/[svn]/linuxsampler/trunk/configure.ac
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revision 124 by schoenebeck, Mon Jun 14 19:37:42 2004 UTC revision 2343 by persson, Sun Apr 29 16:14:45 2012 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.svn18
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  echo -n "checking whether x86 architecture... "  ###########################################################################
54    # General Checks
55    
56    AM_CONDITIONAL(CROSS_COMPILING, test $cross_compiling = yes)
57    
58    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 19  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  AC_CHECK_HEADER(alsa/asoundlib.h,  # (only if the user did not provide one)
71      AC_CHECK_LIB(asound, main,  CXX_CPU_SWITCH=
72                               have_alsa="true"  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                               have_alsa="false"      CXX_CPU_SWITCH="-march=$host_cpu"
75                  )    elif test "$target_cpu" = "ppc"; then
76                  ,      CXX_CPU_SWITCH="-arch=$host_cpu"
77                  have_alsa="false"    fi
 )  
 if test "$have_alsa" = "false"; then  
     echo "Alsa not installed!"  
     echo "Sorry, LinuxSampler only supports Alsa sound drivers at the moment!"  
     exit -1;  
78  fi  fi
79    AC_SUBST([CXX_CPU_SWITCH])
80    
81    mac=no
82    linux=no
83    case "$host" in
84        *-*-darwin*)
85            mac=yes
86            ;;
87        *-*-linux*)
88            linux=yes
89            ;;
90    esac
91    AM_CONDITIONAL(LINUX, test "$linux" = yes)
92    AM_CONDITIONAL(MAC, test "$mac" = yes)
93    
94    # check if we're on MS Windows
95    AC_CHECK_HEADERS(
96        mmsystem.h,
97        have_windows=1,
98        have_windows=0,
99        [#include <windef.h>]
100    )
101    AM_CONDITIONAL(HAVE_WINDOWS, test $have_windows = "1")
102    
103  echo -n "checking Alsa version... "  AC_MSG_CHECKING([whether UNIX98 compatible])
104  AC_LANG_SAVE  AC_LANG_SAVE
105  AC_LANG_C  AC_LANG_C
106  AC_TRY_RUN([  AC_TRY_RUN([
107  #include <alsa/asoundlib.h>  #ifndef _GNU_SOURCE
108  void main(void) {  #define _GNU_SOURCE 1
 /* ensure backward compatibility */  
 #if !defined(SND_LIB_MAJOR) && defined(SOUNDLIB_VERSION_MAJOR)  
 #define SND_LIB_MAJOR SOUNDLIB_VERSION_MAJOR  
109  #endif  #endif
110  exit(SND_LIB_MAJOR);  #include <features.h>
 }  
 ],  
 alsa_major=0,  
 alsa_major=$?,  
 alsa_major=0  
 )  
 AC_TRY_RUN([  
 #include <alsa/asoundlib.h>  
 void main(void) {  
 /* ensure backward compatibility */  
 #if !defined(SND_LIB_MINOR) && defined(SOUNDLIB_VERSION_MINOR)  
 #define SND_LIB_MINOR SOUNDLIB_VERSION_MINOR  
 #endif  
 exit(SND_LIB_MINOR);  
 }  
 ],  
 alsa_minor=0,  
 alsa_minor=$?,  
 alsa_minor=0  
 )  
 AC_TRY_RUN([  
 #include <alsa/asoundlib.h>  
111  void main(void) {  void main(void) {
112  /* ensure backward compatibility */  #if _XOPEN_SOURCE >= 500
113  #if !defined(SND_LIB_SUBMINOR) && defined(SOUNDLIB_VERSION_SUBMINOR)  exit(0); /* UNIX98 compatible */
114  #define SND_LIB_SUBMINOR SOUNDLIB_VERSION_SUBMINOR  #else
115    exit(-1); /* not UNIX98 compatible */
116  #endif  #endif
 exit(SND_LIB_SUBMINOR);  
117  }  }
118  ],  ],
119  alsa_subminor=0,  have_unix98="yes",
120  alsa_subminor=$?,  have_unix98="no",
121  alsa_subminor=0  have_unix98="no"
122  )  )
123  AC_LANG_RESTORE  AC_LANG_RESTORE
124  echo "$alsa_major.$alsa_minor.$alsa_subminor";  AC_MSG_RESULT([$have_unix98])
125  AC_DEFINE_UNQUOTED(ALSA_MAJOR,$alsa_major,[Define to the major version number of your Alsa installation.])  if test "$have_unix98" = "no" -a "have_windows" = "0"; then
126  AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])      if test "x$HAVE_UNIX98" = "x"; then
127  AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])          echo "LinuxSampler only runs on UNIX98 compatible systems, which is mandatory for"
128            echo "pthread_mutexattr_settype() call in Mutex.cpp. You may want to run
129            echo "./configure with environment variable HAVE_UNIX98=1 in case you think you
130            echo "have a UNIX98 compatible system."
131            exit -1;
132        fi
133    fi
134    
135    # check for <features.h>
136    AC_CHECK_HEADERS(features.h)
137    
138    # test for POSIX thread library
139    m4_ifdef([m4_include(m4/pthread.m4)],,
140                 [sinclude([m4/pthread.m4])])
141    ACX_PTHREAD
142    LIBS="$PTHREAD_LIBS $LIBS"
143    CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
144    CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
145    CC="$PTHREAD_CC"
146    
147    # check for a bug in NPTL-enabled glibc
148    # (see Gentoo bug report #194076)
149    AC_ARG_ENABLE(nptl-bug-check,
150      [  --disable-nptl-bug-check
151                              Disable check for a bug in certain NPTL-enabled
152                              glibc versions that caused crashs.],
153      [config_check_nptl_bug="$enableval"],
154      [config_check_nptl_bug="yes"]
155    )
156    if test "$config_check_nptl_bug" = "yes"; then
157        m4_ifdef([m4_include(m4/nptl_bug.m4)],,
158                 [sinclude([m4/nptl_bug.m4])])
159        ACX_NPTL_GLIBC_BUG([
160            echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
161            echo "You seem to have a buggy PTHREAD library! LinuxSampler would"
162            echo "probably crash due to this. Please report us the system you are"
163            echo "using and/or file a bug report to the bug tracking system of"
164            echo "your distribution."
165            echo "If you have a NPTL-enabled glibc AND it was compiled for TLS as"
166            echo "well, you can try to circumvent this problem for now by setting"
167            echo "the environment variable LD_ASSUME_KERNEL=\"2.4.1\" , which"
168            echo "should cause this test to pass."
169            echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
170            AC_MSG_ERROR([possibly NPTL glibc bug detected])
171        ])
172    else
173        echo "NPTL glibc bug check disabled"
174    fi
175    
176    # FIXME: this is actually a dependency of libgig, not of LS directly, why
177    # isn't it hidden by libgig?
