/[svn]/linuxsampler/trunk/configure.in
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revision 12 by schoenebeck, Sun Nov 16 19:01:50 2003 UTC revision 2197 by persson, Sat Jul 2 09:55:42 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    PKG_PROG_PKG_CONFIG
52    
53    ###########################################################################
54    # General Checks
55    
56  echo -n "Checking whether x86 architecture... "  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 13  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=$host_cpu"
77      fi
78    fi
79    AC_SUBST([CXX_CPU_SWITCH])
80    
81    mac=no
82    linux=no
83    case "$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 $have_windows = "1")
102    
103    AC_MSG_CHECKING([whether UNIX98 compatible])
104    AC_LANG_SAVE
105    AC_LANG_C
106    AC_TRY_RUN([
107    #ifndef _GNU_SOURCE
108    #define _GNU_SOURCE 1
109    #endif
110    #include <features.h>
111    void main(void) {
112    #if _XOPEN_SOURCE >= 500
113    exit(0); /* UNIX98 compatible */
114    #else
115    exit(-1); /* not UNIX98 compatible */
116    #endif
117    }
118    ],
119    have_unix98="yes",
120    have_unix98="no",
121    have_unix98="no"
122    )
123    AC_LANG_RESTORE
124    AC_MSG_RESULT([$have_unix98])
125    if test "$have_unix98" = "no" -a "have_windows" = "0"; then
126        if test "x$HAVE_UNIX98" = "x"; then
127            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 $have_alsa = "1"; then
271        config_have_alsa="yes"
272    fi
273    
274    # JACK
275    AC_ARG_ENABLE(jack-driver,
276      [  --disable-jack-driver
277                              Disable support for the Jack Audio Connection Kit
278                              (JACK).],
279      [config_jack_driver="$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
295        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
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, lv2core, config_have_lv2="yes", config_have_lv2="no")
516    if test $config_have_lv2 = "no"; then
517        AC_CHECK_HEADER(lv2.h, config_have_lv2="yes", config_have_lv2="no")
518    fi
519    AM_CONDITIONAL(HAVE_LV2, test $config_have_lv2 = "yes")
520    
521    # VST
522    AC_ARG_ENABLE(vstsdk-dir,
523      [  --enable-vstsdk-dir
524                              Directory where the VST SDK is located.
525                              This automatically enables the compilation
526                              of the VST plugin.],
527      [VSTSDK_DIR="${enableval}"],
528      [VSTSDK_DIR=]
529    )
530    AC_SUBST(VSTSDK_DIR)
531    AM_CONDITIONAL(HAVE_VST, test "x$VSTSDK_DIR" != "x")
532    config_have_vst="no"
533    if test "x$VSTSDK_DIR" != "x"; then
534        config_have_vst="yes"
535    fi
536    
537    # AU
538    AC_CHECK_HEADERS(AudioUnit/AudioUnit.h,
539            config_have_au="yes",
540            config_have_au="no")
541    AM_CONDITIONAL(HAVE_AU, test $config_have_au = "yes")
542    AM_CONDITIONAL(HAVE_AUFLAGS, test "$AUFLAGS" != "")
543    
544    if test $config_have_au = "yes" ; then
545        if test "x$DEVELOPER_EXTRAS_DIR" = "x" ; then
546            if test -d /Developer/Extras ; then
547                DEVELOPER_EXTRAS_DIR=/Developer/Extras
548            else      
549                DEVELOPER_EXTRAS_DIR=/Developer/Examples
550            fi
551        fi
552        AC_SUBST(DEVELOPER_EXTRAS_DIR)
553    fi
554    
555    # have we found at least one MIDI input and one audio output driver ?
556    if test "$have_midi_input_driver" = "false"; then
557        echo "No supported MIDI input system found!"
558        echo "Sorry, LinuxSampler only supports the following MIDI drivers at the moment:"
559        echo "ALSA, JACK, MIDIShare, CoreMIDI, MME."
560        echo "If you think you have one of those available on your system, make sure you"
561        echo "also have the respective development (header) files installed."
562        exit -1;
563    fi
564    if test "$have_audio_output_driver" = "false"; then
565        echo "No supported audio output system found!"
566        echo "Sorry, LinuxSampler only supports ALSA, JACK, ARTS and ASIO as audio output"
567        echo "driver at the moment!"
568        exit -1;
569    fi
570    
571    
572    
573    ###########################################################################
574    # Checks for various DLL libraries
575    
576    # Check presence of libgig
577    libgig_version="3.3.0"
578    PKG_CHECK_MODULES(GIG, gig >= $libgig_version, HAVE_GIG=true, HAVE_GIG=false)
579    if test "$HAVE_GIG" = "false"; then
580        echo "Required libgig version not found!"
581        echo "You need to have libgig version ${libgig_version} installed!"
582        exit -1;
583    else
584        echo "yes, found libgig $libgig_version"
585    fi
586    AC_SUBST(GIG_CFLAGS)
587    AC_SUBST(GIG_LIBS)
588    
589    # SF2 Engine (requires libgig)
590    AC_ARG_ENABLE(sf2-engine,
591      [  --disable-sf2-engine
592                              Disable compilation of the SF2 engine.
593                              You need to have libgig installed.],
594      [config_sf2_engine="$enableval"],
595      [config_sf2_engine="yes"]
596    )
597    HAVE_SF2=0;
598    if test "$config_sf2_engine" = "yes"; then
599        HAVE_SF2=1
600    else
601        echo "SF2 engine disabled by configure script parameter"
602    fi
603    AM_CONDITIONAL(HAVE_SF2, test $HAVE_SF2 = 1)
604    AC_DEFINE_UNQUOTED(HAVE_SF2,$HAVE_SF2,[Define to 1 if you want SF2 engine and have libsf2 installed.])
605    config_have_sf2="no"
606    if test $HAVE_SF2 = "1"; then
607        config_have_sf2="yes"
608    fi
609    
610    # Check presence of libsndfile
611    libsndfile_version="1.0"
612    PKG_CHECK_MODULES(SNDFILE, sndfile >= $libsndfile_version, HAVE_SNDFILE=true, HAVE_SNDFILE=false)
613    if test "$HAVE_SNDFILE" = "false"; then
614        echo "Required libsndfile version not found!"
