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revision 504 by schoenebeck, Tue May 3 00:37:35 2005 UTC revision 2183 by persson, Sat Jun 11 17:53:32 2011 UTC
# Line 1  Line 1 
1  AC_INIT(configure.in)  AC_INIT(configure.in)
2    
3    #------------------------------------------------------------------------------------
4    # LinuxSampler's / liblinuxsampler's "official" release version:
5    
6    LINUXSAMPLER_RELEASE_MAJOR=1
7    LINUXSAMPLER_RELEASE_MINOR=0
8    LINUXSAMPLER_RELEASE_BUILD=0.cvs10
9    
10    #------------------------------------------------------------------------------------
11    # The following is the libtool / shared library version. This doesn't have to
12    # do anything with the release version. It MUST conform to the following rules:
13    #
14    #  1. Start with version information of `0:0:0' for each libtool library.
15    #  2. Update the version information only immediately before a public release of
16    #     your software. More frequent updates are unnecessary, and only guarantee
17    #     that the current interface number gets larger faster.
18    #  3. If the library source code has changed at all since the last update, then
19    #     increment revision (`c:r:a' becomes `c:r+1:a').
20    #  4. If any interfaces have been added, removed, or changed since the last update,
21    #     increment current, and set revision to 0.
22    #  5. If any interfaces have been added since the last public release, then increment
23    #     age.
24    #  6. If any interfaces have been removed since the last public release, then set age
25    #     to 0.
26    
27    LIBLINUXSAMPLER_LT_CURRENT=3
28    LIBLINUXSAMPLER_LT_REVISION=0
29    LIBLINUXSAMPLER_LT_AGE=0
30    SHARED_VERSION_INFO="$LIBLINUXSAMPLER_LT_CURRENT:$LIBLINUXSAMPLER_LT_REVISION:$LIBLINUXSAMPLER_LT_AGE"
31    
32    #------------------------------------------------------------------------------------
33    # the LSCP specification version this LinuSampler release complies with:
34    
35    LSCP_RELEASE_MAJOR=1
36    LSCP_RELEASE_MINOR=5
37    
38    AC_DEFINE_UNQUOTED(LSCP_RELEASE_MAJOR, ${LSCP_RELEASE_MAJOR}, [LSCP spec major version this release complies with.])
39    AC_DEFINE_UNQUOTED(LSCP_RELEASE_MINOR, ${LSCP_RELEASE_MINOR}, [LSCP spec minor version this release complies with.])
40    
41    AC_PROG_CXX
42    AC_LIBTOOL_WIN32_DLL
43    AM_PROG_LIBTOOL
44    
45    AC_SUBST(SHLIB_VERSION_ARG)
46    AC_SUBST(SHARED_VERSION_INFO)
47    
48  AC_C_BIGENDIAN  AC_C_BIGENDIAN
49  AC_CANONICAL_SYSTEM  AC_CANONICAL_HOST
50    
51  AC_SUBST(target)  PKG_PROG_PKG_CONFIG
 AC_SUBST(target_alias)  
 AC_SUBST(target_cpu)  
 AC_SUBST(target_os)  
 AC_SUBST(target_vendor)  
52    
53    ###########################################################################
54    # General Checks
55    
56    AM_CONDITIONAL(CROSS_COMPILING, test $cross_compiling = yes)
57    
58  echo -n "checking whether x86 architecture... "  AC_MSG_CHECKING([whether x86 architecture])
59  def_arch_x86=0  def_arch_x86=0
60  case $target_cpu in  case $host_cpu in
61    "i386" | "i486" | "i586" | "i686" | "i786")    "i386" | "i486" | "i586" | "i686" | "i786" | "x86_64")
62      echo "yes"      echo "yes"
63      def_arch_x86=1;;      def_arch_x86=1;;
64    *)    *)
# Line 21  case $target_cpu in Line 66  case $target_cpu in
66  esac  esac
67  AC_DEFINE_UNQUOTED(ARCH_X86,$def_arch_x86,[Define to 1 if you build for x86 architecture.])  AC_DEFINE_UNQUOTED(ARCH_X86,$def_arch_x86,[Define to 1 if you build for x86 architecture.])
68    
69    # determine the right gcc switch for CPU specific optimizations
70    # (only if the user did not provide one)
71    CXX_CPU_SWITCH=
72    if ! echo "X $CXXFLAGS " | grep -q -- " \(-march=\|-mcpu=\|-mtune=\|-arch=\)" ; then
73      if test "$def_arch_x86" = 1 -a "$host_cpu" != "x86_64"; then
74        CXX_CPU_SWITCH="-march=$host_cpu"
75      elif test "$target_cpu" = "ppc"; then
76        CXX_CPU_SWITCH="-arch=$host_cpu"
77      fi
78    fi
79    AC_SUBST([CXX_CPU_SWITCH])
80    
81    # check if we're on MS Windows
82    AC_CHECK_HEADERS(
83        mmsystem.h,
84        have_windows=1,
85        have_windows=0,
86        [#include <windef.h>]
87    )
88    AM_CONDITIONAL(HAVE_WINDOWS, test $have_windows = "1")
89    
90  AC_MSG_CHECKING([whether UNIX98 compatible])  AC_MSG_CHECKING([whether UNIX98 compatible])
91  AC_LANG_SAVE  AC_LANG_SAVE
# Line 44  have_unix98="no" Line 109  have_unix98="no"
109  )  )
110  AC_LANG_RESTORE  AC_LANG_RESTORE
111  AC_MSG_RESULT([$have_unix98])  AC_MSG_RESULT([$have_unix98])
112  if test "$have_unix98" = "no"; then  if test "$have_unix98" = "no" -a "have_windows" = "0"; then
113      if test "x$HAVE_UNIX98" = "x"; then      if test "x$HAVE_UNIX98" = "x"; then
114          echo "LinuxSampler only runs on UNIX98 compatible systems, which is mandatory for"          echo "LinuxSampler only runs on UNIX98 compatible systems, which is mandatory for"
115          echo "pthread_mutexattr_settype() call in Mutex.cpp. You may want to run          echo "pthread_mutexattr_settype() call in Mutex.cpp. You may want to run
# Line 54  if test "$have_unix98" = "no"; then Line 119  if test "$have_unix98" = "no"; then
119      fi      fi
120  fi  fi
121    
122    # check for <features.h>
123    AC_CHECK_HEADERS(features.h)
124    
125    # test for POSIX thread library
126    m4_ifdef([m4_include(m4/pthread.m4)],,
127                 [sinclude([m4/pthread.m4])])
128    ACX_PTHREAD
129    LIBS="$PTHREAD_LIBS $LIBS"
130    CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
131    CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
132    CC="$PTHREAD_CC"
133    
134    # check for a bug in NPTL-enabled glibc
135    # (see Gentoo bug report #194076)
136    AC_ARG_ENABLE(nptl-bug-check,
137      [  --disable-nptl-bug-check
138                              Disable check for a bug in certain NPTL-enabled
139                              glibc versions that caused crashs.],
140      [config_check_nptl_bug="$enableval"],
141      [config_check_nptl_bug="yes"]
142    )
143    if test "$config_check_nptl_bug" = "yes"; then
144        m4_ifdef([m4_include(m4/nptl_bug.m4)],,
145                 [sinclude([m4/nptl_bug.m4])])
146        ACX_NPTL_GLIBC_BUG([
147            echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
148            echo "You seem to have a buggy PTHREAD library! LinuxSampler would"
149            echo "probably crash due to this. Please report us the system you are"
150            echo "using and/or file a bug report to the bug tracking system of"
151            echo "your distribution."
152            echo "If you have a NPTL-enabled glibc AND it was compiled for TLS as"
153            echo "well, you can try to circumvent this problem for now by setting"
154            echo "the environment variable LD_ASSUME_KERNEL=\"2.4.1\" , which"
155            echo "should cause this test to pass."
156            echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
157            AC_MSG_ERROR([possibly NPTL glibc bug detected])
158        ])
159    else
160        echo "NPTL glibc bug check disabled"
161    fi
162    
163    # FIXME: this is actually a dependency of libgig, not of LS directly, why
164    # isn't it hidden by libgig?