178    AC_CHECK_HEADERS(uuid/uuid.h)
179    AC_SEARCH_LIBS(uuid_generate, uuid)
180    
181    
182    
183    ###########################################################################
184    # Checks for available audio and MIDI systems / drivers
185    # (we throw an error if there's not at least one system for audio output and MIDI input available)
186    
187    have_midi_input_driver="false"
188    have_audio_output_driver="false"
189    
190    # ALSA
191    AC_ARG_ENABLE(alsa-driver,
192      [  --disable-alsa-driver
193                              Disable support for the Advanced Linux Sound
194                              Architecture (ALSA).],
195      [config_alsa_driver="$enableval"],
196      [config_alsa_driver="yes"]
197    )
198    have_alsa=0
199    if test "$config_alsa_driver" = "yes"; then
200        AC_CHECK_HEADER(alsa/asoundlib.h,
201            AC_CHECK_LIB(asound, main,
202                                     have_alsa=1
203                                     ,
204                                     have_alsa=0
205                        )
206                        ,
207                        have_alsa=0
208        )
209        if test "$have_alsa" = "1"; then
210            have_midi_input_driver="true"
211            have_audio_output_driver="true";
212        fi
213    
214        echo -n "checking Alsa version... "
215        AC_LANG_SAVE
216        AC_LANG_C
217        AC_TRY_RUN([
218            #include <alsa/asoundlib.h>
219            void main(void) {
220                /* ensure backward compatibility */
221                #if !defined(SND_LIB_MAJOR) && defined(SOUNDLIB_VERSION_MAJOR)
222                #define SND_LIB_MAJOR SOUNDLIB_VERSION_MAJOR
223                #endif
224                exit(SND_LIB_MAJOR);
225            }
226        ],
227        alsa_major=0,
228        alsa_major=$?,
229        alsa_major=0
230        )
231        AC_TRY_RUN([
232            #include <alsa/asoundlib.h>
233            void main(void) {
234                /* ensure backward compatibility */
235                #if !defined(SND_LIB_MINOR) && defined(SOUNDLIB_VERSION_MINOR)
236                #define SND_LIB_MINOR SOUNDLIB_VERSION_MINOR
237                #endif
238                exit(SND_LIB_MINOR);
239            }
240        ],
241        alsa_minor=0,
242        alsa_minor=$?,
243        alsa_minor=0
244        )
245        AC_TRY_RUN([
246            #include <alsa/asoundlib.h>
247            void main(void) {
248                /* ensure backward compatibility */
249                #if !defined(SND_LIB_SUBMINOR) && defined(SOUNDLIB_VERSION_SUBMINOR)
250                #define SND_LIB_SUBMINOR SOUNDLIB_VERSION_SUBMINOR
251                #endif
252                exit(SND_LIB_SUBMINOR);
253            }
254        ],
255        alsa_subminor=0,
256        alsa_subminor=$?,
257        alsa_subminor=0
258        )
259        AC_LANG_RESTORE
260        echo "$alsa_major.$alsa_minor.$alsa_subminor";
261        AC_DEFINE_UNQUOTED(ALSA_MAJOR,$alsa_major,[Define to the major version number of your Alsa installation.])
262        AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])
263        AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])
264    else
265        echo "ALSA support disabled by configure script parameter"
266    fi
267    AM_CONDITIONAL(HAVE_ALSA, test $have_alsa = "1")
268    AC_DEFINE_UNQUOTED(HAVE_ALSA,$have_alsa,[Define to 1 if you have ALSA installed.])
269    config_have_alsa="no"
270    if test $have_alsa = "1"; then
271        config_have_alsa="yes"
272    fi
273    
274  # JACK  # JACK
275  PKG_CHECK_MODULES(JACK, jack, HAVE_JACK=true, HAVE_JACK=false)  AC_ARG_ENABLE(jack-driver,
276  AC_SUBST(JACK_LIBS)    [  --disable-jack-driver
277  AC_SUBST(JACK_CFLAGS)                            Disable support for the Jack Audio Connection Kit
278  if test $HAVE_JACK = false; then                            (JACK).],
279      HAVE_JACK=0;    [config_jack_driver="$enableval"],
280      [config_jack_driver="yes"]
281    )
282    have_jack=0
283    if test "$config_jack_driver" = "yes"; then
284        PKG_CHECK_MODULES(JACK, jack, have_jack=1, have_jack=0)
285        if test $have_jack = "1"; then
286            AC_SUBST(JACK_LIBS)
287            AC_SUBST(JACK_CFLAGS)
288            linuxsampler_save_LIBS=$LIBS
289            LIBS="$JACK_LIBS $LIBS"
290            AC_CHECK_FUNCS(jack_client_name_size jack_client_open)
291            LIBS=$linuxsampler_save_LIBS
292            have_audio_output_driver="true";
293        fi
294  else  else
295      HAVE_JACK=1;      echo "JACK support disabled by configure script parameter"
296    fi
297    AM_CONDITIONAL(HAVE_JACK, test $have_jack = "1")
298    AC_DEFINE_UNQUOTED(HAVE_JACK,$have_jack,[Define to 1 if you have JACK installed.])
299    config_have_jack="no"
300    if test $have_jack = "1"; then
301        config_have_jack="yes"
302  fi  fi
 AC_DEFINE_UNQUOTED(HAVE_JACK,$HAVE_JACK,[Define to 1 if you have JACK installed.])  
303    
304    # JACK MIDI
305    have_jack_midi=0
306    if test $have_jack = "1"; then
307        linuxsampler_save_CFLAGS=$CFLAGS
308        linuxsampler_save_LIBS=$LIBS
309        CFLAGS="$JACK_CFLAGS $CFLAGS"
310        LIBS="$JACK_LIBS $LIBS"
311        AC_CHECK_HEADER(jack/midiport.h, have_jack_midi=1, have_jack_midi=0)
312        if test $have_jack_midi = "1"; then
313            AC_CHECK_FUNCS(jack_midi_get_event_count)
314            AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <jack/midiport.h>]], [[
315                jack_midi_clear_buffer(0, 0);
316            ]])], [AC_DEFINE(JACK_MIDI_FUNCS_NEED_NFRAMES, 1,
317                      [Define to 1 if you have the old jack midi functions that need an nframes argument.])])
318            have_midi_input_driver="true"
319        fi
320        CFLAGS=$linuxsampler_save_CFLAGS
321        LIBS=$linuxsampler_save_LIBS
322    fi
323    AM_CONDITIONAL(HAVE_JACK_MIDI, test $have_jack_midi = "1")
324    AC_DEFINE_UNQUOTED(HAVE_JACK_MIDI, $have_jack_midi,
325                       [Define to 1 if you have JACK with MIDI support installed.])
326    config_have_jack_midi="no"
327    if test $have_jack_midi = "1"; then
328        config_have_jack_midi="yes"
329    fi
330    
331    # ARTS
332    AC_ARG_ENABLE(arts-driver,
333      [  --disable-arts-driver
334                              Disable support for the Analogue Realtime System
335                              (aRts).],
336      [config_arts_driver="$enableval"],
337      [config_arts_driver="yes"]
338    )
339    have_arts=0
340    if test "$config_arts_driver" = "yes"; then
341        m4_ifdef([m4_include(m4/arts.m4)],,
342                 [sinclude([m4/arts.m4])])
343        AM_PATH_ARTS(0.9.5, have_arts=1, have_arts=0)
344        if test "$have_arts" = "1"; then
345            have_audio_output_driver="true"
346        fi
347    else
348        echo "ARTS support disabled by configure script parameter"
349    fi
350    AM_CONDITIONAL(HAVE_ARTS, test "$have_arts" = "1")
351    AC_DEFINE_UNQUOTED(HAVE_ARTS,$have_arts,[Define to 1 if you have aRts installed.])
352    config_have_arts="no"
353    if test $have_arts = "1"; then
354        config_have_arts="yes"
355    fi
356    
357    # ASIO AUDIO (Win32)
358    AC_ARG_ENABLE(asiosdk-dir,
359      [  --enable-asiosdk-dir
360                              Directory where the ASIO SDK is located, this automatically
361                              enables the compilation of the ASIO audio output driver.],
362      [config_asiosdk_dir="${enableval}"],
363      [config_asiosdk_dir="."]
364    )
365    AC_SUBST(config_asiosdk_dir)
366    
367    AC_ARG_ENABLE(asio-driver,
368      [  --disable-asio-driver
369                              Disable support for the Windows ASIO driver.],
370      [config_asio_driver="$enableval"],
371      [config_asio_driver="yes"]
372    )
373    have_asio=0
374    ASIOSDK_BASEDIR=
375    if test "$config_asio_driver" = "yes"; then
376        asiosdk_headerfile=$config_asiosdk_dir/ASIOSDK2/common/asio.h
377        echo -n "checking for ASIO headerfile: $asiosdk_headerfile ...."
