enable clang for freebsd (tested on freebsd 9)

libraries/MCAD

@@ -1 +1 @@
-Subproject commit 9a958fd11b0a6b5f8becd37c4f8a42f585abfcd8
+Subproject commit 1cc850b44914e1863adfaea2d6f9c848bbc514ea

scripts/setenv-unibuild.sh

@@ -43,9 +43,15 @@ setenv_common()
 
 setenv_freebsd()
 {
+ echo .... freebsd detected. 
+ echo .... if you have freebsd >9, it is advisable to install
+ echo .... the clang compiler and re-run this script as 
+ echo .... '. ./scripts/setenv-unibuild.sh clang'
  setenv_common
  QMAKESPEC=freebsd-g++
  QTDIR=/usr/local/share/qt4
+ export QMAKESPEC
+ export QTDIR
 }
 
 setenv_netbsd()
@@ -78,6 +84,17 @@ setenv_linux_clang()
  echo QMAKESPEC has been modified: $QMAKESPEC
 }
 
+setenv_freebsd_clang()
+{
+ export CC=clang
+ export CXX=clang++
+ export QMAKESPEC=freebsd-clang
+
+ echo CC has been modified: $CC
+ echo CXX has been modified: $CXX
+ echo QMAKESPEC has been modified: $QMAKESPEC
+}
+
 setenv_netbsd_clang()
 {
  echo --------------------- this is not yet supported. netbsd 6 lacks
@@ -141,6 +158,9 @@ if [ "`uname | grep -i 'linux\|debian'`" ]; then
  fi
 elif [ "`uname | grep -i freebsd`" ]; then
  setenv_freebsd
+ if [ "`echo $* | grep clang`" ]; then
+  setenv_freebsd_clang
+ fi
 elif [ "`uname | grep -i netbsd`" ]; then
  setenv_netbsd
  if [ "`echo $* | grep clang`" ]; then