615        echo "You need to have libsndfile version ${libsndfile_version} installed!"
616        exit -1;
617    else
618        echo "yes, found libsndfile $libsndfile_version"
619    fi
620    AC_SUBST(SNDFILE_CFLAGS)
621    AC_SUBST(SNDFILE_LIBS)
622    
623    # Check for Vorbis support in libsndfile
624    linuxsampler_save_CFLAGS=$CFLAGS
625    CFLAGS="$SNDFILE_CFLAGS $CFLAGS"
626    AC_CHECK_DECLS([SF_FORMAT_VORBIS], [], [] ,[[#include <sndfile.h>]])
627    
628    # Check for loop functionality in libsndfile
629    AC_CHECK_MEMBERS([SF_INSTRUMENT.loops],,
630                     [AC_MSG_WARN([Your version of libsndfile does not support
631        reading of loop information. LinuxSampler will not be able to
632        extract loop information from sample files.])],
633                     [#include <sndfile.h>])
634    CFLAGS=$linuxsampler_save_CFLAGS
635    
636    # Instruments DB feature (requires SQLite 3.3)
637    AC_ARG_ENABLE(instruments-db,
638      [  --disable-instruments-db
639                              Disable compilation of the sampler's instruments
640                              database feature. You need to have SQLite 3.3
641                              or younger installed for this feature.],
642      [config_instruments_db="$enableval"],
643      [config_instruments_db="yes"]
644    )
645    HAVE_SQLITE3=0;
646    if test "$config_instruments_db" = "yes"; then
647        # Check presence of sqlite3
648        sqlite_version="3.3"
649        PKG_CHECK_MODULES(SQLITE3, sqlite3 >= $sqlite_version, HAVE_SQLITE3=true, HAVE_SQLITE3=false)
650        AC_SUBST(SQLITE3_LIBS)
651        AC_SUBST(SQLITE3_CFLAGS)
652        if test $HAVE_SQLITE3 = false; then
653            HAVE_SQLITE3=0
654            config_instruments_db="no"
655            echo "*** Required sqlite version not found!"
656            echo "*** You need to have sqlite version ${sqlite_version} or higher"
657            echo "*** for instruments database support to be enabled."
658            echo "*** Support for instruments DB will be disabled!"
659        else
660            HAVE_SQLITE3=1
661        fi
662    else
663        echo "Instruments DB feature disabled by configure script parameter"
664    fi
665    AM_CONDITIONAL(HAVE_SQLITE3, test $HAVE_SQLITE3 = 1)
666    AC_DEFINE_UNQUOTED(HAVE_SQLITE3,$HAVE_SQLITE3,[Define to 1 if you want the instruments DB feature and have SQLITE3 installed.])
667    
668    
669    
670    ###########################################################################
671    # Handle Configuration Options
672    
673    # TODO: should we use AC_ARG_VAR(variable, description) instead?
674    
675    AC_ARG_ENABLE(asm,
676      [  --disable-asm
677                              Enable hand-crafted assembly optimizations
678                              (default=on). LinuxSampler provides CPU specific
679                              assembly optimizations. This is currently limited
680                              to just enter a fast (denormal) FPU mode on x86
681                              platforms. There are currently no synthesis core
682                              assembly optimizations anymore since LS 0.4.0],
683      [config_asm="$enableval"],
684      [config_asm="yes"]
685    )
686    if test "$config_asm" = "yes"; then
687      AC_DEFINE_UNQUOTED(CONFIG_ASM, 1, [Define to 1 if you want to enable asm optimizations.])
688    fi
689    
690    AC_ARG_ENABLE(dev-mode,
691      [  --enable-dev-mode
692                              Enable development mode (default=off). In that mode
693                              we do some extra sanity checks here and there.
694                              This helps to spot possible problems, but reduces
695                              efficiency a bit],
696      [config_dev_mode="$enableval"],
697      [config_dev_mode="no"]
698    )
699    if test "$config_dev_mode" = "yes"; then
700      AC_DEFINE_UNQUOTED(CONFIG_DEVMODE, 1, [Define to 1 if you want to enable development mode.])
701    fi
702    
703    AC_ARG_ENABLE(debug-level,
704      [  --enable-debug-level
705                              Specify verbosity of console messages (default=1).
706                              The higher the value, the higher will be verbosity.
707                              A value of 0 means no console output at all.
708                              There's not really an upper limit but the usual
709                              level of all messages is currently somewhere less
710                              than 10.],
711      [config_debug_level="${enableval}"],
712      [config_debug_level="1"]
713    )
714    AC_DEFINE_UNQUOTED(CONFIG_DEBUG_LEVEL, $config_debug_level, [Define console verbosity.])
715    
716    AC_ARG_ENABLE(rt-exceptions,
717      [  --enable-rt-exceptions
718                              Enable exceptions in the realtime thread
719                              (default=no). If this is enabled, exceptions will
720                              be thrown on critical errors in the realtime
721                              context as well. Otherwise if disabled
722                              segmentation faults will be forced by the
723                              application on critical errors.],
724      [config_rt_exceptions="$enableval"],
725      [config_rt_exceptions="no"]
726    )
