Clean up legacy C code

Finally get rid of the old C implementation of backup-files, together
with all the related checks in configure and variables in Makefile.

Signed-off-by: Jean Delvare <jdelvare@suse.de>

6 files changed, 11 insertions, 3080 deletions

diff --git a/Makefile.in b/Makefile.in
index 5f20c04..050b2b0 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -46,13 +46,6 @@ USE_NLS :=	@USE_NLS@
 STAT_HARDLINK := @STAT_HARDLINK@
 PATCH_WRAPPER := @PATCH_WRAPPER@
 
-CC :=		@CC@
-CPPFLAGS +=	@CPPFLAGS@ @DEFS@
-CFLAGS +=	@CFLAGS@
-LDFLAGS +=	@LDFLAGS@
-LIBS :=		@LIBS@
-EXEEXT :=	@EXEEXT@
-
 COMPAT_SYMLINKS	:= @COMPAT_SYMLINKS@
 COMPAT_PROGRAMS	:= @COMPAT_PROGRAMS@
 
diff --git a/TODO b/TODO
index 4db69b2..eaaf11f 100644
--- a/TODO
+++ b/TODO
@@ -2,7 +2,7 @@ General:
 
 	- Abstract backup operations to/from the .pc/ directory, so that
 	  optionally something like rcs can be used instead of
-	  lib/backup-files?
+	  scripts/backup-files?
 
 	- Add something similar to cvs diff, which scans all files for
 	  changes that have not been folded back into their patches,
diff --git a/configure b/configure
index 3e19fbd..60946d8 100755
--- a/configure
+++ b/configure
@@ -601,43 +601,8 @@ PACKAGE_VERSION='0.51'
 PACKAGE_STRING='quilt 0.51'
 PACKAGE_BUGREPORT='quilt-dev@nongnu.org'
 
-# Factoring default headers for most tests.
-ac_includes_default="\
-#include <stdio.h>
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_STAT_H
-# include <sys/stat.h>
-#endif
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <stddef.h>
-#else
-# ifdef HAVE_STDLIB_H
-#  include <stdlib.h>
-# endif
-#endif
-#ifdef HAVE_STRING_H
-# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
-#  include <memory.h>
-# endif
-# include <string.h>
-#endif
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
-#ifdef HAVE_INTTYPES_H
-# include <inttypes.h>
-#endif
-#ifdef HAVE_STDINT_H
-# include <stdint.h>
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif"
-
 ac_subst_vars='LTLIBOBJS
+LIBOBJS
 COMPAT_PROGRAMS
 COMPAT_SYMLINKS
 RPMBUILD
@@ -664,6 +629,7 @@ STAT_HARDLINK
 STAT
 TR
 TAIL
+GREP
 PERL
 DATE
 CP
@@ -671,17 +637,6 @@ BASH
 INSTALL_DATA
 INSTALL_SCRIPT
 INSTALL_PROGRAM
-LIBOBJS
-EGREP
-GREP
-CPP
-OBJEXT
-EXEEXT
-ac_ct_CC
-CPPFLAGS
-LDFLAGS
-CFLAGS
-CC
 PACKAGE_RELEASE
 target_alias
 host_alias
@@ -749,13 +704,7 @@ with_rpmbuild
 '
       ac_precious_vars='build_alias
 host_alias
-target_alias
-CC
-CFLAGS
-LDFLAGS
-LIBS
-CPPFLAGS
-CPP'
+target_alias'
 
 
 # Initialize some variables set by options.
@@ -1411,19 +1360,6 @@ Optional Packages:
   --with-patch-wrapper    include GNU patch wrapper
   --with-rpmbuild         name of the rpmbuild executable to use
 
-Some influential environment variables:
-  CC          C compiler command
-  CFLAGS      C compiler flags
-  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
-              nonstandard directory <lib dir>
-  LIBS        libraries to pass to the linker, e.g. -l<library>
-  CPPFLAGS    C/C++/Objective C preprocessor flags, e.g. -I<include dir> if
-              you have headers in a nonstandard directory <include dir>
-  CPP         C preprocessor
-
-Use these variables to override the choices made by `configure' or to help
-it to find libraries and programs with nonstandard names/locations.
-
 Report bugs to <quilt-dev@nongnu.org>.
 _ACEOF
 ac_status=$?
@@ -1907,2358 +1843,6 @@ PACKAGE_RELEASE=1
 
