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revision 33 by schoenebeck, Mon Feb 16 19:30:42 2004 UTC revision 1639 by schoenebeck, Sat Jan 12 14:13:46 2008 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=0
7    LINUXSAMPLER_RELEASE_MINOR=5
8    LINUXSAMPLER_RELEASE_BUILD=1
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=2
28    LIBLINUXSAMPLER_LT_REVISION=0
29    LIBLINUXSAMPLER_LT_AGE=1
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=3
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    AM_PROG_LIBTOOL
42    
43    AC_SUBST(SHLIB_VERSION_ARG)
44    AC_SUBST(SHARED_VERSION_INFO)
45    
46  AC_C_BIGENDIAN  AC_C_BIGENDIAN
47  AC_CANONICAL_SYSTEM  AC_CANONICAL_SYSTEM
48    
49    AC_SUBST(target)
50    AC_SUBST(target_alias)
51    AC_SUBST(target_cpu)
52    AC_SUBST(target_os)
53    AC_SUBST(target_vendor)
54    
55    PKG_PROG_PKG_CONFIG
56    
57  echo -n "checking whether x86 architecture... "  ###########################################################################
58    # General Checks
59    
60    AC_MSG_CHECKING([whether x86 architecture])
61  def_arch_x86=0  def_arch_x86=0
62  case $target_cpu in  case $target_cpu in
63    "i386" | "i486" | "i586" | "i686" | "i786")    "i386" | "i486" | "i586" | "i686" | "i786")
# Line 14  case $target_cpu in Line 68  case $target_cpu in
68  esac  esac
69  AC_DEFINE_UNQUOTED(ARCH_X86,$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.])
70    
71    # determine the right gcc switch for CPU specific optimizations
72  AC_CHECK_HEADER(alsa/asoundlib.h,  # (only if the user did not provide one)
73      AC_CHECK_LIB(asound, main,  CXX_CPU_SWITCH=
74                               have_alsa="true"  if ! echo "X $CXXFLAGS " | grep -q -- " \(-march=\|-mcpu=\|-mtune=\|-arch=\)" ; then
75                               ,    if test "$def_arch_x86" = 1; then
76                               have_alsa="false"      CXX_CPU_SWITCH="-march=$target_cpu"
77                  )    elif test "$target_cpu" = "ppc"; then
78                  ,      CXX_CPU_SWITCH="-arch=$target_cpu"
79                  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;  
80  fi  fi
81    AC_SUBST([CXX_CPU_SWITCH])
82    
83    # check if we're on MS Windows
84    AC_CHECK_HEADERS(
85        mmsystem.h,
86        have_windows=1,
87        have_windows=0
88    )
89    AM_CONDITIONAL(HAVE_WINDOWS, test $have_windows = "1")
90    
91  echo -n "checking Alsa version... "  AC_MSG_CHECKING([whether UNIX98 compatible])
92  AC_LANG_SAVE  AC_LANG_SAVE
93  AC_LANG_C  AC_LANG_C
94  AC_TRY_RUN([  AC_TRY_RUN([
95  #include <alsa/asoundlib.h>  #ifndef _GNU_SOURCE
96  void main(void) {  #define _GNU_SOURCE 1
 /* ensure backward compatibility */  
 #if !defined(SND_LIB_MAJOR) && defined(SOUNDLIB_VERSION_MAJOR)  
 #define SND_LIB_MAJOR SOUNDLIB_VERSION_MAJOR  
 #endif  
 exit(SND_LIB_MAJOR);  
 }  
 ],  
 alsa_major=0,  
 alsa_major=$?,  
 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  
97  #endif  #endif
98  exit(SND_LIB_MINOR);  #include <features.h>
 }  
 ],  
 alsa_minor=0,  
 alsa_minor=$?,  
 alsa_minor=0  
 )  
 AC_TRY_RUN([  
 #include <alsa/asoundlib.h>  
99  void main(void) {  void main(void) {
100  /* ensure backward compatibility */  #if _XOPEN_SOURCE >= 500
101  #if !defined(SND_LIB_SUBMINOR) && defined(SOUNDLIB_VERSION_SUBMINOR)  exit(0); /* UNIX98 compatible */
102  #define SND_LIB_SUBMINOR SOUNDLIB_VERSION_SUBMINOR  #else
103    exit(-1); /* not UNIX98 compatible */
104  #endif  #endif
 exit(SND_LIB_SUBMINOR);  
105  }  }
106  ],  ],
107  alsa_subminor=0,  have_unix98="yes",
108  alsa_subminor=$?,  have_unix98="no",
109  alsa_subminor=0  have_unix98="no"
110  )  )
111  AC_LANG_RESTORE  AC_LANG_RESTORE
112  echo "$alsa_major.$alsa_minor.$alsa_subminor";  AC_MSG_RESULT([$have_unix98])
113  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
114  AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])      if test "x$HAVE_UNIX98" = "x"; then
115  AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])          echo "LinuxSampler only runs on UNIX98 compatible systems, which is mandatory for"
116            echo "pthread_mutexattr_settype() call in Mutex.cpp. You may want to run
117            echo "./configure with environment variable HAVE_UNIX98=1 in case you think you
118            echo "have a UNIX98 compatible system."
119            exit -1;
120        fi
121    fi
122    
123    # check for <features.h>
124    AC_CHECK_HEADERS(features.h)
125    
126    # test for POSIX thread library
127    m4_ifdef([m4_include(m4/pthread.m4)],,
128                 [sinclude([m4/pthread.m4])])
129    ACX_PTHREAD
130    LIBS="$PTHREAD_LIBS $LIBS"
131    CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
132    CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS"
133    CC="$PTHREAD_CC"
134    
135    # check for a bug in NPTL-enabled glibc
136    # (see Gentoo bug report #194076)
137    AC_ARG_ENABLE(nptl-bug-check,
138      [  --disable-nptl-bug-check
139                              Disable check for a bug in certain NPTL-enabled
140                              glibc versions that caused crashs.],
141      [config_check_nptl_bug="$enableval"],
142      [config_check_nptl_bug="yes"]
143    )
144    if test "$config_check_nptl_bug" = "yes"; then
145        m4_ifdef([m4_include(m4/nptl_bug.m4)],,
146                 [sinclude([m4/nptl_bug.m4])])
147        ACX_NPTL_GLIBC_BUG([
148            echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
149            echo "You seem to have a buggy PTHREAD library! LinuxSampler would"
150            echo "probably crash due to this. Please report us the system you are"
151            echo "using and/or file a bug report to the bug tracking system of"
152            echo "your distribution."
153            echo "If you have a NPTL-enabled glibc AND it was compiled for TLS as"
154            echo "well, you can try to circumvent this problem for now by setting"
155            echo "the environment variable LD_ASSUME_KERNEL=\"2.4.1\" , which"
156            echo "should cause this test to pass."