727    if test "$config_rt_exceptions" = "yes"; then
728      AC_DEFINE_UNQUOTED(CONFIG_RT_EXCEPTIONS, 1, [Define to 1 to allow exceptions in the realtime context.])
729    fi
730    
731    config_pthread_testcancel="$mac"
732    AC_ARG_ENABLE(pthread-testcancel,
733      [  --enable-pthread-testcancel
734                              Enable pthread_testcancel() calls and avoid
735                              asynchronous cancel of pthreads (default=yes
736                              for Mac targets, no otherwise).],
737      [config_pthread_testcancel="$enableval"],
738      []
739    )
740    if test "$config_pthread_testcancel" = "yes"; then
741      AC_DEFINE_UNQUOTED(CONFIG_PTHREAD_TESTCANCEL, 1, [Define to 1 to enable pthread_testcancel() calls.])
742    fi
743    
744    AC_ARG_ENABLE(preload-samples,
745      [  --enable-preload-samples
746                              Due to seeking and latency issues with hard drives
747                              we have to cache a small part of samples' head in
748                              RAM (default=32768). The higher this value the
749                              more memory will be occupied for each sample, but
750                              the safer this will be in regards of possible
751                              droputs. A 'good' value depends on the running
752                              system and usage dependant factors.],
753      [config_preload_samples="${enableval}"],
754      [config_preload_samples="32768"]
755    )
756    AC_DEFINE_UNQUOTED(CONFIG_PRELOAD_SAMPLES, $config_preload_samples, [Define amount of sample points to be cached in RAM.])
757    
758    AC_ARG_ENABLE(max-pitch,
759      [  --enable-max-pitch
760                              Specify the maximum allowed pitch value in octaves
761                              (default=4). To lower memory usage you might want
762                              set a smaller value.],
763      [config_max_pitch="${enableval}"],
764      [config_max_pitch="4"]
765    )
766    AC_DEFINE_UNQUOTED(CONFIG_MAX_PITCH, $config_max_pitch, [Define max. allowed pitch.])
767    
768    AC_ARG_ENABLE(max-events,
769      [  --enable-max-events
770                              Specify the maximum allowed amount of events to be
771                              processed per fragment (default=1024).],
772      [config_max_events="${enableval}"],
773      [config_max_events="1024"]
774    )
775    AC_DEFINE_UNQUOTED(CONFIG_MAX_EVENTS_PER_FRAGMENT, $config_max_events, [Define max. allowed events per fragment.])
776    
777    AC_ARG_ENABLE(eg-bottom,
778      [  --enable-eg-bottom
779                              Bottom limit of envelope generators
780                              (default=0.001). Certain kinds of curve types like
781                              exponential curves converge against 0 but never
782                              reach 0. So we have to define a certain low value
783                              after which we should consider all smaller values
784                              to be 'almost zero'. The smaller this value, the
785                              longer will voices survive in EG's release stage
786                              and thus waste voices. If this value is too high
787                              will cause click sounds though.],
788      [config_eg_bottom="${enableval}"],
789      [config_eg_bottom="0.001"]
790    )
791    AC_DEFINE_UNQUOTED(CONFIG_EG_BOTTOM, $config_eg_bottom, [Define bottom limit of envelopes.])
792    
793    AC_ARG_ENABLE(eg-min-release-time,
794      [  --enable-eg-min-release-time
795                              Specify the lowest allowed release time in seconds
796                              (default=0.0025). This value will also be used to
797                              ramp down voices on voice stealing. This value
798                              should always be less than the period time of the
799                              used audio driver, as in case of voice stealing
800                              the killed voice needs to be completely ramped
801                              down in the same fragment.],
802      [config_eg_min_release_time="${enableval}"],
803      [config_eg_min_release_time="0.0025"]
804    )
805    AC_DEFINE_UNQUOTED(CONFIG_EG_MIN_RELEASE_TIME, $config_eg_min_release_time, [Define min. release time.])
806    
807    AC_ARG_ENABLE(refill-streams,
808      [  --enable-refill-streams
809                              Number of streams that should be refilled in each
810                              disk thread cycle (default=4).],
811      [config_refill_streams="${enableval}"],
812      [config_refill_streams="4"]
813    )
814    AC_DEFINE_UNQUOTED(CONFIG_REFILL_STREAMS_PER_RUN, $config_refill_streams, [Define amount of streams to be refilled per cycle.])
815    
816    AC_ARG_ENABLE(stream-min-refill,
817      [  --enable-stream-min-refill
818                              Minimum refill size for disk streams (default=1024).
819                              The disk thread will go to sleep for a while if no
820                              stream had to be refilled more than this value in
821                              a disk thread cycle.],
822      [config_stream_min_refill="${enableval}"],
823      [config_stream_min_refill="1024"]
824    )
825    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MIN_REFILL_SIZE, $config_stream_min_refill, [Define min. stream refill size.])
826    
827    AC_ARG_ENABLE(stream-max-refill,
828      [  --enable-stream-max-refill
829                              Maximum refill size for disk streams
830                              (default=65536). The disk thread will refill
831                              each stream only by a size of this value per
832                              disk thread cycle.],
833      [config_stream_max_refill="${enableval}"],
834      [config_stream_max_refill="65536"]
835    )
836    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MAX_REFILL_SIZE, $config_stream_max_refill, [Define max. stream refill size.])
837    
838    AC_ARG_ENABLE(stream-size,
839      [  --enable-stream-size
840                              Size of each stream's ring buffer in sample points
841                              (default=262144).],
842      [config_stream_size="${enableval}"],
843      [config_stream_size="262144"]
844    )
845    AC_DEFINE_UNQUOTED(CONFIG_STREAM_BUFFER_SIZE, $config_stream_size, [Define each stream's ring buffer size.])
846    
847    AC_ARG_ENABLE(max-streams,
848      [  --enable-max-streams
849                              Initial maximum amount of disk streams
850                              (default=90). This value can be changed at
851                              runtime. It should always be higher than the
852                              maximum amount of voices.],
853      [config_max_streams="${enableval}"],
854      [config_max_streams="90"]
855    )
856    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_MAX_STREAMS, $config_max_streams, [Define initial max. streams.])
