allow qt5 build

eigen.pri

@@ -67,7 +67,11 @@ isEmpty(EIGEN_INCLUDEPATH) {
 }
 
 # EIGEN being under 'include/eigen[2-3]' needs special prepending
-QMAKE_INCDIR_QT = $$EIGEN_INCLUDEPATH $$QMAKE_INCDIR_QT
+contains(QT_VERSION, ^5\\..*) {
+  QMAKE_INCDIR = $$EIGEN_INCLUDEPATH $$QMAKE_INCDIR
+} else {
+  QMAKE_INCDIR_QT = $$EIGEN_INCLUDEPATH $$QMAKE_INCDIR_QT
+}
 
 # qmakespecs on netbsd prepend system includes, we need eigen first. 
 netbsd* {

scripts/setenv-unibuild.sh

@@ -73,11 +73,33 @@ setenv_linux_clang()
  echo QMAKESPEC has been modified: $QMAKESPEC
 }
 
+setenv_qt5()
+{
+ export QTDIR=/opt/qt5
+ export PATH=$QTDIR/bin:$PATH
+ export LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH
+ export LD_RUN_PATH=$QTDIR/lib:$LD_RUN_PATH
+ if [ "`echo $CC | grep clang`" ]; then
+  if [ "`uname | grep -i linux\|debian`" ]; then
+   export QMAKESPEC=linux-clang
+   echo QMAKESPEC has been modified: $QMAKESPEC
+  fi
+ fi
+
+ echo PATH has been modified with $QTDIR/bin
+ echo LD_LIBRARY_PATH has been modified with $QTDIR/lib
+ echo LD_RUN_PATH has been modified with $QTDIR/lib
+ echo QTDIR has been modified: $QTDIR
+}
+
 if [ "`uname | grep -i 'linux\|debian'`" ]; then
  setenv_common
  if [ "`echo $* | grep clang`" ]; then
   setenv_linux_clang
  fi
+ if [ "`echo $* | grep qt5`" ]; then
+  setenv_qt5
+ fi
 elif [ "`uname | grep -i freebsd`" ]; then
  setenv_freebsd
 elif [ "`uname | grep -i netbsd`" ]; then

scripts/uni-build-dependencies.sh

@@ -31,6 +31,10 @@
 #
 #   . ./scripts/setenv-unibuild.sh clang
 #
+# Enable Qt5 (experimental)
+#
+#   . ./scripts/setenv-unibuild.sh qt5
+#
 
 printUsage()
 {