--- a/Makefile.in
+++ b/Makefile.in
@@ -41,7 +41,6 @@
 # http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html
 # Level 1 only makes changes that don't affect "conforming" programs,
 # while level 2 enforces additional restrictions.
-DEFS += -D_FORTIFY_SOURCE=2
 # For mtrace debugging -- see MTRACE define in main.cc for instructions
 # Should only be enabled during debugging and not in any real release.
 # DEFS += -DMTRACE=1
--- a/nsock/src/Makefile.in
+++ b/nsock/src/Makefile.in
@@ -13,7 +13,6 @@
 CCOPT = 
 DEFS = @DEFS@ -DNSOCK_VERSION=\"$(NSOCK_VERSION)\"
 # With GCC, add extra security checks to source code.
-DEFS += -D_FORTIFY_SOURCE=2
 INCLS = -I../include
 CFLAGS = @CFLAGS@ $(CCOPT)
 # CFLAGS = -g -Wall $(DEFS) $(INCLS)
--- a/nping/Makefile.in
+++ b/nping/Makefile.in
@@ -38,7 +38,6 @@
 # http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html
 # Level 1 only makes changes that don't affect "conforming" programs,
 # while level 2 enforces additional restrictions.
-DEFS += -D_FORTIFY_SOURCE=2
 # For mtrace debugging -- see MTRACE define in main.cc for instructions
 # Should only be enabled during debugging and not in any real release.
 # DEFS += -DMTRACE=1
--- a/libnetutil/Makefile.in
+++ b/libnetutil/Makefile.in
@@ -5,7 +5,6 @@
 CXXFLAGS = @CXXFLAGS@
 CPPFLAGS = @CPPFLAGS@ $(DEFS)
 DEFS = @DEFS@
-DEFS += -D_FORTIFY_SOURCE=2
 AR = ar
 RANLIB = @RANLIB@
 
--- a/ncat/Makefile.in
+++ b/ncat/Makefile.in
@@ -53,7 +53,6 @@
 LIBS = @LIBS@
 DEFS = @DEFS@ -DNCAT_DATADIR="\"$(pkgdatadir)\""
 # With GCC, add extra security checks to source code.
-DEFS += -D_FORTIFY_SOURCE=2
 INCLS = -I. -I.. -I../nsock/include/ -I$(NBASEDIR)
 RM = rm -f
 STRIP = @STRIP@
--- a/nbase/Makefile.in
+++ b/nbase/Makefile.in
@@ -12,7 +12,6 @@
 CCOPT = 
 DEFS = @DEFS@
 # With GCC, add extra security checks to source code.
-DEFS += -D_FORTIFY_SOURCE=2
 CPPFLAGS = @CPPFLAGS@
 CFLAGS = @CFLAGS@ $(CCOPT) $(GLIB_CFLAGS) $(DEFS) $(INCLS)
 STATIC = 
--- a/nmap-update/Makefile.in
+++ b/nmap-update/Makefile.in
@@ -11,7 +11,7 @@
 CPPFLAGS = @CPPFLAGS@ $(DEFS) -I$(NBASEDIR)
 LDFLAGS = @LDFLAGS@
 LIBS = @LIBS@ $(NBASELIB)
-DEFS = @DEFS@ -D_FORTIFY_SOURCE=2
+DEFS = @DEFS@
 APR_LIBS = @APR_LIBS@
 SVN_LIBS = @SVN_LIBS@