diff --git a/BaseBuild/Basesys/mpfr b/BaseBuild/Basesys/mpfr
index e006151..a9cbd1e 100644
--- a/BaseBuild/Basesys/mpfr
+++ b/BaseBuild/Basesys/mpfr
@@ -69,9 +69,6 @@
 #Pfad zum Basis-Sourcetree :
 SRCPATH=Base/lib
 
-(( MKPKG = $MKPKG | 8 ))
-(( MKPKG = $MKPKG | 16 ))
-
 #Wenn das usgepackte Verzeichnis vom Paketnamen unterschiedlich ist
 #SRCDIR=<PFAD>
 
@@ -89,7 +86,7 @@ mk32() {
 			   --enable-shared
 	make -j $NUMCPU
 	MakeCheck check
-	make -j $NUMCPU install
+	make -j $NUMCPU DESTDIR=$TMPROOT install
 	cd ../mpfr*
 	rm -r ../build-mpfr
 	mkdir ../build-mpfr
@@ -119,7 +116,7 @@ mk() {
 	
 	MakeCheck check
 	# Make install Optionen eintragen
-	make -j $NUMCPU install
+	make -j $NUMCPU DESTDIR=$TMPROOT install
 	CheckError "Make install process failed !" 1
 }