diff -Nur LIB.ori/configure.in LIB.mod/configure.in
--- LIB.ori/configure.in	2001-11-06 19:35:14.000000000 +0100
+++ LIB.mod/configure.in	2007-01-11 16:43:10.574495250 +0100
@@ -18,6 +18,7 @@
 AC_DEFINE_UNQUOTED(ALL_LINGUAS,"$ALL_LINGUAS")
 AC_SUBST(PACKAGE)
 AC_SUBST(VERSION)
+AC_GNU_SOURCE
 AM_GNU_GETTEXT
 
 dnl Checks for header files.
@@ -85,8 +86,6 @@
 djgpp="no";
 case "$target" in
 *-linux-gnu) AC_DEFINE(LINUX);;
-*-cygwin)    AC_DEFINE(CYGWIN) 
-             AM_MAINTAINER_MODE;;
 *-msdosdjgpp) AC_DEFINE(_DJGPP)
              djgpp="yes";;
 esac
diff -Nur LIB.ori/utils/join.c LIB.mod/utils/join.c
--- LIB.ori/utils/join.c	2001-09-30 14:52:29.000000000 +0200
+++ LIB.mod/utils/join.c	2007-01-12 02:42:45.304809750 +0100
@@ -13,7 +13,7 @@
 
 void dodaj(char *nazwa_pliku, char *sygnaturka)
 {
-    long int ile, ile_compr, blad;
+    long int ile, ile_compr = MAXTAB, blad;
     if ((plik = fopen(nazwa_pliku, "rb")) == NULL) {
 	fprintf(stderr, _("\nNie mogę otworzyć %s.\n"), nazwa_pliku);
 	exit(1);