157            echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
158            AC_MSG_ERROR([possibly NPTL glibc bug detected])
159        ])
160    else
161        echo "NPTL glibc bug check disabled"
162    fi
163    
164    
165    
166    ###########################################################################
167    # Checks for available audio and MIDI systems / drivers
168    # (we throw an error if there's not at least one system for audio output and MIDI input available)
169    
170    have_midi_input_driver="false"
171    have_audio_output_driver="false"
172    
173    # ALSA
174    AC_ARG_ENABLE(alsa-driver,
175      [  --disable-alsa-driver
176                              Disable support for the Advanced Linux Sound
177                              Architecture (ALSA).],
178      [config_alsa_driver="$enableval"],
179      [config_alsa_driver="yes"]
180    )
181    have_alsa=0
182    if test "$config_alsa_driver" = "yes"; then
183        AC_CHECK_HEADER(alsa/asoundlib.h,
184            AC_CHECK_LIB(asound, main,
185                                     have_alsa=1
186                                     ,
187                                     have_alsa=0
188                        )
189                        ,
190                        have_alsa=0
191        )
192        if test "$have_alsa" = "1"; then
193            have_midi_input_driver="true"
194            have_audio_output_driver="true";
195        fi
196    
197        echo -n "checking Alsa version... "
198        AC_LANG_SAVE
199        AC_LANG_C
200        AC_TRY_RUN([
201            #include <alsa/asoundlib.h>
202            void main(void) {
203                /* ensure backward compatibility */
204                #if !defined(SND_LIB_MAJOR) && defined(SOUNDLIB_VERSION_MAJOR)
205                #define SND_LIB_MAJOR SOUNDLIB_VERSION_MAJOR
206                #endif
207                exit(SND_LIB_MAJOR);
208            }
209        ],
210        alsa_major=0,
211        alsa_major=$?,
212        alsa_major=0
213        )
214        AC_TRY_RUN([
215            #include <alsa/asoundlib.h>
216            void main(void) {
217                /* ensure backward compatibility */
218                #if !defined(SND_LIB_MINOR) && defined(SOUNDLIB_VERSION_MINOR)
219                #define SND_LIB_MINOR SOUNDLIB_VERSION_MINOR
220                #endif
221                exit(SND_LIB_MINOR);
222            }
223        ],
224        alsa_minor=0,
225        alsa_minor=$?,
226        alsa_minor=0
227        )
228        AC_TRY_RUN([
229            #include <alsa/asoundlib.h>
230            void main(void) {
231                /* ensure backward compatibility */
232                #if !defined(SND_LIB_SUBMINOR) && defined(SOUNDLIB_VERSION_SUBMINOR)
233                #define SND_LIB_SUBMINOR SOUNDLIB_VERSION_SUBMINOR
234                #endif
235                exit(SND_LIB_SUBMINOR);
236            }
237        ],
238        alsa_subminor=0,
239        alsa_subminor=$?,
240        alsa_subminor=0
241        )
242        AC_LANG_RESTORE
243        echo "$alsa_major.$alsa_minor.$alsa_subminor";
244        AC_DEFINE_UNQUOTED(ALSA_MAJOR,$alsa_major,[Define to the major version number of your Alsa installation.])
245        AC_DEFINE_UNQUOTED(ALSA_MINOR,$alsa_minor,[Define to the minor version number of your Alsa installation.])
246        AC_DEFINE_UNQUOTED(ALSA_SUBMINOR,$alsa_subminor,[Define to the subminor version number of your Alsa installation.])
247    else
248        echo "ALSA support disabled by configure script parameter"
249    fi
250    AM_CONDITIONAL(HAVE_ALSA, test $have_alsa = "1")
251    AC_DEFINE_UNQUOTED(HAVE_ALSA,$have_alsa,[Define to 1 if you have ALSA installed.])
252    
253  # JACK  # JACK
254  PKG_CHECK_MODULES(JACK, jack, HAVE_JACK=true, HAVE_JACK=false)  AC_ARG_ENABLE(jack-driver,
255  AC_SUBST(JACK_LIBS)    [  --disable-jack-driver
256  AC_SUBST(JACK_CFLAGS)                            Disable support for the Jack Audio Connection Kit
257  if test $HAVE_JACK = false; then                            (JACK).],
258      HAVE_JACK=0;    [config_jack_driver="$enableval"],
259      [config_jack_driver="yes"]
260    )
261    have_jack=0
262    if test "$config_jack_driver" = "yes"; then
263        PKG_CHECK_MODULES(JACK, jack, have_jack=1, have_jack=0)
264        if test $have_jack = "1"; then
265            AC_SUBST(JACK_LIBS)
266            AC_SUBST(JACK_CFLAGS)
267            AC_CHECK_LIB(jack, jack_client_name_size, [AC_DEFINE(HAVE_JACK_CLIENT_NAME_SIZE, 1, [Define to 1 if you have the `jack_client_name_size' function.])], , $JACK_LIBS)
268            have_audio_output_driver="true";
269        fi
270    else
271        echo "JACK support disabled by configure script parameter"
272    fi
273    AM_CONDITIONAL(HAVE_JACK, test $have_jack = "1")
274    AC_DEFINE_UNQUOTED(HAVE_JACK,$have_jack,[Define to 1 if you have JACK installed.])
275    
276    # ARTS
277    AC_ARG_ENABLE(arts-driver,
278      [  --disable-arts-driver
279                              Disable support for the Analogue Realtime System
280                              (aRts).],
281      [config_arts_driver="$enableval"],
282      [config_arts_driver="yes"]
283    )
284    have_arts=0
285    if test "$config_arts_driver" = "yes"; then
286        m4_ifdef([m4_include(m4/arts.m4)],,
287                 [sinclude([m4/arts.m4])])
288        AM_PATH_ARTS(0.9.5, have_arts=1, have_arts=0)
289        if test "$have_arts" = "1"; then
290            have_audio_output_driver="true"
291        fi
292    else
293        echo "ARTS support disabled by configure script parameter"
294    fi
295    AM_CONDITIONAL(HAVE_ARTS, test "$have_arts" = "1")
296    AC_DEFINE_UNQUOTED(HAVE_ARTS,$have_arts,[Define to 1 if you have aRts installed.])
297    
298    # ASIO AUDIO (Win32)
299    AC_ARG_ENABLE(asiosdk-dir,
300      [  --enable-asiosdk-dir
301                              Directory where the ASIO SDK is located, this automatically
302                              enables the compilation of the ASIO audio output driver.],
303      [config_asiosdk_dir="${enableval}"],
304      [config_asiosdk_dir="."]
