diff --git a/beos/makefile b/beos/makefile
index 63a57d787..0c4285c67 100644
--- a/beos/makefile
+++ b/beos/makefile
@@ -52,7 +52,7 @@ else
      LIBS = be bind socket tracker transmission Prefs
 endif
 ifneq ($(wildcard /boot/beos/system/lib/libzeta.so),)
-	LIBS += zeta
+	LIBS += zeta crypto
 endif
 #	specify additional paths to directories following the standard
 #	libXXX.so or libXXX.a naming scheme.  You can specify full paths
diff --git a/configure b/configure
index 7ed285578..c3d72647c 100755
--- a/configure
+++ b/configure
@@ -194,7 +194,7 @@ echo "System:  $SYSTEM"
 #
 # Mac OS X check for the Universal SDK
 #
-if [ $SYSTEM = Darwin -a ! -d /Developer/SDKs/MacOSX10.4u.sdk ]; then
+if [ "$SYSTEM" = Darwin -a ! -d /Developer/SDKs/MacOSX10.4u.sdk ]; then
   echo
   echo "You need to install the Universal SDK in order to build Transmission:"
   echo "  Get your Xcode CD or package"
diff --git a/libtransmission/choking.c b/libtransmission/choking.c
index cdad7d0fb..52a5d010c 100644
--- a/libtransmission/choking.c
+++ b/libtransmission/choking.c
@@ -23,6 +23,10 @@
 #include <math.h>
 #include "transmission.h"
 
+#ifdef SYS_BEOS
+#define lrintf(a) ((int)(0.5+(a)))
+#endif
+
 struct tr_choking_s
 {
     tr_lock_t     lock;