378        if test -e $asiosdk_headerfile ; then
379            echo yes
380            have_asio=1
381            ASIOSDK_BASEDIR="$config_asiosdk_dir"
382        else
383            echo no
384            have_asio=0
385        fi
386        if test "$have_asio" = "1"; then
387            have_audio_output_driver="true"
388        fi
389    else
390        echo "Windows ASIO support disabled by configure script parameter"
391    fi
392    AC_SUBST(ASIOSDK_BASEDIR)
393    AM_CONDITIONAL(HAVE_ASIO, test $have_asio = "1")
394    AC_DEFINE_UNQUOTED(HAVE_ASIO,$have_asio,[Define to 1 if you have ASIO installed.])
395    config_have_asio="no"
396    if test $have_asio = "1"; then
397        config_have_asio="yes"
398    fi
399    
400    # MidiShare (Linux, OS X, Windows)
401    AC_ARG_ENABLE(midishare-driver,
402      [  --disable-midishare-driver
403                              Disable support for the MidiShare system.],
404      [config_midishare_driver="$enableval"],
405      [config_midishare_driver="yes"]
406    )
407    have_midishare=0
408    if test "$config_midishare_driver" = "yes"; then
409        AC_CHECK_HEADER(MidiShare.h,
410            AC_CHECK_LIB(MidiShare, MidiCountEvs,
411                                    have_midishare=1,
412                                    have_midishare=0
413                        )
414                        ,
415                        have_midishare=0
416        )
417        if test "$have_midishare" = "1"; then
418            have_midi_input_driver="true"
419        fi
420    else
421        echo "MidiShare support disabled by configure script parameter"
422    fi
423    AM_CONDITIONAL(HAVE_MIDISHARE, test $have_midishare = "1")
424    AC_DEFINE_UNQUOTED(HAVE_MIDISHARE,$have_midishare,[Define to 1 if you have MidiShare installed.])
425    config_have_midishare="no"
426    if test $have_midishare = "1"; then
427        config_have_midishare="yes"
428    fi
429    
430    # CoreMIDI (OS X)
431    AC_ARG_ENABLE(coremidi-driver,
432      [  --disable-coremidi-driver
433                              Disable support for the Apple CoreMIDI system.],
434      [config_coremidi_driver="$enableval"],
435      [config_coremidi_driver="yes"]
436    )
437    have_coremidi=0
438    if test "$config_coremidi_driver" = "yes"; then
439        AC_CHECK_HEADER(CoreMIDI/CoreMIDI.h,
440            have_coremidi=1,
441            have_coremidi=0
442        )
443        if test "$have_coremidi" = "1"; then
444            have_midi_input_driver="true"
445        fi
446    else
447        echo "CoreMIDI support disabled by configure script parameter"
448    fi
449    AM_CONDITIONAL(HAVE_COREMIDI, test $have_coremidi = "1")
450    AC_DEFINE_UNQUOTED(HAVE_COREMIDI,$have_coremidi,[Define to 1 if you have CoreMIDI installed.])
451    config_have_coremidi="no"
452    if test $have_coremidi = "1"; then
453        config_have_coremidi="yes"
454    fi
455    
456    # CoreAudio (OS X)
457    AC_ARG_ENABLE(coreaudio-driver,
458      [  --disable-coreaudio-driver
459                              Disable support for the Apple CoreAudio system.],
460      [config_coreaudio_driver="$enableval"],
461      [config_coreaudio_driver="yes"]
462    )
463    have_coreaudio=0
464    if test "$config_coreaudio_driver" = "yes"; then
465        AC_CHECK_HEADER(CoreAudio/CoreAudio.h,
466            have_coreaudio=1,
467            have_coreaudio=0
468        )
469        if test "$have_coreaudio" = "1"; then
470            have_audio_output_driver="true"
471        fi
472    else
473        echo "CoreAudio support disabled by configure script parameter"
474    fi
475    AM_CONDITIONAL(HAVE_COREAUDIO, test $have_coreaudio = "1")
476    AC_DEFINE_UNQUOTED(HAVE_COREAUDIO,$have_coreaudio,[Define to 1 if you have CoreAudio installed.])
477    config_have_coreaudio="no"
478    if test $have_coreaudio = "1"; then
479        config_have_coreaudio="yes"
480    fi
481    
482    # MME MIDI (Win32)
483    AC_ARG_ENABLE(mmemidi-driver,
484      [  --disable-mmemidi-driver
485                              Disable support for the Windows MME MIDI system.],
486      [config_mmemidi_driver="$enableval"],
487      [config_mmemidi_driver="yes"]
488    )
489    have_mmemidi=0
490    if test "$config_mmemidi_driver" = "yes"; then
491        AC_CHECK_HEADERS(mmsystem.h,
492            have_mmemidi=1,
493            have_mmemidi=0
494        )
495        if test "$have_mmemidi" = "1"; then
496            have_midi_input_driver="true"
497        fi
498    else
499        echo "MME MIDI support disabled by configure script parameter"
500    fi
501    AM_CONDITIONAL(HAVE_MME_MIDI, test $have_mmemidi = "1")
502    AC_DEFINE_UNQUOTED(HAVE_MME_MIDI,$have_mmemidi,[Define to 1 if you have MME MIDI installed.])
503    config_have_mme="no"
504    if test $have_mmemidi = "1"; then
505        config_have_mme="yes"
506    fi
507    
508    # DSSI
509    AC_CHECK_HEADERS(dssi.h,
510            config_have_dssi="yes",
511            config_have_dssi="no")
512    AM_CONDITIONAL(HAVE_DSSI, test $config_have_dssi = "yes")
513    
514    # LV2
515    PKG_CHECK_MODULES(LV2, lv2,
516      [config_have_lv2="yes"
517      AC_DEFINE(HAVE_LV2_PACKAGE, 1,
518                [Define to 1 if you have the lv2 package installed.])],
519      [config_have_lv2="no"
520      PKG_CHECK_MODULES(LV2, lv2core, config_have_lv2="yes",
521        [AC_CHECK_HEADER(lv2.h, config_have_lv2="yes")])])
522    
523    AC_SUBST(LV2_CFLAGS)
524    AC_SUBST(LV2_LIBS)
525    AM_CONDITIONAL(HAVE_LV2, test $config_have_lv2 = "yes")
526    
527    # VST
528    AC_ARG_ENABLE(vstsdk-dir,
529      [  --enable-vstsdk-dir
530                              Directory where the VST SDK is located.
531                              This automatically enables the compilation
532                              of the VST plugin.],
533      [VSTSDK_DIR="${enableval}"],
534      [VSTSDK_DIR=]
535    )
536    AC_SUBST(VSTSDK_DIR)
537    AM_CONDITIONAL(HAVE_VST, test "x$VSTSDK_DIR" != "x")
538    config_have_vst="no"
539    if test "x$VSTSDK_DIR" != "x"; then
540        config_have_vst="yes"
541    fi
542    
543    # AU
544    AC_CHECK_HEADERS(AudioUnit/AudioUnit.h,
545            config_have_au="yes",
546            config_have_au="no")
547    AM_CONDITIONAL(HAVE_AU, test $config_have_au = "yes")
548    AM_CONDITIONAL(HAVE_AUFLAGS, test "$AUFLAGS" != "")
549    
550    if test $config_have_au = "yes" ; then
551        if test "x$DEVELOPER_EXTRAS_DIR" = "x" ; then
552            if test -d /Developer/Extras ; then
553                DEVELOPER_EXTRAS_DIR=/Developer/Extras
554            else      
555                DEVELOPER_EXTRAS_DIR=/Developer/Examples
556            fi
557        fi
558        AC_SUBST(DEVELOPER_EXTRAS_DIR)
559    fi
560    
561    if test "x$MAC_PLUGIN_INSTALL_DIR" = "x" ; then
562        MAC_PLUGIN_INSTALL_DIR=/Library/Audio/Plug-Ins
563    fi
564    AC_SUBST(MAC_PLUGIN_INSTALL_DIR)
565    
566    # have we found at least one MIDI input and one audio output driver ?
567    if test "$have_midi_input_driver" = "false"; then
568        echo "No supported MIDI input system found!"
569        echo "Sorry, LinuxSampler only supports the following MIDI drivers at the moment:"
570        echo "ALSA, JACK, MIDIShare, CoreMIDI, MME."
571        echo "If you think you have one of those available on your system, make sure you"
572        echo "also have the respective development (header) files installed."
573        exit -1;
574    fi
575    if test "$have_audio_output_driver" = "false"; then
576        echo "No supported audio output system found!"
577        echo "Sorry, LinuxSampler only supports ALSA, JACK, ARTS and ASIO as audio output"
578        echo "driver at the moment!"
579        exit -1;
580    fi
581    
582    
583    
584    ###########################################################################
585    # Checks for various DLL libraries
586    
587    # Check presence of libgig
588    libgig_version="3.3.0"
589    PKG_CHECK_MODULES(GIG, gig >= $libgig_version, HAVE_GIG=true, HAVE_GIG=false)
590    if test "$HAVE_GIG" = "false"; then
591        echo "Required libgig version not found!"
592        echo "You need to have libgig version ${libgig_version} installed!"
