diff --git a/Makefile b/Makefile
index 35bf11d..7851b33 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,7 @@
 PACKAGE	= libSystem
 VERSION	= 0.2.0
 SUBDIRS	= data doc include src tests tools
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 MKDIR	= mkdir -m 0755 -p
@@ -8,7 +9,8 @@ INSTALL	= install
 RM	= rm -f
 RM	= rm -f
 LN	= ln -f
-TAR	= tar -czvf
+TAR	= tar
+MKDIR	= mkdir -m 0755 -p
 
 
 all: subdirs
@@ -25,7 +27,7 @@ distclean:
 dist:
 	$(RM) -r -- $(PACKAGE)-$(VERSION)
 	$(LN) -s -- . $(PACKAGE)-$(VERSION)
-	@$(TAR) $(PACKAGE)-$(VERSION).tar.gz -- \
+	@$(TAR) -czvf $(PACKAGE)-$(VERSION).tar.gz -- \
 		$(PACKAGE)-$(VERSION)/data/Makefile \
 		$(PACKAGE)-$(VERSION)/data/libSystem.pc.in \
 		$(PACKAGE)-$(VERSION)/data/pkgconfig.sh \
@@ -115,6 +117,17 @@ dist:
 		$(PACKAGE)-$(VERSION)/project.conf
 	$(RM) -- $(PACKAGE)-$(VERSION)
 
+distcheck: dist
+	$(TAR) -xzvf $(PACKAGE)-$(VERSION).tar.gz
+	$(MKDIR) -- $(PACKAGE)-$(VERSION)/objdir
+	$(MKDIR) -- $(PACKAGE)-$(VERSION)/destdir
+	(cd "$(PACKAGE)-$(VERSION)" && $(MAKE) OBJDIR="$$PWD/objdir/")
+	(cd "$(PACKAGE)-$(VERSION)" && $(MAKE) OBJDIR="$$PWD/objdir/" DESTDIR="$$PWD/destdir" install)
+	(cd "$(PACKAGE)-$(VERSION)" && $(MAKE) OBJDIR="$$PWD/objdir/" DESTDIR="$$PWD/destdir" uninstall)
+	(cd "$(PACKAGE)-$(VERSION)" && $(MAKE) OBJDIR="$$PWD/objdir/" distclean)
+	(cd "$(PACKAGE)-$(VERSION)" && $(MAKE) dist)
+	$(RM) -r -- $(PACKAGE)-$(VERSION)
+
 install:
 	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) install) || exit; done
 	$(MKDIR) $(DESTDIR)$(PREFIX)/share/doc/$(PACKAGE)
@@ -124,4 +137,4 @@ uninstall:
 	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) uninstall) || exit; done
 	$(RM) -- $(DESTDIR)$(PREFIX)/share/doc/$(PACKAGE)/README.md
 
-.PHONY: all subdirs clean distclean dist install uninstall
+.PHONY: all subdirs clean distclean dist distcheck install uninstall
diff --git a/data/Makefile b/data/Makefile
index 44db5bf..a555bae 100644
--- a/data/Makefile
+++ b/data/Makefile
@@ -1,4 +1,5 @@
-TARGETS	= libSystem.pc
+TARGETS	= $(OBJDIR)libSystem.pc
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 RM	= rm -f
@@ -9,8 +10,8 @@ INSTALL	= install
 
 all: $(TARGETS)
 
