diff --git a/Makefile.in b/Makefile.in
index 3e0459116..b2e09fc30 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -75,10 +75,10 @@ OBJS = main.o nmap.o targets.o tcpip.o nmap_error.o utils.o idle_scan.o osscan.o
 .cc.o:
 	$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o $@
 
-all: @LUA_DEPENDS@ @PCAP_DEPENDS@ @PCRE_DEPENDS@ @DNET_DEPENDS@ $(NBASEDIR)/libnbase.a $(NSOCKDIR)/src/libnsock.a $(NSESTDLIB)
-	$(MAKE) $(TARGET) $(BUILDZENMAP)
+all: @LUA_BUILD@ @PCAP_BUILD@ @PCRE_BUILD@ @DNET_BUILD@ @NBASE_BUILD@ @NSOCK_BUILD@
+	$(MAKE) $(TARGET) $(NSESTDLIB) $(BUILDZENMAP)
 
-$(TARGET): $(OBJS)
+$(TARGET): @LUA_DEPENDS@ @PCAP_DEPENDS@ @PCRE_DEPENDS@ @DNET_DEPENDS@ $(NBASEDIR)/libnbase.a $(NSOCKDIR)/src/libnsock.a $(OBJS)
 	echo Compiling nmap
 	rm -f $@
 	$(CXX) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
@@ -87,28 +87,24 @@ nsestdlib: nselib/Makefile
 	@echo Compiling nse-standard-library; cd nselib && $(MAKE)
 
 
-# This empty rule is used to force execution of certain rules where I can't conveniently specify
-# all of the prerequisites (e.g. recursive makes and such)
-FORCE:
-
-$(LIBPCREDIR)/libpcre.a: $(LIBPCREDIR)/Makefile FORCE
+pcre_build: $(LIBPCREDIR)/Makefile
 	@echo Compiling libpcre; cd $(LIBPCREDIR) && $(MAKE)
 
-$(LIBDNETDIR)/src/.libs/libdnet.a: $(LIBDNETDIR)/Makefile FORCE
+dnet_build: $(LIBDNETDIR)/Makefile
 	@echo Compiling libdnet; cd $(LIBDNETDIR) && $(MAKE)
 
-$(LIBPCAPDIR)/libpcap.a: $(LIBPCAPDIR)/Makefile FORCE
+pcap_build: $(LIBPCAPDIR)/Makefile
 	@echo Compiling libpcap; cd $(LIBPCAPDIR) && $(MAKE)
 
-$(NBASEDIR)/libnbase.a: $(NBASEDIR)/Makefile FORCE
+nbase_build: $(NBASEDIR)/Makefile
 	@echo Compiling libnbase;
 	cd $(NBASEDIR) && $(MAKE)
 
-$(NSOCKDIR)/src/libnsock.a: $(NSOCKDIR)/src/Makefile FORCE
+nsock_build: $(NSOCKDIR)/src/Makefile
 	@echo Compiling libnsock;
 	cd $(NSOCKDIR)/src && $(MAKE)
 
-$(LIBLUADIR)/liblua.a: $(LIBLUADIR)/Makefile FORCE
+lua_build: $(LIBLUADIR)/Makefile
 	@echo Compiling liblua; cd $(LIBLUADIR) && $(MAKE) liblua.a @LUAFLAGS@
 