305    )
306    AC_SUBST(config_asiosdk_dir)
307    
308    AC_ARG_ENABLE(asio-driver,
309      [  --disable-asio-driver
310                              Disable support for the Windows ASIO driver.],
311      [config_asio_driver="$enableval"],
312      [config_asio_driver="yes"]
313    )
314    have_asio=0
315    ASIOSDK_BASEDIR=
316    if test "$config_asio_driver" = "yes"; then
317        asiosdk_headerfile=$config_asiosdk_dir/ASIOSDK2/common/asio.h
318        echo -n "checking for ASIO headerfile: $asiosdk_headerfile ...."
319        if test -e $asiosdk_headerfile ; then
320            echo yes
321            have_asio=1
322            ASIOSDK_BASEDIR="$config_asiosdk_dir"
323        else
324            echo no
325            have_asio=0
326        fi
327        if test "$have_asio" = "1"; then
328            have_audio_output_driver="true"
329        fi
330    else
331        echo "Windows ASIO support disabled by configure script parameter"
332    fi
333    AC_SUBST(ASIOSDK_BASEDIR)
334    AM_CONDITIONAL(HAVE_ASIO, test $have_asio = "1")
335    AC_DEFINE_UNQUOTED(HAVE_ASIO,$have_asio,[Define to 1 if you have ASIO installed.])
336    
337    # MidiShare (Linux, OS X, Windows)
338    AC_ARG_ENABLE(midishare-driver,
339      [  --disable-midishare-driver
340                              Disable support for the MidiShare system.],
341      [config_midishare_driver="$enableval"],
342      [config_midishare_driver="yes"]
343    )
344    have_midishare=0
345    if test "$config_midishare_driver" = "yes"; then
346        AC_CHECK_HEADER(MidiShare.h,
347            AC_CHECK_LIB(MidiShare, MidiCountEvs,
348                                    have_midishare=1,
349                                    have_midishare=0
350                        )
351                        ,
352                        have_midishare=0
353        )
354        if test "$have_midishare" = "1"; then
355            have_midi_input_driver="true"
356        fi
357    else
358        echo "MidiShare support disabled by configure script parameter"
359    fi
360    AM_CONDITIONAL(HAVE_MIDISHARE, test $have_midishare = "1")
361    AC_DEFINE_UNQUOTED(HAVE_MIDISHARE,$have_midishare,[Define to 1 if you have MidiShare installed.])
362    
363    # CoreMIDI (OS X)
364    AC_ARG_ENABLE(coremidi-driver,
365      [  --disable-coremidi-driver
366                              Disable support for the Apple CoreMIDI system.],
367      [config_coremidi_driver="$enableval"],
368      [config_coremidi_driver="yes"]
369    )
370    have_coremidi=0
371    if test "$config_coremidi_driver" = "yes"; then
372        AC_CHECK_HEADER(CoreMIDI/CoreMIDI.h,
373            have_coremidi=1,
374            have_coremidi=0
375        )
376        if test "$have_coremidi" = "1"; then
377            have_midi_input_driver="true"
378        fi
379    else
380        echo "CoreMIDI support disabled by configure script parameter"
381    fi
382    AM_CONDITIONAL(HAVE_COREMIDI, test $have_coremidi = "1")
383    AC_DEFINE_UNQUOTED(HAVE_COREMIDI,$have_coremidi,[Define to 1 if you have CoreMIDI installed.])
384    
385    # MME MIDI (Win32)
386    AC_ARG_ENABLE(mmemidi-driver,
387      [  --disable-mmemidi-driver
388                              Disable support for the Windows MME MIDI system.],
389      [config_mmemidi_driver="$enableval"],
390      [config_mmemidi_driver="yes"]
391    )
392    have_mmemidi=0
393    if test "$config_mmemidi_driver" = "yes"; then
394        AC_CHECK_HEADERS(mmsystem.h,
395            have_mmemidi=1,
396            have_mmemidi=0
397        )
398        if test "$have_mmemidi" = "1"; then
399            have_midi_input_driver="true"
400        fi
401    else
402        echo "MME MIDI support disabled by configure script parameter"
403    fi
404    AM_CONDITIONAL(HAVE_MME_MIDI, test $have_mmemidi = "1")
405    AC_DEFINE_UNQUOTED(HAVE_MME_MIDI,$have_mmemidi,[Define to 1 if you have MME MIDI installed.])
406    
407    # have we found at least one MIDI input and one audio output driver ?
408    if test "$have_midi_input_driver" = "false"; then
409        echo "No supported MIDI input system found!"
410        echo "Sorry, LinuxSampler only supports the following MIDI drivers at the moment:"
411        echo "ALSA, MIDIShare, CoreMIDI."
412        echo "If you think you have one of those available on your system, make sure you"
413        echo "also have the respective development (header) files installed."
414        exit -1;
415    fi
416    if test "$have_audio_output_driver" = "false"; then
417        echo "No supported audio output system found!"
418        echo "Sorry, LinuxSampler only supports ALSA, JACK and ARTS as audio output"
419        echo "driver at the moment!"
420        exit -1;
421    fi
422    
423    
424    
425    ###########################################################################
426    # Checks for various DLL libraries
427    
428    # Check presence of libgig
429    libgig_version="3.2.1"
430    PKG_CHECK_MODULES(GIG, gig >= $libgig_version, HAVE_GIG=true, HAVE_GIG=false)
431    if test "$HAVE_GIG" = "false"; then
432        echo "Required libgig version not found!"
433        echo "You need to have libgig version ${libgig_version} installed!"
434        exit -1;
435    else
436        echo "yes, found libgig $libgig_version"
437    fi
438    AC_SUBST(GIG_CFLAGS)
439    AC_SUBST(GIG_LIBS)
440    
441    # Instruments DB feature (requires SQLite 3.3)
442    AC_ARG_ENABLE(instruments-db,
443      [  --disable-instruments-db
444                              Disable compilation of the sampler's instruments
445                              database feature. You need to have SQLite 3.3
446                              or younger installed for this feature.],
447      [config_instruments_db="$enableval"],
448      [config_instruments_db="yes"]
449    )
450    HAVE_SQLITE3=0;
451    if test "$config_instruments_db" = "yes"; then
452        # Check presence of sqlite3
453        sqlite_version="3.3"
454        PKG_CHECK_MODULES(SQLITE3, sqlite3 >= $sqlite_version, HAVE_SQLITE3=true, HAVE_SQLITE3=false)
455        AC_SUBST(SQLITE3_LIBS)
456        AC_SUBST(SQLITE3_CFLAGS)
457        if test $HAVE_SQLITE3 = false; then
458            HAVE_SQLITE3=0
459            config_instruments_db="no"
460            echo "*** Required sqlite version not found!"
461            echo "*** You need to have sqlite version ${sqlite_version} or higher"
462            echo "*** for instruments database support to be enabled."
463            echo "*** Support for instruments DB will be disabled!"
