diff --git a/Makefile b/Makefile
index abcb74d..b5a743e 100644
--- a/Makefile
+++ b/Makefile
@@ -4,24 +4,35 @@ SUBDIRS	= src/transport
 RM	= rm -f
 LN	= ln -f
 TAR	= tar
+TGZEXT	= .tar.gz
 MKDIR	= mkdir -m 0755 -p
 
 
 all: subdirs
 
 subdirs:
-	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE)) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && \
+		if [ -n "$(OBJDIR)" ]; then \
+		([ -d "$(OBJDIR)$$i" ] || $(MKDIR) -- "$(OBJDIR)$$i") && \
+		$(MAKE) OBJDIR="$(OBJDIR)$$i/"; \
+		else $(MAKE); fi) || exit; done
 
 clean:
-	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) clean) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && \
+		if [ -n "$(OBJDIR)" ]; then \
+		$(MAKE) OBJDIR="$(OBJDIR)$$i/" clean; \
+		else $(MAKE) clean; fi) || exit; done
 
 distclean:
-	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) distclean) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && \
+		if [ -n "$(OBJDIR)" ]; then \
+		$(MAKE) OBJDIR="$(OBJDIR)$$i/" distclean; \
+		else $(MAKE) distclean; fi) || exit; done
 
 dist:
-	$(RM) -r -- $(PACKAGE)-$(VERSION)
-	$(LN) -s -- . $(PACKAGE)-$(VERSION)
-	@$(TAR) -czvf $(PACKAGE)-$(VERSION).tar.gz -- \
+	$(RM) -r -- $(OBJDIR)$(PACKAGE)-$(VERSION)
+	$(LN) -s -- "$$PWD" $(OBJDIR)$(PACKAGE)-$(VERSION)
+	@cd $(OBJDIR). && $(TAR) -czvf $(PACKAGE)-$(VERSION)$(TGZEXT) -- \
 		$(PACKAGE)-$(VERSION)/src/transport/ssl.c \
 		$(PACKAGE)-$(VERSION)/src/transport/ssl4.c \
 		$(PACKAGE)-$(VERSION)/src/transport/ssl6.c \
@@ -32,23 +43,29 @@ dist:
 		$(PACKAGE)-$(VERSION)/COPYING \
 		$(PACKAGE)-$(VERSION)/Makefile \
 		$(PACKAGE)-$(VERSION)/project.conf
-	$(RM) -- $(PACKAGE)-$(VERSION)
+	$(RM) -- $(OBJDIR)$(PACKAGE)-$(VERSION)
 
 distcheck: dist
-	$(TAR) -xzvf $(PACKAGE)-$(VERSION).tar.gz
+	$(TAR) -xzvf $(OBJDIR)$(PACKAGE)-$(VERSION)$(TGZEXT)
 	$(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)" && $(MAKE) dist)
+	cd "$(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 "$$i" && $(MAKE) install) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && \
+		if [ -n "$(OBJDIR)" ]; then \
+		$(MAKE) OBJDIR="$(OBJDIR)$$i/" install; \
+		else $(MAKE) install; fi) || exit; done
 
 uninstall:
-	@for i in $(SUBDIRS); do (cd "$$i" && $(MAKE) uninstall) || exit; done
+	@for i in $(SUBDIRS); do (cd "$$i" && \
+		if [ -n "$(OBJDIR)" ]; then \
+		$(MAKE) OBJDIR="$(OBJDIR)$$i/" uninstall; \
+		else $(MAKE) uninstall; fi) || exit; done
 