593        exit -1;
594    else
595        echo "yes, found libgig $libgig_version"
596    fi
597    AC_SUBST(GIG_CFLAGS)
598    AC_SUBST(GIG_LIBS)
599    
600    # SF2 Engine (requires libgig)
601    AC_ARG_ENABLE(sf2-engine,
602      [  --disable-sf2-engine
603                              Disable compilation of the SF2 engine.
604                              You need to have libgig installed.],
605      [config_sf2_engine="$enableval"],
606      [config_sf2_engine="yes"]
607    )
608    HAVE_SF2=0;
609    if test "$config_sf2_engine" = "yes"; then
610        HAVE_SF2=1
611    else
612        echo "SF2 engine disabled by configure script parameter"
613    fi
614    AM_CONDITIONAL(HAVE_SF2, test $HAVE_SF2 = 1)
615    AC_DEFINE_UNQUOTED(HAVE_SF2,$HAVE_SF2,[Define to 1 if you want SF2 engine and have libsf2 installed.])
616    config_have_sf2="no"
617    if test $HAVE_SF2 = "1"; then
618        config_have_sf2="yes"
619    fi
620    
621    # Check presence of libsndfile
622    libsndfile_version="1.0"
623    PKG_CHECK_MODULES(SNDFILE, sndfile >= $libsndfile_version, HAVE_SNDFILE=true, HAVE_SNDFILE=false)
624    if test "$HAVE_SNDFILE" = "false"; then
625        echo "Required libsndfile version not found!"
626        echo "You need to have libsndfile version ${libsndfile_version} installed!"
627        exit -1;
628    else
629        echo "yes, found libsndfile $libsndfile_version"
630    fi
631    AC_SUBST(SNDFILE_CFLAGS)
632    AC_SUBST(SNDFILE_LIBS)
633    
634    # Check for Vorbis support in libsndfile
635    linuxsampler_save_CFLAGS=$CFLAGS
636    CFLAGS="$SNDFILE_CFLAGS $CFLAGS"
637    AC_CHECK_DECLS([SF_FORMAT_VORBIS], [], [], [[#include <sndfile.h>]])
638    
639    # Check for loop functionality in libsndfile
640    AC_CHECK_MEMBERS([SF_INSTRUMENT.loops],,
641                     [AC_MSG_WARN([Your version of libsndfile does not support
642        reading of loop information. LinuxSampler will not be able to
643        extract loop information from sample files.])],
644                     [#include <sndfile.h>])
645    CFLAGS=$linuxsampler_save_CFLAGS
646    
647    # Instruments DB feature (requires SQLite 3.3)
648    AC_ARG_ENABLE(instruments-db,
649      [  --disable-instruments-db
650                              Disable compilation of the sampler's instruments
651                              database feature. You need to have SQLite 3.3
652                              or younger installed for this feature.],
653      [config_instruments_db="$enableval"],
654      [config_instruments_db="yes"]
655    )
656    HAVE_SQLITE3=0;
657    if test "$config_instruments_db" = "yes"; then
658        # Check presence of sqlite3
659        sqlite_version="3.3"
660        PKG_CHECK_MODULES(SQLITE3, sqlite3 >= $sqlite_version, HAVE_SQLITE3=true, HAVE_SQLITE3=false)
661        AC_SUBST(SQLITE3_LIBS)
662        AC_SUBST(SQLITE3_CFLAGS)
663        if test $HAVE_SQLITE3 = false; then
664            HAVE_SQLITE3=0
665            config_instruments_db="no"
666            echo "*** Required sqlite version not found!"
667            echo "*** You need to have sqlite version ${sqlite_version} or higher"
668            echo "*** for instruments database support to be enabled."
669            echo "*** Support for instruments DB will be disabled!"
670        else
671            HAVE_SQLITE3=1
672        fi
673    else
674        echo "Instruments DB feature disabled by configure script parameter"
675    fi
676    AM_CONDITIONAL(HAVE_SQLITE3, test $HAVE_SQLITE3 = 1)
677    AC_DEFINE_UNQUOTED(HAVE_SQLITE3,$HAVE_SQLITE3,[Define to 1 if you want the instruments DB feature and have SQLITE3 installed.])
678    
679    
680    
681    ###########################################################################
682    # Handle Configuration Options
683    
684    # TODO: should we use AC_ARG_VAR(variable, description) instead?
685    
686    AC_ARG_ENABLE(asm,
687      [  --disable-asm
688                              Enable hand-crafted assembly optimizations
689                              (default=on). LinuxSampler provides CPU specific
690                              assembly optimizations. This is currently limited
691                              to just enter a fast (denormal) FPU mode on x86
692                              platforms. There are currently no synthesis core
693                              assembly optimizations anymore since LS 0.4.0],
694      [config_asm="$enableval"],
695      [config_asm="yes"]
696    )
697    if test "$config_asm" = "yes"; then
698      AC_DEFINE_UNQUOTED(CONFIG_ASM, 1, [Define to 1 if you want to enable asm optimizations.])
699    fi
700    
701    AC_ARG_ENABLE(dev-mode,
702      [  --enable-dev-mode
703                              Enable development mode (default=off). In that mode
704                              we do some extra sanity checks here and there.
705                              This helps to spot possible problems, but reduces
706                              efficiency a bit],
707      [config_dev_mode="$enableval"],
708      [config_dev_mode="no"]
709    )
710    if test "$config_dev_mode" = "yes"; then
711      AC_DEFINE_UNQUOTED(CONFIG_DEVMODE, 1, [Define to 1 if you want to enable development mode.])
712    fi
713    
714    AC_ARG_ENABLE(debug-level,
715      [  --enable-debug-level
716                              Specify verbosity of console messages (default=1).
717                              The higher the value, the higher will be verbosity.
718                              A value of 0 means no console output at all.
719                              There's not really an upper limit but the usual
720                              level of all messages is currently somewhere less
721                              than 10.],
722      [config_debug_level="${enableval}"],
723      [config_debug_level="1"]
724    )
725    AC_DEFINE_UNQUOTED(CONFIG_DEBUG_LEVEL, $config_debug_level, [Define console verbosity.])
726    
727    AC_ARG_ENABLE(rt-exceptions,
728      [  --enable-rt-exceptions
729                              Enable exceptions in the realtime thread
730                              (default=no). If this is enabled, exceptions will
731                              be thrown on critical errors in the realtime
732                              context as well. Otherwise if disabled
733                              segmentation faults will be forced by the
734                              application on critical errors.],
735      [config_rt_exceptions="$enableval"],
736      [config_rt_exceptions="no"]
737    )
738    if test "$config_rt_exceptions" = "yes"; then
739      AC_DEFINE_UNQUOTED(CONFIG_RT_EXCEPTIONS, 1, [Define to 1 to allow exceptions in the realtime context.])
740    fi
741    
742    config_pthread_testcancel="$mac"
743    AC_ARG_ENABLE(pthread-testcancel,
744      [  --enable-pthread-testcancel
745                              Enable pthread_testcancel() calls and avoid
746                              asynchronous cancel of pthreads (default=yes
747                              for Mac targets, no otherwise).],
748      [config_pthread_testcancel="$enableval"],
749      [])
750    if test "$config_pthread_testcancel" = "yes"; then
751      AC_DEFINE_UNQUOTED(CONFIG_PTHREAD_TESTCANCEL, 1, [Define to 1 to enable pthread_testcancel() calls.])
752    fi
753    
754    AC_ARG_ENABLE(preload-samples,
755      [  --enable-preload-samples
756                              Due to seeking and latency issues with hard drives
757                              we have to cache a small part of samples' head in
758                              RAM (default=32768). The higher this value the
759                              more memory will be occupied for each sample, but
760                              the safer this will be in regards of possible
761                              droputs. A 'good' value depends on the running
762                              system and usage dependant factors.],
763      [config_preload_samples="${enableval}"],
764      [config_preload_samples="32768"]
765    )
766    AC_DEFINE_UNQUOTED(CONFIG_PRELOAD_SAMPLES, $config_preload_samples, [Define amount of sample points to be cached in RAM.])
