1 files changed, 49 insertions, 0 deletions
diff --git a/config/macosx_audiounit.m4 b/config/macosx_audiounit.m4
new file mode 100644
index 000000000..313feb3b5
--- /dev/null
+++ b/config/macosx_audiounit.m4
@@ -0,0 +1,49 @@
+# Copyright 2006 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+AC_DEFUN([MACOSX_AUDIOUNIT],
+[
+    audiounitok=yes
+    case "$host_os" in
+    	darwin*);;
+    	*) 
+	   audiounitok=no
+	   AC_MSG_WARN([gr-audio-osx requires darwin or MacOS X.])
+    esac
+
+    AC_CHECK_HEADERS([AudioUnit/AudioUnit.h],
+	  [],
+	  [ 
+	    audiounitok=no,
+	    AC_MSG_WARN([gr-audio-osx requires AudioUnit/AudioUnit.h, which is available on MacOS X.])
+	  ]
+    )
+
+    AC_CHECK_HEADERS([AudioToolbox/AudioToolbox.h],
+	  [],
+	  [ 
+	    audiounitok=no,
+	    AC_MSG_WARN([gr-audio-osx requires AudioToolbox/AudioToolbox.h, which is available on MacOS X.])
+	  ]
+    )    
+
+    if test $audiounitok = yes; then
+        ifelse([$1], , :, [$1])
+    else
+        ifelse([$2], , :, [$2])
+    fi
+])