-libSystem.pc: libSystem.pc.in ../config.sh
-	./pkgconfig.sh -P "$(PREFIX)" -- "libSystem.pc"
+$(OBJDIR)libSystem.pc: libSystem.pc.in ../config.sh
+	./pkgconfig.sh -P "$(PREFIX)" -- "$(OBJDIR)libSystem.pc"
 
 clean:
 	$(RM) -- $(libSystem.pc_OBJS)
@@ -20,7 +21,7 @@ distclean: clean
 	$(RM) -- $(TARGETS)
 
 install: $(TARGETS)
-	./pkgconfig.sh -P "$(DESTDIR)$(PREFIX)" -i -- "libSystem.pc"
+	./pkgconfig.sh -P "$(DESTDIR)$(PREFIX)" -i -- "$(OBJDIR)libSystem.pc"
 
 uninstall:
 	./pkgconfig.sh -P "$(DESTDIR)$(PREFIX)" -u -- "libSystem.pc"
diff --git a/data/pkgconfig.sh b/data/pkgconfig.sh
index 5482795..95a0ac9 100755
--- a/data/pkgconfig.sh
+++ b/data/pkgconfig.sh
@@ -119,8 +119,9 @@ while [ $# -gt 0 ]; do
 
 	#install
 	if [ "$install" -eq 1 ]; then
+		source="${target#$OBJDIR}"
 		$DEBUG $MKDIR -- "$PKGCONFIG"			|| exit 2
-		$DEBUG $INSTALL "$target" "$PKGCONFIG/$target"	|| exit 2
+		$DEBUG $INSTALL "$target" "$PKGCONFIG/$source"	|| exit 2
 		continue
 	fi
 
@@ -129,18 +130,23 @@ while [ $# -gt 0 ]; do
 	if [ "$PREFIX" != "/usr" ]; then
 		RPATH="-Wl,-rpath-link,\${libdir} -Wl,-rpath,\${libdir}"
 		case $(uname -s) in
-			Darwin|SunOS)
+			Darwin)
 				RPATH="-Wl,-rpath,\${libdir}"
 				;;
+			SunOS)
+				RPATH="-Wl,-R\${libdir}"
+				;;
 		esac
 	fi
 
 	#create
+	source="${target#$OBJDIR}"
+	source="${source}.in"
 	$DEBUG $SED -e "s;@PACKAGE@;$PACKAGE;" \
 			-e "s;@VERSION@;$VERSION;" \
 			-e "s;@PREFIX@;$PREFIX;" \
 			-e "s;@RPATH@;$RPATH;" \
-			-- "$target.in" > "$target"
+			-- "$source" > "$target"
 	if [ $? -ne 0 ]; then
 		$DEBUG $RM -- "$target"
 		exit 2
diff --git a/doc/Makefile b/doc/Makefile
index 46a7940..8fc7f97 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,5 +1,6 @@
 SUBDIRS	= gtkdoc
-TARGETS	= configctl.1 configctl.html gtkdoc/libSystem.types gtkdoc/tmpl.stamp gtkdoc/sgml.stamp gtkdoc/html.stamp
+TARGETS	= $(OBJDIR)configctl.1 $(OBJDIR)configctl.html $(OBJDIR)gtkdoc/libSystem.types $(OBJDIR)gtkdoc/tmpl.stamp $(OBJDIR)gtkdoc/sgml.stamp $(OBJDIR)gtkdoc/html.stamp
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 RM	= rm -f
@@ -13,23 +14,23 @@ all: subdirs $(TARGETS)
 subdirs:
 	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE)) || exit; done
 
-configctl.1: configctl.xml
-	./docbook.sh -P "$(PREFIX)" -- "configctl.1"
+$(OBJDIR)configctl.1: configctl.xml
+	./docbook.sh -P "$(PREFIX)" -- "$(OBJDIR)configctl.1"
 
-configctl.html: configctl.css.xml configctl.xml manual.css.xml
-	./docbook.sh -P "$(PREFIX)" -- "configctl.html"
+$(OBJDIR)configctl.html: configctl.css.xml configctl.xml manual.css.xml
+	./docbook.sh -P "$(PREFIX)" -- "$(OBJDIR)configctl.html"
 
-gtkdoc/libSystem.types:
-	./gtkdoc.sh -P "$(PREFIX)" -- "gtkdoc/libSystem.types"
+$(OBJDIR)gtkdoc/libSystem.types:
+	./gtkdoc.sh -P "$(PREFIX)" -- "$(OBJDIR)gtkdoc/libSystem.types"
 