767    
768    AC_ARG_ENABLE(max-pitch,
769      [  --enable-max-pitch
770                              Specify the maximum allowed pitch value in octaves
771                              (default=4). To lower memory usage you might want
772                              set a smaller value.],
773      [config_max_pitch="${enableval}"],
774      [config_max_pitch="4"]
775    )
776    AC_DEFINE_UNQUOTED(CONFIG_MAX_PITCH, $config_max_pitch, [Define max. allowed pitch.])
777    
778    AC_ARG_ENABLE(max-events,
779      [  --enable-max-events
780                              Specify the maximum allowed amount of events to be
781                              processed per fragment (default=1024).],
782      [config_max_events="${enableval}"],
783      [config_max_events="1024"]
784    )
785    AC_DEFINE_UNQUOTED(CONFIG_MAX_EVENTS_PER_FRAGMENT, $config_max_events, [Define max. allowed events per fragment.])
786    
787    AC_ARG_ENABLE(eg-bottom,
788      [  --enable-eg-bottom
789                              Bottom limit of envelope generators
790                              (default=0.001). Certain kinds of curve types like
791                              exponential curves converge against 0 but never
792                              reach 0. So we have to define a certain low value
793                              after which we should consider all smaller values
794                              to be 'almost zero'. The smaller this value, the
795                              longer will voices survive in EG's release stage
796                              and thus waste voices. If this value is too high
797                              will cause click sounds though.],
798      [config_eg_bottom="${enableval}"],
799      [config_eg_bottom="0.001"]
800    )
801    AC_DEFINE_UNQUOTED(CONFIG_EG_BOTTOM, $config_eg_bottom, [Define bottom limit of envelopes.])
802    
803    AC_ARG_ENABLE(eg-min-release-time,
804      [  --enable-eg-min-release-time
805                              Specify the lowest allowed release time in seconds
806                              (default=0.0025). This value will also be used to
807                              ramp down voices on voice stealing. This value
808                              should always be less than the period time of the
809                              used audio driver, as in case of voice stealing
810                              the killed voice needs to be completely ramped
811                              down in the same fragment.],
812      [config_eg_min_release_time="${enableval}"],
813      [config_eg_min_release_time="0.0025"]
814    )
815    AC_DEFINE_UNQUOTED(CONFIG_EG_MIN_RELEASE_TIME, $config_eg_min_release_time, [Define min. release time.])
816    
817    AC_ARG_ENABLE(refill-streams,
818      [  --enable-refill-streams
819                              Number of streams that should be refilled in each
820                              disk thread cycle (default=4).],
821      [config_refill_streams="${enableval}"],
822      [config_refill_streams="4"]
823    )
824    AC_DEFINE_UNQUOTED(CONFIG_REFILL_STREAMS_PER_RUN, $config_refill_streams, [Define amount of streams to be refilled per cycle.])
825    
826    AC_ARG_ENABLE(stream-min-refill,
827      [  --enable-stream-min-refill
828                              Minimum refill size for disk streams (default=1024).
829                              The disk thread will go to sleep for a while if no
830                              stream had to be refilled more than this value in
831                              a disk thread cycle.],
832      [config_stream_min_refill="${enableval}"],
833      [config_stream_min_refill="1024"]
834    )
835    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MIN_REFILL_SIZE, $config_stream_min_refill, [Define min. stream refill size.])
836    
837    AC_ARG_ENABLE(stream-max-refill,
838      [  --enable-stream-max-refill
839                              Maximum refill size for disk streams
840                              (default=65536). The disk thread will refill
841                              each stream only by a size of this value per
842                              disk thread cycle.],
843      [config_stream_max_refill="${enableval}"],
844      [config_stream_max_refill="65536"]
845    )
846    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MAX_REFILL_SIZE, $config_stream_max_refill, [Define max. stream refill size.])
847    
848    AC_ARG_ENABLE(stream-size,
849      [  --enable-stream-size
850                              Size of each stream's ring buffer in sample points
851                              (default=262144).],
852      [config_stream_size="${enableval}"],
853      [config_stream_size="262144"]
854    )
855    AC_DEFINE_UNQUOTED(CONFIG_STREAM_BUFFER_SIZE, $config_stream_size, [Define each stream's ring buffer size.])
856    
857    AC_ARG_ENABLE(max-streams,
858      [  --enable-max-streams
859                              Initial maximum amount of disk streams
860                              (default=90). This value can be changed at
861                              runtime. It should always be higher than the
862                              maximum amount of voices.],
863      [config_max_streams="${enableval}"],
864      [config_max_streams="90"]
865    )
866    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_MAX_STREAMS, $config_max_streams, [Define initial max. streams.])
867    
868    AC_ARG_ENABLE(max-voices,
869      [  --enable-max-voices
870                              Initial maximum amount of voices (default=64).
871                              This value can be changed at runtime. It should
872                              always be lower than the maximum amount of disk
873                              streams.],
874      [config_max_voices="${enableval}"],
875      [config_max_voices="64"]
876    )
877    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_MAX_VOICES, $config_max_voices, [Define initial max. voices.])
878    
879    AC_ARG_ENABLE(subfragment-size,
880      [  --enable-subfragment-size
881                              Every audio fragment will be splitted into
882                              subfragments. Where each subfragment renders
883                              audio with constant synthesis parameters. This is
884                              done for efficiency reasons. This parameter
885                              defines the default size of a subfragment in
886                              sample points. A large value means less CPU time
887                              whereas a low value means better audio quality
888                              (default=32).],
889      [config_subfragment_size="${enableval}"],
890      [config_subfragment_size="32"]
891    )
892    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_SUBFRAGMENT_SIZE, $config_subfragment_size, [Define default subfragment size (in sample points).])
893    
894    AC_ARG_ENABLE(global-attenuation-default,
895      [  --enable-global-attenuation-default
896                              To prevent clipping all samples will be lowered
897                              in amplitude by this given default factor (can
898                              be overridden at runtime).
899                              (default=0.35)],
900      [config_global_attenuation_default="${enableval}"],
901      [config_global_attenuation_default="0.35"]
902    )
903    AC_DEFINE_UNQUOTED(CONFIG_GLOBAL_ATTENUATION_DEFAULT, $config_global_attenuation_default, [Define default global volume attenuation (as floating point factor).])
904    
905    AC_ARG_ENABLE(voice-steal-algo,
906      [  --enable-voice-steal-algo
907                              Voice stealing algorithm to be used. Currently
908                              available options:
909                                none:
910                                  Disable voice stealing completely.
911                                oldestvoiceonkey (default):
912                                  Try to kill a voice on the same key first,
913                                  if no success, proceed with the oldest key.
914                                oldestkey:
915                                  Try to kill a voice from the oldest active
916                                  key.],
917      [ if test ! "(" "${enableval}" = "none" \
918                  -o "${enableval}" = "oldestvoiceonkey" \
919                  -o "${enableval}" = "oldestkey" ")" ; then
920          AC_MSG_ERROR([Unknown voice stealing algorithm for parameter --enable-voice-steal-algo])
921        else
922          config_voice_steal_algo="${enableval}"
923        fi
924      ],
925      [config_voice_steal_algo="oldestvoiceonkey"]
926    )
927    AC_DEFINE_UNQUOTED(CONFIG_VOICE_STEAL_ALGO, voice_steal_algo_${config_voice_steal_algo}, [Define voice stealing algorithm to be used.])
928    
929    AC_ARG_ENABLE(sysex-buffer-size,
930      [  --enable-sysex-buffer-size
931                              System Exclusive Message buffer size in kB
932                              (default=2048).],
933      [config_sysex_buffer_size="${enableval}"],
934      [config_sysex_buffer_size="2048"]
935    )
936    AC_DEFINE_UNQUOTED(CONFIG_SYSEX_BUFFER_SIZE, $config_sysex_buffer_size, [Define SysEx buffer size.])
937    
938    AC_ARG_ENABLE(force-filter,
939      [  --enable-force-filter
940                              If enabled will force filter to be used even if
941                              no usage was define in instrument patch files.
942                              (default=no).],
943      [config_force_filter="$enableval"],
944      [config_force_filter="no"]
945    )
946    if test "$config_force_filter" = "yes"; then
947      AC_DEFINE_UNQUOTED(CONFIG_FORCE_FILTER, 1, [Define to 1 to force filter usage.])
948    fi
949    
950    AC_ARG_ENABLE(filter-cutoff-min,
951      [  --enable-filter-cutoff-min
952                              Minimum filter cutoff frequency in Hz
953                              (default=100.0).],
954      [config_filter_cutoff_min="${enableval}"],
955      [config_filter_cutoff_min="100.0"]
956    )
957    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MIN, ${config_filter_cutoff_min}f, [Define min. filter cutoff frequency.])
