--- linuxsampler/trunk/configure.in	2004/02/16 19:30:42	33
+++ linuxsampler/trunk/configure.in	2004/10/19 00:36:34	288
@@ -2,6 +2,13 @@
 AC_C_BIGENDIAN
 AC_CANONICAL_SYSTEM
 
+AC_SUBST(target)
+AC_SUBST(target_alias)
+AC_SUBST(target_cpu)
+AC_SUBST(target_os)
+AC_SUBST(target_vendor)
+
+
 
 echo -n "checking whether x86 architecture... "
 def_arch_x86=0
@@ -15,6 +22,44 @@
 AC_DEFINE_UNQUOTED(ARCH_X86,$def_arch_x86,[Define to 1 if you build for x86 architecture.])
 
 
+AC_MSG_CHECKING([whether UNIX98 compatible])
+AC_LANG_SAVE
+AC_LANG_C
+AC_TRY_RUN([
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+#include <features.h>
+void main(void) {
+#if _XOPEN_SOURCE >= 500
+exit(0); /* UNIX98 compatible */
+#else
+exit(-1); /* not UNIX98 compatible */
+#endif
+}
+],
+have_unix98="yes",
+have_unix98="no",
+have_unix98="no"
+)
+AC_LANG_RESTORE
+AC_MSG_RESULT([$have_unix98])
+if test "$have_unix98" = "no"; then
+    if test "x$HAVE_UNIX98" = "x"; then
+        echo "LinuxSampler only runs on UNIX98 compatible systems, which is mandatory for"
+        echo "pthread_mutexattr_settype() call in Mutex.cpp. You may want to run
+        echo "./configure with environment variable HAVE_UNIX98=1 in case you think you
+        echo "have a UNIX98 compatible system."
+        exit -1;
+    fi
+fi
+
+
+# Checks for available audio and MIDI systems / drivers
+# (we throw an error if there's not at least one system for audio output and MIDI input available)
+have_midi_input_driver="false"
+have_audio_output_driver="false"
+
 AC_CHECK_HEADER(alsa/asoundlib.h,
     AC_CHECK_LIB(asound, main,
                              have_alsa="true"
@@ -24,11 +69,12 @@
                 ,
                 have_alsa="false"
 )
-if test "$have_alsa" = "false"; then
-    echo "Alsa not installed!"
-    echo "Sorry, LinuxSampler only supports Alsa sound drivers at the moment!"
-    exit -1;
+if test "$have_alsa" = "true"; then
+    have_midi_input_driver="true"
+    have_audio_output_driver="true";
 fi
+AM_CONDITIONAL(HAVE_ALSA, test $have_alsa = "true")
+AC_DEFINE_UNQUOTED(HAVE_ALSA,$have_alsa,[Define to 1 if you have ALSA installed.])
 
 
 echo -n "checking Alsa version... "
@@ -90,16 +136,30 @@
 if test $HAVE_JACK = false; then
     HAVE_JACK=0;
 else
-    HAVE_JACK=1;
+    HAVE_JACK=1
+    have_audio_output_driver="true";
 fi
+AM_CONDITIONAL(HAVE_JACK, test $HAVE_JACK = 1)
 AC_DEFINE_UNQUOTED(HAVE_JACK,$HAVE_JACK,[Define to 1 if you have JACK installed.])
 
 
+if test "$have_midi_input_driver=" = "false"; then
+    echo "No supported MIDI input system found!"
+    echo "Sorry, LinuxSampler only supports ALSA as MIDI input driver at the moment!"
+    exit -1;
+fi
+if test "$have_audio_output_driver=" = "false"; then
+    echo "No supported audio output system found!"
+    echo "Sorry, LinuxSampler only supports ALSA and JACK as audio output driver at the moment!"
+    exit -1;
+fi
+
+
 AM_CONFIG_HEADER(config.h)
-AM_INIT_AUTOMAKE(linuxsampler, 0.1)
+AM_INIT_AUTOMAKE(linuxsampler, 0.2)
 
 AC_LANG_CPLUSPLUS
 AC_PROG_CXX
 AM_PROG_LIBTOOL
 
-AC_OUTPUT(Makefile src/Makefile)
+AC_OUTPUT(Makefile src/Makefile src/network/Makefile src/engines/Makefile src/engines/gig/Makefile src/engines/common/Makefile src/common/Makefile src/lib/Makefile src/lib/fileloader/Makefile src/lib/fileloader/libgig/Makefile src/testcases/Makefile src/drivers/Makefile src/drivers/audio/Makefile src/drivers/midi/Makefile)