165    AC_CHECK_HEADERS(uuid/uuid.h)
166    AC_SEARCH_LIBS(uuid_generate, uuid)
167    
168    
169    
170    ###########################################################################
171  # Checks for available audio and MIDI systems / drivers  # Checks for available audio and MIDI systems / drivers
172  # (we throw an error if there's not at least one system for audio output and MIDI input available)  # (we throw an error if there's not at least one system for audio output and MIDI input available)
173    
174  have_midi_input_driver="false"  have_midi_input_driver="false"
175  have_audio_output_driver="false"  have_audio_output_driver="false"
176    
177  AC_CHECK_HEADER(alsa/asoundlib.h,  # ALSA
178      AC_CHECK_LIB(asound, main,  AC_ARG_ENABLE(alsa-driver,
179                               have_alsa=1    [  --disable-alsa-driver
180                               ,                            Disable support for the Advanced Linux Sound
181                               have_alsa=0                            Architecture (ALSA).],
182                  )    [config_alsa_driver="$enableval"],
183                  ,    [config_alsa_driver="yes"]
184                  have_alsa=0  )
185  )  have_alsa=0
186  if test "$have_alsa" = "1"; then  if test "$config_alsa_driver" = "yes"; then
187      have_midi_input_driver="true"      AC_CHECK_HEADER(alsa/asoundlib.h,
188      have_audio_output_driver="true";          AC_CHECK_LIB(asound, main,
189                                     have_alsa=1
190                                     ,
191                                     have_alsa=0
192                        )
193                        ,
194                        have_alsa=0
195        )
196        if test "$have_alsa" = "1"; then
197            have_midi_input_driver="true"
198            have_audio_output_driver="true";
199        fi
200    
201        echo -n "checking Alsa version... "
202        AC_LANG_SAVE
203        AC_LANG_C
204        AC_TRY_RUN([
205            #include <alsa/asoundlib.h>
206            void main(void) {
207                /* ensure backward compatibility */
208                #if !defined(SND_LIB_MAJOR) && defined(SOUNDLIB_VERSION_MAJOR)
209                #define SND_LIB_MAJOR SOUNDLIB_VERSION_MAJOR
210                #endif
211                exit(SND_LIB_MAJOR);
212            }
213        ],
214        alsa_major=0,
215        alsa_major=$?,
216        alsa_major=0
217        )
218        AC_TRY_RUN([
219            #include <alsa/asoundlib.h>
220            void main(void) {
221                /* ensure backward compatibility */
222                #if !defined(SND_LIB_MINOR) && defined(SOUNDLIB_VERSION_MINOR)
223                #define SND_LIB_MINOR SOUNDLIB_VERSION_MINOR
224                #endif
225                exit(SND_LIB_MINOR);
226            }
227        ],
228        alsa_minor=0,
229        alsa_minor=$?,
230        alsa_minor=0
231        )
232        AC_TRY_RUN([
233            #include <alsa/asoundlib.h>
234            void main(void) {
235                /* ensure backward compatibility */
236                #if !defined(SND_LIB_SUBMINOR) && defined(SOUNDLIB_VERSION_SUBMINOR)
237                #define SND_LIB_SUBMINOR SOUNDLIB_VERSION_SUBMINOR
238                #endif
239                exit(SND_LIB_SUBMINOR);
240            }
241        ],
242        alsa_subminor=0,
243        alsa_subminor=$?,
244        alsa_subminor=0
245        )
246        AC_LANG_RESTORE
247        echo "$alsa_major.$alsa_minor.$alsa_subminor";
248        AC_DEFINE_UNQUOTED(ALSA_MAJOR,$alsa_major,[Define to the major version number of your Alsa installation.])
249        AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])
250        AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])
251    else
252        echo "ALSA support disabled by configure script parameter"
253  fi  fi
254  AM_CONDITIONAL(HAVE_ALSA, test $have_alsa = "1")  AM_CONDITIONAL(HAVE_ALSA, test $have_alsa = "1")
255  AC_DEFINE_UNQUOTED(HAVE_ALSA,$have_alsa,[Define to 1 if you have ALSA installed.])  AC_DEFINE_UNQUOTED(HAVE_ALSA,$have_alsa,[Define to 1 if you have ALSA installed.])
256    config_have_alsa="no"
257    if test $have_alsa = "1"; then
258        config_have_alsa="yes"
259    fi
260    
261    # JACK
262    AC_ARG_ENABLE(jack-driver,
263      [  --disable-jack-driver
264                              Disable support for the Jack Audio Connection Kit
265                              (JACK).],
266      [config_jack_driver="$enableval"],
267      [config_jack_driver="yes"]
268    )
269    have_jack=0
270    if test "$config_jack_driver" = "yes"; then
271        PKG_CHECK_MODULES(JACK, jack, have_jack=1, have_jack=0)
272        if test $have_jack = "1"; then
273            AC_SUBST(JACK_LIBS)
274            AC_SUBST(JACK_CFLAGS)
275            linuxsampler_save_LIBS=$LIBS
276            LIBS="$JACK_LIBS $LIBS"
277            AC_CHECK_FUNCS(jack_client_name_size jack_client_open)
278            LIBS=$linuxsampler_save_LIBS
279            have_audio_output_driver="true";
280        fi
281    else
282        echo "JACK support disabled by configure script parameter"
283    fi
284    AM_CONDITIONAL(HAVE_JACK, test $have_jack = "1")
285    AC_DEFINE_UNQUOTED(HAVE_JACK,$have_jack,[Define to 1 if you have JACK installed.])
286    config_have_jack="no"
287    if test $have_jack = "1"; then
288        config_have_jack="yes"
289    fi
290    
291    # JACK MIDI
292    have_jack_midi=0
293    if test $have_jack = "1"; then
294        linuxsampler_save_CFLAGS=$CFLAGS
295        linuxsampler_save_LIBS=$LIBS
296        CFLAGS="$JACK_CFLAGS $CFLAGS"
297        LIBS="$JACK_LIBS $LIBS"
298        AC_CHECK_HEADER(jack/midiport.h, have_jack_midi=1, have_jack_midi=0)
299        if test $have_jack_midi = "1"; then
300            AC_CHECK_FUNCS(jack_midi_get_event_count)
301            AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <jack/midiport.h>]], [[
302                jack_midi_clear_buffer(0, 0);
303            ]])], [AC_DEFINE(JACK_MIDI_FUNCS_NEED_NFRAMES, 1,
304                      [Define to 1 if you have the old jack midi functions that need an nframes argument.])])
305            have_midi_input_driver="true"
306        fi
307        CFLAGS=$linuxsampler_save_CFLAGS
308        LIBS=$linuxsampler_save_LIBS
309    fi
310    AM_CONDITIONAL(HAVE_JACK_MIDI, test $have_jack_midi = "1")
311    AC_DEFINE_UNQUOTED(HAVE_JACK_MIDI, $have_jack_midi,
312                       [Define to 1 if you have JACK with MIDI support installed.])
313    config_have_jack_midi="no"
314    if test $have_jack_midi = "1"; then
315        config_have_jack_midi="yes"
316    fi
317    
318  echo -n "checking Alsa version... "  # ARTS
319  AC_LANG_SAVE  AC_ARG_ENABLE(arts-driver,
320  AC_LANG_C    [  --disable-arts-driver
321  AC_TRY_RUN([                            Disable support for the Analogue Realtime System
322  #include <alsa/asoundlib.h>                            (aRts).],
323  void main(void) {    [config_arts_driver="$enableval"],
324  /* ensure backward compatibility */    [config_arts_driver="yes"]
 #if !defined(SND_LIB_MAJOR) && defined(SOUNDLIB_VERSION_MAJOR)  
 #define SND_LIB_MAJOR SOUNDLIB_VERSION_MAJOR  
 #endif  
 exit(SND_LIB_MAJOR);  
 }  
 ],  
 alsa_major=0,  
 alsa_major=$?,  
 alsa_major=0  
325  )  )
326  AC_TRY_RUN([  have_arts=0
327  #include <alsa/asoundlib.h>  if test "$config_arts_driver" = "yes"; then
328  void main(void) {      m4_ifdef([m4_include(m4/arts.m4)],,
329  /* ensure backward compatibility */               [sinclude([m4/arts.m4])])
330  #if !defined(SND_LIB_MINOR) && defined(SOUNDLIB_VERSION_MINOR)      AM_PATH_ARTS(0.9.5, have_arts=1, have_arts=0)
331  #define SND_LIB_MINOR SOUNDLIB_VERSION_MINOR      if test "$have_arts" = "1"; then
332  #endif          have_audio_output_driver="true"
333  exit(SND_LIB_MINOR);      fi
334  }  else
335  ],      echo "ARTS support disabled by configure script parameter"
336  alsa_minor=0,  fi
337  alsa_minor=$?,  AM_CONDITIONAL(HAVE_ARTS, test "$have_arts" = "1")
338  alsa_minor=0  AC_DEFINE_UNQUOTED(HAVE_ARTS,$have_arts,[Define to 1 if you have aRts installed.])
339    config_have_arts="no"
340    if test $have_arts = "1"; then
341        config_have_arts="yes"
342    fi
343    
344    # ASIO AUDIO (Win32)
345    AC_ARG_ENABLE(asiosdk-dir,
346      [  --enable-asiosdk-dir
347                              Directory where the ASIO SDK is located, this automatically
348                              enables the compilation of the ASIO audio output driver.],
349      [config_asiosdk_dir="${enableval}"],
350      [config_asiosdk_dir="."]