958    
959    AC_ARG_ENABLE(filter-cutoff-max,
960      [  --enable-filter-cutoff-max
961                              Maximum filter cutoff frequency in Hz
962                              (default=10000.0).],
963      [config_filter_cutoff_max="${enableval}"],
964      [config_filter_cutoff_max="10000.0"]
965    )
966    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MAX, ${config_filter_cutoff_max}f, [Define max. filter cutoff frequency.])
967    
968    AC_ARG_ENABLE(override-cutoff-ctrl,
969      [  --enable-override-cutoff-ctrl
970                              Override filter cutoff MIDI controller (default=no).
971                              Note: you have to define the MIDI controller number
972                              here, it's not a boolean parameter type! If this
973                              option is used, controller number given by
974                              instrument patch will be ignored and instead this
975                              supplied value will be used.],
976      [config_override_cutoff_ctrl="${enableval}"],
977      [config_override_cutoff_ctrl="no"]
978    )
979    if test ! "$config_override_cutoff_ctrl" = "no"; then
980      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_CUTOFF_CTRL, $config_override_cutoff_ctrl, [Define to a MIDI controller number to override cutoff control.])
981    fi
982    
983    AC_ARG_ENABLE(override-resonance-ctrl,
984      [  --enable-override-resonance-ctrl
985                              Override filter resonance MIDI controller
986                              (default=no). Note: you have to define the MIDI
987                              controller number here, it's not a boolean
988                              parameter type! If this option is used, controller
989                              number given by instrument patch will be ignored
990                              and instead this supplied value will be used.],
991      [config_override_resonance_ctrl="${enableval}"],
992      [config_override_resonance_ctrl="no"]
993    )
994    if test ! "$config_override_resonance_ctrl" = "no"; then
995      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_RESONANCE_CTRL, $config_override_resonance_ctrl, [Define to a MIDI controller number to override resonance control.])
996    fi
997    
998    AC_ARG_ENABLE(override-filter-type,
999      [  --enable-override-filter-type
1000                              Override filter type (default=no). Options:
1001                              hp: for highpass
1002                              bp: for bandpass
1003                              br: for bandreject
1004                              lp: for lowpass
1005                              lpt: for lowpass turbo],
1006      [ if   test "${enableval}" = "hp" ; then
1007           config_override_filter_type="::gig::vcf_type_highpass"
1008        elif test "${enableval}" = "bp" ; then
1009           config_override_filter_type="::gig::vcf_type_bandpass"
1010        elif test "${enableval}" = "br" ; then
1011           config_override_filter_type="::gig::vcf_type_bandreject"
1012        elif test "${enableval}" = "lp" ; then
1013           config_override_filter_type="::gig::vcf_type_lowpass"
1014        elif test "${enableval}" = "lpt" ; then
1015           config_override_filter_type="::gig::vcf_type_lowpassturbo"
1016        elif test ! "${enableval}" = "no"; then
1017           AC_MSG_ERROR([Unknown filter type for parameter --enable-override-filter-type])
1018        fi
1019      ],
1020      [config_override_filter_type="no"]
1021    )
1022    if test ! "$config_override_filter_type" = "no"; then
1023      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_FILTER_TYPE, $config_override_filter_type, [Define to a filter type to always force that filter type.])
1024    fi
1025    
1026    AC_ARG_ENABLE(gs-checksum,
1027      [  --enable-gs-checksum
1028                              Enable Roland General Synth SysEx checksum check
1029                              (default=no). If this is enabled, all GS SysEx
1030                              messages which do not provide a correct checksum
1031                              will be ignored. This is disabled by default as
1032                              not all devices honor GS checksums.],
1033      [config_assert_gs_sysex_checksum="$enableval"],
1034      [config_assert_gs_sysex_checksum="no"]
1035    )
1036    if test "config_assert_gs_sysex_checksum" = "yes"; then
1037      AC_DEFINE_UNQUOTED(CONFIG_ASSERT_GS_SYSEX_CHECKSUM, 1, [Define to 1 if you want to enable GS SysEx check.])
1038    fi
1039    
1040    AC_ARG_ENABLE(portamento-time-min,
1041      [  --enable-portamento-time-min
1042                              Minimum Portamento time in seconds
1043                              (default=0.1).],
1044      [config_portamento_time_min="${enableval}"],
1045      [config_portamento_time_min="0.1"]
1046    )
1047    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MIN, $config_portamento_time_min, [Define min. portamento time.])
1048    
1049    AC_ARG_ENABLE(portamento-time-max,
1050      [  --enable-portamento-time-max
1051                              Maximum Portamento time in seconds
1052                              (default=32).],
1053      [config_portamento_time_max="${enableval}"],
1054      [config_portamento_time_max="32"]
1055    )
1056    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MAX, $config_portamento_time_max, [Define max. portamento time.])
1057    
1058    AC_ARG_ENABLE(portamento-time-default,
1059      [  --enable-portamento-time-default
1060                              Default Portamento time in seconds
1061                              (default=1).],
1062      [config_portamento_time_default="${enableval}"],
1063      [config_portamento_time_default="1"]
1064    )
1065    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_DEFAULT, $config_portamento_time_default, [Define default portamento time.])
1066    
1067    AC_ARG_ENABLE(signed-triang-algo,
1068      [  --enable-signed-triang-algo
1069                              Signed triangular wave algorithm to be used (e.g. for LFOs).
1070                              Currently available options:
1071                                intmath:
1072                                  Uses integer math without any branch will then be
1073                                  converted to floating point value for each sample point.
1074                                  This int->float conversion might hurt on some systems.
1075                                intmathabs:
1076                                  Similar to intmath but uses abs() function.
1077                                  Depending on compiler and platrofm this could
1078                                  perform better than integer math as it avoids
1079                                  an extra integer multiply instruction.
1080                                diharmonic:
1081                                  The triangular wave will be approximated by adding two
1082                                  sinusoidials. This solution might especially hurt on
1083                                  systems with weak floating point unit.
1084                                benchmark (default):
1085                                  This is not an algorithm. Use this option if the
1086                                  appropriate algorithm should be automatically
1087                                  chosen by the configure script by performing a
1088                                  benchmark between the algorithms mentioned above.
1089                                  This will NOT work for cross compilation!],
1090      [ if test ! "(" "${enableval}" = "intmath" \
1091                  -o "${enableval}" = "intmathabs" \
1092                  -o "${enableval}" = "diharmonic" ")" ; then
1093          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-signed-triang-algo])
1094        else
1095          config_signed_triang_algo="${enableval}"
1096        fi
1097      ],
1098      [config_signed_triang_algo="benchmark"]
1099    )
1100    
1101    AC_ARG_ENABLE(unsigned-triang-algo,
1102      [  --enable-unsigned-triang-algo
1103                              Unsigned triangular wave algorithm to be used (e.g. for LFOs).
1104                              Currently available options:
1105                                intmath:
1106                                  Uses integer math without any branch will then be
1107                                  converted to floating point value for each sample point.
1108                                  This int->float conversion might hurt on some systems.
1109                                intmathabs:
1110                                  Similar to intmath but uses abs() function.
1111                                  Depending on compiler and platrofm this could
1112                                  perform better than integer math as it avoids
1113                                  an extra integer multiply instruction.
1114                                diharmonic:
1115                                  The triangular wave will be approximated by adding two
1116                                  sinusoidials. This solution might especially hurt on
1117                                  systems with weak floating point unit.
1118                                benchmark (default):
1119                                  This is not an algorithm. Use this option if the
1120                                  appropriate algorithm should be automatically
1121                                  chosen by the configure script by performing a
1122                                  benchmark between the algorithms mentioned above.
