [Define to build with jpeg screen shot server])
 647 fi
 648 AM_CONDITIONAL(ENABLE_JPEG_SERVER, test "x$ac_cv_header_simgear_screen_jpgfactory_hxx" = "xyes")
 649
 650 # Check for "plib" without which we cannot go on
 651 case "${host}" in
 652 *-apple-darwin*)
 653     if test "x$with_plib_framework" != "x"; then
 654         AC_CHECK_FRAMEWORK(PLIB, [#include <plib/ul.h>], $with_plib_framework, no)
 655         plib_FRAMEWORK="$FRAMEWORKS"
 656         AC_SUBST(plib_FRAMEWORK)
 657         FRAMEWORKS=""
 658     fi
 659     ;;
 660 esac
 661 AM_CONDITIONAL(HAVE_FRAMEWORK_PLIB, test "x$ac_cv_framework_PLIB" != "x")
 662
 663 AC_CHECK_HEADER(plib/ul.h)
 664 if test "x$ac_cv_header_plib_ul_h" != "xyes"; then
 665     echo
 666     echo "You *must* have the plib library installed on your system to build"
 667     echo "the FGFS simulator!"
 668     echo
 669     echo "Please see README.plib for more details."
 670     echo
 671     echo "configure aborted."
 672     exit
 673 fi
 674
 675 echo "$DYLD_FRAMEWORK_PATH"
 676 AC_MSG_CHECKING([for plib 1.8.5 or newer])
 677 AC_TRY_RUN([
 678 #include <plib/ul.h>
 679
 680 #define MIN_PLIB_VERSION 185
 681
 682 int main() {
 683     if ( PLIB_VERSION < MIN_PLIB_VERSION ) {
 684          return -1;
 685     }
 686
 687     return 0;
 688 }
 689
 690 ],
 691   AC_MSG_RESULT(yes),
 692   [AC_MSG_RESULT(wrong version);
 693    AC_MSG_ERROR([Install plib 1.8.5 or later first...])],
 694   AC_MSG_RESULT(yes)
 695 )
 696
 697 dnl If we get here then plib is available, so force use of plib
 698 dnl joystick lib
 699 AC_DEFINE([ENABLE_PLIB_JOYSTICK], 1, [Define to enable plib joystick support])
 700
 701 # Find the OSG libraries.  Note special handling for OS X frameworks
 702 if test "x$with_osg_framework" = "x"; then
 703     if test "x$enable_osgdebug" = "xyes"; then
 704         AC_CHECK_LIB(OpenThreadsd,OpenThreadsGetVersion, , [AC_MSG_ERROR(OpenThreads library not found.)],)
 705         AC_CHECK_LIB(osgd,osgGetVersion, , [AC_MSG_ERROR(OpenSceneGraph library not found.)],)
 706         AC_CHECK_LIB(osgUtild,osgUtilGetVersion, , [AC_MSG_ERROR(OpenSceneGraph utility library not found.)],)
 707         AC_CHECK_LIB(osgDBd,osgDBGetVersion, , [AC_MSG_ERROR(OpenSceneGraph database library not found.)],)
 708         AC_CHECK_LIB(osgTextd,osgTextGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Text library not found.)],)
 709         AC_CHECK_LIB(osgGAd,osgGAGetVersion, , [AC_MSG_ERROR(OpenSceneGraph GUI Abstraction library not found.)],)
 710         AC_CHECK_LIB(osgViewerd,osgViewerGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Viewer library not found.)],)
 711         AC_CHECK_LIB(osgSimd,osgSimGetVersion, , [AC_MSG_ERROR(OpenSceneGraph simulation library not found.)],)
 712         AC_CHECK_LIB(osgParticled,osgParticleGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Particle library not found.)],)