-gtkdoc/tmpl.stamp: gtkdoc/libSystem.types
-	./gtkdoc.sh -P "$(PREFIX)" -- "gtkdoc/tmpl.stamp"
+$(OBJDIR)gtkdoc/tmpl.stamp: gtkdoc/libSystem.types
+	./gtkdoc.sh -P "$(PREFIX)" -- "$(OBJDIR)gtkdoc/tmpl.stamp"
 
-gtkdoc/sgml.stamp: gtkdoc/tmpl.stamp
-	./gtkdoc.sh -P "$(PREFIX)" -- "gtkdoc/sgml.stamp"
+$(OBJDIR)gtkdoc/sgml.stamp: gtkdoc/tmpl.stamp
+	./gtkdoc.sh -P "$(PREFIX)" -- "$(OBJDIR)gtkdoc/sgml.stamp"
 
-gtkdoc/html.stamp: gtkdoc/libSystem-docs.xml gtkdoc/sgml.stamp gtkdoc/tmpl.stamp
-	./gtkdoc.sh -P "$(PREFIX)" -- "gtkdoc/html.stamp"
+$(OBJDIR)gtkdoc/html.stamp: gtkdoc/libSystem-docs.xml gtkdoc/sgml.stamp gtkdoc/tmpl.stamp
+	./gtkdoc.sh -P "$(PREFIX)" -- "$(OBJDIR)gtkdoc/html.stamp"
 
 clean:
 	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) clean) || exit; done
@@ -54,9 +55,9 @@ distclean:
 
 install: $(TARGETS)
 	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) install) || exit; done
-	./docbook.sh -P "$(DESTDIR)$(PREFIX)" -i -- "configctl.1"
-	./docbook.sh -P "$(DESTDIR)$(PREFIX)" -i -- "configctl.html"
-	./gtkdoc.sh -P "$(DESTDIR)$(PREFIX)" -i -- "gtkdoc/html.stamp"
+	./docbook.sh -P "$(DESTDIR)$(PREFIX)" -i -- "$(OBJDIR)configctl.1"
+	./docbook.sh -P "$(DESTDIR)$(PREFIX)" -i -- "$(OBJDIR)configctl.html"
+	./gtkdoc.sh -P "$(DESTDIR)$(PREFIX)" -i -- "$(OBJDIR)gtkdoc/html.stamp"
 
 uninstall:
 	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) uninstall) || exit; done
diff --git a/doc/docbook.sh b/doc/docbook.sh
index 0caaa39..4ac88b6 100755
--- a/doc/docbook.sh
+++ b/doc/docbook.sh
@@ -51,7 +51,8 @@ _docbook()
 {
 	target="$1"
 
-	source="${target%.*}.xml"
+	source="${target#$OBJDIR}"
+	source="${source%.*}.xml"
 	ext="${target##*.}"
 	ext="${ext##.}"
 	case "$ext" in
@@ -153,7 +154,8 @@ while [ $# -gt 0 ]; do
 	case "$ext" in
 		html)
 			instdir="$DATADIR/doc/$ext/$PACKAGE"
-			source="${target%.*}.xml"
+			source="${target#$OBJDIR}"
+			source="${source%.*}.xml"
 			xpath="string(/refentry/refmeta/manvolnum)"
 			section=$($XMLLINT --xpath "$xpath" "$source")
 			if [ $? -eq 0 -a -n "$section" ]; then
@@ -177,14 +179,16 @@ while [ $# -gt 0 ]; do
 
 	#uninstall
 	if [ "$uninstall" -eq 1 ]; then
+		target="${target#$OBJDIR}"
 		$DEBUG $RM -- "$instdir/$target"		|| exit 2
 		continue
 	fi
 