1123                                  This will NOT work for cross compilation!],
1124      [ if test ! "(" "${enableval}" = "intmath" \
1125                  -o "${enableval}" = "intmathabs" \
1126                  -o "${enableval}" = "diharmonic" ")" ; then
1127          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-unsigned-triang-algo])
1128        else
1129          config_unsigned_triang_algo="${enableval}"
1130        fi
1131      ],
1132      [config_unsigned_triang_algo="benchmark"]
1133    )
1134    
1135    AC_ARG_ENABLE(process-muted-channels,
1136      [  --enable-process-muted-channels
1137                              Enable processing of muted channels (default=no).
1138                              In that mode all MIDI events in the muted channels
1139                              will be processed. This will provide information
1140                              about the active voices in the muted channels and
1141                              will not discard notes, triggered in mute mode,
1142                              when the channel is unmuted. But also will reduce
1143                              the efficiency.],
1144      [config_process_muted_channels="$enableval"],
1145      [config_process_muted_channels="no"]
1146    )
1147    if test "$config_process_muted_channels" = "yes"; then
1148      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_MUTED_CHANNELS, 1, [Define to 1 if you want to enable processing of muted channels.])
1149    fi
1150    
1151    AC_ARG_ENABLE(process-all-notes-off,
1152      [  --disable-process-all-notes-off
1153                              Disable interpretation of All-Notes-Off MIDI
1154                              messages (default=on). By default LS will release
1155                              all voices whenever it receives an All-Notes-Off
1156                              MIDI message. You can disable this behavior, so
1157                              that LS simply ignores such messages.],
1158      [config_process_all_notes_off="$enableval"],
1159      [config_process_all_notes_off="yes"]
1160    )
1161    if test "$config_process_all_notes_off" = "yes"; then
1162      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_ALL_NOTES_OFF, 1, [Define to 1 if you want to enable processing of All-Notes-Off MIDI messages.])
1163    fi
1164    
1165    AC_ARG_ENABLE(interpolate-volume,
1166      [  --disable-interpolate-volume
1167                              Disable interpolation of volume modulation
1168                              (default=on). With this enabled, the volume changes
1169                              generated by for example the envelope generator
1170                              will be smoother, minimizing the risk for audio
1171                              clicks. Disable it to reduce CPU usage.],
1172      [config_interpolate_volume="$enableval"],
1173      [config_interpolate_volume="yes"]
1174    )
1175    if test "$config_interpolate_volume" = "yes"; then
1176      AC_DEFINE_UNQUOTED(CONFIG_INTERPOLATE_VOLUME, 1, [Define to 1 if you want to enable interpolation of volume modulation.])
1177    fi
1178    
1179    AC_ARG_ENABLE(master-volume-sysex-by-port,
1180      [  --enable-master-volume-sysex-by-port
1181                              Whether global volume sysex message should be
1182                              applied globally to the whole sampler or only to
1183                              the sampler channels connected to the same MIDI
1184                              input port on which the sysex message arrived on.
1185                              By default global volume sysex messages apply
1186                              globally to the whole sampler, since many MIDI
1187                              devices behave that way.],
1188      [config_master_volume_sysex_by_port="$enableval"],
1189      [config_master_volume_sysex_by_port="no"]
1190    )
1191    if test "$config_master_volume_sysex_by_port" = "yes"; then
1192      AC_DEFINE_UNQUOTED(CONFIG_MASTER_VOLUME_SYSEX_BY_PORT, 1, [Define to 1 if you want global volume sysex message only be applied to the respective MIDI port.])
1193    fi
1194    
1195    AC_ARG_ENABLE(plugin-dir,
1196      [  --enable-plugin-dir
1197                              Directory where the sampler shall look for potential plugins,
1198                              that is 3rd party shared libraries that should be loaded by
1199                              the sampler on startup. By default the sampler will search
1200                              for plugins in the subdirectory "plugins" below its own
1201                              library directory.
1202                              (i.e. /usr/local/lib/linuxsampler/plugins)],
1203      [config_plugin_dir="${enableval}"],
1204      [config_plugin_dir="${libdir}/linuxsampler/plugins"]
1205    )
1206    AC_SUBST(config_plugin_dir)
1207    
1208    AC_ARG_ENABLE(default-instruments-db-location,
1209      [  --enable-default-instruments-db-location
1210                              Only when instruments DB feature is enabled: file name
1211                              which shall be taken as default location of the
1212                              instruments DB file. This location can still be
1213                              overridden at runtime with a command line switch.
1214                              (default: /var/lib/linuxsampler/instruments.db)],
1215      [config_default_instruments_db_file="${enableval}"],
1216      [config_default_instruments_db_file="/var/lib/linuxsampler/instruments.db"]
1217    )
1218    AC_DEFINE_UNQUOTED(
1219        CONFIG_DEFAULT_INSTRUMENTS_DB_LOCATION,
1220        "$config_default_instruments_db_file",
1221        [Only when instruments DB feature is enabled: default location of the DB file.]
1222    )
1223    AC_SUBST(config_default_instruments_db_file)
1224    
1225    
1226    ###########################################################################
1227    # Automatic Benchmarks (to detect the best algorithms for the system)
1228    
1229    AC_LANG_SAVE
1230    
1231    if test "$config_signed_triang_algo" = "benchmark"; then
1232        echo -n "benchmarking for the best (signed) triangular oscillator algorithm... "
1233        AC_LANG_CPLUSPLUS
1234        AC_TRY_RUN([
1235                #define SIGNED 1
1236                #define SILENT 1
1237                #include "${srcdir}/benchmarks/triang.cpp"
1238            ],
1239            triang_signed=0,
1240            triang_signed=$?,
1241            triang_signed=0
1242        )
1243        if test "$triang_signed" = "2"; then
1244            config_signed_triang_algo="intmath"
1245            echo "integer math"
1246        elif test "$triang_signed" = "3"; then
1247            config_signed_triang_algo="diharmonic"
1248            echo "di harmonics"
1249        elif test "$triang_signed" = "5"; then
1250            config_signed_triang_algo="intmathabs"
1251            echo "integer math using abs()"
1252        else
1253            echo "Benchmark of signed triangular wave algorithms failed!"
1254            echo "Maybe you are doing cross compilation? In that case you have to select"
1255            echo "an algorithm manually with './configure --enable-signed-triang-algo=...'"
1256            echo "Call './configure --help' for further information or read configure.in."
1257            exit -1;
1258        fi
1259    else
1260        case "$config_signed_triang_algo" in
1261            intmath)
1262                triang_signed=2 ;;
1263            diharmonic)
1264                triang_signed=3 ;;
1265            intmathabs)
1266                triang_signed=5 ;;
1267        esac
1268    fi
1269    AC_DEFINE_UNQUOTED(CONFIG_SIGNED_TRIANG_ALGO, ${triang_signed}, [Define signed triangular wave algorithm to be used.])
1270    
1271    if test "$config_unsigned_triang_algo" = "benchmark"; then
1272        echo -n "benchmarking for the best (unsigned) triangular oscillator algorithm... "
1273        AC_LANG_CPLUSPLUS
1274        AC_TRY_RUN([
1275                #define SIGNED 0
1276                #define SILENT 1
1277                #include "${srcdir}/benchmarks/triang.cpp"
1278            ],
1279            triang_unsigned=0,
1280            triang_unsigned=$?,
1281            triang_unsigned=0
1282        )
1283        if test "$triang_unsigned" = "2"; then
1284            config_unsigned_triang_algo="intmath"
1285            echo "integer math"
1286        elif test "$triang_unsigned" = "3"; then
1287            config_unsigned_triang_algo="diharmonic"
1288            echo "di harmonics"
1289        elif test "$triang_unsigned" = "5"; then
1290            config_unsigned_triang_algo="intmathabs"
1291            echo "integer math using abs()"
1292        else
1293            echo "Benchmark of unsigned triangular wave algorithms failed!"
1294            echo "Maybe you are doing cross compilation? In that case you have to select"
1295            echo "an algorithm manually with './configure --enable-unsigned-triang-algo=...'"
1296            echo "Call './configure --help' for further information or read configure.in."
1297            exit -1;
1298        fi
1299    else
1300        case "$config_unsigned_triang_algo" in
1301            intmath)
1302                triang_unsigned=2 ;;
1303            diharmonic)
1304                triang_unsigned=3 ;;
1305            intmathabs)
1306                triang_unsigned=5 ;;
1307        esac
1308    fi
1309    AC_DEFINE_UNQUOTED(CONFIG_UNSIGNED_TRIANG_ALGO, ${triang_unsigned}, [Define unsigned triangular wave algorithm to be used.])