 713         AC_CHECK_LIB(osgFXd, osgFXGetVersion, , [AC_MSG_ERROR(OpenSceneGraph FX library not found.)],)
 714     else
 715         AC_CHECK_LIB(OpenThreads,OpenThreadsGetVersion, , [AC_MSG_ERROR(OpenThreads library not found.)],)
 716         AC_CHECK_LIB(osg,osgGetVersion, , [AC_MSG_ERROR(OpenSceneGraph library not found.)],)
 717         AC_CHECK_LIB(osgUtil,osgUtilGetVersion, , [AC_MSG_ERROR(OpenSceneGraph utility library not found.)],)
 718         AC_CHECK_LIB(osgDB,osgDBGetVersion, , [AC_MSG_ERROR(OpenSceneGraph database library not found.)],)
 719         AC_CHECK_LIB(osgText,osgTextGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Text library not found.)],)
 720         AC_CHECK_LIB(osgGA,osgGAGetVersion, , [AC_MSG_ERROR(OpenSceneGraph GUI Abstraction library not found.)],)
 721         AC_CHECK_LIB(osgViewer,osgViewerGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Viewer library not found.)],)
 722         AC_CHECK_LIB(osgSim,osgSimGetVersion, , [AC_MSG_ERROR(OpenSceneGraph simulation library not found.)],)
 723         AC_CHECK_LIB(osgParticle,osgParticleGetVersion, , [AC_MSG_ERROR(OpenSceneGraph Particle library not found.)],)
 724         AC_CHECK_LIB(osgFX, osgFXGetVersion, , [AC_MSG_ERROR(OpenSceneGraph FX library not found.)],)
 725     fi
 726 else
 727     # Checking osg frameworks.
 728     AC_CHECK_FRAMEWORK(osgViewer, [#include <osgViewer/Version>], $with_osg_framework)
 729     AC_CHECK_FRAMEWORK(osgGA, [#include <osgGA/Version>], $with_osg_framework)
 730     AC_CHECK_FRAMEWORK(osgText, [#include <osgText/Version>], $with_osg_framework)
 731     AC_CHECK_FRAMEWORK(osgFX, [#include <osgFX/AnisotropicLighting>], $with_osg_framework)
 732     AC_CHECK_FRAMEWORK(osgUtil, [#include <osgUtil/Version>], $with_osg_framework)
 733     AC_CHECK_FRAMEWORK(osgDB, [#include <osgDB/Version>], $with_osg_framework)
 734     AC_CHECK_FRAMEWORK(osgSim, [#include <osgSim/Version>], $with_osg_framework)
 735     AC_CHECK_FRAMEWORK(osgParticle, [#include <osgParticle/Version>], $with_osg_framework)
 736     AC_CHECK_FRAMEWORK(osg, [#include <osg/Version>], $with_osg_framework)
 737     osg_FRAMEWORKS="$FRAMEWORKS"
 738     FRAMEWORKS=""
 739     AC_CHECK_FRAMEWORK(OpenThreads, [#include <OpenThreads/Version>], $with_osg_framework)
 740     openthreads_FRAMEWORK="$FRAMEWORKS"
 741     AC_SUBST(osg_FRAMEWORKS)
 742     AC_SUBST(openthreads_FRAMEWORK)
 743 fi
 744 AM_CONDITIONAL(HAVE_FRAMEWORK_OSG, test "x$ac_cv_framework_osg" != "x")
 745
 746 AC_CHECK_HEADER(osg/Version)
 747 if test "x$ac_cv_header_osg_Version" != "xyes"; then
 748     echo
 749     echo "You *must* have the OpenSceneGraph support library installed on your system"
 750     echo "to build the FGFS simulator!"
 751     echo
 752     echo "Please see README.OSG for more details."
 753     echo
 754     echo "configure aborted."
