--- configure.orig	2016-09-12 16:11:24 UTC
+++ configure
@@ -140,10 +140,14 @@ CXX_FLAGS=""
 if [ "$OS" = "freebsd" ]; then
   INCCURL="-I/usr/local/include"
   LIBCURL="-L/usr/local/lib -lcurl"
+  INCALSA="-I/usr/local/include"
+  LIBALSA="-L/usr/local/lib"
   INCPULSE="-I/usr/local/include"
   LIBPULSE="-L/usr/local/lib"
   INCPNG="-I/usr/local/include"
   LIBPNG="-L/usr/local/lib -lpng"
+  INCVNCSERVER="-I/usr/local/include"
+  LIBVNCSERVER="-L/usr/local/lib"
 else
   INCCURL=""
   LIBCURL="-lcurl"
@@ -441,6 +445,9 @@ check_gcc()
       elif [ $cc_maj -eq 4 -a $cc_min -eq 0 -a "$OS" = "darwin" ]; then
         log_success "found version $cc_ver"
       # gcc-4.0 is allowed for Darwin only
+      elif [ $cc_maj -eq 4 -a $cc_min -eq 2 -a "$OS" = "freebsd" ]; then
+        log_success "found version $cc_ver"
+      # gcc-4.2 is allowed for FreeBSD only
       elif [ $cc_maj -lt 4 \
              -o \( $cc_maj -eq 4 -a $cc_min -lt 4 -a "$OS" != "darwin" \) \
              -o \( $cc_maj -eq 4 -a $cc_min -lt 2 -a "$OS"  = "darwin" \) \
@@ -1224,7 +1231,7 @@ extern "C" int main(void)
 #endif
 }
 EOF
-  if test_compile "-lasound" asound asound; then
+  if test_compile "$INCALSA $LIBALSA -lasound" asound asound; then
     test_execute
   fi
 }
@@ -2126,8 +2133,8 @@ EOF
         echo "compiling the following source file:" >> $LOG
         cat $ODIR.tmp_src.cc >> $LOG
         echo "using the following command line:" >> $LOG
-        echo "$CXX -O -Wall -o $ODIR.tmp_out $ODIR.tmp_src.cc -I$p/include/$d $p/$b/lib$d.so" >> $LOG
-        $CXX -O -Wall -o $ODIR.tmp_out $ODIR.tmp_src.cc -I$p/include/$d $p/$b/lib$d.so >> $LOG 2>&1
+        echo "$CXX -O -Wall -o $ODIR.tmp_out $ODIR.tmp_src.cc -I$p/include/$d $p/$b/lib$d.so -pthread" >> $LOG
+        $CXX -O -Wall -o $ODIR.tmp_out $ODIR.tmp_src.cc -I$p/include/$d $p/$b/lib$d.so -pthread >> $LOG 2>&1
         if [ $? -eq 0 ]; then
           found=1
           break
@@ -2603,7 +2610,7 @@ for option in "$@"; do
     --with-openssl-dir=*)
       OPENSSLDIR=`echo $option | cut -d'=' -f2`
       INCCRYPTO="-I${OPENSSLDIR}/include"
-      LIBCRYPTO="${OPENSSLDIR}/lib/libcrypto.a ${OPENSSLDIR}/lib/libssl.a"
+      LIBCRYPTO="-L${OPENSSLDIR}/lib -lssl -lcrypto"
       ;;
     --with-ow-dir=*)
       WATCOM=`echo $option | cut -d'=' -f2`
@@ -2944,13 +2951,20 @@ if [ $ONLY_ADDITIONS -eq 0 ]; then
   [ $WITH_PYTHON -eq 1 ] && check_python
   [ $WITH_JAVA   -eq 1 ] && check_java
 
-  # PulseAudio
   if [ "$OS" = "linux" -o "$OS" = "freebsd" -o "$OS" = "netbsd" ]; then
+    if [ $WITH_ALSA -eq 1 ]; then
+      check_alsa
+    else
+      cnf_append "VBOX_WITH_AUDIO_ALSA" ""
+    fi
     if [ $WITH_PULSE -eq 1 ]; then
       check_pulse
     elif [ $WITH_PULSE -eq 0 ]; then
       cnf_append "VBOX_WITH_AUDIO_PULSE" ""
     fi
+    if [ $WITH_DBUS -eq 0 ]; then
+      cnf_append "VBOX_WITH_DBUS" ""
+    fi
  fi
 fi
 
@@ -2967,14 +2981,6 @@ if [ "$OS" = "linux" ]; then
     cnf_append "VBOX_WITH_ADDITION_DRIVERS" ""
   fi
   if [ $ONLY_ADDITIONS -eq 0 ]; then
-    if [ $WITH_ALSA -eq 1 ]; then
-      check_alsa
-    else
-      cnf_append "VBOX_WITH_AUDIO_ALSA" ""
-    fi
-    if [ $WITH_DBUS -eq 0 ]; then
-      cnf_append "VBOX_WITH_DBUS" ""
-    fi
     if [ $WITH_DEVMAPPER -eq 1 ]; then
       check_libdevmapper
     else