857    
858    AC_ARG_ENABLE(max-voices,
859      [  --enable-max-voices
860                              Initial maximum amount of voices (default=64).
861                              This value can be changed at runtime. It should
862                              always be lower than the maximum amount of disk
863                              streams.],
864      [config_max_voices="${enableval}"],
865      [config_max_voices="64"]
866    )
867    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_MAX_VOICES, $config_max_voices, [Define initial max. voices.])
868    
869    AC_ARG_ENABLE(subfragment-size,
870      [  --enable-subfragment-size
871                              Every audio fragment will be splitted into
872                              subfragments. Where each subfragment renders
873                              audio with constant synthesis parameters. This is
874                              done for efficiency reasons. This parameter
875                              defines the default size of a subfragment in
876                              sample points. A large value means less CPU time
877                              whereas a low value means better audio quality
878                              (default=32).],
879      [config_subfragment_size="${enableval}"],
880      [config_subfragment_size="32"]
881    )
882    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_SUBFRAGMENT_SIZE, $config_subfragment_size, [Define default subfragment size (in sample points).])
883    
884    AC_ARG_ENABLE(global-attenuation-default,
885      [  --enable-global-attenuation-default
886                              To prevent clipping all samples will be lowered
887                              in amplitude by this given default factor (can
888                              be overridden at runtime).
889                              (default=0.35)],
890      [config_global_attenuation_default="${enableval}"],
891      [config_global_attenuation_default="0.35"]
892    )
893    AC_DEFINE_UNQUOTED(CONFIG_GLOBAL_ATTENUATION_DEFAULT, $config_global_attenuation_default, [Define default global volume attenuation (as floating point factor).])
894    
895    AC_ARG_ENABLE(voice-steal-algo,
896      [  --enable-voice-steal-algo
897                              Voice stealing algorithm to be used. Currently
898                              available options:
899                                none:
900                                  Disable voice stealing completely.
901                                oldestvoiceonkey (default):
902                                  Try to kill a voice on the same key first,
903                                  if no success, proceed with the oldest key.
904                                oldestkey:
905                                  Try to kill a voice from the oldest active
906                                  key.],
907      [ if test ! "(" "${enableval}" = "none" \
908                  -o "${enableval}" = "oldestvoiceonkey" \
909                  -o "${enableval}" = "oldestkey" ")" ; then
910          AC_MSG_ERROR([Unknown voice stealing algorithm for parameter --enable-voice-steal-algo])
911        else
912          config_voice_steal_algo="${enableval}"
913        fi
914      ],
915      [config_voice_steal_algo="oldestvoiceonkey"]
916    )
917    AC_DEFINE_UNQUOTED(CONFIG_VOICE_STEAL_ALGO, voice_steal_algo_${config_voice_steal_algo}, [Define voice stealing algorithm to be used.])
918    
919    AC_ARG_ENABLE(sysex-buffer-size,
920      [  --enable-sysex-buffer-size
921                              System Exclusive Message buffer size in kB
922                              (default=2048).],
923      [config_sysex_buffer_size="${enableval}"],
924      [config_sysex_buffer_size="2048"]
925    )
926    AC_DEFINE_UNQUOTED(CONFIG_SYSEX_BUFFER_SIZE, $config_sysex_buffer_size, [Define SysEx buffer size.])
927    
928    AC_ARG_ENABLE(force-filter,
929      [  --enable-force-filter
930                              If enabled will force filter to be used even if
931                              no usage was define in instrument patch files.
932                              (default=no).],
933      [config_force_filter="$enableval"],
934      [config_force_filter="no"]
935    )
936    if test "$config_force_filter" = "yes"; then
937      AC_DEFINE_UNQUOTED(CONFIG_FORCE_FILTER, 1, [Define to 1 to force filter usage.])
938    fi
939    
940    AC_ARG_ENABLE(filter-cutoff-min,
941      [  --enable-filter-cutoff-min
942                              Minimum filter cutoff frequency in Hz
943                              (default=100.0).],
944      [config_filter_cutoff_min="${enableval}"],
945      [config_filter_cutoff_min="100.0"]
946    )
947    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MIN, ${config_filter_cutoff_min}f, [Define min. filter cutoff frequency.])
948    
949    AC_ARG_ENABLE(filter-cutoff-max,
950      [  --enable-filter-cutoff-max
951                              Maximum filter cutoff frequency in Hz
952                              (default=10000.0).],
953      [config_filter_cutoff_max="${enableval}"],
954      [config_filter_cutoff_max="10000.0"]
955    )
956    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MAX, ${config_filter_cutoff_max}f, [Define max. filter cutoff frequency.])
957    
958    AC_ARG_ENABLE(override-cutoff-ctrl,
959      [  --enable-override-cutoff-ctrl
960                              Override filter cutoff MIDI controller (default=no).
961                              Note: you have to define the MIDI controller number
962                              here, it's not a boolean parameter type! If this
963                              option is used, controller number given by
964                              instrument patch will be ignored and instead this
965                              supplied value will be used.],
966      [config_override_cutoff_ctrl="${enableval}"],
967      [config_override_cutoff_ctrl="no"]
968    )
969    if test ! "$config_override_cutoff_ctrl" = "no"; then
970      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_CUTOFF_CTRL, $config_override_cutoff_ctrl, [Define to a MIDI controller number to override cutoff control.])