 755     exit
 756 fi
 757
 758
 759 AC_MSG_CHECKING([checking for osg::CullSettings::CLEAR_MASK])
 760 AC_COMPILE_IFELSE(
 761   [AC_LANG_PROGRAM([[#include <osg/CullSettings>]],
 762     [[osg::CullSettings::VariablesMask mask = osg::CullSettings::CLEAR_MASK;]])],
 763   [AC_DEFINE([HAVE_CULLSETTINGS_CLEAR_MASK],1,[define if OSG has CullSettings::CLEAR_MASK])
 764    AC_MSG_RESULT([yes])],
 765   [AC_MSG_RESULT([no])])
 766
 767 # Special handling for static version of OSG
 768 if test -n "`echo "$CPPFLAGS" "$CXXFLAGS" "$CFLAGS" | grep "\-DOSG_LIBRARY_STATIC" 2>/dev/null`" ; then
 769     saved_LIBS="$LIBS"
 770     LIBS=""
 771     #***** Check image support (needed for static build) *****
 772     AC_SEARCH_LIBS([jpeg_read_header], [jpeg], [CPPFLAGS="$CPPFLAGS -DOSG_JPEG_ENABLED"])
 773     AC_SEARCH_LIBS([png_read_image], [png 'png -lz'], [CPPFLAGS="$CPPFLAGS -DOSG_PNG_ENABLED"])
 774     AC_SEARCH_LIBS([TIFFOpen], [tiff], [CPPFLAGS="$CPPFLAGS -DOSG_TIFF_ENABLED"])
 775     img_LIBS="$LIBS"
 776     LIBS="$saved_LIBS"
 777
 778     if test "x$with_osg" != "x" ; then
 779         osg_prefix="$with_osg"
 780     else
 781         osg_prefix="/usr"
 782     fi
 783     PKG_CHECK_EXISTS([openscenegraph], [osg_version="`$PKG_CONFIG --modversion openscenegraph 2>/dev/null`"])
 784     LIBS="-L$osg_prefix/lib/osgPlugins-$osg_version -losgdb_bmp -losgdb_dds -losgdb_hdr -losgdb_pic -losgdb_pnm -losgdb_rgb -losgdb_tga \
 785                                                           -losgdb_3ds -losgdb_ac -losgdb_ive -losgdb_osg -losgdb_txf \
 786                                                           -losgVolume -losgTerrain $LIBS -losgUtil"
 787
 788     if test -n "`echo "$CPPFLAGS" "$CXXFLAGS" "$CFLAGS" | grep "\-DOSG_JPEG_ENABLED" 2>/dev/null`" ; then
 789       LIBS="$LIBS -losgdb_jpeg"
 790     fi
 791     if test -n "`echo "$CPPFLAGS" "$CXXFLAGS" "$CFLAGS" | grep "\-DOSG_PNG_ENABLED" 2>/dev/null`" ; then
 792       LIBS="$LIBS -losgdb_png"
 793     fi
 794     if test -n "`echo "$CPPFLAGS" "$CXXFLAGS" "$CFLAGS" | grep "\-DOSG_TIFF_ENABLED" 2>/dev/null`" ; then
 795       LIBS="$LIBS -losgdb_tiff"
 796     fi
 797
 798     LIBS="$LIBS $img_LIBS"
 799 fi
 800
 801 AC_LANG_POP
 802
 803 dnl Check for system installed zlib
 804 AC_CHECK_HEADER(zlib.h)
 805 if test "x$ac_cv_header_zlib_h" != "xyes"; then
 806     echo
 807     echo "zlib library not found."
 808     echo
 809     echo "If your OS does not provide an installable package for zlib"
 810     echo "you will have to compile and install it first yourself.  A copy"
 811     echo "of zlib-1.1.4.tar.gz is included with SimGear.  You will"
 812     echo "have to untar this source code, and follow it's included instructions"
 813     echo "to compile and install on your system."
 814     echo
 815     echo "configure aborted."