 #$(LIBPCAPDIR)/Makefile:
diff --git a/configure b/configure
index 658aba038..9cd14c136 100755
--- a/configure
+++ b/configure
@@ -684,6 +684,7 @@ ZENMAP_CLEAN
 ZENMAP_DIST_CLEAN
 OPENSSL_LIBS
 PCAP_DEPENDS
+PCAP_BUILD
 PCAP_CLEAN
 PCAP_DIST_CLEAN
 LIBPCAP_LIBS
@@ -691,24 +692,29 @@ subdirs
 LIBPCRE_LIBS
 LIBPCREDIR
 PCRE_DEPENDS
+PCRE_BUILD
 PCRE_CLEAN
 PCRE_DIST_CLEAN
 LIBDNET_LIBS
 LIBDNETDIR
 DNET_DEPENDS
+DNET_BUILD
 DNET_CLEAN
 DNET_DIST_CLEAN
 LIBLUA_LIBS
 LIBLUADIR
 LUA_DEPENDS
+LUA_BUILD
 LUA_CLEAN
 LUA_DIST_CLEAN
 INSTALLNSE
 NSELIB_CLEAN
 NSELIB_DIST_CLEAN
 NBASEDIR
+NBASE_BUILD
 LIBNBASE_LIBS
 NSOCKDIR
+NSOCK_BUILD
 LIBNSOCK_LIBS
 PYTHON
 PYTHON_VERSION
@@ -6279,6 +6285,7 @@ fi
 LIBPCAP_LIBS="-lpcap"
 if test $have_libpcap = yes; then
   PCAP_DEPENDS=""
+  PCAP_BUILD=""
   PCAP_CLEAN=""
   PCAP_DIST_CLEAN=""
   cat >>confdefs.h <<\_ACEOF
@@ -6294,6 +6301,7 @@ else
     CXXFLAGS="$CXXFLAGS -I$libpcapdir"
   fi
   PCAP_DEPENDS='$(LIBPCAPDIR)/libpcap.a'
+  PCAP_BUILD="pcap_build"
   PCAP_CLEAN="pcap_clean"
   PCAP_DIST_CLEAN="pcap_dist_clean"
 fi
@@ -6303,6 +6311,7 @@ fi
 
 
 
+
 if test $have_libpcap != yes ; then
         subdirs="$subdirs libpcap"
 
@@ -6744,11 +6753,13 @@ if test $have_pcre != yes ; then
   CXXFLAGS="-I$LIBPCREDIR $CXXFLAGS"
   LIBPCRE_LIBS="$LIBPCREDIR/libpcre.a"
   PCRE_DEPENDS="$LIBPCREDIR/libpcre.a"
+  PCRE_BUILD="pcre_build"
   PCRE_CLEAN="pcre_clean"
   PCRE_DIST_CLEAN="pcre_dist_clean"
 else
   LIBPCRE_LIBS="-lpcre"
   PCRE_DEPENDS=""
+  PCRE_BUILD=""
   PCRE_CLEAN=""
   PCRE_DIST_CLEAN=""
 fi
@@ -6759,6 +6770,7 @@ fi
 
 
 
+
 have_dnet=no
 requested_included_dnet=no
 LIBDNETDIR=libdnet-stripped
@@ -6789,11 +6801,13 @@ if test $have_dnet != yes ; then
   CXXFLAGS="-I$LIBDNETDIR/include $CXXFLAGS"
   LIBDNET_LIBS="$LIBDNETDIR/src/.libs/libdnet.a"
   DNET_DEPENDS="$LIBDNETDIR/src/.libs/libdnet.a"
+  DNET_BUILD="dnet_build"
   DNET_CLEAN="dnet_clean"
   DNET_DIST_CLEAN="dnet_dist_clean"
 else
   LIBDNET_LIBS="-ldnet"
   DNET_DEPENDS=""
+  DNET_BUILD=""
   DNET_CLEAN=""
   DNET_DIST_CLEAN=""
 fi
@@ -6804,6 +6818,7 @@ fi
 
 
 
+
 LIBLUADIR=liblua
 
 have_lua=no
@@ -6821,6 +6836,7 @@ if test "${with_liblua+set}" = set; then
     CXXFLAGS="-I$LIBLUADIR $CXXFLAGS"
     LIBLUA_LIBS="$LIBLUADIR/liblua.a"
     LUA_DEPENDS="$LIBLUADIR/liblua.a"
+    LUA_BUILD="lua_build"
     LUA_CLEAN="lua_clean"
     LUA_DIST_CLEAN="lua_dist_clean"
 	have_lua="yes"
@@ -6844,6 +6860,7 @@ if test $no_lua == yes; then
   CXXFLAGS="-DNOLUA $CXXFLAGS"
   LIBLUA_LIBS=""
   LUA_DEPENDS=""
+  LUA_BUILD=""
   LUA_CLEAN=""
   LUA_DIST_CLEAN=""
   INSTALLNSE=""
@@ -7411,6 +7428,7 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
     LIBLUA_LIBS="-llua"
     LUA_DEPENDS=""
+    LUA_BUILD=""
     LUA_CLEAN=""
     LUA_DIST_CLEAN=""
   fi
@@ -7422,6 +7440,7 @@ echo "${ECHO_T}no" >&6; }
     CXXFLAGS="-I$LIBLUADIR $CXXFLAGS"
     LIBLUA_LIBS="$LIBLUADIR/liblua.a"
     LUA_DEPENDS="$LIBLUADIR/liblua.a"
+    LUA_BUILD="lua_build"
     LUA_CLEAN="lua_clean"
     LUA_DIST_CLEAN="lua_dist_clean"
   else
@@ -7449,6 +7468,7 @@ fi
 