971    fi
972    
973    AC_ARG_ENABLE(override-resonance-ctrl,
974      [  --enable-override-resonance-ctrl
975                              Override filter resonance MIDI controller
976                              (default=no). Note: you have to define the MIDI
977                              controller number here, it's not a boolean
978                              parameter type! If this option is used, controller
979                              number given by instrument patch will be ignored
980                              and instead this supplied value will be used.],
981      [config_override_resonance_ctrl="${enableval}"],
982      [config_override_resonance_ctrl="no"]
983    )
984    if test ! "$config_override_resonance_ctrl" = "no"; then
985      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_RESONANCE_CTRL, $config_override_resonance_ctrl, [Define to a MIDI controller number to override resonance control.])
986    fi
987    
988    AC_ARG_ENABLE(override-filter-type,
989      [  --enable-override-filter-type
990                              Override filter type (default=no). Options:
991                              hp: for highpass
992                              bp: for bandpass
993                              br: for bandreject
994                              lp: for lowpass
995                              lpt: for lowpass turbo],
996      [ if   test "${enableval}" = "hp" ; then
997           config_override_filter_type="::gig::vcf_type_highpass"
998        elif test "${enableval}" = "bp" ; then
999           config_override_filter_type="::gig::vcf_type_bandpass"
1000        elif test "${enableval}" = "br" ; then
1001           config_override_filter_type="::gig::vcf_type_bandreject"
1002        elif test "${enableval}" = "lp" ; then
1003           config_override_filter_type="::gig::vcf_type_lowpass"
1004        elif test "${enableval}" = "lpt" ; then
1005           config_override_filter_type="::gig::vcf_type_lowpassturbo"
1006        elif test ! "${enableval}" = "no"; then
1007           AC_MSG_ERROR([Unknown filter type for parameter --enable-override-filter-type])
1008        fi
1009      ],
1010      [config_override_filter_type="no"]
1011    )
1012    if test ! "$config_override_filter_type" = "no"; then
1013      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_FILTER_TYPE, $config_override_filter_type, [Define to a filter type to always force that filter type.])
1014    fi
1015    
1016    AC_ARG_ENABLE(gs-checksum,
1017      [  --enable-gs-checksum
1018                              Enable Roland General Synth SysEx checksum check
1019                              (default=no). If this is enabled, all GS SysEx
1020                              messages which do not provide a correct checksum
1021                              will be ignored. This is disabled by default as
1022                              not all devices honor GS checksums.],
1023      [config_assert_gs_sysex_checksum="$enableval"],
1024      [config_assert_gs_sysex_checksum="no"]
1025    )
1026    if test "config_assert_gs_sysex_checksum" = "yes"; then
1027      AC_DEFINE_UNQUOTED(CONFIG_ASSERT_GS_SYSEX_CHECKSUM, 1, [Define to 1 if you want to enable GS SysEx check.])
1028    fi
1029    
1030    AC_ARG_ENABLE(portamento-time-min,
1031      [  --enable-portamento-time-min
1032                              Minimum Portamento time in seconds
1033                              (default=0.1).],
1034      [config_portamento_time_min="${enableval}"],
1035      [config_portamento_time_min="0.1"]
1036    )
1037    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MIN, $config_portamento_time_min, [Define min. portamento time.])
1038    
1039    AC_ARG_ENABLE(portamento-time-max,
1040      [  --enable-portamento-time-max
1041                              Maximum Portamento time in seconds
1042                              (default=32).],
1043      [config_portamento_time_max="${enableval}"],
1044      [config_portamento_time_max="32"]
1045    )
1046    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MAX, $config_portamento_time_max, [Define max. portamento time.])
1047    
1048    AC_ARG_ENABLE(portamento-time-default,
1049      [  --enable-portamento-time-default
1050                              Default Portamento time in seconds
1051                              (default=1).],
1052      [config_portamento_time_default="${enableval}"],
1053      [config_portamento_time_default="1"]
1054    )
1055    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_DEFAULT, $config_portamento_time_default, [Define default portamento time.])
1056    
1057    AC_ARG_ENABLE(signed-triang-algo,
1058      [  --enable-signed-triang-algo
1059                              Signed triangular wave algorithm to be used (e.g. for LFOs).
1060                              Currently available options:
1061                                intmath:
1062                                  Uses integer math without any branch will then be
1063                                  converted to floating point value for each sample point.
1064                                  This int->float conversion might hurt on some systems.
1065                                intmathabs:
1066                                  Similar to intmath but uses abs() function.
1067                                  Depending on compiler and platrofm this could
1068                                  perform better than integer math as it avoids
1069                                  an extra integer multiply instruction.
1070                                diharmonic:
1071                                  The triangular wave will be approximated by adding two
1072                                  sinusoidials. This solution might especially hurt on
1073                                  systems with weak floating point unit.
1074                                benchmark (default):
1075                                  This is not an algorithm. Use this option if the
1076                                  appropriate algorithm should be automatically
1077                                  chosen by the configure script by performing a
1078                                  benchmark between the algorithms mentioned above.
1079                                  This will NOT work for cross compilation!],
1080      [ if test ! "(" "${enableval}" = "intmath" \
1081                  -o "${enableval}" = "intmathabs" \
1082                  -o "${enableval}" = "diharmonic" ")" ; then
1083          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-signed-triang-algo])
1084        else
1085          config_signed_triang_algo="${enableval}"
1086        fi
1087      ],
1088      [config_signed_triang_algo="benchmark"]
1089    )
1090    
1091    AC_ARG_ENABLE(unsigned-triang-algo,
1092      [  --enable-unsigned-triang-algo
1093                              Unsigned triangular wave algorithm to be used (e.g. for LFOs).
1094                              Currently available options:
1095                                intmath:
1096                                  Uses integer math without any branch will then be
1097                                  converted to floating point value for each sample point.
1098                                  This int->float conversion might hurt on some systems.
1099                                intmathabs:
1100                                  Similar to intmath but uses abs() function.
1101                                  Depending on compiler and platrofm this could
1102                                  perform better than integer math as it avoids
1103                                  an extra integer multiply instruction.