351  )  )
352  AC_TRY_RUN([  AC_SUBST(config_asiosdk_dir)
353  #include <alsa/asoundlib.h>  
354  void main(void) {  AC_ARG_ENABLE(asio-driver,
355  /* ensure backward compatibility */    [  --disable-asio-driver
356  #if !defined(SND_LIB_SUBMINOR) && defined(SOUNDLIB_VERSION_SUBMINOR)                            Disable support for the Windows ASIO driver.],
357  #define SND_LIB_SUBMINOR SOUNDLIB_VERSION_SUBMINOR    [config_asio_driver="$enableval"],
358  #endif    [config_asio_driver="yes"]
 exit(SND_LIB_SUBMINOR);  
 }  
 ],  
 alsa_subminor=0,  
 alsa_subminor=$?,  
 alsa_subminor=0  
359  )  )
360  AC_LANG_RESTORE  have_asio=0
361  echo "$alsa_major.$alsa_minor.$alsa_subminor";  ASIOSDK_BASEDIR=
362  AC_DEFINE_UNQUOTED(ALSA_MAJOR,$alsa_major,[Define to the major version number of your Alsa installation.])  if test "$config_asio_driver" = "yes"; then
363  AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])      asiosdk_headerfile=$config_asiosdk_dir/ASIOSDK2/common/asio.h
364  AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])      echo -n "checking for ASIO headerfile: $asiosdk_headerfile ...."
365        if test -e $asiosdk_headerfile ; then
366            echo yes
367            have_asio=1
368            ASIOSDK_BASEDIR="$config_asiosdk_dir"
369        else
370            echo no
371            have_asio=0
372        fi
373        if test "$have_asio" = "1"; then
374            have_audio_output_driver="true"
375        fi
376    else
377        echo "Windows ASIO support disabled by configure script parameter"
378    fi
379    AC_SUBST(ASIOSDK_BASEDIR)
380    AM_CONDITIONAL(HAVE_ASIO, test $have_asio = "1")
381    AC_DEFINE_UNQUOTED(HAVE_ASIO,$have_asio,[Define to 1 if you have ASIO installed.])
382    config_have_asio="no"
383    if test $have_asio = "1"; then
384        config_have_asio="yes"
385    fi
386    
387    # MidiShare (Linux, OS X, Windows)
388    AC_ARG_ENABLE(midishare-driver,
389      [  --disable-midishare-driver
390                              Disable support for the MidiShare system.],
391      [config_midishare_driver="$enableval"],
392      [config_midishare_driver="yes"]
393    )
394    have_midishare=0
395    if test "$config_midishare_driver" = "yes"; then
396        AC_CHECK_HEADER(MidiShare.h,
397            AC_CHECK_LIB(MidiShare, MidiCountEvs,
398                                    have_midishare=1,
399                                    have_midishare=0
400                        )
401                        ,
402                        have_midishare=0
403        )
404        if test "$have_midishare" = "1"; then
405            have_midi_input_driver="true"
406        fi
407    else
408        echo "MidiShare support disabled by configure script parameter"
409    fi
410    AM_CONDITIONAL(HAVE_MIDISHARE, test $have_midishare = "1")
411    AC_DEFINE_UNQUOTED(HAVE_MIDISHARE,$have_midishare,[Define to 1 if you have MidiShare installed.])
412    config_have_midishare="no"
413    if test $have_midishare = "1"; then
414        config_have_midishare="yes"
415    fi
416    
417  # JACK  # CoreMIDI (OS X)
418  PKG_CHECK_MODULES(JACK, jack, HAVE_JACK=true, HAVE_JACK=false)  AC_ARG_ENABLE(coremidi-driver,
419  AC_SUBST(JACK_LIBS)    [  --disable-coremidi-driver
420  AC_SUBST(JACK_CFLAGS)                            Disable support for the Apple CoreMIDI system.],
421  if test $HAVE_JACK = false; then    [config_coremidi_driver="$enableval"],
422      HAVE_JACK=0;    [config_coremidi_driver="yes"]
423  else  )
424      HAVE_JACK=1  have_coremidi=0
425      have_audio_output_driver="true";  if test "$config_coremidi_driver" = "yes"; then
426      AC_CHECK_LIB(jack, jack_client_name_size, [AC_DEFINE(HAVE_JACK_CLIENT_NAME_SIZE, 1, [Define to 1 if you have the `jack_client_name_size' function.])], , $JACK_LIBS)      AC_CHECK_HEADER(CoreMIDI/CoreMIDI.h,
427            have_coremidi=1,
428            have_coremidi=0
429        )
430        if test "$have_coremidi" = "1"; then
431            have_midi_input_driver="true"
432        fi
433    else
434        echo "CoreMIDI support disabled by configure script parameter"
435    fi
436    AM_CONDITIONAL(HAVE_COREMIDI, test $have_coremidi = "1")
437    AC_DEFINE_UNQUOTED(HAVE_COREMIDI,$have_coremidi,[Define to 1 if you have CoreMIDI installed.])
438    config_have_coremidi="no"
439    if test $have_coremidi = "1"; then
440        config_have_coremidi="yes"
441  fi  fi
 AM_CONDITIONAL(HAVE_JACK, test $HAVE_JACK = 1)  
 AC_DEFINE_UNQUOTED(HAVE_JACK,$HAVE_JACK,[Define to 1 if you have JACK installed.])  
442    
443    # CoreAudio (OS X)
444    AC_ARG_ENABLE(coreaudio-driver,
445      [  --disable-coreaudio-driver
446                              Disable support for the Apple CoreAudio system.],
447      [config_coreaudio_driver="$enableval"],
448      [config_coreaudio_driver="yes"]
449    )
450    have_coreaudio=0
451    if test "$config_coreaudio_driver" = "yes"; then
452        AC_CHECK_HEADER(CoreAudio/CoreAudio.h,
453            have_coreaudio=1,
454            have_coreaudio=0
455        )
456        if test "$have_coreaudio" = "1"; then
457            have_audio_output_driver="true"
458        fi
459    else
460        echo "CoreAudio support disabled by configure script parameter"
461    fi
462    AM_CONDITIONAL(HAVE_COREAUDIO, test $have_coreaudio = "1")
463    AC_DEFINE_UNQUOTED(HAVE_COREAUDIO,$have_coreaudio,[Define to 1 if you have CoreAudio installed.])
464    config_have_coreaudio="no"
465    if test $have_coreaudio = "1"; then
466        config_have_coreaudio="yes"
467    fi
468    
469    # MME MIDI (Win32)
470    AC_ARG_ENABLE(mmemidi-driver,
471      [  --disable-mmemidi-driver
472                              Disable support for the Windows MME MIDI system.],
473      [config_mmemidi_driver="$enableval"],
474      [config_mmemidi_driver="yes"]
475    )
476    have_mmemidi=0
477    if test "$config_mmemidi_driver" = "yes"; then
478        AC_CHECK_HEADERS(mmsystem.h,
479            have_mmemidi=1,
480            have_mmemidi=0
481        )
482        if test "$have_mmemidi" = "1"; then
483            have_midi_input_driver="true"
484        fi
485    else
486        echo "MME MIDI support disabled by configure script parameter"
487    fi
488    AM_CONDITIONAL(HAVE_MME_MIDI, test $have_mmemidi = "1")
489    AC_DEFINE_UNQUOTED(HAVE_MME_MIDI,$have_mmemidi,[Define to 1 if you have MME MIDI installed.])
490    config_have_mme="no"
491    if test $have_mmemidi = "1"; then
492        config_have_mme="yes"
493    fi
494    
495    # DSSI
496    AC_CHECK_HEADERS(dssi.h,
497            config_have_dssi="yes",
498            config_have_dssi="no")
499    AM_CONDITIONAL(HAVE_DSSI, test $config_have_dssi = "yes")
500    
501    # LV2
502    PKG_CHECK_MODULES(LV2, lv2core, config_have_lv2="yes", config_have_lv2="no")
503    if test $config_have_lv2 = "no"; then
504        AC_CHECK_HEADER(lv2.h, config_have_lv2="yes", config_have_lv2="no")
505    fi
506    AM_CONDITIONAL(HAVE_LV2, test $config_have_lv2 = "yes")
507    
508    # VST
509    AC_ARG_ENABLE(vstsdk-dir,
510      [  --enable-vstsdk-dir
511                              Directory where the VST SDK is located.
512                              This automatically enables the compilation
513                              of the VST plugin.],
514      [VSTSDK_DIR="${enableval}"],
515      [VSTSDK_DIR=]
516    )
517    AC_SUBST(VSTSDK_DIR)
518    AM_CONDITIONAL(HAVE_VST, test "x$VSTSDK_DIR" != "x")
519    config_have_vst="no"
520    if test "x$VSTSDK_DIR" != "x"; then
521        config_have_vst="yes"
522    fi
523    
524    # AU
525    AC_CHECK_HEADERS(AudioUnit/AudioUnit.h,
526            config_have_au="yes",
527            config_have_au="no")
528    AM_CONDITIONAL(HAVE_AU, test $config_have_au = "yes")
529    AM_CONDITIONAL(HAVE_AUFLAGS, test "$AUFLAGS" != "")
530    
531    if test $config_have_au = "yes" ; then
532        if test "x$DEVELOPER_EXTRAS_DIR" = "x" ; then
533            if test -d /Developer/Extras ; then
534                DEVELOPER_EXTRAS_DIR=/Developer/Extras
535            else      
536                DEVELOPER_EXTRAS_DIR=/Developer/Examples
537            fi
538        fi
539        AC_SUBST(DEVELOPER_EXTRAS_DIR)
540    fi
541    
542    # have we found at least one MIDI input and one audio output driver ?
