--- gigedit/trunk/configure.ac	2013/01/13 09:14:29	2398
+++ gigedit/trunk/configure.ac	2014/06/12 16:12:55	2627
@@ -61,11 +61,18 @@
 IT_PROG_INTLTOOL(0.35.0)
 AM_GLIB_GNU_GETTEXT
 
+windows=no
+mac=no
 case $host in
     *mingw*|*cygwin*) windows=yes ;;
-    *)                windows=no ;;
+    *-*-darwin*) mac=yes ;;
 esac
 AM_CONDITIONAL(WINDOWS, test "$windows" = "yes")
+AM_CONDITIONAL(MAC, test "$mac" = "yes")
+
+if test "$mac" = "yes"; then
+    AC_PROG_OBJC
+fi
 
 PKG_PROG_PKG_CONFIG
 have_gtk3=no
@@ -88,7 +95,7 @@
 AC_SUBST(SNDFILE_LIBS)
 
 # check for (optional) presence of liblinuxsampler
-liblinuxsampler_version="0.5.0"
+liblinuxsampler_version="1.0.0"
 PKG_CHECK_MODULES(
     LINUXSAMPLER, linuxsampler >= $liblinuxsampler_version,
     have_linuxsampler=1, have_linuxsampler=0