1104                                diharmonic:
1105                                  The triangular wave will be approximated by adding two
1106                                  sinusoidials. This solution might especially hurt on
1107                                  systems with weak floating point unit.
1108                                benchmark (default):
1109                                  This is not an algorithm. Use this option if the
1110                                  appropriate algorithm should be automatically
1111                                  chosen by the configure script by performing a
1112                                  benchmark between the algorithms mentioned above.
1113                                  This will NOT work for cross compilation!],
1114      [ if test ! "(" "${enableval}" = "intmath" \
1115                  -o "${enableval}" = "intmathabs" \
1116                  -o "${enableval}" = "diharmonic" ")" ; then
1117          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-unsigned-triang-algo])
1118        else
1119          config_unsigned_triang_algo="${enableval}"
1120        fi
1121      ],
1122      [config_unsigned_triang_algo="benchmark"]
1123    )
1124    
1125    AC_ARG_ENABLE(process-muted-channels,
1126      [  --enable-process-muted-channels
1127                              Enable processing of muted channels (default=no).
1128                              In that mode all MIDI events in the muted channels
1129                              will be processed. This will provide information
1130                              about the active voices in the muted channels and
1131                              will not discard notes, triggered in mute mode,
1132                              when the channel is unmuted. But also will reduce
1133                              the efficiency.],
1134      [config_process_muted_channels="$enableval"],
1135      [config_process_muted_channels="no"]
1136    )
1137    if test "$config_process_muted_channels" = "yes"; then
1138      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_MUTED_CHANNELS, 1, [Define to 1 if you want to enable processing of muted channels.])
1139    fi
1140    
1141    AC_ARG_ENABLE(process-all-notes-off,
1142      [  --disable-process-all-notes-off
1143                              Disable interpretation of All-Notes-Off MIDI
1144                              messages (default=on). By default LS will release
1145                              all voices whenever it receives an All-Notes-Off
1146                              MIDI message. You can disable this behavior, so
1147                              that LS simply ignores such messages.],
1148      [config_process_all_notes_off="$enableval"],
1149      [config_process_all_notes_off="yes"]
1150    )
1151    if test "$config_process_all_notes_off" = "yes"; then
1152      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_ALL_NOTES_OFF, 1, [Define to 1 if you want to enable processing of All-Notes-Off MIDI messages.])
1153    fi
1154    
1155    AC_ARG_ENABLE(interpolate-volume,
1156      [  --disable-interpolate-volume
1157                              Disable interpolation of volume modulation
1158                              (default=on). With this enabled, the volume changes
1159                              generated by for example the envelope generator
1160                              will be smoother, minimizing the risk for audio
1161                              clicks. Disable it to reduce CPU usage.],
1162      [config_interpolate_volume="$enableval"],
1163      [config_interpolate_volume="yes"]
1164    )
1165    if test "$config_interpolate_volume" = "yes"; then
1166      AC_DEFINE_UNQUOTED(CONFIG_INTERPOLATE_VOLUME, 1, [Define to 1 if you want to enable interpolation of volume modulation.])
1167    fi
1168    
1169    AC_ARG_ENABLE(master-volume-sysex-by-port,
1170      [  --enable-master-volume-sysex-by-port
1171                              Whether global volume sysex message should be
1172                              applied globally to the whole sampler or only to
1173                              the sampler channels connected to the same MIDI
1174                              input port on which the sysex message arrived on.
1175                              By default global volume sysex messages apply
1176                              globally to the whole sampler, since many MIDI
1177                              devices behave that way.],
1178      [config_master_volume_sysex_by_port="$enableval"],
1179      [config_master_volume_sysex_by_port="no"]
1180    )
1181    if test "$config_master_volume_sysex_by_port" = "yes"; then
1182      AC_DEFINE_UNQUOTED(CONFIG_MASTER_VOLUME_SYSEX_BY_PORT, 1, [Define to 1 if you want global volume sysex message only be applied to the respective MIDI port.])
1183    fi
1184    
1185    AC_ARG_ENABLE(plugin-dir,
1186      [  --enable-plugin-dir
1187                              Directory where the sampler shall look for potential plugins,
1188                              that is 3rd party shared libraries that should be loaded by
1189                              the sampler on startup. By default the sampler will search
1190                              for plugins in the subdirectory "plugins" below its own
1191                              library directory.
1192                              (i.e. /usr/local/lib/linuxsampler/plugins)],
1193      [config_plugin_dir="${enableval}"],
1194      [config_plugin_dir="${libdir}/linuxsampler/plugins"]
1195    )
1196    AC_SUBST(config_plugin_dir)
1197    
1198    AC_ARG_ENABLE(default-instruments-db-location,
1199      [  --enable-default-instruments-db-location
1200                              Only when instruments DB feature is enabled: file name
1201                              which shall be taken as default location of the
1202                              instruments DB file. This location can still be
1203                              overridden at runtime with a command line switch.
1204                              (default: /var/lib/linuxsampler/instruments.db)],
1205      [config_default_instruments_db_file="${enableval}"],
1206      [config_default_instruments_db_file="/var/lib/linuxsampler/instruments.db"]
1207    )
1208    AC_DEFINE_UNQUOTED(
1209        CONFIG_DEFAULT_INSTRUMENTS_DB_LOCATION,
1210        "$config_default_instruments_db_file",
1211        [Only when instruments DB feature is enabled: default location of the DB file.]
