diff -ur e2fsprogs-1.36.orig/config/config.rpath e2fsprogs-1.36/config/config.rpath
--- e2fsprogs-1.36.orig/config/config.rpath	2005-02-06 18:02:17.000000000 -0500
+++ e2fsprogs-1.36/config/config.rpath	2005-02-06 18:04:13.000000000 -0500
@@ -478,7 +478,7 @@
 escaped_sys_lib_search_path_spec=`echo "X$sys_lib_search_path_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
 escaped_sys_lib_dlsearch_path_spec=`echo "X$sys_lib_dlsearch_path_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
 
-sed -e 's/^\([a-zA-Z0-9_]*\)=/acl_cv_\1=/' <<EOF
+sed -e 's/^\([[:alnum:]_]*\)=/acl_cv_\1=/' <<EOF
 
 # How to pass a linker flag through the compiler.
 wl="$escaped_wl"
diff -ur e2fsprogs-1.36.orig/configure e2fsprogs-1.36/configure
--- e2fsprogs-1.36.orig/configure	2005-02-06 18:02:17.000000000 -0500
+++ e2fsprogs-1.36/configure	2005-02-06 18:04:07.000000000 -0500
@@ -1256,7 +1256,7 @@
 # value.
 ac_cache_corrupted=false
 for ac_var in `(set) 2>&1 |
-	       sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
+	       sed -n 's/^ac_env_\([[:alnum:]_]*\)_set=.*/\1/p'`; do
   eval ac_old_set=\$ac_cv_env_${ac_var}_set
   eval ac_new_set=\$ac_env_${ac_var}_set
   eval ac_old_val="\$ac_cv_env_${ac_var}_value"
@@ -7487,7 +7487,7 @@
   esac
   case $ac_prog in
     # Accept absolute paths.
-    [\\/]* | [A-Za-z]:[\\/]*)
+    [\\/]* | [[:alpha:]]:[\\/]*)
       re_direlt='/[^/][^/]*/\.\./'
       # Canonicalize the path of ld
       ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
@@ -15068,7 +15068,7 @@
       # is no need to browse any of the substitutions).
       # These are the two extra sed commands mentioned above.
       (echo ':t
-  /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
+  /@[[:alpha:]_][[:alnum:]_]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
       if test -z "$ac_sed_cmds"; then
 	ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
       else
@@ -15258,7 +15258,7 @@
 _ACEOF
 cat >>$CONFIG_STATUS <<\_ACEOF
 :t
-/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+/@[[:alpha:]_][[:alnum:]_]*@/!b
 s,@configure_input@,$configure_input,;t t
 s,@srcdir@,$ac_srcdir,;t t
 s,@abs_srcdir@,$ac_abs_srcdir,;t t