464        else
465            HAVE_SQLITE3=1
466        fi
467    else
468        echo "Instruments DB feature disabled by configure script parameter"
469    fi
470    AM_CONDITIONAL(HAVE_SQLITE3, test $HAVE_SQLITE3 = 1)
471    AC_DEFINE_UNQUOTED(HAVE_SQLITE3,$HAVE_SQLITE3,[Define to 1 if you want the instruments DB feature and have SQLITE3 installed.])
472    
473    
474    
475    ###########################################################################
476    # Handle Configuration Options
477    
478    # TODO: should we use AC_ARG_VAR(variable, description) instead?
479    
480    AC_ARG_ENABLE(asm,
481      [  --disable-asm
482                              Enable hand-crafted assembly optimizations
483                              (default=on). LinuxSampler provides CPU specific
484                              assembly optimizations. This is currently limited
485                              to just enter a fast (denormal) FPU mode on x86
486                              platforms. There are currently no synthesis core
487                              assembly optimizations anymore since LS 0.4.0],
488      [config_asm="$enableval"],
489      [config_asm="yes"]
490    )
491    if test "$config_asm" = "yes"; then
492      AC_DEFINE_UNQUOTED(CONFIG_ASM, 1, [Define to 1 if you want to enable asm optimizations.])
493    fi
494    
495    AC_ARG_ENABLE(dev-mode,
496      [  --enable-dev-mode
497                              Enable development mode (default=off). In that mode
498                              we do some extra sanity checks here and there.
499                              This helps to spot possible problems, but reduces
500                              efficiency a bit],
501      [config_dev_mode="$enableval"],
502      [config_dev_mode="no"]
503    )
504    if test "$config_dev_mode" = "yes"; then
505      AC_DEFINE_UNQUOTED(CONFIG_DEVMODE, 1, [Define to 1 if you want to enable development mode.])
506    fi
507    
508    AC_ARG_ENABLE(debug-level,
509      [  --enable-debug-level
510                              Specify verbosity of console messages (default=1).
511                              The higher the value, the higher will be verbosity.
512                              A value of 0 means no console output at all.
513                              There's not really an upper limit but the usual
514                              level of all messages is currently somewhere less
515                              than 10.],
516      [config_debug_level="${enableval}"],
517      [config_debug_level="1"]
518    )
519    AC_DEFINE_UNQUOTED(CONFIG_DEBUG_LEVEL, $config_debug_level, [Define console verbosity.])
520    
521    AC_ARG_ENABLE(rt-exceptions,
522      [  --enable-rt-exceptions
523                              Enable exceptions in the realtime thread
524                              (default=no). If this is enabled, exceptions will
525                              be thrown on critical errors in the realtime
526                              context as well. Otherwise if disabled
527                              segmentation faults will be forced by the
528                              application on critical errors.],
529      [config_rt_exceptions="$enableval"],
530      [config_rt_exceptions="no"]
531    )
532    if test "$config_rt_exceptions" = "yes"; then
533      AC_DEFINE_UNQUOTED(CONFIG_RT_EXCEPTIONS, 1, [Define to 1 to allow exceptions in the realtime context.])
534    fi
535    
536    AC_ARG_ENABLE(preload-samples,
537      [  --enable-preload-samples
538                              Due to seeking and latency issues with hard drives
539                              we have to cache a small part of samples' head in
540                              RAM (default=32768). The higher this value the
541                              more memory will be occupied for each sample, but
542                              the safer this will be in regards of possible
543                              droputs. A 'good' value depends on the running
544                              system and usage dependant factors.],
545      [config_preload_samples="${enableval}"],
546      [config_preload_samples="32768"]
547    )
548    AC_DEFINE_UNQUOTED(CONFIG_PRELOAD_SAMPLES, $config_preload_samples, [Define amount of sample points to be cached in RAM.])
549    
550    AC_ARG_ENABLE(max-pitch,
551      [  --enable-max-pitch
552                              Specify the maximum allowed pitch value in octaves
553                              (default=4). To lower memory usage you might want
554                              set a smaller value.],
555      [config_max_pitch="${enableval}"],
556      [config_max_pitch="4"]
557    )
558    AC_DEFINE_UNQUOTED(CONFIG_MAX_PITCH, $config_max_pitch, [Define max. allowed pitch.])
559    
560    AC_ARG_ENABLE(max-events,
561      [  --enable-max-events
562                              Specify the maximum allowed amount of events to be
563                              processed per fragment (default=1024).],
564      [config_max_events="${enableval}"],
565      [config_max_events="1024"]
566    )
567    AC_DEFINE_UNQUOTED(CONFIG_MAX_EVENTS_PER_FRAGMENT, $config_max_events, [Define max. allowed events per fragment.])
568    
569    AC_ARG_ENABLE(eg-bottom,
570      [  --enable-eg-bottom
571                              Bottom limit of envelope generators
572                              (default=0.001). Certain kinds of curve types like
573                              exponential curves converge against 0 but never
574                              reach 0. So we have to define a certain low value
575                              after which we should consider all smaller values
576                              to be 'almost zero'. The smaller this value, the
577                              longer will voices survive in EG's release stage
578                              and thus waste voices. If this value is too high
579                              will cause click sounds though.],
580      [config_eg_bottom="${enableval}"],
581      [config_eg_bottom="0.001"]
582    )
583    AC_DEFINE_UNQUOTED(CONFIG_EG_BOTTOM, $config_eg_bottom, [Define bottom limit of envelopes.])
584    
585    AC_ARG_ENABLE(eg-min-release-time,
586      [  --enable-eg-min-release-time
587                              Specify the lowest allowed release time in seconds
588                              (default=0.0025). This value will also be used to
589                              ramp down voices on voice stealing. This value
590                              should always be less than the period time of the
591                              used audio driver, as in case of voice stealing
592                              the killed voice needs to be completely ramped
593                              down in the same fragment.],
594      [config_eg_min_release_time="${enableval}"],
595      [config_eg_min_release_time="0.0025"]
596    )
597    AC_DEFINE_UNQUOTED(CONFIG_EG_MIN_RELEASE_TIME, $config_eg_min_release_time, [Define min. release time.])
598    
599    AC_ARG_ENABLE(refill-streams,
600      [  --enable-refill-streams
601                              Number of streams that should be refilled in each
602                              disk thread cycle (default=4).],
603      [config_refill_streams="${enableval}"],
604      [config_refill_streams="4"]
605    )
606    AC_DEFINE_UNQUOTED(CONFIG_REFILL_STREAMS_PER_RUN, $config_refill_streams, [Define amount of streams to be refilled per cycle.])
607    
608    AC_ARG_ENABLE(stream-min-refill,
609      [  --enable-stream-min-refill
610                              Minimum refill size for disk streams (default=1024).
611                              The disk thread will go to sleep for a while if no
612                              stream had to be refilled more than this value in
613                              a disk thread cycle.],
614      [config_stream_min_refill="${enableval}"],
615      [config_stream_min_refill="1024"]
616    )
617    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MIN_REFILL_SIZE, $config_stream_min_refill, [Define min. stream refill size.])