 
 
+
 { echo "$as_me:$LINENO: checking if sockaddr{} has sa_len member" >&5
 echo $ECHO_N "checking if sockaddr{} has sa_len member... $ECHO_C" >&6; }
 if test "${ac_cv_sockaddr_has_sa_len+set}" = set; then
@@ -8225,10 +8245,12 @@ if test "${with_libnbase+set}" = set; then
     ;;
   *)
     NBASEDIR="$with_libnbase"
+    NBASE_BUILD=""
     ;;
   esac
 else
-  NBASEDIR="nbase"
+  NBASE_BUILD="nbase_build"
+NBASEDIR="nbase"
 
 fi
 
@@ -8240,10 +8262,12 @@ LIBNBASE_LIBS="-lnbase"
 
 
 
+
 subdirs="$subdirs nbase"
 
 
 NSOCKDIR="nsock"
+NSOCK_BUILD="nsock_build"
 
 # Check whether --with-libnsock was given.
 if test "${with_libnsock+set}" = set; then
@@ -8252,6 +8276,7 @@ if test "${with_libnsock+set}" = set; then
     ;;
   *)
     NSOCKDIR="$with_nsock"
+    NSOCK_BUILD=""
     ;;
   esac
 
@@ -8265,6 +8290,7 @@ LIBNSOCK_LIBS="-lnsock"
 
 
 
+
 subdirs="$subdirs nsock/src"
 