 	#install
 	if [ "$install" -eq 1 ]; then
+		source="${target#$OBJDIR}"
 		$DEBUG $MKDIR -- "$instdir"			|| exit 2
-		$DEBUG $INSTALL "$target" "$instdir/$target"	|| exit 2
+		$DEBUG $INSTALL "$target" "$instdir/$source"	|| exit 2
 		continue
 	fi
 
diff --git a/include/Makefile b/include/Makefile
index 6213adb..a85a4be 100644
--- a/include/Makefile
+++ b/include/Makefile
@@ -1,4 +1,5 @@
 SUBDIRS	= System
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 RM	= rm -f
diff --git a/include/System/Makefile b/include/System/Makefile
index e9d09fc..060942b 100644
--- a/include/System/Makefile
+++ b/include/System/Makefile
@@ -1,3 +1,4 @@
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 RM	= rm -f
diff --git a/src/Makefile b/src/Makefile
index 513d206..0cec840 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,4 +1,5 @@
-TARGETS	= libSystem.a libSystem.so.0.0 libSystem.so.0 libSystem.so
+TARGETS	= $(OBJDIR)libSystem.a $(OBJDIR)libSystem.so.0.0 $(OBJDIR)libSystem.so.0 $(OBJDIR)libSystem.so
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 LIBDIR	= $(PREFIX)/lib
@@ -19,57 +20,57 @@ INSTALL	= install
 
 all: $(TARGETS)
 
-libSystem_OBJS = array.o buffer.o config.o error.o event.o hash.o mutator.o object.o parser.o plugin.o string.o token.o variable.o
+libSystem_OBJS = $(OBJDIR)array.o $(OBJDIR)buffer.o $(OBJDIR)config.o $(OBJDIR)error.o $(OBJDIR)event.o $(OBJDIR)hash.o $(OBJDIR)mutator.o $(OBJDIR)object.o $(OBJDIR)parser.o $(OBJDIR)plugin.o $(OBJDIR)string.o $(OBJDIR)token.o $(OBJDIR)variable.o
 libSystem_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 libSystem_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)   
 
-libSystem.a: $(libSystem_OBJS)
-	$(AR) -rc libSystem.a $(libSystem_OBJS)
-	$(RANLIB) libSystem.a
+$(OBJDIR)libSystem.a: $(libSystem_OBJS)
+	$(AR) -rc $(OBJDIR)libSystem.a $(libSystem_OBJS)
+	$(RANLIB) $(OBJDIR)libSystem.a
 
-libSystem.so.0.0 libSystem.so.0 libSystem.so: $(libSystem_OBJS)
-	$(CCSHARED) -o libSystem.so.0.0 -Wl,-soname,libSystem.so.0 $(libSystem_OBJS) $(libSystem_LDFLAGS)
-	$(LN) -s -- libSystem.so.0.0 libSystem.so.0
-	$(LN) -s -- libSystem.so.0.0 libSystem.so
+$(OBJDIR)libSystem.so.0.0 $(OBJDIR)libSystem.so.0 $(OBJDIR)libSystem.so: $(libSystem_OBJS)
+	$(CCSHARED) -o $(OBJDIR)libSystem.so.0.0 -Wl,-soname,libSystem.so.0 $(libSystem_OBJS) $(libSystem_LDFLAGS)
+	$(LN) -s -- libSystem.so.0.0 $(OBJDIR)libSystem.so.0
+	$(LN) -s -- libSystem.so.0.0 $(OBJDIR)libSystem.so
 
-array.o: array.c
-	$(CC) $(libSystem_CFLAGS) -c array.c
+$(OBJDIR)array.o: array.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)array.o -c array.c
 
-buffer.o: buffer.c
-	$(CC) $(libSystem_CFLAGS) -c buffer.c
+$(OBJDIR)buffer.o: buffer.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)buffer.o -c buffer.c
 
-config.o: config.c
-	$(CC) $(libSystem_CFLAGS) -c config.c
+$(OBJDIR)config.o: config.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)config.o -c config.c
 
-error.o: error.c
-	$(CC) $(libSystem_CFLAGS) -c error.c
+$(OBJDIR)error.o: error.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)error.o -c error.c
 