 .PHONY: all subdirs clean distclean dist distcheck install uninstall
diff --git a/src/transport/Makefile b/src/transport/Makefile
index 125c653..274448c 100644
--- a/src/transport/Makefile
+++ b/src/transport/Makefile
@@ -1,4 +1,4 @@
-TARGETS	= $(OBJDIR)ssl.so $(OBJDIR)ssl4.so $(OBJDIR)ssl6.so
+TARGETS	= $(OBJDIR)ssl$(SOEXT) $(OBJDIR)ssl4$(SOEXT) $(OBJDIR)ssl6$(SOEXT)
 OBJDIR	=
 PREFIX	= /usr/local
 DESTDIR	=
@@ -9,9 +9,12 @@ CPPFLAGS=
 CFLAGSF	= -W -fPIC `pkg-config --cflags libApp`
 CFLAGS	= -Wall -g -O2 -pedantic
 LDFLAGSF= `pkg-config --libs libApp`
+EXEEXT	=
 AR	= ar
+ARFLAGS	= -rc
 RANLIB	= ranlib
 CCSHARED= $(CC) -shared
+SOEXT	= .so
 RM	= rm -f
 LN	= ln -f
 MKDIR	= mkdir -m 0755 -p
@@ -24,22 +27,22 @@ ssl_OBJS = $(OBJDIR)ssl.o
 ssl_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 ssl_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
-$(OBJDIR)ssl.so: $(ssl_OBJS)
-	$(CCSHARED) -o $(OBJDIR)ssl.so $(ssl_OBJS) $(ssl_LDFLAGS)
+$(OBJDIR)ssl$(SOEXT): $(ssl_OBJS)
+	$(CCSHARED) -o $(OBJDIR)ssl$(SOEXT) $(ssl_OBJS) $(ssl_LDFLAGS)
 
 ssl4_OBJS = $(OBJDIR)ssl4.o
 ssl4_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 ssl4_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
-$(OBJDIR)ssl4.so: $(ssl4_OBJS)
-	$(CCSHARED) -o $(OBJDIR)ssl4.so $(ssl4_OBJS) $(ssl4_LDFLAGS)
+$(OBJDIR)ssl4$(SOEXT): $(ssl4_OBJS)
+	$(CCSHARED) -o $(OBJDIR)ssl4$(SOEXT) $(ssl4_OBJS) $(ssl4_LDFLAGS)
 
 ssl6_OBJS = $(OBJDIR)ssl6.o
 ssl6_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 ssl6_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
 
-$(OBJDIR)ssl6.so: $(ssl6_OBJS)
-	$(CCSHARED) -o $(OBJDIR)ssl6.so $(ssl6_OBJS) $(ssl6_LDFLAGS)
+$(OBJDIR)ssl6$(SOEXT): $(ssl6_OBJS)
+	$(CCSHARED) -o $(OBJDIR)ssl6$(SOEXT) $(ssl6_OBJS) $(ssl6_LDFLAGS)
 
 $(OBJDIR)ssl.o: ssl.c common.h common.c
 	$(CC) $(ssl_CFLAGS) -o $(OBJDIR)ssl.o -c ssl.c
@@ -58,15 +61,15 @@ distclean: clean
 
 install: $(TARGETS)
 	$(MKDIR) $(DESTDIR)$(LIBDIR)/App/transport
-	$(INSTALL) -m 0755 $(OBJDIR)ssl.so $(DESTDIR)$(LIBDIR)/App/transport/ssl.so
+	$(INSTALL) -m 0755 $(OBJDIR)ssl$(SOEXT) $(DESTDIR)$(LIBDIR)/App/transport/ssl$(SOEXT)
 	$(MKDIR) $(DESTDIR)$(LIBDIR)/App/transport
-	$(INSTALL) -m 0755 $(OBJDIR)ssl4.so $(DESTDIR)$(LIBDIR)/App/transport/ssl4.so
+	$(INSTALL) -m 0755 $(OBJDIR)ssl4$(SOEXT) $(DESTDIR)$(LIBDIR)/App/transport/ssl4$(SOEXT)
 	$(MKDIR) $(DESTDIR)$(LIBDIR)/App/transport
-	$(INSTALL) -m 0755 $(OBJDIR)ssl6.so $(DESTDIR)$(LIBDIR)/App/transport/ssl6.so
+	$(INSTALL) -m 0755 $(OBJDIR)ssl6$(SOEXT) $(DESTDIR)$(LIBDIR)/App/transport/ssl6$(SOEXT)
 
 uninstall:
-	$(RM) -- $(DESTDIR)$(LIBDIR)/App/transport/ssl.so
-	$(RM) -- $(DESTDIR)$(LIBDIR)/App/transport/ssl4.so
-	$(RM) -- $(DESTDIR)$(LIBDIR)/App/transport/ssl6.so
+	$(RM) -- $(DESTDIR)$(LIBDIR)/App/transport/ssl$(SOEXT)
+	$(RM) -- $(DESTDIR)$(LIBDIR)/App/transport/ssl4$(SOEXT)
+	$(RM) -- $(DESTDIR)$(LIBDIR)/App/transport/ssl6$(SOEXT)
 
 .PHONY: all clean distclean install uninstall