 
@@ -9092,6 +9118,7 @@ ZENMAP_CLEAN!$ZENMAP_CLEAN$ac_delim
 ZENMAP_DIST_CLEAN!$ZENMAP_DIST_CLEAN$ac_delim
 OPENSSL_LIBS!$OPENSSL_LIBS$ac_delim
 PCAP_DEPENDS!$PCAP_DEPENDS$ac_delim
+PCAP_BUILD!$PCAP_BUILD$ac_delim
 PCAP_CLEAN!$PCAP_CLEAN$ac_delim
 PCAP_DIST_CLEAN!$PCAP_DIST_CLEAN$ac_delim
 LIBPCAP_LIBS!$LIBPCAP_LIBS$ac_delim
@@ -9099,25 +9126,24 @@ subdirs!$subdirs$ac_delim
 LIBPCRE_LIBS!$LIBPCRE_LIBS$ac_delim
 LIBPCREDIR!$LIBPCREDIR$ac_delim
 PCRE_DEPENDS!$PCRE_DEPENDS$ac_delim
+PCRE_BUILD!$PCRE_BUILD$ac_delim
 PCRE_CLEAN!$PCRE_CLEAN$ac_delim
 PCRE_DIST_CLEAN!$PCRE_DIST_CLEAN$ac_delim
 LIBDNET_LIBS!$LIBDNET_LIBS$ac_delim
 LIBDNETDIR!$LIBDNETDIR$ac_delim
 DNET_DEPENDS!$DNET_DEPENDS$ac_delim
+DNET_BUILD!$DNET_BUILD$ac_delim
 DNET_CLEAN!$DNET_CLEAN$ac_delim
 DNET_DIST_CLEAN!$DNET_DIST_CLEAN$ac_delim
 LIBLUA_LIBS!$LIBLUA_LIBS$ac_delim
 LIBLUADIR!$LIBLUADIR$ac_delim
 LUA_DEPENDS!$LUA_DEPENDS$ac_delim
+LUA_BUILD!$LUA_BUILD$ac_delim
 LUA_CLEAN!$LUA_CLEAN$ac_delim
 LUA_DIST_CLEAN!$LUA_DIST_CLEAN$ac_delim
 INSTALLNSE!$INSTALLNSE$ac_delim
 NSELIB_CLEAN!$NSELIB_CLEAN$ac_delim
 NSELIB_DIST_CLEAN!$NSELIB_DIST_CLEAN$ac_delim
-NBASEDIR!$NBASEDIR$ac_delim
-LIBNBASE_LIBS!$LIBNBASE_LIBS$ac_delim
-NSOCKDIR!$NSOCKDIR$ac_delim
-LIBNSOCK_LIBS!$LIBNSOCK_LIBS$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -9159,6 +9185,12 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+NBASEDIR!$NBASEDIR$ac_delim
+NBASE_BUILD!$NBASE_BUILD$ac_delim
+LIBNBASE_LIBS!$LIBNBASE_LIBS$ac_delim
+NSOCKDIR!$NSOCKDIR$ac_delim
+NSOCK_BUILD!$NSOCK_BUILD$ac_delim
+LIBNSOCK_LIBS!$LIBNSOCK_LIBS$ac_delim
 PYTHON!$PYTHON$ac_delim
 PYTHON_VERSION!$PYTHON_VERSION$ac_delim
 PYTHON_PREFIX!$PYTHON_PREFIX$ac_delim
@@ -9172,7 +9204,7 @@ LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 11; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 17; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
diff --git a/configure.ac b/configure.ac
index 90751dfaa..68b0fb804 100644
--- a/configure.ac
+++ b/configure.ac
@@ -321,6 +321,7 @@ fi
 LIBPCAP_LIBS="-lpcap"
 if test $have_libpcap = yes; then
   PCAP_DEPENDS=""
+  PCAP_BUILD=""
   PCAP_CLEAN=""
   PCAP_DIST_CLEAN=""
   AC_DEFINE(HAVE_LIBPCAP)
@@ -333,11 +334,13 @@ else
     CXXFLAGS="$CXXFLAGS -I$libpcapdir"
   fi
   PCAP_DEPENDS='$(LIBPCAPDIR)/libpcap.a'
+  PCAP_BUILD="pcap_build"
   PCAP_CLEAN="pcap_clean"
   PCAP_DIST_CLEAN="pcap_dist_clean"
 fi
 
 AC_SUBST(PCAP_DEPENDS)
+AC_SUBST(PCAP_BUILD)
 AC_SUBST(PCAP_CLEAN)
 AC_SUBST(PCAP_DIST_CLEAN)
 AC_SUBST(LIBPCAP_LIBS)
@@ -384,11 +387,13 @@ if test $have_pcre != yes ; then
   CXXFLAGS="-I$LIBPCREDIR $CXXFLAGS"
   LIBPCRE_LIBS="$LIBPCREDIR/libpcre.a"
   PCRE_DEPENDS="$LIBPCREDIR/libpcre.a"
+  PCRE_BUILD="pcre_build"
   PCRE_CLEAN="pcre_clean"
   PCRE_DIST_CLEAN="pcre_dist_clean"
 else
   LIBPCRE_LIBS="-lpcre"
   PCRE_DEPENDS=""
+  PCRE_BUILD=""
   PCRE_CLEAN=""
   PCRE_DIST_CLEAN=""
 fi
@@ -396,6 +401,7 @@ fi
 AC_SUBST(LIBPCRE_LIBS)
 AC_SUBST(LIBPCREDIR)
 AC_SUBST(PCRE_DEPENDS)
+AC_SUBST(PCRE_BUILD)
 AC_SUBST(PCRE_CLEAN)
 AC_SUBST(PCRE_DIST_CLEAN)
 
@@ -425,11 +431,13 @@ if test $have_dnet != yes ; then
   CXXFLAGS="-I$LIBDNETDIR/include $CXXFLAGS"
   LIBDNET_LIBS="$LIBDNETDIR/src/.libs/libdnet.a"
   DNET_DEPENDS="$LIBDNETDIR/src/.libs/libdnet.a"
+  DNET_BUILD="dnet_build"
   DNET_CLEAN="dnet_clean"
   DNET_DIST_CLEAN="dnet_dist_clean"
 else
   LIBDNET_LIBS="-ldnet"
   DNET_DEPENDS=""
+  DNET_BUILD=""
   DNET_CLEAN=""
   DNET_DIST_CLEAN=""
 fi
@@ -437,6 +445,7 @@ fi
 AC_SUBST(LIBDNET_LIBS)
 AC_SUBST(LIBDNETDIR)
 AC_SUBST(DNET_DEPENDS)
+AC_SUBST(DNET_BUILD)
 AC_SUBST(DNET_CLEAN)
 AC_SUBST(DNET_DIST_CLEAN)
 