-event.o: event.c
-	$(CC) $(libSystem_CFLAGS) -c event.c
+$(OBJDIR)event.o: event.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)event.o -c event.c
 
-hash.o: hash.c
-	$(CC) $(libSystem_CFLAGS) -c hash.c
+$(OBJDIR)hash.o: hash.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)hash.o -c hash.c
 
-mutator.o: mutator.c
-	$(CC) $(libSystem_CFLAGS) -c mutator.c
+$(OBJDIR)mutator.o: mutator.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)mutator.o -c mutator.c
 
-object.o: object.c
-	$(CC) $(libSystem_CFLAGS) -c object.c
+$(OBJDIR)object.o: object.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)object.o -c object.c
 
-parser.o: parser.c token.h
-	$(CC) $(libSystem_CFLAGS) -c parser.c
+$(OBJDIR)parser.o: parser.c token.h
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)parser.o -c parser.c
 
-plugin.o: plugin.c
-	$(CC) $(libSystem_CFLAGS) -c plugin.c
+$(OBJDIR)plugin.o: plugin.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)plugin.o -c plugin.c
 
-string.o: string.c
-	$(CC) $(libSystem_CFLAGS) -c string.c
+$(OBJDIR)string.o: string.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)string.o -c string.c
 
-token.o: token.c token.h
-	$(CC) $(libSystem_CFLAGS) -c token.c
+$(OBJDIR)token.o: token.c token.h
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)token.o -c token.c
 
-variable.o: variable.c
-	$(CC) $(libSystem_CFLAGS) -c variable.c
+$(OBJDIR)variable.o: variable.c
+	$(CC) $(libSystem_CFLAGS) -o $(OBJDIR)variable.o -c variable.c
 
 clean:
 	$(RM) -- $(libSystem_OBJS)
@@ -79,8 +80,8 @@ distclean: clean
 
 install: $(TARGETS)
 	$(MKDIR) $(DESTDIR)$(LIBDIR)
-	$(INSTALL) -m 0644 libSystem.a $(DESTDIR)$(LIBDIR)/libSystem.a
-	$(INSTALL) -m 0755 libSystem.so.0.0 $(DESTDIR)$(LIBDIR)/libSystem.so.0.0
+	$(INSTALL) -m 0644 $(OBJDIR)libSystem.a $(DESTDIR)$(LIBDIR)/libSystem.a
+	$(INSTALL) -m 0755 $(OBJDIR)libSystem.so.0.0 $(DESTDIR)$(LIBDIR)/libSystem.so.0.0
 	$(LN) -s -- libSystem.so.0.0 $(DESTDIR)$(LIBDIR)/libSystem.so.0
 	$(LN) -s -- libSystem.so.0.0 $(DESTDIR)$(LIBDIR)/libSystem.so
 
diff --git a/src/python/Makefile b/src/python/Makefile
index 35f5fd1..4f5c1fc 100644
--- a/src/python/Makefile
+++ b/src/python/Makefile
@@ -1,7 +1,8 @@
-MKDIR	= mkdir -p
+MKDIR	= mkdir -m 0755 -p
 INSTALL	= install
 RM	= rm -f
-TARGETS	= _libSystem.so
+TARGETS	= $(OBJDIR)_libSystem.so
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 LIBDIR	= $(PREFIX)/lib
@@ -17,21 +18,21 @@ RANLIB	= ranlib
 CCSHARED= $(CC) -shared
 RM	= rm -f
 LN	= ln -f
-MKDIR	= mkdir -p
+MKDIR	= mkdir -m 0755 -p
 INSTALL	= install
 
 
 all: $(TARGETS)
 
-_libSystem_OBJS = libSystem.o
+_libSystem_OBJS = $(OBJDIR)libSystem.o
 _libSystem_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 _libSystem_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
-_libSystem.so: $(_libSystem_OBJS)
-	$(CCSHARED) -o _libSystem.so $(_libSystem_OBJS) $(_libSystem_LDFLAGS)
+$(OBJDIR)_libSystem.so: $(_libSystem_OBJS)
+	$(CCSHARED) -o $(OBJDIR)_libSystem.so $(_libSystem_OBJS) $(_libSystem_LDFLAGS)
 