543    if test "$have_midi_input_driver" = "false"; then
544        echo "No supported MIDI input system found!"
545        echo "Sorry, LinuxSampler only supports the following MIDI drivers at the moment:"
546        echo "ALSA, JACK, MIDIShare, CoreMIDI, MME."
547        echo "If you think you have one of those available on your system, make sure you"
548        echo "also have the respective development (header) files installed."
549        exit -1;
550    fi
551    if test "$have_audio_output_driver" = "false"; then
552        echo "No supported audio output system found!"
553        echo "Sorry, LinuxSampler only supports ALSA, JACK, ARTS and ASIO as audio output"
554        echo "driver at the moment!"
555        exit -1;
556    fi
557    
558    
559    
560    ###########################################################################
561    # Checks for various DLL libraries
562    
563  # Check presence of libgig  # Check presence of libgig
564  libgig_version="1.0.0"  libgig_version="3.3.0"
565  PKG_CHECK_MODULES(GIG, gig >= $libgig_version, HAVE_GIG=true, HAVE_GIG=false)  PKG_CHECK_MODULES(GIG, gig >= $libgig_version, HAVE_GIG=true, HAVE_GIG=false)
566  if test "$HAVE_GIG" = "false"; then  if test "$HAVE_GIG" = "false"; then
567      echo "Required libgig version not found!"      echo "Required libgig version not found!"
568      echo "You need to have libgig version ${libgig_version} installed!"      echo "You need to have libgig version ${libgig_version} installed!"
569      exit -1;      exit -1;
570    else
571        echo "yes, found libgig $libgig_version"
572  fi  fi
573  AC_SUBST(GIG_CFLAGS)  AC_SUBST(GIG_CFLAGS)
574  AC_SUBST(GIG_LIBS)  AC_SUBST(GIG_LIBS)
575    
576    # SF2 Engine (requires libgig)
577    AC_ARG_ENABLE(sf2-engine,
578      [  --disable-sf2-engine
579                              Disable compilation of the SF2 engine.
580                              You need to have libgig installed.],
581      [config_sf2_engine="$enableval"],
582      [config_sf2_engine="yes"]
583    )
584    HAVE_SF2=0;
585    if test "$config_sf2_engine" = "yes"; then
586        HAVE_SF2=1
587    else
588        echo "SF2 engine disabled by configure script parameter"
589    fi
590    AM_CONDITIONAL(HAVE_SF2, test $HAVE_SF2 = 1)
591    AC_DEFINE_UNQUOTED(HAVE_SF2,$HAVE_SF2,[Define to 1 if you want SF2 engine and have libsf2 installed.])
592    config_have_sf2="no"
593    if test $HAVE_SF2 = "1"; then
594        config_have_sf2="yes"
595    fi
596    
597    # Check presence of libsndfile
598    libsndfile_version="1.0"
599    PKG_CHECK_MODULES(SNDFILE, sndfile >= $libsndfile_version, HAVE_SNDFILE=true, HAVE_SNDFILE=false)
600    if test "$HAVE_SNDFILE" = "false"; then
601        echo "Required libsndfile version not found!"
602        echo "You need to have libsndfile version ${libsndfile_version} installed!"
603        exit -1;
604    else
605        echo "yes, found libsndfile $libsndfile_version"
606    fi
607    AC_SUBST(SNDFILE_CFLAGS)
608    AC_SUBST(SNDFILE_LIBS)
609    
610  # SQLITE3  # Check for Vorbis support in libsndfile
611  PKG_CHECK_MODULES(SQLITE3, sqlite3, HAVE_SQLITE3=true, HAVE_SQLITE3=false)  linuxsampler_save_CFLAGS=$CFLAGS
612  AC_SUBST(SQLITE3_LIBS)  CFLAGS="$SNDFILE_CFLAGS $CFLAGS"
613  AC_SUBST(SQLITE3_CFLAGS)  AC_CHECK_DECLS([SF_FORMAT_VORBIS], [], [] ,[[#include <sndfile.h>]])
614  if test $HAVE_SQLITE3 = false; then  
615      HAVE_SQLITE3=0;  # Check for loop functionality in libsndfile
616    AC_CHECK_MEMBERS([SF_INSTRUMENT.loops],,
617                     [AC_MSG_WARN([Your version of libsndfile does not support
618        reading of loop information. LinuxSampler will not be able to
619        extract loop information from sample files.])],
620                     [#include <sndfile.h>])
621    CFLAGS=$linuxsampler_save_CFLAGS
622    
623    # Instruments DB feature (requires SQLite 3.3)
624    AC_ARG_ENABLE(instruments-db,
625      [  --disable-instruments-db
626                              Disable compilation of the sampler's instruments
627                              database feature. You need to have SQLite 3.3
628                              or younger installed for this feature.],
629      [config_instruments_db="$enableval"],
630      [config_instruments_db="yes"]
631    )
632    HAVE_SQLITE3=0;
633    if test "$config_instruments_db" = "yes"; then
634        # Check presence of sqlite3
635        sqlite_version="3.3"
636        PKG_CHECK_MODULES(SQLITE3, sqlite3 >= $sqlite_version, HAVE_SQLITE3=true, HAVE_SQLITE3=false)
637        AC_SUBST(SQLITE3_LIBS)
638        AC_SUBST(SQLITE3_CFLAGS)
639        if test $HAVE_SQLITE3 = false; then
640            HAVE_SQLITE3=0
641            config_instruments_db="no"
642            echo "*** Required sqlite version not found!"
643            echo "*** You need to have sqlite version ${sqlite_version} or higher"
644            echo "*** for instruments database support to be enabled."
645            echo "*** Support for instruments DB will be disabled!"
646        else
647            HAVE_SQLITE3=1
648        fi
649  else  else
650      HAVE_SQLITE3=1      echo "Instruments DB feature disabled by configure script parameter"
651  fi  fi
652  AM_CONDITIONAL(HAVE_SQLITE3, test $HAVE_SQLITE3 = 1)  AM_CONDITIONAL(HAVE_SQLITE3, test $HAVE_SQLITE3 = 1)
653  AC_DEFINE_UNQUOTED(HAVE_SQLITE3,$HAVE_SQLITE3,[Define to 1 if you have SQLITE3 installed.])  AC_DEFINE_UNQUOTED(HAVE_SQLITE3,$HAVE_SQLITE3,[Define to 1 if you want the instruments DB feature and have SQLITE3 installed.])
654    
655    
656  if test "$have_midi_input_driver" = "false"; then  
657      echo "No supported MIDI input system found!"  ###########################################################################
658      echo "Sorry, LinuxSampler only supports ALSA as MIDI input driver at the moment!"  # Handle Configuration Options
659      exit -1;  
660    # TODO: should we use AC_ARG_VAR(variable, description) instead?
661    
662    AC_ARG_ENABLE(asm,
663      [  --disable-asm
664                              Enable hand-crafted assembly optimizations
665                              (default=on). LinuxSampler provides CPU specific
666                              assembly optimizations. This is currently limited
667                              to just enter a fast (denormal) FPU mode on x86
668                              platforms. There are currently no synthesis core
669                              assembly optimizations anymore since LS 0.4.0],
670      [config_asm="$enableval"],
671      [config_asm="yes"]
672    )
673    if test "$config_asm" = "yes"; then
674      AC_DEFINE_UNQUOTED(CONFIG_ASM, 1, [Define to 1 if you want to enable asm optimizations.])
675  fi  fi
676  if test "$have_audio_output_driver" = "false"; then  
677      echo "No supported audio output system found!"  AC_ARG_ENABLE(dev-mode,
678      echo "Sorry, LinuxSampler only supports ALSA and JACK as audio output driver at the moment!"    [  --enable-dev-mode
679      exit -1;                            Enable development mode (default=off). In that mode
680                              we do some extra sanity checks here and there.