@@ -458,6 +467,7 @@ AC_HELP_STRING([--without-liblua], [Compile without lua (this will exclude all o
     CXXFLAGS="-I$LIBLUADIR $CXXFLAGS"
     LIBLUA_LIBS="$LIBLUADIR/liblua.a"
     LUA_DEPENDS="$LIBLUADIR/liblua.a"
+    LUA_BUILD="lua_build"
     LUA_CLEAN="lua_clean"
     LUA_DIST_CLEAN="lua_dist_clean"
 	have_lua="yes"
@@ -479,6 +489,7 @@ if test $no_lua == yes; then
   CXXFLAGS="-DNOLUA $CXXFLAGS"
   LIBLUA_LIBS=""
   LUA_DEPENDS=""
+  LUA_BUILD=""
   LUA_CLEAN=""
   LUA_DIST_CLEAN=""
   INSTALLNSE=""
@@ -506,6 +517,7 @@ else
   
     LIBLUA_LIBS="-llua"
     LUA_DEPENDS=""
+    LUA_BUILD=""
     LUA_CLEAN=""
     LUA_DIST_CLEAN=""
   fi
@@ -516,6 +528,7 @@ else
     CXXFLAGS="-I$LIBLUADIR $CXXFLAGS"
     LIBLUA_LIBS="$LIBLUADIR/liblua.a"
     LUA_DEPENDS="$LIBLUADIR/liblua.a"
+    LUA_BUILD="lua_build"
     LUA_CLEAN="lua_clean"
     LUA_DIST_CLEAN="lua_dist_clean"
   else
@@ -534,6 +547,7 @@ fi
 AC_SUBST(LIBLUA_LIBS)
 AC_SUBST(LIBLUADIR)
 AC_SUBST(LUA_DEPENDS)
+AC_SUBST(LUA_BUILD)
 AC_SUBST(LUA_CLEAN)
 AC_SUBST(LUA_DIST_CLEAN)
 AC_SUBST(INSTALLNSE)
@@ -635,8 +649,10 @@ AC_HELP_STRING([--with-libnbase=DIR], [Look for nbase include/libs in DIR]),
     ;;
   *)
     NBASEDIR="$with_libnbase"
+    NBASE_BUILD=""
     ;;
   esac],
+NBASE_BUILD="nbase_build"
 NBASEDIR="nbase"
 )
 
@@ -645,11 +661,13 @@ CXXFLAGS="$CXXFLAGS -I$NBASEDIR"
 LIBNBASE_LIBS="-lnbase"
 
 AC_SUBST(NBASEDIR)
+AC_SUBST(NBASE_BUILD)
 AC_SUBST(LIBNBASE_LIBS)
 
 AC_CONFIG_SUBDIRS(nbase)
 
 NSOCKDIR="nsock"
+NSOCK_BUILD="nsock_build"
 AC_ARG_WITH(libnsock,
 AC_HELP_STRING([--with-libnsock=DIR], [Compile and link to libnsock in DIR]),
 [  case "$with_nsock" in
@@ -657,6 +675,7 @@ AC_HELP_STRING([--with-libnsock=DIR], [Compile and link to libnsock in DIR]),
     ;;
   *)
     NSOCKDIR="$with_nsock"
+    NSOCK_BUILD=""
     ;;
   esac]
 )
@@ -666,6 +685,7 @@ CXXFLAGS="$CXXFLAGS -I$NSOCKDIR/include"
 LIBNSOCK_LIBS="-lnsock"
 
 AC_SUBST(NSOCKDIR)
+AC_SUBST(NSOCK_BUILD)
 AC_SUBST(LIBNSOCK_LIBS)
 
 AC_CONFIG_SUBDIRS(nsock/src)