 816     echo
 817 fi
 818
 819 dnl Check for Subversion library support
 820 # libsvn support defaults to yes
 821 save_LIBS=$LIBS
 822 save_CPPFLAGS=$CPPFLAGS
 823 AC_ARG_WITH(libsvn, [  --without-libsvn        Do not use built-in subversion (libsvn) for terrasync/fgfs [default=no]], [], [with_libsvn=yes])
 824 if test "x$with_libsvn" = "xyes"; then
 825     LIBS="`apr-1-config --link-ld`"
 826     CPPFLAGS="-I/usr/include/subversion-1 `apr-1-config --includes --cppflags`"
 827     AC_CHECK_HEADERS([svn_client.h])
 828        if test "x$ac_cv_header_svn_client_h" = "xyes"; then
 829         echo "Using built-in subversion (libsvn) for scenery downloads."
 830         AC_SEARCH_LIBS(svn_client_checkout, svn_client-1,
 831                        [AC_DEFINE([HAVE_LIBSVN_CLIENT_1], [1], [Define to 1 if you have libsvn_client-1])],
 832                        [AC_MSG_ERROR(svn_client-1 library not found.)],)
 833         AC_SEARCH_LIBS(svn_cmdline_init, svn_subr-1, , [AC_MSG_ERROR(svn_subr-1 library not found.)],)
 834         AC_SEARCH_LIBS(svn_ra_initialize, svn_ra-1, , [AC_MSG_ERROR(svn_ra-1 library not found.)],)
 835         svn_LIBS=$LIBS
 836         svn_CPPFLAGS=$CPPFLAGS
 837         AC_SUBST(svn_LIBS)
 838         AC_SUBST(svn_CPPFLAGS)
 839        else
 840         echo "Libsvn not found. Will use command line subversion for scenery downloads."
 841         svn_LIBS=""
 842         svn_CPPFLAGS=""
 843        fi
 844 else
 845 echo "Libsvn explicitly disabled. Will use command line subversion for scenery downloads."
 846   svn_LIBS=""
 847   svn_CPPFLAGS=""
 848 fi
 849 LIBS=$save_LIBS
 850 CPPFLAGS=$save_CPPFLAGS
 851
 852 AC_MSG_CHECKING([for feenableexcept])
 853 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define _GNU_SOURCE
 854 #include <fenv.h>]], [[feenableexcept(FE_DIVBYZERO)]])],
 855 [AC_DEFINE([HAVE_FEENABLEEXCEPT], 1, [define if system has fenableexcept])],
 856 AC_MSG_RESULT([yes]),
 857 AC_MSG_RESULT([no]))
 858
 859 dnl Checks for header files.
 860 AC_HEADER_STDC
 861 AC_CHECK_HEADERS( \
 862         fcntl.h getopt.h malloc.h memory.h stdlib.h sys/param.h sys/stat.h \
 863         sys/time.h sys/timeb.h unistd.h windows.h values.h )
 864
 865 dnl Checks for typedefs, structures, and compiler characteristics.
 866 AC_C_CONST
 867 AC_TYPE_SIZE_T
 868 AC_HEADER_TIME
 869 AC_STRUCT_TM
 870
 871 dnl Checks for library functions.