681                              This helps to spot possible problems, but reduces
682                              efficiency a bit],
683      [config_dev_mode="$enableval"],
684      [config_dev_mode="no"]
685    )
686    if test "$config_dev_mode" = "yes"; then
687      AC_DEFINE_UNQUOTED(CONFIG_DEVMODE, 1, [Define to 1 if you want to enable development mode.])
688    fi
689    
690    AC_ARG_ENABLE(debug-level,
691      [  --enable-debug-level
692                              Specify verbosity of console messages (default=1).
693                              The higher the value, the higher will be verbosity.
694                              A value of 0 means no console output at all.
695                              There's not really an upper limit but the usual
696                              level of all messages is currently somewhere less
697                              than 10.],
698      [config_debug_level="${enableval}"],
699      [config_debug_level="1"]
700    )
701    AC_DEFINE_UNQUOTED(CONFIG_DEBUG_LEVEL, $config_debug_level, [Define console verbosity.])
702    
703    AC_ARG_ENABLE(rt-exceptions,
704      [  --enable-rt-exceptions
705                              Enable exceptions in the realtime thread
706                              (default=no). If this is enabled, exceptions will
707                              be thrown on critical errors in the realtime
708                              context as well. Otherwise if disabled
709                              segmentation faults will be forced by the
710                              application on critical errors.],
711      [config_rt_exceptions="$enableval"],
712      [config_rt_exceptions="no"]
713    )
714    if test "$config_rt_exceptions" = "yes"; then
715      AC_DEFINE_UNQUOTED(CONFIG_RT_EXCEPTIONS, 1, [Define to 1 to allow exceptions in the realtime context.])
716    fi
717    
718    AC_ARG_ENABLE(pthread-testcancel,
719      [  --enable-pthread-testcancel
720                              Enable pthread_testcancel() calls and avoid asynchronous
721                              cancel of pthreads (default=no).],
722      [config_pthread_testcancel="$enableval"],
723      [config_pthread_testcancel="no"]
724    )
725    if test "$config_pthread_testcancel" = "yes"; then
726      AC_DEFINE_UNQUOTED(CONFIG_PTHREAD_TESTCANCEL, 1, [Define to 1 to enable pthread_testcancel() calls.])
727    fi
728    
729    AC_ARG_ENABLE(preload-samples,
730      [  --enable-preload-samples
731                              Due to seeking and latency issues with hard drives
732                              we have to cache a small part of samples' head in
733                              RAM (default=32768). The higher this value the
734                              more memory will be occupied for each sample, but
735                              the safer this will be in regards of possible
736                              droputs. A 'good' value depends on the running
737                              system and usage dependant factors.],
738      [config_preload_samples="${enableval}"],
739      [config_preload_samples="32768"]
740    )
741    AC_DEFINE_UNQUOTED(CONFIG_PRELOAD_SAMPLES, $config_preload_samples, [Define amount of sample points to be cached in RAM.])
742    
743    AC_ARG_ENABLE(max-pitch,
744      [  --enable-max-pitch
745                              Specify the maximum allowed pitch value in octaves
746                              (default=4). To lower memory usage you might want
747                              set a smaller value.],
748      [config_max_pitch="${enableval}"],
749      [config_max_pitch="4"]
750    )
751    AC_DEFINE_UNQUOTED(CONFIG_MAX_PITCH, $config_max_pitch, [Define max. allowed pitch.])
752    
753    AC_ARG_ENABLE(max-events,
754      [  --enable-max-events
755                              Specify the maximum allowed amount of events to be
756                              processed per fragment (default=1024).],
757      [config_max_events="${enableval}"],
758      [config_max_events="1024"]
759    )
760    AC_DEFINE_UNQUOTED(CONFIG_MAX_EVENTS_PER_FRAGMENT, $config_max_events, [Define max. allowed events per fragment.])
761    
762    AC_ARG_ENABLE(eg-bottom,
763      [  --enable-eg-bottom
764                              Bottom limit of envelope generators
765                              (default=0.001). Certain kinds of curve types like
766                              exponential curves converge against 0 but never
767                              reach 0. So we have to define a certain low value
768                              after which we should consider all smaller values
769                              to be 'almost zero'. The smaller this value, the
770                              longer will voices survive in EG's release stage
771                              and thus waste voices. If this value is too high
772                              will cause click sounds though.],
773      [config_eg_bottom="${enableval}"],
774      [config_eg_bottom="0.001"]
775    )
776    AC_DEFINE_UNQUOTED(CONFIG_EG_BOTTOM, $config_eg_bottom, [Define bottom limit of envelopes.])
777    
778    AC_ARG_ENABLE(eg-min-release-time,
779      [  --enable-eg-min-release-time
780                              Specify the lowest allowed release time in seconds
781                              (default=0.0025). This value will also be used to
782                              ramp down voices on voice stealing. This value
783                              should always be less than the period time of the
784                              used audio driver, as in case of voice stealing
785                              the killed voice needs to be completely ramped
786                              down in the same fragment.],
787      [config_eg_min_release_time="${enableval}"],
788      [config_eg_min_release_time="0.0025"]
789    )
790    AC_DEFINE_UNQUOTED(CONFIG_EG_MIN_RELEASE_TIME, $config_eg_min_release_time, [Define min. release time.])
791    
792    AC_ARG_ENABLE(refill-streams,
793      [  --enable-refill-streams
794                              Number of streams that should be refilled in each
795                              disk thread cycle (default=4).],
796      [config_refill_streams="${enableval}"],
797      [config_refill_streams="4"]
798    )
799    AC_DEFINE_UNQUOTED(CONFIG_REFILL_STREAMS_PER_RUN, $config_refill_streams, [Define amount of streams to be refilled per cycle.])
800    
801    AC_ARG_ENABLE(stream-min-refill,
802      [  --enable-stream-min-refill
803                              Minimum refill size for disk streams (default=1024).
804                              The disk thread will go to sleep for a while if no
805                              stream had to be refilled more than this value in
806                              a disk thread cycle.],
807      [config_stream_min_refill="${enableval}"],
808      [config_stream_min_refill="1024"]
809    )
810    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MIN_REFILL_SIZE, $config_stream_min_refill, [Define min. stream refill size.])
811    
812    AC_ARG_ENABLE(stream-max-refill,
813      [  --enable-stream-max-refill
814                              Maximum refill size for disk streams
815                              (default=65536). The disk thread will refill
816                              each stream only by a size of this value per
817                              disk thread cycle.],
818      [config_stream_max_refill="${enableval}"],
819      [config_stream_max_refill="65536"]
820    )
821    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MAX_REFILL_SIZE, $config_stream_max_refill, [Define max. stream refill size.])
822    
823    AC_ARG_ENABLE(stream-size,
824      [  --enable-stream-size
825                              Size of each stream's ring buffer in sample points
826                              (default=262144).],
827      [config_stream_size="${enableval}"],
828      [config_stream_size="262144"]
829    )
830    AC_DEFINE_UNQUOTED(CONFIG_STREAM_BUFFER_SIZE, $config_stream_size, [Define each stream's ring buffer size.])
831    
832    AC_ARG_ENABLE(max-streams,
833      [  --enable-max-streams
834                              Initial maximum amount of disk streams
835                              (default=90). This value can be changed at
836                              runtime. It should always be higher than the
837                              maximum amount of voices.],
838      [config_max_streams="${enableval}"],
839      [config_max_streams="90"]
840    )
841    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_MAX_STREAMS, $config_max_streams, [Define initial max. streams.])
842    
843    AC_ARG_ENABLE(max-voices,
844      [  --enable-max-voices
845                              Initial maximum amount of voices (default=64).
846                              This value can be changed at runtime. It should
847                              always be lower than the maximum amount of disk
848                              streams.],
849      [config_max_voices="${enableval}"],
850      [config_max_voices="64"]
851    )
852    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_MAX_VOICES, $config_max_voices, [Define initial max. voices.])
853    
854    AC_ARG_ENABLE(subfragment-size,
855      [  --enable-subfragment-size
856                              Every audio fragment will be splitted into
857                              subfragments. Where each subfragment renders
858                              audio with constant synthesis parameters. This is
859                              done for efficiency reasons. This parameter
860                              defines the default size of a subfragment in
861                              sample points. A large value means less CPU time
862                              whereas a low value means better audio quality
863                              (default=32).],
864      [config_subfragment_size="${enableval}"],
865      [config_subfragment_size="32"]
866    )
867    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_SUBFRAGMENT_SIZE, $config_subfragment_size, [Define default subfragment size (in sample points).])
868    
869    AC_ARG_ENABLE(global-attenuation-default,
870      [  --enable-global-attenuation-default
871                              To prevent clipping all samples will be lowered
872                              in amplitude by this given default factor (can
873                              be overridden at runtime).
874                              (default=0.35)],
875      [config_global_attenuation_default="${enableval}"],
876      [config_global_attenuation_default="0.35"]
877    )
878    AC_DEFINE_UNQUOTED(CONFIG_GLOBAL_ATTENUATION_DEFAULT, $config_global_attenuation_default, [Define default global volume attenuation (as floating point factor).])
879    
880    AC_ARG_ENABLE(voice-steal-algo,
881      [  --enable-voice-steal-algo
882                              Voice stealing algorithm to be used. Currently
883                              available options:
884                                none:
885                                  Disable voice stealing completely.
886                                oldestvoiceonkey (default):
887                                  Try to kill a voice on the same key first,
888                                  if no success, proceed with the oldest key.
