diff --git a/SysBuild/development/ddd b/SysBuild/development/ddd
index bff94f5..dd2dd9d 100644
--- a/SysBuild/development/ddd
+++ b/SysBuild/development/ddd
@@ -89,7 +89,7 @@ mk() {
 		    --prefix=/usr/X11R7
 	cp /usr/X11R7/include/Xm/XmP.h{,.orig}
 	sed -i -e "s%\(#include <Xm/VendorSP.h>\)%//\1%" /usr/X11R7/include/Xm/XmP.h
-	make -j $NUMCPU LIBXM=/usr/X11R7/lib64/libXm.so
+	make -j $NUMCPU LIBXM=/usr/X11R7/$LIBDIR/libXm.so
 	make -j $NUMCPU DESTDIR=$TMPROOT install
 	mv /usr/X11R7/include/Xm/XmP.h.orig /usr/X11R7/include/Xm/XmP.h
 }
diff --git a/SysBuild/guibased/nedit b/SysBuild/guibased/nedit
index e406985..84601a6 100644
--- a/SysBuild/guibased/nedit
+++ b/SysBuild/guibased/nedit
@@ -83,7 +83,7 @@ mk() {
 	yes|make -j $NUMCPU \
 	         CC="gcc $BUILDOPTIONS -I/usr/X11R7/include" \
 		 CXX="g++ $BUILDOPTIONS -I/usr/X11R7/include" \
-		 CFLAGS="-DBUILD_UNTESTED_NEDIT -L/usr/X11R7/lib64" \
+		 CFLAGS="-DBUILD_UNTESTED_NEDIT -L/usr/X11R7/$LIBDIR" \
 		 linux
 	mkdir -p $TMPROOT/usr/X11R7/bin $TMPROOT/usr/X11R7/man/man1
 	cp source/nedit $TMPROOT/usr/X11R7/bin