618    
619    AC_ARG_ENABLE(stream-max-refill,
620      [  --enable-stream-max-refill
621                              Maximum refill size for disk streams
622                              (default=65536). The disk thread will refill
623                              each stream only by a size of this value per
624                              disk thread cycle.],
625      [config_stream_max_refill="${enableval}"],
626      [config_stream_max_refill="65536"]
627    )
628    AC_DEFINE_UNQUOTED(CONFIG_STREAM_MAX_REFILL_SIZE, $config_stream_max_refill, [Define max. stream refill size.])
629    
630    AC_ARG_ENABLE(stream-size,
631      [  --enable-stream-size
632                              Size of each stream's ring buffer in sample points
633                              (default=262144).],
634      [config_stream_size="${enableval}"],
635      [config_stream_size="262144"]
636    )
637    AC_DEFINE_UNQUOTED(CONFIG_STREAM_BUFFER_SIZE, $config_stream_size, [Define each stream's ring buffer size.])
638    
639    AC_ARG_ENABLE(max-streams,
640      [  --enable-max-streams
641                              Maximum amount of disk streams (default=90). This
642                              value should always be higher than the maximum
643                              amount of voices.],
644      [config_max_streams="${enableval}"],
645      [config_max_streams="90"]
646    )
647    AC_DEFINE_UNQUOTED(CONFIG_MAX_STREAMS, $config_max_streams, [Define max. streams.])
648    
649    AC_ARG_ENABLE(max-voices,
650      [  --enable-max-voices
651                              Maximum amount of voices (default=64). This value
652                              should always be lower than the maximum amount of
653                              disk streams.],
654      [config_max_voices="${enableval}"],
655      [config_max_voices="64"]
656    )
657    AC_DEFINE_UNQUOTED(CONFIG_MAX_VOICES, $config_max_voices, [Define max. voices.])
658    
659    AC_ARG_ENABLE(subfragment-size,
660      [  --enable-subfragment-size
661                              Every audio fragment will be splitted into
662                              subfragments. Where each subfragment renders
663                              audio with constant synthesis parameters. This is
664                              done for efficiency reasons. This parameter
665                              defines the default size of a subfragment in
666                              sample points. A large value means less CPU time
667                              whereas a low value means better audio quality
668                              (default=32).],
669      [config_subfragment_size="${enableval}"],
670      [config_subfragment_size="32"]
671    )
672    AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_SUBFRAGMENT_SIZE, $config_subfragment_size, [Define default subfragment size (in sample points).])
673    
674    AC_ARG_ENABLE(global-attenuation-default,
675      [  --enable-global-attenuation-default
676                              To prevent clipping all samples will be lowered
677                              in amplitude by this given default factor (can
678                              be overridden at runtime).
679                              (default=0.35)],
680      [config_global_attenuation_default="${enableval}"],
681      [config_global_attenuation_default="0.35"]
682    )
683    AC_DEFINE_UNQUOTED(CONFIG_GLOBAL_ATTENUATION_DEFAULT, $config_global_attenuation_default, [Define default global volume attenuation (as floating point factor).])
684    
685    AC_ARG_ENABLE(voice-steal-algo,
686      [  --enable-voice-steal-algo
687                              Voice stealing algorithm to be used. Currently
688                              available options:
689                                none:
690                                  Disable voice stealing completely.
691                                oldestvoiceonkey (default):
692                                  Try to kill a voice on the same key first,
693                                  if no success, proceed with the oldest key.
694                                oldestkey:
695                                  Try to kill a voice from the oldest active
696                                  key.],
697      [ if test ! "(" "${enableval}" = "none" \
698                  -o "${enableval}" = "oldestvoiceonkey" \
699                  -o "${enableval}" = "oldestkey" ")" ; then
700          AC_MSG_ERROR([Unknown voice stealing algorithm for parameter --enable-voice-steal-algo])
701        else
702          config_voice_steal_algo="${enableval}"
703        fi
704      ],
705      [config_voice_steal_algo="oldestvoiceonkey"]
706    )
707    AC_DEFINE_UNQUOTED(CONFIG_VOICE_STEAL_ALGO, voice_steal_algo_${config_voice_steal_algo}, [Define voice stealing algorithm to be used.])
708    
709    AC_ARG_ENABLE(sysex-buffer-size,
710      [  --enable-sysex-buffer-size
711                              System Exclusive Message buffer size in kB
712                              (default=2048).],
713      [config_sysex_buffer_size="${enableval}"],
714      [config_sysex_buffer_size="2048"]
715    )
716    AC_DEFINE_UNQUOTED(CONFIG_SYSEX_BUFFER_SIZE, $config_sysex_buffer_size, [Define SysEx buffer size.])
717    
718    AC_ARG_ENABLE(force-filter,
719      [  --enable-force-filter
720                              If enabled will force filter to be used even if
721                              no usage was define in instrument patch files.
722                              (default=no).],
723      [config_force_filter="$enableval"],
724      [config_force_filter="no"]
725    )
726    if test "$config_force_filter" = "yes"; then
727      AC_DEFINE_UNQUOTED(CONFIG_FORCE_FILTER, 1, [Define to 1 to force filter usage.])
728    fi
729    
730    AC_ARG_ENABLE(filter-cutoff-min,
731      [  --enable-filter-cutoff-min
732                              Minimum filter cutoff frequency in Hz
733                              (default=100.0).],
734      [config_filter_cutoff_min="${enableval}"],
735      [config_filter_cutoff_min="100.0"]
736    )
737    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MIN, ${config_filter_cutoff_min}f, [Define min. filter cutoff frequency.])
738    
739    AC_ARG_ENABLE(filter-cutoff-max,
740      [  --enable-filter-cutoff-max
741                              Maximum filter cutoff frequency in Hz
742                              (default=10000.0).],
743      [config_filter_cutoff_max="${enableval}"],
744      [config_filter_cutoff_max="10000.0"]
745    )
746    AC_DEFINE_UNQUOTED(CONFIG_FILTER_CUTOFF_MAX, ${config_filter_cutoff_max}f, [Define max. filter cutoff frequency.])
747    
748    AC_ARG_ENABLE(override-cutoff-ctrl,
749      [  --enable-override-cutoff-ctrl
750                              Override filter cutoff MIDI controller (default=no).
751                              Note: you have to define the MIDI controller number
752                              here, it's not a boolean parameter type! If this
753                              option is used, controller number given by
754                              instrument patch will be ignored and instead this
755                              supplied value will be used.],
756      [config_override_cutoff_ctrl="${enableval}"],
757      [config_override_cutoff_ctrl="no"]
758    )
759    if test ! "$config_override_cutoff_ctrl" = "no"; then
760      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_CUTOFF_CTRL, $config_override_cutoff_ctrl, [Define to a MIDI controller number to override cutoff control.])