1212    )
1213    AC_SUBST(config_default_instruments_db_file)
1214    
1215    
1216    ###########################################################################
1217    # Automatic Benchmarks (to detect the best algorithms for the system)
1218    
1219    AC_LANG_SAVE
1220    
1221    if test "$config_signed_triang_algo" = "benchmark"; then
1222        echo -n "benchmarking for the best (signed) triangular oscillator algorithm... "
1223        AC_LANG_CPLUSPLUS
1224        AC_TRY_RUN([
1225                #define SIGNED 1
1226                #define SILENT 1
1227                #include "${srcdir}/benchmarks/triang.cpp"
1228            ],
1229            triang_signed=0,
1230            triang_signed=$?,
1231            triang_signed=0
1232        )
1233        if test "$triang_signed" = "2"; then
1234            config_signed_triang_algo="intmath"
1235            echo "integer math"
1236        elif test "$triang_signed" = "3"; then
1237            config_signed_triang_algo="diharmonic"
1238            echo "di harmonics"
1239        elif test "$triang_signed" = "5"; then
1240            config_signed_triang_algo="intmathabs"
1241            echo "integer math using abs()"
1242        else
1243            echo "Benchmark of signed triangular wave algorithms failed!"
1244            echo "Maybe you are doing cross compilation? In that case you have to select"
1245            echo "an algorithm manually with './configure --enable-signed-triang-algo=...'"
1246            echo "Call './configure --help' for further information or read configure.in."
1247            exit -1;
1248        fi
1249    else
1250        case "$config_signed_triang_algo" in
1251            intmath)
1252                triang_signed=2 ;;
1253            diharmonic)
1254                triang_signed=3 ;;
1255            intmathabs)
1256                triang_signed=5 ;;
1257        esac
1258    fi
1259    AC_DEFINE_UNQUOTED(CONFIG_SIGNED_TRIANG_ALGO, ${triang_signed}, [Define signed triangular wave algorithm to be used.])
1260    
1261    if test "$config_unsigned_triang_algo" = "benchmark"; then
1262        echo -n "benchmarking for the best (unsigned) triangular oscillator algorithm... "
1263        AC_LANG_CPLUSPLUS
1264        AC_TRY_RUN([
1265                #define SIGNED 0
1266                #define SILENT 1
1267                #include "${srcdir}/benchmarks/triang.cpp"
1268            ],
1269            triang_unsigned=0,
1270            triang_unsigned=$?,
1271            triang_unsigned=0
1272        )
1273        if test "$triang_unsigned" = "2"; then
1274            config_unsigned_triang_algo="intmath"
1275            echo "integer math"
1276        elif test "$triang_unsigned" = "3"; then
1277            config_unsigned_triang_algo="diharmonic"
1278            echo "di harmonics"
1279        elif test "$triang_unsigned" = "5"; then
1280            config_unsigned_triang_algo="intmathabs"
1281            echo "integer math using abs()"
1282        else
1283            echo "Benchmark of unsigned triangular wave algorithms failed!"
1284            echo "Maybe you are doing cross compilation? In that case you have to select"
1285            echo "an algorithm manually with './configure --enable-unsigned-triang-algo=...'"
1286            echo "Call './configure --help' for further information or read configure.in."
1287            exit -1;
1288        fi
1289    else
1290        case "$config_unsigned_triang_algo" in
1291            intmath)
1292                triang_unsigned=2 ;;
1293            diharmonic)
1294                triang_unsigned=3 ;;
1295            intmathabs)
1296                triang_unsigned=5 ;;
1297        esac
1298    fi
1299    AC_DEFINE_UNQUOTED(CONFIG_UNSIGNED_TRIANG_ALGO, ${triang_unsigned}, [Define unsigned triangular wave algorithm to be used.])
1300    
1301    AC_LANG_RESTORE
1302    
1303    
1304    ###########################################################################
1305    # Create Build Files
1306    
1307  AM_CONFIG_HEADER(config.h)  AM_CONFIG_HEADER(config.h)
1308  AM_INIT_AUTOMAKE(linuxsampler, 0.1)  AM_INIT_AUTOMAKE(linuxsampler, "$LINUXSAMPLER_RELEASE_MAJOR.$LINUXSAMPLER_RELEASE_MINOR.$LINUXSAMPLER_RELEASE_BUILD")
1309    
1310  AC_LANG_CPLUSPLUS  AC_LANG_CPLUSPLUS
 AC_PROG_CXX  
 AM_PROG_LIBTOOL  
1311    
1312  AC_OUTPUT(Makefile src/Makefile)  # autoconf 2.59/libtool 1.5.12 bug? work-around. Without a check like
1313    # this, the dlfcn.h check in am_prog_libtool may fail.
