--- linuxsampler/trunk/configure.in	2005/08/16 17:14:25	738
+++ linuxsampler/trunk/configure.in	2005/12/22 21:04:35	821
@@ -99,6 +99,9 @@
     fi
 fi
 
+# check for <feature.h>
+AC_CHECK_HEADERS(feature.h)
+
 # 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"
@@ -451,6 +454,16 @@
 )
 AC_DEFINE_UNQUOTED(CONFIG_DEFAULT_SUBFRAGMENT_SIZE, $config_subfragment_size, [Define default subfragment size (in sample points).])
 
+AC_ARG_ENABLE(global-attenuation,
+  [  --enable-global-attenuation
+                          To prevent clipping all samples will be lowered
+                          in amplitude by this given factor.
+                          (default=0.35)],
+  [config_global_attenuation="${enableval}"],
+  [config_global_attenuation="0.35"]
+)
+AC_DEFINE_UNQUOTED(CONFIG_GLOBAL_ATTENUATION, $config_global_attenuation, [Define global volume attenuation (as floating point factor).])
+
 AC_ARG_ENABLE(voice-steal-algo,
   [  --enable-voice-steal-algo
                           Voice stealing algorithm to be used. Currently
@@ -816,6 +829,7 @@
 echo "# Maximum Disk Streams: ${config_max_streams}"
 echo "# Maximum Voices: ${config_max_voices}"
 echo "# Default Subfragment Size: ${config_subfragment_size}"
+echo "# Global Volume Attenuation: ${config_global_attenuation}"
 echo "# Voice Stealing Algorithm: ${config_voice_steal_algo}"
 echo "# Signed Triangular Oscillator Algorithm: ${config_signed_triang_algo}"
 echo "# Unsigned Triangular Oscillator Algorithm: ${config_unsigned_triang_algo}"