889                                oldestkey:
890                                  Try to kill a voice from the oldest active
891                                  key.],
892      [ if test ! "(" "${enableval}" = "none" \
893                  -o "${enableval}" = "oldestvoiceonkey" \
894                  -o "${enableval}" = "oldestkey" ")" ; then
895          AC_MSG_ERROR([Unknown voice stealing algorithm for parameter --enable-voice-steal-algo])
896        else
897          config_voice_steal_algo="${enableval}"
898        fi
899      ],
900      [config_voice_steal_algo="oldestvoiceonkey"]
901    )
902    AC_DEFINE_UNQUOTED(CONFIG_VOICE_STEAL_ALGO, voice_steal_algo_${config_voice_steal_algo}, [Define voice stealing algorithm to be used.])
903    
904    AC_ARG_ENABLE(sysex-buffer-size,
905      [  --enable-sysex-buffer-size
906                              System Exclusive Message buffer size in kB
907                              (default=2048).],
908      [config_sysex_buffer_size="${enableval}"],
909      [config_sysex_buffer_size="2048"]
910    )
911    AC_DEFINE_UNQUOTED(CONFIG_SYSEX_BUFFER_SIZE, $config_sysex_buffer_size, [Define SysEx buffer size.])
912    
913    AC_ARG_ENABLE(force-filter,
914      [  --enable-force-filter
915                              If enabled will force filter to be used even if
916                              no usage was define in instrument patch files.
917                              (default=no).],
918      [config_force_filter="$enableval"],
919      [config_force_filter="no"]
920    )
921    if test "$config_force_filter" = "yes"; then
922      AC_DEFINE_UNQUOTED(CONFIG_FORCE_FILTER, 1, [Define to 1 to force filter usage.])
923  fi  fi
924    
925    AC_ARG_ENABLE(filter-cutoff-min,
926      [  --enable-filter-cutoff-min
927                              Minimum filter cutoff frequency in Hz
928                              (default=100.0).],
929      [config_filter_cutoff_min="${enableval}"],
930      [config_filter_cutoff_min="100.0"]
931    )
932    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MIN, ${config_filter_cutoff_min}f, [Define min. filter cutoff frequency.])
933    
934    AC_ARG_ENABLE(filter-cutoff-max,
935      [  --enable-filter-cutoff-max
936                              Maximum filter cutoff frequency in Hz
937                              (default=10000.0).],
938      [config_filter_cutoff_max="${enableval}"],
939      [config_filter_cutoff_max="10000.0"]
940    )
941    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MAX, ${config_filter_cutoff_max}f, [Define max. filter cutoff frequency.])
942    
943    AC_ARG_ENABLE(override-cutoff-ctrl,
944      [  --enable-override-cutoff-ctrl
945                              Override filter cutoff MIDI controller (default=no).
946                              Note: you have to define the MIDI controller number
947                              here, it's not a boolean parameter type! If this
948                              option is used, controller number given by
949                              instrument patch will be ignored and instead this
950                              supplied value will be used.],
951      [config_override_cutoff_ctrl="${enableval}"],
952      [config_override_cutoff_ctrl="no"]
953    )
954    if test ! "$config_override_cutoff_ctrl" = "no"; then
955      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_CUTOFF_CTRL, $config_override_cutoff_ctrl, [Define to a MIDI controller number to override cutoff control.])
956    fi
957    
958    AC_ARG_ENABLE(override-resonance-ctrl,
959      [  --enable-override-resonance-ctrl
960                              Override filter resonance MIDI controller
961                              (default=no). Note: you have to define the MIDI
962                              controller number here, it's not a boolean
963                              parameter type! If this option is used, controller
964                              number given by instrument patch will be ignored
965                              and instead this supplied value will be used.],
966      [config_override_resonance_ctrl="${enableval}"],
967      [config_override_resonance_ctrl="no"]
968    )
969    if test ! "$config_override_resonance_ctrl" = "no"; then
970      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_RESONANCE_CTRL, $config_override_resonance_ctrl, [Define to a MIDI controller number to override resonance control.])
971    fi
972    
973    AC_ARG_ENABLE(override-filter-type,
974      [  --enable-override-filter-type
975                              Override filter type (default=no). Options:
976                              hp: for highpass
977                              bp: for bandpass
978                              br: for bandreject
979                              lp: for lowpass
980                              lpt: for lowpass turbo],
981      [ if   test "${enableval}" = "hp" ; then
982           config_override_filter_type="::gig::vcf_type_highpass"
983        elif test "${enableval}" = "bp" ; then
984           config_override_filter_type="::gig::vcf_type_bandpass"
985        elif test "${enableval}" = "br" ; then
986           config_override_filter_type="::gig::vcf_type_bandreject"
987        elif test "${enableval}" = "lp" ; then
988           config_override_filter_type="::gig::vcf_type_lowpass"
989        elif test "${enableval}" = "lpt" ; then
990           config_override_filter_type="::gig::vcf_type_lowpassturbo"
991        elif test ! "${enableval}" = "no"; then
992           AC_MSG_ERROR([Unknown filter type for parameter --enable-override-filter-type])
993        fi
994      ],
995      [config_override_filter_type="no"]
996    )
997    if test ! "$config_override_filter_type" = "no"; then
998      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_FILTER_TYPE, $config_override_filter_type, [Define to a filter type to always force that filter type.])
999    fi
1000    
1001    AC_ARG_ENABLE(gs-checksum,
1002      [  --enable-gs-checksum
1003                              Enable Roland General Synth SysEx checksum check
1004                              (default=no). If this is enabled, all GS SysEx
1005                              messages which do not provide a correct checksum
1006                              will be ignored. This is disabled by default as
1007                              not all devices honor GS checksums.],
1008      [config_assert_gs_sysex_checksum="$enableval"],
1009      [config_assert_gs_sysex_checksum="no"]
1010    )
1011    if test "config_assert_gs_sysex_checksum" = "yes"; then
1012      AC_DEFINE_UNQUOTED(CONFIG_ASSERT_GS_SYSEX_CHECKSUM, 1, [Define to 1 if you want to enable GS SysEx check.])
1013    fi
1014    
1015    AC_ARG_ENABLE(portamento-time-min,
1016      [  --enable-portamento-time-min
1017                              Minimum Portamento time in seconds
1018                              (default=0.1).],
1019      [config_portamento_time_min="${enableval}"],
1020      [config_portamento_time_min="0.1"]
1021    )
1022    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MIN, $config_portamento_time_min, [Define min. portamento time.])
1023    
1024    AC_ARG_ENABLE(portamento-time-max,
1025      [  --enable-portamento-time-max
1026                              Maximum Portamento time in seconds
1027                              (default=32).],
1028      [config_portamento_time_max="${enableval}"],
1029      [config_portamento_time_max="32"]
1030    )
1031    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MAX, $config_portamento_time_max, [Define max. portamento time.])
1032    
1033    AC_ARG_ENABLE(portamento-time-default,
1034      [  --enable-portamento-time-default
1035                              Default Portamento time in seconds
1036                              (default=1).],
1037      [config_portamento_time_default="${enableval}"],
1038      [config_portamento_time_default="1"]
1039    )
1040    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_DEFAULT, $config_portamento_time_default, [Define default portamento time.])
1041    
1042    AC_ARG_ENABLE(signed-triang-algo,
1043      [  --enable-signed-triang-algo
1044                              Signed triangular wave algorithm to be used (e.g. for LFOs).
1045                              Currently available options:
1046                                intmath:
1047                                  Uses integer math without any branch will then be
1048                                  converted to floating point value for each sample point.
1049                                  This int->float conversion might hurt on some systems.
1050                                intmathabs:
1051                                  Similar to intmath but uses abs() function.
1052                                  Depending on compiler and platrofm this could
1053                                  perform better than integer math as it avoids
1054                                  an extra integer multiply instruction.
1055                                diharmonic:
1056                                  The triangular wave will be approximated by adding two
1057                                  sinusoidials. This solution might especially hurt on
1058                                  systems with weak floating point unit.
1059                                benchmark (default):
1060                                  This is not an algorithm. Use this option if the
1061                                  appropriate algorithm should be automatically
1062                                  chosen by the configure script by performing a
1063                                  benchmark between the algorithms mentioned above.
1064                                  This will NOT work for cross compilation!],
1065      [ if test ! "(" "${enableval}" = "intmath" \
1066                  -o "${enableval}" = "intmathabs" \
1067                  -o "${enableval}" = "diharmonic" ")" ; then
1068          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-signed-triang-algo])
1069        else
1070          config_signed_triang_algo="${enableval}"
1071        fi
1072      ],
1073      [config_signed_triang_algo="benchmark"]
1074    )
1075    
1076    AC_ARG_ENABLE(unsigned-triang-algo,
1077      [  --enable-unsigned-triang-algo
1078                              Unsigned triangular wave algorithm to be used (e.g. for LFOs).
1079                              Currently available options:
1080                                intmath:
1081                                  Uses integer math without any branch will then be
1082                                  converted to floating point value for each sample point.