1314    AC_CHECK_HEADER(stdlib.h)
1315    
1316    AC_OUTPUT( \
1317        Makefile \
1318        man/Makefile \
1319        man/linuxsampler.1 \
1320        src/Makefile \
1321        src/db/Makefile \
1322        src/network/Makefile \
1323        src/engines/Makefile \
1324        src/engines/gig/Makefile \
1325        src/engines/sf2/Makefile \
1326        src/engines/sfz/Makefile \
1327        src/engines/common/Makefile \
1328        src/effects/Makefile \
1329        src/common/Makefile \
1330        src/testcases/Makefile \
1331        src/drivers/Makefile \
1332        src/drivers/audio/Makefile \
1333        src/drivers/midi/Makefile \
1334        src/plugins/Makefile \
1335        src/hostplugins/Makefile \
1336        src/hostplugins/dssi/Makefile \
1337        src/hostplugins/lv2/Makefile \
1338        src/hostplugins/vst/Makefile \
1339        src/hostplugins/au/Makefile \
1340        linuxsampler.spec \
1341        debian/Makefile \
1342        Artwork/Makefile \
1343        scripts/Makefile \
1344        osx/Makefile \
1345        osx/linuxsampler.xcodeproj/Makefile \
1346        Documentation/Makefile \
1347        Documentation/Engines/Makefile \
1348        Documentation/Engines/gig/Makefile \
1349        linuxsampler.pc \
1350        Doxyfile \
1351    )
1352    
1353    # resolve all nested variables in '${config_plugin_dir}'
1354    # (merely for providing a human readable summary below)
1355    while test $config_plugin_dir != `eval echo ${config_plugin_dir}` ; do
1356            config_plugin_dir=`eval echo ${config_plugin_dir}`
1357    done
1358    
1359    
1360    ###########################################################################
1361    # Output All Configuration Options
1362    
1363    echo ""
1364    echo "#####################################################################"
1365    echo "# LinuxSampler Configuration                                        #"
1366    echo "#-------------------------------------------------------------------#"
1367    echo "# Release Version: ${LINUXSAMPLER_RELEASE_MAJOR}.${LINUXSAMPLER_RELEASE_MINOR}.${LINUXSAMPLER_RELEASE_BUILD}"
1368    echo "# LSCP Version: ${LSCP_RELEASE_MAJOR}.${LSCP_RELEASE_MINOR}"
1369    echo "#-------------------------------------------------------------------"
1370    echo "# Assembly Optimizations: ${config_asm}"
1371    echo "# Development Mode: ${config_dev_mode}"
1372    echo "# Debug Level: ${config_debug_level}"
1373    echo "# Use Exceptions in RT Context: ${config_rt_exceptions}"
1374    echo "# Preload Samples: ${config_preload_samples}"
1375    echo "# Maximum Pitch: ${config_max_pitch} (octaves)"
1376    echo "# Maximum Events: ${config_max_events}"
1377    echo "# Envelope Bottom Level: ${config_eg_bottom} (linear)"
1378    echo "# Envelope Minimum Release Time: ${config_eg_min_release_time} s"
1379    echo "# Streams to be refilled per Disk Thread Cycle: ${config_refill_streams}"
1380    echo "# Minimum Stream Refill Size: ${config_stream_min_refill}"
1381    echo "# Maximum Stream Refill Size: ${config_stream_max_refill}"
1382    echo "# Stream Size: ${config_stream_size}"
1383    echo "# Default Maximum Disk Streams: ${config_max_streams}"
1384    echo "# Default Maximum Voices: ${config_max_voices}"
1385    echo "# Default Subfragment Size: ${config_subfragment_size}"
1386    echo "# Default Global Volume Attenuation: ${config_global_attenuation_default}"
1387    echo "# Voice Stealing Algorithm: ${config_voice_steal_algo}"
1388    echo "# Signed Triangular Oscillator Algorithm: ${config_signed_triang_algo}"
1389    echo "# Unsigned Triangular Oscillator Algorithm: ${config_unsigned_triang_algo}"
1390    echo "# SysEx Buffer Size: ${config_sysex_buffer_size} Byte"
1391    echo "# Min. Portamento Time: ${config_portamento_time_min} s"
1392    echo "# Max. Portamento Time: ${config_portamento_time_max} s"
1393    echo "# Default Portamento Time: ${config_portamento_time_default} s"
1394    echo "# Force Filter Usage: ${config_force_filter}"
1395    echo "# Filter Cutoff Minimum: ${config_filter_cutoff_min} Hz"
1396    echo "# Filter Cutoff Maximum: ${config_filter_cutoff_max} Hz"
1397    echo "# Override Filter Cutoff Controller: ${config_override_cutoff_ctrl}"
1398    echo "# Override Filter Resonance Controller: ${config_override_resonance_ctrl}"
1399    echo "# Override Filter Type: ${config_override_filter_type}"
1400    echo "# Assert GS SysEx Checksum: ${config_assert_gs_sysex_checksum}"
1401    echo "# Process Muted Channels: ${config_process_muted_channels}"
1402    echo "# Process All-Notes-Off MIDI message: ${config_process_all_notes_off}"
1403    echo "# Apply global volume SysEx by MIDI port: ${config_master_volume_sysex_by_port}"
1404    echo "# Interpolate Volume: ${config_interpolate_volume}"
1405    echo "# Instruments database support: ${config_instruments_db}"
1406    if test "$config_instruments_db" = "yes"; then
1407    echo "# Instruments DB default location: ${config_default_instruments_db_file}"
1408    fi
1409    echo "# Plugin Path: ${config_plugin_dir}"
1410    echo "#-------------------------------------------------------------------"
1411    echo "# MIDI Input Drivers:"
1412    echo "# ALSA: ${config_have_alsa}, JACK: ${config_have_jack_midi}, CoreMIDI: ${config_have_coremidi}, MME: ${config_have_mme}, MidiShare: ${config_have_midishare}"
1413    echo "#-------------------------------------------------------------------"
1414    echo "# Audio Output Drivers:"
1415    echo "# ALSA: ${config_have_alsa}, JACK: ${config_have_jack}, ARTS: ${config_have_arts}, CoreAudio: ${config_have_coreaudio}, ASIO: ${config_have_asio}"
1416    echo "#-------------------------------------------------------------------"
1417    echo "# Sampler Engines:"
1418    echo "# GIG: yes, SF2: ${config_have_sf2}, SFZ: yes"
1419    echo "#-------------------------------------------------------------------"
1420    echo "# Effect plugin systems for internal effects:"
1421    echo "# LADSPA: yes"
1422    echo "#-------------------------------------------------------------------"
1423    echo "# Building sampler as plugin for following host standards:"
1424    echo "# DSSI: ${config_have_dssi}, LV2: ${config_have_lv2}, VST: ${config_have_vst}, AU: ${config_have_au}"
1425    echo "#-------------------------------------------------------------------#"
1426    echo "# Read './configure --help' or file 'configure.in' for details.     #"
1427    echo "#####################################################################"
1428    echo ""
1429    echo "Good. Now type 'make' to compile, followed by 'make install' as root."
1430    echo ""

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