761    fi
762    
763    AC_ARG_ENABLE(override-resonance-ctrl,
764      [  --enable-override-resonance-ctrl
765                              Override filter resonance MIDI controller
766                              (default=no). Note: you have to define the MIDI
767                              controller number here, it's not a boolean
768                              parameter type! If this option is used, controller
769                              number given by instrument patch will be ignored
770                              and instead this supplied value will be used.],
771      [config_override_resonance_ctrl="${enableval}"],
772      [config_override_resonance_ctrl="no"]
773    )
774    if test ! "$config_override_resonance_ctrl" = "no"; then
775      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_RESONANCE_CTRL, $config_override_resonance_ctrl, [Define to a MIDI controller number to override resonance control.])
776    fi
777    
778    AC_ARG_ENABLE(override-filter-type,
779      [  --enable-override-filter-type
780                              Override filter type (default=no). Options:
781                              hp: for highpass
782                              bp: for bandpass
783                              br: for bandreject
784                              lp: for lowpass
785                              lpt: for lowpass turbo],
786      [ if   test "${enableval}" = "hp" ; then
787           config_override_filter_type="::gig::vcf_type_highpass"
788        elif test "${enableval}" = "bp" ; then
789           config_override_filter_type="::gig::vcf_type_bandpass"
790        elif test "${enableval}" = "br" ; then
791           config_override_filter_type="::gig::vcf_type_bandreject"
792        elif test "${enableval}" = "lp" ; then
793           config_override_filter_type="::gig::vcf_type_lowpass"
794        elif test "${enableval}" = "lpt" ; then
795           config_override_filter_type="::gig::vcf_type_lowpassturbo"
796        elif test ! "${enableval}" = "no"; then
797           AC_MSG_ERROR([Unknown filter type for parameter --enable-override-filter-type])
798        fi
799      ],
800      [config_override_filter_type="no"]
801    )
802    if test ! "$config_override_filter_type" = "no"; then
803      AC_DEFINE_UNQUOTED(CONFIG_OVERRIDE_FILTER_TYPE, $config_override_filter_type, [Define to a filter type to always force that filter type.])
804    fi
805    
806    AC_ARG_ENABLE(gs-checksum,
807      [  --enable-gs-checksum
808                              Enable Roland General Synth SysEx checksum check
809                              (default=no). If this is enabled, all GS SysEx
810                              messages which do not provide a correct checksum
811                              will be ignored. This is disabled by default as
812                              not all devices honor GS checksums.],
813      [config_assert_gs_sysex_checksum="$enableval"],
814      [config_assert_gs_sysex_checksum="no"]
815    )
816    if test "config_assert_gs_sysex_checksum" = "yes"; then
817      AC_DEFINE_UNQUOTED(CONFIG_ASSERT_GS_SYSEX_CHECKSUM, 1, [Define to 1 if you want to enable GS SysEx check.])
818    fi
819    
820    AC_ARG_ENABLE(portamento-time-min,
821      [  --enable-portamento-time-min
822                              Minimum Portamento time in seconds
823                              (default=0.1).],
824      [config_portamento_time_min="${enableval}"],
825      [config_portamento_time_min="0.1"]
826    )
827    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MIN, $config_portamento_time_min, [Define min. portamento time.])
828    
829    AC_ARG_ENABLE(portamento-time-max,
830      [  --enable-portamento-time-max
831                              Maximum Portamento time in seconds
832                              (default=32).],
833      [config_portamento_time_max="${enableval}"],
834      [config_portamento_time_max="32"]
835    )
836    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_MAX, $config_portamento_time_max, [Define max. portamento time.])
837    
838    AC_ARG_ENABLE(portamento-time-default,
839      [  --enable-portamento-time-default
840                              Default Portamento time in seconds
841                              (default=1).],
842      [config_portamento_time_default="${enableval}"],
843      [config_portamento_time_default="1"]
844    )
845    AC_DEFINE_UNQUOTED(CONFIG_PORTAMENTO_TIME_DEFAULT, $config_portamento_time_default, [Define default portamento time.])
846    
847    AC_ARG_ENABLE(signed-triang-algo,
848      [  --enable-signed-triang-algo
849                              Signed triangular wave algorithm to be used (e.g. for LFOs).
850                              Currently available options:
851                                intmath:
852                                  Uses integer math without any branch will then be
853                                  converted to floating point value for each sample point.
854                                  This int->float conversion might hurt on some systems.
855                                intmathabs:
856                                  Similar to intmath but uses abs() function.
857                                  Depending on compiler and platrofm this could
858                                  perform better than integer math as it avoids
859                                  an extra integer multiply instruction.
860                                diharmonic:
861                                  The triangular wave will be approximated by adding two
862                                  sinusoidials. This solution might especially hurt on
863                                  systems with weak floating point unit.
864                                benchmark (default):
865                                  This is not an algorithm. Use this option if the
866                                  appropriate algorithm should be automatically
867                                  chosen by the configure script by performing a
868                                  benchmark between the algorithms mentioned above.
869                                  This will NOT work for cross compilation!],
870      [ if test ! "(" "${enableval}" = "intmath" \
871                  -o "${enableval}" = "intmathabs" \
872                  -o "${enableval}" = "diharmonic" ")" ; then
873          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-signed-triang-algo])
874        else
875          config_signed_triang_algo="${enableval}"
876        fi
877      ],
878      [config_signed_triang_algo="benchmark"]
879    )
880    
881    AC_ARG_ENABLE(unsigned-triang-algo,
882      [  --enable-unsigned-triang-algo
883                              Unsigned triangular wave algorithm to be used (e.g. for LFOs).
884                              Currently available options:
885                                intmath:
886                                  Uses integer math without any branch will then be
887                                  converted to floating point value for each sample point.
888                                  This int->float conversion might hurt on some systems.
889                                intmathabs:
890                                  Similar to intmath but uses abs() function.
891                                  Depending on compiler and platrofm this could
892                                  perform better than integer math as it avoids
893                                  an extra integer multiply instruction.
894                                diharmonic:
895                                  The triangular wave will be approximated by adding two
896                                  sinusoidials. This solution might especially hurt on
897                                  systems with weak floating point unit.
898                                benchmark (default):
899                                  This is not an algorithm. Use this option if the
900                                  appropriate algorithm should be automatically
901                                  chosen by the configure script by performing a
902                                  benchmark between the algorithms mentioned above.
