--- parser3/configure	2003/03/26 13:46:49	1.66.2.5.2.1
+++ parser3/configure	2003/04/02 10:50:53	1.66.2.5.2.3
@@ -859,6 +859,7 @@ Optional Features:
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --disable-dependency-tracking Speeds up one-time builds
   --enable-dependency-tracking  Do not reject slow dependency extractors
+  --enable-assertions	  to enable assertions
   --disable-safe-mode	  to enable reading and executing
                           files belonging to group+user other then effective
   --disable-execs	  to disable any execs
@@ -3557,6 +3558,25 @@ esac
 
 
 
+# Check whether --enable-assertions or --disable-assertions was given.
+if test "${enable_assertions+set}" = set; then
+  enableval="$enable_assertions"
+
+	ASSERTIONS_MODE=$enableval
+
+
+fi;
+if test "$ASSERTIONS_MODE" = "yes"; then
+	{ echo "$as_me:$LINENO: WARNING: enabling assertions" >&5
+echo "$as_me: WARNING: enabling assertions" >&2;}
+else
+
+cat >>confdefs.h <<\_ACEOF
+#define NDEBUG
+_ACEOF
+
+fi
+
 # Check whether --enable-safe-mode or --disable-safe-mode was given.
 if test "${enable_safe_mode+set}" = set; then
   enableval="$enable_safe_mode"
@@ -5311,7 +5331,9 @@ fi
 
 
 
-for ac_header in signal.h \
+
+for ac_header in assert.h \
+signal.h \
 unistd.h \
 process.h \
 stddef.h \