diff -Naur apachetop-0.12.6.orig/configure.ac apachetop-0.12.6/configure.ac
--- apachetop-0.12.6.orig/configure.ac	2009-02-26 01:11:52.000000000 -0500
+++ apachetop-0.12.6/configure.ac	2009-02-26 01:12:35.000000000 -0500
@@ -34,7 +34,8 @@
 # Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS([arpa/inet.h netdb.h netinet/in.h \
-		string.h strings.h sys/socket.h time.h sys/time.h])
+		string.h strings.h sys/socket.h time.h sys/time.h \
+		linux/limit.h sys/param.h])
 
 # Checks for typedefs, structures, and compiler characteristics.
 #AC_HEADER_STDBOOL # not in 2.53?
diff -Naur apachetop-0.12.6.orig/src/apachetop.h apachetop-0.12.6/src/apachetop.h
--- apachetop-0.12.6.orig/src/apachetop.h	2009-02-26 01:11:52.000000000 -0500
+++ apachetop-0.12.6/src/apachetop.h	2009-02-26 01:13:42.000000000 -0500
@@ -89,8 +89,12 @@
 #define getMIN(a,b) (a < b ? a : b)
 #define getMAX(a,b) (a > b ? a : b)
 
-#ifndef MAXPATHLEN
-# define MAXPATHLEN 128
+#ifndef HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+
+#ifndef HAVE_LINUX_LIMITS_H
+# include <linux/limits.h>
 #endif
 
 /* upon startup, each input file is put into an element of this array,