 872 old_LIBS=$LIBS
 873 LIBS="$base_LIBS $network_LIBS $opengl_LIBS"
 874 AC_TYPE_SIGNAL
 875 AC_FUNC_VPRINTF
 876 AC_CHECK_FUNCS( [ \
 877         ftime gettimeofday timegm memcpy bcopy mktime strstr rand mkfifo \
 878         random drand48 setitimer getitimer signal GetLocalTime rint getrusage \
 879         truncf ] )
 880 LIBS=$old_LIBS
 881
 882 AM_CONFIG_HEADER(src/Include/config.h)
 883
 884 AC_CONFIG_FILES([ \
 885         Makefile \
 886         man/Makefile \
 887         man/est-epsilon.1 \
 888         man/fgfs.1 \
 889         man/fgjs.1 \
 890         man/gl-info.1 \
 891         man/js_demo.1 \
 892         man/pstest.1 \
 893         scripts/Makefile \
 894         scripts/debug/Makefile \
 895         scripts/perl/Makefile \
 896         scripts/perl/examples/Makefile \
 897         scripts/perl/traffic/Makefile \
 898         scripts/python/Makefile \
 899         src/Makefile \
 900         src/Include/Makefile \
 901         src/Include/version.h \
 902         src/Aircraft/Makefile \
 903         src/Airports/Makefile \
 904         src/ATC/Makefile \
 905         src/ATCDCL/Makefile \
 906         src/Autopilot/Makefile \
 907         src/Cockpit/Makefile \
 908         src/Cockpit/built_in/Makefile \
 909         src/Environment/Makefile \
 910         src/FDM/ExternalNet/Makefile \
 911         src/FDM/ExternalPipe/Makefile \
 912         src/FDM/JSBSim/Makefile \
 913         src/FDM/JSBSim/initialization/Makefile \
 914         src/FDM/JSBSim/input_output/Makefile \
 915         src/FDM/JSBSim/math/Makefile \
 916         src/FDM/JSBSim/models/Makefile \
 917         src/FDM/JSBSim/models/flight_control/Makefile \
 918         src/FDM/JSBSim/models/atmosphere/Makefile \
 919         src/FDM/JSBSim/models/propulsion/Makefile \
 920         src/FDM/LaRCsim/Makefile \
 921         src/FDM/SP/Makefile \
 922         src/FDM/UIUCModel/Makefile \
 923         src/FDM/YASim/Makefile \
 924         src/FDM/Makefile \
 925         src/GUI/Makefile \
 926         src/Input/Makefile \
 927         src/Instrumentation/Makefile \
 928         src/Instrumentation/KLN89/Makefile \
 929         src/Instrumentation/HUD/Makefile \
 930         src/Main/Makefile \
 931         src/Main/runfgfs \
 932         src/Main/runfgfs.bat \
 933         src/Model/Makefile \
 934         src/AIModel/Makefile \
 935         src/MultiPlayer/Makefile \
 936         src/Navaids/Makefile \
 937         src/Network/Makefile \
 938         src/Network/HLA/Makefile \
 939         src/Scenery/Makefile \
 940         src/Scripting/Makefile \
 941         src/Sound/Makefile \
 942         src/Systems/Makefile \
 943         src/Time/Makefile \
 944         src/Traffic/Makefile \
 945         tests/Makefile \
 946         utils/Makefile \
 947         utils/GPSsmooth/Makefile \
 948         utils/fgadmin/Makefile
 949         utils/fgadmin/src/Makefile \
 950         utils/js_server/Makefile \
 951         utils/Modeller/Makefile \
 952         utils/propmerge/Makefile \
 953         utils/TerraSync/Makefile \
 954         utils/xmlgrep/Makefile \
 955         utils/fgviewer/Makefile \
 956         utils/fgpanel/Makefile
 957 ])
 958 AC_OUTPUT
 959
 960 AC_OUTPUT_COMMANDS([chmod 755 src/Main/runfgfs])
 961
 962 echo ""
 963 echo "Configure Summary"
 964 echo "================="
 965
 966 echo "Prefix: $prefix"
 967
 968 if test "x$with_logging" != "x"; then
 969     echo "Log messages: $with_logging"
 970 else
 971     echo "Log messages: yes"
 972 fi
 973
 974 echo -n "Automake version: "
 975 automake --version | head -n 1
 976
 977 if test "x$with_multiplayer" != "xno"; then
 978     echo "Building with multiplayer support"
 979 fi
 980
 981 if test "x$with_threads" = "xyes"; then
 982     echo "Threads: yes"
 983 else
 984     echo "Threads: no"
 985 fi
 986
 987 if test "x$with_eventinput" = "xyes"; then
 988     echo "Event input: yes"
 989 else
 990     echo "Event input: no"
 991 fi
 992
 993 if test "x$with_fgpanel" = "xyes"; then
 994     echo "fgpanel: yes"
 995 else
 996     echo "fgpanel: no"
 997 fi
 998
 999 if test "x$enable_sp_fdms" != "xno"; then
1000     echo "Include special purpose flight models: yes"
1001 else
1002     echo "Include special purpose flight models: no"
1003 fi