1083                                  This int->float conversion might hurt on some systems.
1084                                intmathabs:
1085                                  Similar to intmath but uses abs() function.
1086                                  Depending on compiler and platrofm this could
1087                                  perform better than integer math as it avoids
1088                                  an extra integer multiply instruction.
1089                                diharmonic:
1090                                  The triangular wave will be approximated by adding two
1091                                  sinusoidials. This solution might especially hurt on
1092                                  systems with weak floating point unit.
1093                                benchmark (default):
1094                                  This is not an algorithm. Use this option if the
1095                                  appropriate algorithm should be automatically
1096                                  chosen by the configure script by performing a
1097                                  benchmark between the algorithms mentioned above.
1098                                  This will NOT work for cross compilation!],
1099      [ if test ! "(" "${enableval}" = "intmath" \
1100                  -o "${enableval}" = "intmathabs" \
1101                  -o "${enableval}" = "diharmonic" ")" ; then
1102          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-unsigned-triang-algo])
1103        else
1104          config_unsigned_triang_algo="${enableval}"
1105        fi
1106      ],
1107      [config_unsigned_triang_algo="benchmark"]
1108    )
1109    
1110    AC_ARG_ENABLE(process-muted-channels,
1111      [  --enable-process-muted-channels
1112                              Enable processing of muted channels (default=no).
1113                              In that mode all MIDI events in the muted channels
1114                              will be processed. This will provide information
1115                              about the active voices in the muted channels and
1116                              will not discard notes, triggered in mute mode,
1117                              when the channel is unmuted. But also will reduce
1118                              the efficiency.],
1119      [config_process_muted_channels="$enableval"],
1120      [config_process_muted_channels="no"]
1121    )
1122    if test "$config_process_muted_channels" = "yes"; then
1123      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_MUTED_CHANNELS, 1, [Define to 1 if you want to enable processing of muted channels.])
1124    fi
1125    
1126    AC_ARG_ENABLE(process-all-notes-off,
1127      [  --disable-process-all-notes-off
1128                              Disable interpretation of All-Notes-Off MIDI
1129                              messages (default=on). By default LS will release
1130                              all voices whenever it receives an All-Notes-Off
1131                              MIDI message. You can disable this behavior, so
1132                              that LS simply ignores such messages.],
1133      [config_process_all_notes_off="$enableval"],
1134      [config_process_all_notes_off="yes"]
1135    )
1136    if test "$config_process_all_notes_off" = "yes"; then
1137      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_ALL_NOTES_OFF, 1, [Define to 1 if you want to enable processing of All-Notes-Off MIDI messages.])
1138    fi
1139    
1140    AC_ARG_ENABLE(interpolate-volume,
1141      [  --disable-interpolate-volume
1142                              Disable interpolation of volume modulation
1143                              (default=on). With this enabled, the volume changes
1144                              generated by for example the envelope generator
1145                              will be smoother, minimizing the risk for audio
1146                              clicks. Disable it to reduce CPU usage.],
1147      [config_interpolate_volume="$enableval"],
1148      [config_interpolate_volume="yes"]
1149    )
1150    if test "$config_interpolate_volume" = "yes"; then
1151      AC_DEFINE_UNQUOTED(CONFIG_INTERPOLATE_VOLUME, 1, [Define to 1 if you want to enable interpolation of volume modulation.])
1152    fi
1153    
1154    AC_ARG_ENABLE(master-volume-sysex-by-port,
1155      [  --enable-master-volume-sysex-by-port
1156                              Whether global volume sysex message should be
1157                              applied globally to the whole sampler or only to
1158                              the sampler channels connected to the same MIDI
1159                              input port on which the sysex message arrived on.
1160                              By default global volume sysex messages apply
1161                              globally to the whole sampler, since many MIDI
1162                              devices behave that way.],
1163      [config_master_volume_sysex_by_port="$enableval"],
1164      [config_master_volume_sysex_by_port="no"]
1165    )
1166    if test "$config_master_volume_sysex_by_port" = "yes"; then
1167      AC_DEFINE_UNQUOTED(CONFIG_MASTER_VOLUME_SYSEX_BY_PORT, 1, [Define to 1 if you want global volume sysex message only be applied to the respective MIDI port.])
1168    fi
1169    
1170    AC_ARG_ENABLE(plugin-dir,
1171      [  --enable-plugin-dir
1172                              Directory where the sampler shall look for potential plugins,
1173                              that is 3rd party shared libraries that should be loaded by
1174                              the sampler on startup. By default the sampler will search
1175                              for plugins in the subdirectory "plugins" below its own
1176                              library directory.
1177                              (i.e. /usr/local/lib/linuxsampler/plugins)],
1178      [config_plugin_dir="${enableval}"],
1179      [config_plugin_dir="${libdir}/linuxsampler/plugins"]
1180    )
1181    AC_SUBST(config_plugin_dir)
1182    
1183    AC_ARG_ENABLE(default-instruments-db-location,
1184      [  --enable-default-instruments-db-location
1185                              Only when instruments DB feature is enabled: file name
1186                              which shall be taken as default location of the
1187                              instruments DB file. This location can still be
1188                              overridden at runtime with a command line switch.
1189                              (default: /var/lib/linuxsampler/instruments.db)],
1190      [config_default_instruments_db_file="${enableval}"],
1191      [config_default_instruments_db_file="/var/lib/linuxsampler/instruments.db"]
1192    )
1193    AC_DEFINE_UNQUOTED(
1194        CONFIG_DEFAULT_INSTRUMENTS_DB_LOCATION,
1195        "$config_default_instruments_db_file",
1196        [Only when instruments DB feature is enabled: default location of the DB file.]
1197    )
1198    AC_SUBST(config_default_instruments_db_file)
1199    
1200    
1201    ###########################################################################
1202    # Automatic Benchmarks (to detect the best algorithms for the system)
1203    
1204    AC_LANG_SAVE
1205    
1206    if test "$config_signed_triang_algo" = "benchmark"; then
1207        echo -n "benchmarking for the best (signed) triangular oscillator algorithm... "
1208        AC_LANG_CPLUSPLUS
1209        AC_TRY_RUN([
1210                #define SIGNED 1
1211                #define SILENT 1
1212                #include "${srcdir}/benchmarks/triang.cpp"
1213            ],
1214            triang_signed=0,
1215            triang_signed=$?,
1216            triang_signed=0
1217        )
1218        if test "$triang_signed" = "2"; then
1219            config_signed_triang_algo="intmath"
1220            echo "integer math"
1221        elif test "$triang_signed" = "3"; then
1222            config_signed_triang_algo="diharmonic"
1223            echo "di harmonics"
1224        elif test "$triang_signed" = "5"; then
1225            config_signed_triang_algo="intmathabs"
1226            echo "integer math using abs()"
1227        else
1228            echo "Benchmark of signed triangular wave algorithms failed!"
1229            echo "Maybe you are doing cross compilation? In that case you have to select"
1230            echo "an algorithm manually with './configure --enable-signed-triang-algo=...'"
1231            echo "Call './configure --help' for further information or read configure.in."
1232            exit -1;
1233        fi
1234    else
1235        case "$config_signed_triang_algo" in
1236            intmath)
1237                triang_signed=2 ;;
1238            diharmonic)
1239                triang_signed=3 ;;
1240            intmathabs)
1241                triang_signed=5 ;;
1242        esac
1243    fi
1244    AC_DEFINE_UNQUOTED(CONFIG_SIGNED_TRIANG_ALGO, ${triang_signed}, [Define signed triangular wave algorithm to be used.])
1245    
1246    if test "$config_unsigned_triang_algo" = "benchmark"; then
1247        echo -n "benchmarking for the best (unsigned) triangular oscillator algorithm... "
1248        AC_LANG_CPLUSPLUS
1249        AC_TRY_RUN([
1250                #define SIGNED 0
1251                #define SILENT 1
1252                #include "${srcdir}/benchmarks/triang.cpp"
1253            ],
1254            triang_unsigned=0,
1255            triang_unsigned=$?,
1256            triang_unsigned=0
1257        )
1258        if test "$triang_unsigned" = "2"; then
1259            config_unsigned_triang_algo="intmath"
1260            echo "integer math"
1261        elif test "$triang_unsigned" = "3"; then
1262            config_unsigned_triang_algo="diharmonic"
1263            echo "di harmonics"
1264        elif test "$triang_unsigned" = "5"; then
1265            config_unsigned_triang_algo="intmathabs"
1266            echo "integer math using abs()"
1267        else
1268            echo "Benchmark of unsigned triangular wave algorithms failed!"
1269            echo "Maybe you are doing cross compilation? In that case you have to select"
1270            echo "an algorithm manually with './configure --enable-unsigned-triang-algo=...'"
1271            echo "Call './configure --help' for further information or read configure.in."