903                                  This will NOT work for cross compilation!],
904      [ if test ! "(" "${enableval}" = "intmath" \
905                  -o "${enableval}" = "intmathabs" \
906                  -o "${enableval}" = "diharmonic" ")" ; then
907          AC_MSG_ERROR([Unknown triangular wave algorithm for parameter --enable-unsigned-triang-algo])
908        else
909          config_unsigned_triang_algo="${enableval}"
910        fi
911      ],
912      [config_unsigned_triang_algo="benchmark"]
913    )
914    
915    AC_ARG_ENABLE(process-muted-channels,
916      [  --enable-process-muted-channels
917                              Enable processing of muted channels (default=no).
918                              In that mode all MIDI events in the muted channels
919                              will be processed. This will provide information
920                              about the active voices in the muted channels and
921                              will not discard notes, triggered in mute mode,
922                              when the channel is unmuted. But also will reduce
923                              the efficiency.],
924      [config_process_muted_channels="$enableval"],
925      [config_process_muted_channels="no"]
926    )
927    if test "$config_process_muted_channels" = "yes"; then
928      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_MUTED_CHANNELS, 1, [Define to 1 if you want to enable processing of muted channels.])
929    fi
930    
931    AC_ARG_ENABLE(process-all-notes-off,
932      [  --disable-process-all-notes-off
933                              Disable interpretation of All-Notes-Off MIDI
934                              messages (default=on). By default LS will release
935                              all voices whenever it receives an All-Notes-Off
936                              MIDI message. You can disable this behavior, so
937                              that LS simply ignores such messages.],
938      [config_process_all_notes_off="$enableval"],
939      [config_process_all_notes_off="yes"]
940    )
941    if test "$config_process_all_notes_off" = "yes"; then
942      AC_DEFINE_UNQUOTED(CONFIG_PROCESS_ALL_NOTES_OFF, 1, [Define to 1 if you want to enable processing of All-Notes-Off MIDI messages.])
943    fi
944    
945    AC_ARG_ENABLE(interpolate-volume,
946      [  --disable-interpolate-volume
947                              Disable interpolation of volume modulation
948                              (default=on). With this enabled, the volume changes
949                              generated by for example the envelope generator
950                              will be smoother, minimizing the risk for audio
951                              clicks. Disable it to reduce CPU usage.],
952      [config_interpolate_volume="$enableval"],
953      [config_interpolate_volume="yes"]
954    )
955    if test "$config_interpolate_volume" = "yes"; then
956      AC_DEFINE_UNQUOTED(CONFIG_INTERPOLATE_VOLUME, 1, [Define to 1 if you want to enable interpolation of volume modulation.])
957    fi
958    
959    AC_ARG_ENABLE(plugin-dir,
960      [  --enable-plugin-dir
961                              Directory where the sampler shall look for potential plugins,
962                              that is 3rd party shared libraries that should be loaded by
963                              the sampler on startup. By default the sampler will search
964                              for plugins in the subdirectory "plugins" below its own
965                              library directory.
966                              (i.e. /usr/local/lib/linuxsampler/plugins)],
967      [config_plugin_dir="${enableval}"],
968      [config_plugin_dir="${libdir}/linuxsampler/plugins"]
969    )
970    AC_SUBST(config_plugin_dir)
971    
972    AC_ARG_ENABLE(default-instruments-db-location,
973      [  --enable-default-instruments-db-location
974                              Only when instruments DB feature is enabled: file name
975                              which shall be taken as default location of the
976                              instruments DB file. This location can still be
977                              overridden at runtime with a command line switch.
978                              (default: /var/lib/linuxsampler/instruments.db)],
979      [config_default_instruments_db_file="${enableval}"],
980      [config_default_instruments_db_file="/var/lib/linuxsampler/instruments.db"]
981    )
982    AC_DEFINE_UNQUOTED(
983        CONFIG_DEFAULT_INSTRUMENTS_DB_LOCATION,
984        "$config_default_instruments_db_file",
985        [Only when instruments DB feature is enabled: default location of the DB file.]
986    )
987    AC_SUBST(config_default_instruments_db_file)
988    
989    
990    ###########################################################################
991    # Automatic Benchmarks (to detect the best algorithms for the system)
992    
993    AC_LANG_SAVE
994    
995    if test "$config_signed_triang_algo" = "benchmark"; then
996        echo -n "benchmarking for the best (signed) triangular oscillator algorithm... "
997        AC_LANG_CPLUSPLUS
998        AC_TRY_RUN([
999                #define SIGNED 1
1000                #define SILENT 1
1001                #include "${srcdir}/benchmarks/triang.cpp"
1002            ],
1003            triang_signed=0,
1004            triang_signed=$?,
1005            triang_signed=0
1006        )
1007        if test "$triang_signed" = "2"; then
1008            config_signed_triang_algo="intmath"
1009            echo "integer math"
1010        elif test "$triang_signed" = "3"; then
1011            config_signed_triang_algo="diharmonic"
1012            echo "di harmonics"
1013        elif test "$triang_signed" = "5"; then
1014            config_signed_triang_algo="intmathabs"
1015            echo "integer math using abs()"
1016        else
1017            echo "Benchmark of signed triangular wave algorithms failed!"
1018            echo "Maybe you are doing cross compilation? In that case you have to select"
1019            echo "an algorithm manually with './configure --enable-signed-triang-algo=...'"
1020            echo "Call './configure --help' for further information or read configure.in."
1021            exit -1;
1022        fi
1023    else
1024        case "$config_signed_triang_algo" in
1025            intmath)
1026                triang_signed=2 ;;
1027            diharmonic)
1028                triang_signed=3 ;;
1029            intmathabs)
1030                triang_signed=5 ;;
1031        esac
1032    fi
1033    AC_DEFINE_UNQUOTED(CONFIG_SIGNED_TRIANG_ALGO, ${triang_signed}, [Define signed triangular wave algorithm to be used.])
1034    
1035    if test "$config_unsigned_triang_algo" = "benchmark"; then
1036        echo -n "benchmarking for the best (unsigned) triangular oscillator algorithm... "
1037        AC_LANG_CPLUSPLUS
1038        AC_TRY_RUN([
1039                #define SIGNED 0
1040                #define SILENT 1
1041                #include "${srcdir}/benchmarks/triang.cpp"
1042            ],
1043            triang_unsigned=0,
1044            triang_unsigned=$?,
1045            triang_unsigned=0
1046        )
1047        if test "$triang_unsigned" = "2"; then
1048            config_unsigned_triang_algo="intmath"
1049            echo "integer math"
1050        elif test "$triang_unsigned" = "3"; then
1051            config_unsigned_triang_algo="diharmonic"
1052            echo "di harmonics"
1053        elif test "$triang_unsigned" = "5"; then
1054            config_unsigned_triang_algo="intmathabs"
1055            echo "integer math using abs()"
1056        else
1057            echo "Benchmark of unsigned triangular wave algorithms failed!"
1058            echo "Maybe you are doing cross compilation? In that case you have to select"
1059            echo "an algorithm manually with './configure --enable-unsigned-triang-algo=...'"
1060            echo "Call './configure --help' for further information or read configure.in."
