--- gigedit/trunk/configure.ac	2013/09/15 17:19:45	2472
+++ gigedit/trunk/configure.ac	2014/06/12 16:12:55	2627
@@ -70,6 +70,10 @@
 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
 PKG_CHECK_EXISTS(gtkmm-3.0 >= 2.99,
@@ -91,7 +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