1272            exit -1;
1273        fi
1274    else
1275        case "$config_unsigned_triang_algo" in
1276            intmath)
1277                triang_unsigned=2 ;;
1278            diharmonic)
1279                triang_unsigned=3 ;;
1280            intmathabs)
1281                triang_unsigned=5 ;;
1282        esac
1283    fi
1284    AC_DEFINE_UNQUOTED(CONFIG_UNSIGNED_TRIANG_ALGO, ${triang_unsigned}, [Define unsigned triangular wave algorithm to be used.])
1285    
1286    AC_LANG_RESTORE
1287    
1288    
1289    ###########################################################################
1290    # Create Build Files
1291    
1292  AM_CONFIG_HEADER(config.h)  AM_CONFIG_HEADER(config.h)
1293  AM_INIT_AUTOMAKE(linuxsampler, 0.3.0)  AM_INIT_AUTOMAKE(linuxsampler, "$LINUXSAMPLER_RELEASE_MAJOR.$LINUXSAMPLER_RELEASE_MINOR.$LINUXSAMPLER_RELEASE_BUILD")
1294    
1295  AC_LANG_CPLUSPLUS  AC_LANG_CPLUSPLUS
 AC_PROG_CXX  
1296    
1297  # autoconf 2.59/libtool 1.5.12 bug? work-around. Without a check like  # autoconf 2.59/libtool 1.5.12 bug? work-around. Without a check like
1298  # this, the dlfcn.h check in am_prog_libtool may fail.  # this, the dlfcn.h check in am_prog_libtool may fail.
1299  AC_CHECK_HEADER(stdlib.h)  AC_CHECK_HEADER(stdlib.h)
1300    
1301  AM_PROG_LIBTOOL  AC_OUTPUT( \
1302        Makefile \
1303        man/Makefile \
1304        man/linuxsampler.1 \
1305        src/Makefile \
1306        src/db/Makefile \
1307        src/network/Makefile \
1308        src/engines/Makefile \
1309        src/engines/gig/Makefile \
1310        src/engines/sf2/Makefile \
1311        src/engines/sfz/Makefile \
1312        src/engines/common/Makefile \
1313        src/effects/Makefile \
1314        src/common/Makefile \
1315        src/testcases/Makefile \
1316        src/drivers/Makefile \
1317        src/drivers/audio/Makefile \
1318        src/drivers/midi/Makefile \
1319        src/plugins/Makefile \
1320        src/hostplugins/Makefile \
1321        src/hostplugins/dssi/Makefile \
1322        src/hostplugins/lv2/Makefile \
1323        src/hostplugins/vst/Makefile \
1324        src/hostplugins/au/Makefile \
1325        linuxsampler.spec \
1326        debian/Makefile \
1327        Artwork/Makefile \
1328        scripts/Makefile \
1329        osx/Makefile \
1330        osx/linuxsampler.xcodeproj/Makefile \
1331        Documentation/Makefile \
1332        Documentation/Engines/Makefile \
1333        Documentation/Engines/gig/Makefile \
1334        linuxsampler.pc \
1335        Doxyfile \
1336    )
1337    
1338  AC_OUTPUT(Makefile src/Makefile src/network/Makefile src/engines/Makefile src/engines/gig/Makefile src/engines/common/Makefile src/common/Makefile src/lib/Makefile src/lib/fileloader/Makefile src/lib/fileloader/libgig/Makefile src/testcases/Makefile src/drivers/Makefile src/drivers/audio/Makefile src/drivers/midi/Makefile)  # resolve all nested variables in '${config_plugin_dir}'
1339    # (merely for providing a human readable summary below)
1340    while test $config_plugin_dir != `eval echo ${config_plugin_dir}` ; do
1341            config_plugin_dir=`eval echo ${config_plugin_dir}`
1342    done
1343    
1344    
1345    ###########################################################################
1346    # Output All Configuration Options
1347    
1348    echo ""
1349    echo "#####################################################################"
1350    echo "# LinuxSampler Configuration                                        #"
1351    echo "#-------------------------------------------------------------------#"
1352    echo "# Release Version: ${LINUXSAMPLER_RELEASE_MAJOR}.${LINUXSAMPLER_RELEASE_MINOR}.${LINUXSAMPLER_RELEASE_BUILD}"
1353    echo "# LSCP Version: ${LSCP_RELEASE_MAJOR}.${LSCP_RELEASE_MINOR}"
1354    echo "#-------------------------------------------------------------------"
1355    echo "# Assembly Optimizations: ${config_asm}"
1356    echo "# Development Mode: ${config_dev_mode}"
1357    echo "# Debug Level: ${config_debug_level}"
1358    echo "# Use Exceptions in RT Context: ${config_rt_exceptions}"
1359    echo "# Preload Samples: ${config_preload_samples}"
1360    echo "# Maximum Pitch: ${config_max_pitch} (octaves)"
1361    echo "# Maximum Events: ${config_max_events}"
1362    echo "# Envelope Bottom Level: ${config_eg_bottom} (linear)"
1363    echo "# Envelope Minimum Release Time: ${config_eg_min_release_time} s"
1364    echo "# Streams to be refilled per Disk Thread Cycle: ${config_refill_streams}"
1365    echo "# Minimum Stream Refill Size: ${config_stream_min_refill}"
1366    echo "# Maximum Stream Refill Size: ${config_stream_max_refill}"
1367    echo "# Stream Size: ${config_stream_size}"
1368    echo "# Default Maximum Disk Streams: ${config_max_streams}"
1369    echo "# Default Maximum Voices: ${config_max_voices}"
1370    echo "# Default Subfragment Size: ${config_subfragment_size}"
1371    echo "# Default Global Volume Attenuation: ${config_global_attenuation_default}"
1372    echo "# Voice Stealing Algorithm: ${config_voice_steal_algo}"
1373    echo "# Signed Triangular Oscillator Algorithm: ${config_signed_triang_algo}"
1374    echo "# Unsigned Triangular Oscillator Algorithm: ${config_unsigned_triang_algo}"
1375    echo "# SysEx Buffer Size: ${config_sysex_buffer_size} Byte"
1376    echo "# Min. Portamento Time: ${config_portamento_time_min} s"
1377    echo "# Max. Portamento Time: ${config_portamento_time_max} s"
1378    echo "# Default Portamento Time: ${config_portamento_time_default} s"
1379    echo "# Force Filter Usage: ${config_force_filter}"
1380    echo "# Filter Cutoff Minimum: ${config_filter_cutoff_min} Hz"
1381    echo "# Filter Cutoff Maximum: ${config_filter_cutoff_max} Hz"
1382    echo "# Override Filter Cutoff Controller: ${config_override_cutoff_ctrl}"
1383    echo "# Override Filter Resonance Controller: ${config_override_resonance_ctrl}"
1384    echo "# Override Filter Type: ${config_override_filter_type}"
1385    echo "# Assert GS SysEx Checksum: ${config_assert_gs_sysex_checksum}"
1386    echo "# Process Muted Channels: ${config_process_muted_channels}"
1387    echo "# Process All-Notes-Off MIDI message: ${config_process_all_notes_off}"
1388    echo "# Apply global volume SysEx by MIDI port: ${config_master_volume_sysex_by_port}"
1389    echo "# Interpolate Volume: ${config_interpolate_volume}"
1390    echo "# Instruments database support: ${config_instruments_db}"
1391    if test "$config_instruments_db" = "yes"; then
1392    echo "# Instruments DB default location: ${config_default_instruments_db_file}"
1393    fi
1394    echo "# Plugin Path: ${config_plugin_dir}"
1395    echo "#-------------------------------------------------------------------"
1396    echo "# MIDI Input Drivers:"
1397    echo "# ALSA: ${config_have_alsa}, JACK: ${config_have_jack_midi}, CoreMIDI: ${config_have_coremidi}, MME: ${config_have_mme}, MidiShare: ${config_have_midishare}"
1398    echo "#-------------------------------------------------------------------"
1399    echo "# Audio Output Drivers:"
1400    echo "# ALSA: ${config_have_alsa}, JACK: ${config_have_jack}, ARTS: ${config_have_arts}, CoreAudio: ${config_have_coreaudio}, ASIO: ${config_have_asio}"
1401    echo "#-------------------------------------------------------------------"
1402    echo "# Sampler Engines:"
1403    echo "# GIG: yes, SF2: ${config_have_sf2}, SFZ: yes"
1404    echo "#-------------------------------------------------------------------"
1405    echo "# Effect plugin systems for internal effects:"
1406    echo "# LADSPA: yes"
1407    echo "#-------------------------------------------------------------------"
1408    echo "# Building sampler as plugin for following host standards:"
1409    echo "# DSSI: ${config_have_dssi}, LV2: ${config_have_lv2}, VST: ${config_have_vst}, AU: ${config_have_au}"
1410    echo "#-------------------------------------------------------------------#"
1411    echo "# Read './configure --help' or file 'configure.in' for details.     #"
1412    echo "#####################################################################"
1413    echo ""
1414    echo "Good. Now type 'make' to compile, followed by 'make install' as root."
1415    echo ""

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