1061            exit -1;
1062        fi
1063  else  else
1064      HAVE_JACK=1;      case "$config_unsigned_triang_algo" in
1065            intmath)
1066                triang_unsigned=2 ;;
1067            diharmonic)
1068                triang_unsigned=3 ;;
1069            intmathabs)
1070                triang_unsigned=5 ;;
1071        esac
1072  fi  fi
1073  AC_DEFINE_UNQUOTED(HAVE_JACK,$HAVE_JACK,[Define to 1 if you have JACK installed.])  AC_DEFINE_UNQUOTED(CONFIG_UNSIGNED_TRIANG_ALGO, ${triang_unsigned}, [Define unsigned triangular wave algorithm to be used.])
1074    
1075    AC_LANG_RESTORE
1076    
1077    
1078    ###########################################################################
1079    # Create Build Files
1080    
1081  AM_CONFIG_HEADER(config.h)  AM_CONFIG_HEADER(config.h)
1082  AM_INIT_AUTOMAKE(linuxsampler, 0.1)  AM_INIT_AUTOMAKE(linuxsampler, "$LINUXSAMPLER_RELEASE_MAJOR.$LINUXSAMPLER_RELEASE_MINOR.$LINUXSAMPLER_RELEASE_BUILD")
1083    
1084  AC_LANG_CPLUSPLUS  AC_LANG_CPLUSPLUS
1085  AC_PROG_CXX  AC_PROG_CXX
 AM_PROG_LIBTOOL  
1086    
1087  AC_OUTPUT(Makefile src/Makefile)  # some gcc 4.0 versions need -msse for SSE register allocations
1088    if test "$config_asm" = "yes"; then
1089      if test "$def_arch_x86" = 1; then
1090        CXXFLAGS="$CXXFLAGS -msse"
1091      fi
1092    fi
1093    
1094    # autoconf 2.59/libtool 1.5.12 bug? work-around. Without a check like
1095    # this, the dlfcn.h check in am_prog_libtool may fail.
1096    AC_CHECK_HEADER(stdlib.h)
1097    
1098    AC_OUTPUT( \
1099        Makefile \
1100        man/Makefile \
1101        man/linuxsampler.1 \
1102        src/Makefile \
1103        src/db/Makefile \
1104        src/network/Makefile \
1105        src/engines/Makefile \
1106        src/engines/gig/Makefile \
1107        src/engines/common/Makefile \
1108        src/common/Makefile \
1109        src/testcases/Makefile \
1110        src/drivers/Makefile \
1111        src/drivers/audio/Makefile \
1112        src/drivers/midi/Makefile \
1113        src/plugins/Makefile \
1114        linuxsampler.spec \
1115        debian/Makefile \
1116        Artwork/Makefile \
1117        scripts/Makefile \
1118        osx/Makefile \
1119        osx/linuxsampler.xcodeproj/Makefile \
1120        Documentation/Makefile \
1121        Documentation/Engines/Makefile \
1122        Documentation/Engines/gig/Makefile \
1123        linuxsampler.pc \
1124        Doxyfile \
1125    )
1126    
1127    # resolve all nested variables in '${config_plugin_dir}'
1128    # (merely for providing a human readable summary below)
1129    while test $config_plugin_dir != `eval echo ${config_plugin_dir}` ; do
1130            config_plugin_dir=`eval echo ${config_plugin_dir}`
1131    done
1132    
1133    
1134    ###########################################################################
1135    # Output All Configuration Options
1136    
1137    echo ""
1138    echo "#####################################################################"
1139    echo "# LinuxSampler Configuration                                        #"
1140    echo "#-------------------------------------------------------------------#"
1141    echo "# Assembly Optimizations: ${config_asm}"
1142    echo "# Development Mode: ${config_dev_mode}"
1143    echo "# Debug Level: ${config_debug_level}"
1144    echo "# Use Exceptions in RT Context: ${config_rt_exceptions}"
1145    echo "# Preload Samples: ${config_preload_samples}"
1146    echo "# Maximum Pitch: ${config_max_pitch} (octaves)"
1147    echo "# Maximum Events: ${config_max_events}"
1148    echo "# Envelope Bottom Level: ${config_eg_bottom} (linear)"
1149    echo "# Envelope Minimum Release Time: ${config_eg_min_release_time} s"
1150    echo "# Streams to be refilled per Disk Thread Cycle: ${config_refill_streams}"
1151    echo "# Minimum Stream Refill Size: ${config_stream_min_refill}"
1152    echo "# Maximum Stream Refill Size: ${config_stream_max_refill}"
1153    echo "# Stream Size: ${config_stream_size}"
1154    echo "# Maximum Disk Streams: ${config_max_streams}"
1155    echo "# Maximum Voices: ${config_max_voices}"
1156    echo "# Default Subfragment Size: ${config_subfragment_size}"
1157    echo "# Default Global Volume Attenuation: ${config_global_attenuation_default}"
1158    echo "# Voice Stealing Algorithm: ${config_voice_steal_algo}"
1159    echo "# Signed Triangular Oscillator Algorithm: ${config_signed_triang_algo}"
1160    echo "# Unsigned Triangular Oscillator Algorithm: ${config_unsigned_triang_algo}"
1161    echo "# SysEx Buffer Size: ${config_sysex_buffer_size} Byte"
1162    echo "# Min. Portamento Time: ${config_portamento_time_min} s"
1163    echo "# Max. Portamento Time: ${config_portamento_time_max} s"
1164    echo "# Default Portamento Time: ${config_portamento_time_default} s"
1165    echo "# Force Filter Usage: ${config_force_filter}"
1166    echo "# Filter Cutoff Minimum: ${config_filter_cutoff_min} Hz"
1167    echo "# Filter Cutoff Maximum: ${config_filter_cutoff_max} Hz"
1168    echo "# Override Filter Cutoff Controller: ${config_override_cutoff_ctrl}"
1169    echo "# Override Filter Resonance Controller: ${config_override_resonance_ctrl}"
1170    echo "# Override Filter Type: ${config_override_filter_type}"
1171    echo "# Assert GS SysEx Checksum: ${config_assert_gs_sysex_checksum}"
1172    echo "# Process Muted Channels: ${config_process_muted_channels}"
1173    echo "# Process All-Notes-Off MIDI message: ${config_process_all_notes_off}"
1174    echo "# Interpolate Volume: ${config_interpolate_volume}"
1175    echo "# Instruments database support: ${config_instruments_db}"
1176    if test "$config_instruments_db" = "yes"; then
1177    echo "# Instruments DB default location: ${config_default_instruments_db_file}"
1178    fi
1179    echo "# Plugin Path: ${config_plugin_dir}"
1180    echo "#-------------------------------------------------------------------#"
1181    echo "# Read './configure --help' or file 'configure.in' for details.     #"
1182    echo "#####################################################################"
1183    echo ""
1184    echo "Good. Now type 'make' to compile, followed by 'make install' as root."
1185    echo ""

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