-libSystem.o: libSystem.c
-	$(CC) $(_libSystem_CFLAGS) -c libSystem.c
+$(OBJDIR)libSystem.o: libSystem.c
+	$(CC) $(_libSystem_CFLAGS) -o $(OBJDIR)libSystem.o -c libSystem.c
 
 clean:
 	$(RM) -- $(_libSystem_OBJS)
@@ -41,9 +42,9 @@ distclean: clean
 
 install: $(TARGETS)
 	$(MKDIR) $(DESTDIR)$(PREFIX)/lib/python2.7/site-packages
-	$(INSTALL) -m 0644 -- _libSystem.so $(DESTDIR)$(PREFIX)/lib/python2.7/site-packages/_libSystem.so
+	$(INSTALL) -m 0755 $(OBJDIR)_libSystem.so $(DESTDIR)$(PREFIX)/lib/python2.7/site-packages/_libSystem.so
 	$(MKDIR) $(DESTDIR)$(PREFIX)/lib/python2.7/site-packages
-	$(INSTALL) -m 0644 -- libSystem.py $(DESTDIR)$(PREFIX)/lib/python2.7/site-packages/libSystem.py
+	$(INSTALL) -m 0644 libSystem.py $(DESTDIR)$(PREFIX)/lib/python2.7/site-packages/libSystem.py
 
 uninstall:
 	$(RM) -- $(DESTDIR)$(PREFIX)/lib/python2.7/site-packages/_libSystem.so
diff --git a/tests/Makefile b/tests/Makefile
index f445583..9f86e9e 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,4 +1,5 @@
-TARGETS	= includes string variable tests.log
+TARGETS	= $(OBJDIR)includes $(OBJDIR)string $(OBJDIR)variable $(OBJDIR)tests.log
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 BINDIR	= $(PREFIX)/bin
@@ -18,38 +19,38 @@ INSTALL	= install
 
 all: $(TARGETS)
 
-includes_OBJS = includes.o
+includes_OBJS = $(OBJDIR)includes.o
 includes_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 includes_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
-includes: $(includes_OBJS)
-	$(CC) -o includes $(includes_OBJS) $(includes_LDFLAGS)
+$(OBJDIR)includes: $(includes_OBJS)
+	$(CC) -o $(OBJDIR)includes $(includes_OBJS) $(includes_LDFLAGS)
 
-string_OBJS = string.o
+string_OBJS = $(OBJDIR)string.o
 string_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 string_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
-string: $(string_OBJS)
-	$(CC) -o string $(string_OBJS) $(string_LDFLAGS)
+$(OBJDIR)string: $(string_OBJS)
+	$(CC) -o $(OBJDIR)string $(string_OBJS) $(string_LDFLAGS)
 
-variable_OBJS = variable.o
+variable_OBJS = $(OBJDIR)variable.o
 variable_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 variable_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
-variable: $(variable_OBJS)
-	$(CC) -o variable $(variable_OBJS) $(variable_LDFLAGS)
+$(OBJDIR)variable: $(variable_OBJS)
+	$(CC) -o $(OBJDIR)variable $(variable_OBJS) $(variable_LDFLAGS)
 
-tests.log: includes python.sh string tests.sh variable
-	./tests.sh -P "$(PREFIX)" -- "tests.log"
+$(OBJDIR)tests.log: includes python.sh string tests.sh variable
+	./tests.sh -P "$(PREFIX)" -- "$(OBJDIR)tests.log"
 
-includes.o: includes.c
-	$(CC) $(includes_CFLAGS) -c includes.c
+$(OBJDIR)includes.o: includes.c
+	$(CC) $(includes_CFLAGS) -o $(OBJDIR)includes.o -c includes.c
 