1310    
1311    AC_LANG_RESTORE
1312    
1313    
1314    ###########################################################################
1315    # Create Build Files
1316    
1317  AM_CONFIG_HEADER(config.h)  AM_CONFIG_HEADER(config.h)
1318  AM_INIT_AUTOMAKE(linuxsampler, 0.1)  AM_INIT_AUTOMAKE(linuxsampler, "$LINUXSAMPLER_RELEASE_MAJOR.$LINUXSAMPLER_RELEASE_MINOR.$LINUXSAMPLER_RELEASE_BUILD")
1319    
1320  AC_LANG_CPLUSPLUS  AC_LANG_CPLUSPLUS
 AC_PROG_CXX  
 AM_PROG_LIBTOOL  
1321    
1322  AC_OUTPUT(Makefile src/Makefile src/network/Makefile src/engines/Makefile src/engines/gig/Makefile src/engines/common/Makefile src/common/Makefile src/audiodriver/Makefile src/mididriver/Makefile src/lib/Makefile src/lib/fileloader/Makefile src/lib/fileloader/libgig/Makefile src/testcases/Makefile src/drivers/Makefile)  # autoconf 2.59/libtool 1.5.12 bug? work-around. Without a check like
1323    # this, the dlfcn.h check in am_prog_libtool may fail.
1324    AC_CHECK_HEADER(stdlib.h)
1325    
1326    AC_OUTPUT( \
1327        Makefile \
1328        man/Makefile \
1329        man/linuxsampler.1 \
1330        src/Makefile \
1331        src/db/Makefile \
1332        src/network/Makefile \
1333        src/engines/Makefile \
1334        src/engines/gig/Makefile \
1335        src/engines/sf2/Makefile \
1336        src/engines/sfz/Makefile \
1337        src/engines/common/Makefile \
1338        src/effects/Makefile \
1339        src/common/Makefile \
1340        src/testcases/Makefile \
1341        src/drivers/Makefile \
1342        src/drivers/audio/Makefile \
1343        src/drivers/midi/Makefile \
1344        src/plugins/Makefile \
1345        src/hostplugins/Makefile \
1346        src/hostplugins/dssi/Makefile \
1347        src/hostplugins/lv2/Makefile \
1348        src/hostplugins/vst/Makefile \
1349        src/hostplugins/au/Makefile \
1350        linuxsampler.spec \
1351        debian/Makefile \
1352        Artwork/Makefile \
1353        scripts/Makefile \
1354        osx/Makefile \
1355        osx/linuxsampler.xcodeproj/Makefile \
1356        Documentation/Makefile \
1357        Documentation/Engines/Makefile \
1358        Documentation/Engines/gig/Makefile \
1359        linuxsampler.pc \
1360        Doxyfile \
1361    )
1362    
1363    # resolve all nested variables in '${config_plugin_dir}'
1364    # (merely for providing a human readable summary below)
1365    while test $config_plugin_dir != `eval echo ${config_plugin_dir}` ; do
1366            config_plugin_dir=`eval echo ${config_plugin_dir}`
1367    done
1368    
1369    
1370    ###########################################################################
1371    # Output All Configuration Options
1372    
1373    echo ""
1374    echo "#####################################################################"
1375    echo "# LinuxSampler Configuration                                        #"
1376    echo "#-------------------------------------------------------------------#"
1377    echo "# Release Version: ${LINUXSAMPLER_RELEASE_MAJOR}.${LINUXSAMPLER_RELEASE_MINOR}.${LINUXSAMPLER_RELEASE_BUILD}"
1378    echo "# LSCP Version: ${LSCP_RELEASE_MAJOR}.${LSCP_RELEASE_MINOR}"
1379    echo "#-------------------------------------------------------------------"
1380    echo "# Assembly Optimizations: ${config_asm}"
1381    echo "# Development Mode: ${config_dev_mode}"
1382    echo "# Debug Level: ${config_debug_level}"
1383    echo "# Use Exceptions in RT Context: ${config_rt_exceptions}"
1384    echo "# Preload Samples: ${config_preload_samples}"
1385    echo "# Maximum Pitch: ${config_max_pitch} (octaves)"
1386    echo "# Maximum Events: ${config_max_events}"
1387    echo "# Envelope Bottom Level: ${config_eg_bottom} (linear)"
1388    echo "# Envelope Minimum Release Time: ${config_eg_min_release_time} s"
1389    echo "# Streams to be refilled per Disk Thread Cycle: ${config_refill_streams}"
1390    echo "# Minimum Stream Refill Size: ${config_stream_min_refill}"
1391    echo "# Maximum Stream Refill Size: ${config_stream_max_refill}"
1392    echo "# Stream Size: ${config_stream_size}"
1393    echo "# Default Maximum Disk Streams: ${config_max_streams}"
1394    echo "# Default Maximum Voices: ${config_max_voices}"
1395    echo "# Default Subfragment Size: ${config_subfragment_size}"
1396    echo "# Default Global Volume Attenuation: ${config_global_attenuation_default}"
1397    echo "# Voice Stealing Algorithm: ${config_voice_steal_algo}"
1398    echo "# Signed Triangular Oscillator Algorithm: ${config_signed_triang_algo}"
1399    echo "# Unsigned Triangular Oscillator Algorithm: ${config_unsigned_triang_algo}"
1400    echo "# SysEx Buffer Size: ${config_sysex_buffer_size} Byte"
1401    echo "# Min. Portamento Time: ${config_portamento_time_min} s"
1402    echo "# Max. Portamento Time: ${config_portamento_time_max} s"
1403    echo "# Default Portamento Time: ${config_portamento_time_default} s"
1404    echo "# Force Filter Usage: ${config_force_filter}"
1405    echo "# Filter Cutoff Minimum: ${config_filter_cutoff_min} Hz"
1406    echo "# Filter Cutoff Maximum: ${config_filter_cutoff_max} Hz"
1407    echo "# Override Filter Cutoff Controller: ${config_override_cutoff_ctrl}"
1408    echo "# Override Filter Resonance Controller: ${config_override_resonance_ctrl}"
1409    echo "# Override Filter Type: ${config_override_filter_type}"
1410    echo "# Assert GS SysEx Checksum: ${config_assert_gs_sysex_checksum}"
1411    echo "# Process Muted Channels: ${config_process_muted_channels}"
1412    echo "# Process All-Notes-Off MIDI message: ${config_process_all_notes_off}"
1413    echo "# Apply global volume SysEx by MIDI port: ${config_master_volume_sysex_by_port}"
1414    echo "# Interpolate Volume: ${config_interpolate_volume}"
1415    echo "# Instruments database support: ${config_instruments_db}"
1416    if test "$config_instruments_db" = "yes"; then
1417    echo "# Instruments DB default location: ${config_default_instruments_db_file}"
1418    fi
1419    echo "# Plugin Path: ${config_plugin_dir}"
1420    echo "#-------------------------------------------------------------------"
1421    echo "# MIDI Input Drivers:"
1422    echo "# ALSA: ${config_have_alsa}, JACK: ${config_have_jack_midi}, CoreMIDI: ${config_have_coremidi}, MME: ${config_have_mme}, MidiShare: ${config_have_midishare}"
1423    echo "#-------------------------------------------------------------------"
1424    echo "# Audio Output Drivers:"
1425    echo "# ALSA: ${config_have_alsa}, JACK: ${config_have_jack}, ARTS: ${config_have_arts}, CoreAudio: ${config_have_coreaudio}, ASIO: ${config_have_asio}"
1426    echo "#-------------------------------------------------------------------"
1427    echo "# Sampler Engines:"
1428    echo "# GIG: yes, SF2: ${config_have_sf2}, SFZ: yes"
1429    echo "#-------------------------------------------------------------------"
1430    echo "# Effect plugin systems for internal effects:"
1431    echo "# LADSPA: yes"
1432    echo "#-------------------------------------------------------------------"
1433    echo "# Building sampler as plugin for following host standards:"
1434    echo "# DSSI: ${config_have_dssi}, LV2: ${config_have_lv2}, VST: ${config_have_vst}, AU: ${config_have_au}"
1435    echo "#-------------------------------------------------------------------#"
1436    echo "# Read './configure --help' or file 'configure.in' for details.     #"
1437    echo "#####################################################################"
1438    echo ""
1439    echo "Good. Now type 'make' to compile, followed by 'make install' as root."
1440    echo ""

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