-string.o: string.c ../src/string.c
-	$(CC) $(string_CFLAGS) -c string.c
+$(OBJDIR)string.o: string.c ../src/string.c
+	$(CC) $(string_CFLAGS) -o $(OBJDIR)string.o -c string.c
 
-variable.o: variable.c ../src/variable.c
-	$(CC) $(variable_CFLAGS) -c variable.c
+$(OBJDIR)variable.o: variable.c ../src/variable.c
+	$(CC) $(variable_CFLAGS) -o $(OBJDIR)variable.o -c variable.c
 
 clean:
 	$(RM) -- $(includes_OBJS) $(string_OBJS) $(variable_OBJS) $(tests.log_OBJS)
diff --git a/tests/python.sh b/tests/python.sh
index 19561ed..2a2463b 100755
--- a/tests/python.sh
+++ b/tests/python.sh
@@ -17,8 +17,9 @@
 
 
 #variables
+PYTHONDIR="../src/python"
 #executables
 MAKE="make"
 
 
-(cd ../src/python && $MAKE clean all)
+(cd "$PYTHONDIR" && $MAKE clean all)
diff --git a/tools/Makefile b/tools/Makefile
index adae099..7a659da 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -1,4 +1,5 @@
-TARGETS	= configctl
+TARGETS	= $(OBJDIR)configctl
+OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
 BINDIR	= $(PREFIX)/bin
@@ -8,7 +9,7 @@ CPPFLAGSF= -I ../include
 CPPFLAGS=
 CFLAGSF	= -W
 CFLAGS	= -Wall -g -O2 -pedantic
-LDFLAGSF= -L../src -Wl,-rpath,$(PREFIX)/lib -lSystem
+LDFLAGSF= -L../src -L$(OBJDIR). -Wl,-rpath,$(PREFIX)/lib -lSystem
 RM	= rm -f
 LN	= ln -f
 MKDIR	= mkdir -m 0755 -p
@@ -17,15 +18,15 @@ INSTALL	= install
 
 all: $(TARGETS)
 
-configctl_OBJS = configctl.o
+configctl_OBJS = $(OBJDIR)configctl.o
 configctl_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 configctl_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
-configctl: $(configctl_OBJS)
-	$(CC) -o configctl $(configctl_OBJS) $(configctl_LDFLAGS)
+$(OBJDIR)configctl: $(configctl_OBJS)
+	$(CC) -o $(OBJDIR)configctl $(configctl_OBJS) $(configctl_LDFLAGS)
 
-configctl.o: configctl.c
-	$(CC) $(configctl_CFLAGS) -c configctl.c
+$(OBJDIR)configctl.o: configctl.c
+	$(CC) $(configctl_CFLAGS) -o $(OBJDIR)configctl.o -c configctl.c
 
 clean:
 	$(RM) -- $(configctl_OBJS)
@@ -35,7 +36,7 @@ distclean: clean
 
 install: $(TARGETS)
 	$(MKDIR) $(DESTDIR)$(BINDIR)
-	$(INSTALL) -m 0755 configctl $(DESTDIR)$(BINDIR)/configctl
+	$(INSTALL) -m 0755 $(OBJDIR)configctl $(DESTDIR)$(BINDIR)/configctl
 
 uninstall:
 	$(RM) -- $(DESTDIR)$(BINDIR)/configctl
diff --git a/tools/project.conf b/tools/project.conf
index b72870f..26ce193 100644
--- a/tools/project.conf
+++ b/tools/project.conf
@@ -3,7 +3,7 @@ cppflags_force=-I ../include
 cppflags=
 cflags_force=-W
 cflags=-Wall -g -O2 -pedantic
-ldflags_force=-L../src -Wl,-rpath,$(PREFIX)/lib -lSystem
+ldflags_force=-L../src -L$(OBJDIR). -Wl,-rpath,$(PREFIX)/lib -lSystem
 dist=COPYING,Makefile
 
 [configctl]