 
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
-set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$CC"; then
-  ac_cv_prog_CC="$CC" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
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-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
-IFS=$as_save_IFS
-
-fi
-fi
-CC=$ac_cv_prog_CC
-if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
-$as_echo "$CC" >&6; }
-else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_CC"; then
-  ac_ct_CC=$CC
-  # Extract the first word of "gcc", so it can be a program name with args.
-set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
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-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
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-yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
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-
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-do
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-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_CC="${ac_tool_prefix}cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
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-$as_echo_n "checking for $ac_word... " >&6; }
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-  ac_prog_rejected=no
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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-do
-  IFS=$as_save_IFS
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-  for ac_exec_ext in '' $ac_executable_extensions; do
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-       ac_prog_rejected=yes
-       continue
-     fi
-    ac_cv_prog_CC="cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
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-
-if test $ac_prog_rejected = yes; then
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-  set dummy $ac_cv_prog_CC
-  shift
-  if test $# != 0; then
-    # We chose a different compiler from the bogus one.
-    # However, it has the same basename, so the bogon will be chosen
-    # first if we set CC to just the basename; use the full file name.
-    shift
-    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
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-{ $as_echo "$as_me:$LINENO: result: yes" >&5
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-
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-
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-{ $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
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-
-
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-
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-
-ac_ext=c
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-/* end confdefs.h.  */
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-# include <assert.h>
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-  $as_echo "$as_me: failed program was:" >&5
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-  $as_echo "$as_me: failed program was:" >&5
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-
-  # Passes both tests.
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-rm -f conftest.err conftest.$ac_ext
-
-done
-# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
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-
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-  ac_cv_prog_CPP=$CPP
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-{ $as_echo "$as_me:$LINENO: result: $CPP" >&5
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-ac_preproc_ok=false
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-  # Use a header file that comes with gcc, so configuring glibc
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-/* confdefs.h.  */
-_ACEOF
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-/* end confdefs.h.  */
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-  $as_echo "$as_me: failed program was:" >&5
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-rm -f conftest.err conftest.$ac_ext
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-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
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-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
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-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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-
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-{ $as_echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
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-IFS=$as_save_IFS
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-  ac_cv_path_GREP=$GREP
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-
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5
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- GREP="$ac_cv_path_GREP"
-
-
-{ $as_echo "$as_me:$LINENO: checking for egrep" >&5
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-if test "${ac_cv_path_EGREP+set}" = set; then
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-   then ac_cv_path_EGREP="$GREP -E"
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-      # Best one so far, save it but keep looking for a better one
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-IFS=$as_save_IFS
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-   fi
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-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5
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- EGREP="$ac_cv_path_EGREP"
-
-
-{ $as_echo "$as_me:$LINENO: checking for ANSI C header files" >&5
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-if test "${ac_cv_header_stdc+set}" = set; then
-  $as_echo_n "(cached) " >&6
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-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
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-/* end confdefs.h.  */
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-#include <float.h>
-
-int
-main ()
-{
-
-  ;
-  return 0;
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-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
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-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
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-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_cv_header_stdc=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_header_stdc=no
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-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-if test $ac_cv_header_stdc = yes; then
-  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
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-/* end confdefs.h.  */
-#include <string.h>
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-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
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-  :
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-rm -f conftest*
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-fi
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-if test $ac_cv_header_stdc = yes; then
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-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
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-/* end confdefs.h.  */
-#include <stdlib.h>
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-_ACEOF
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-  :
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-fi
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-if test $ac_cv_header_stdc = yes; then
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-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
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-/* end confdefs.h.  */
-#include <ctype.h>
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-#else
-# define ISLOWER(c) \
-		   (('a' <= (c) && (c) <= 'i') \
-		     || ('j' <= (c) && (c) <= 'r') \
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-# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
-#endif
-
-#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
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-{
-  int i;
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-  return 0;
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-( exit $ac_status )
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-rm -rf conftest.dSYM
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-
-fi
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-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
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-if test $ac_cv_header_stdc = yes; then
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-cat >>confdefs.h <<\_ACEOF
-#define STDC_HEADERS 1
-_ACEOF
-
-fi
-
-
-
-for ac_func in fchmod chmod
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-as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
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-if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
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-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
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-#define $ac_func innocuous_$ac_func
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-/* System header to define __stub macros and hopefully few prototypes,
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-    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
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-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
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-#if defined __stub_$ac_func || defined __stub___$ac_func
-choke me
-#endif
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-int
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-{
-return $ac_func ();
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-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
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-  $as_echo "$as_me: failed program was:" >&5
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-	eval "$as_ac_var=no"
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-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
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-ac_res=`eval 'as_val=${'$as_ac_var'}
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-as_val=`eval 'as_val=${'$as_ac_var'}
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-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
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-
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-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
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-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
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-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
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-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
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-choke me
-#endif
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-int
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-return $ac_func ();
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-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
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-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
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-  $as_echo "$as_me: failed program was:" >&5
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-ac_res=`eval 'as_val=${'$as_ac_var'}
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-as_val=`eval 'as_val=${'$as_ac_var'}
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-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
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-/* end confdefs.h.  */
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-/* System header to define __stub macros and hopefully few prototypes,
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-#ifdef __STDC__
-# include <limits.h>
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-
-#undef $ac_func
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-/* Override any GCC internal prototype to avoid an error.
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-char $ac_func ();
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-int
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-{
-return $ac_func ();
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-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
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-  $as_echo "$as_me: failed program was:" >&5
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-ac_res=`eval 'as_val=${'$as_ac_var'}
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-as_val=`eval 'as_val=${'$as_ac_var'}
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-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
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-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
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-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
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-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
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-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
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-#if defined __stub_$ac_func || defined __stub___$ac_func
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-#endif
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-int
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-{
-return $ac_func ();
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-  return 0;
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-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
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-ac_res=`eval 'as_val=${'$as_ac_var'}
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-as_val=`eval 'as_val=${'$as_ac_var'}
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-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
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-/* end confdefs.h.  */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
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-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
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-    <limits.h> exists even on freestanding compilers.  */
-
-#ifdef __STDC__
-# include <limits.h>
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-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any GCC internal prototype to avoid an error.
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-#ifdef __cplusplus
-extern "C"
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-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
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-#if defined __stub_$ac_func || defined __stub___$ac_func
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-int
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-{
-return $ac_func ();
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
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-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
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-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
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-  $as_echo "$as_me: failed program was:" >&5
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-	eval "$as_ac_var=no"
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-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
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-ac_res=`eval 'as_val=${'$as_ac_var'}
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-as_val=`eval 'as_val=${'$as_ac_var'}
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-fi
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-{ $as_echo "$as_me:$LINENO: checking for an ANSI C-conforming const" >&5
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-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-int
-main ()
-{
-/* FIXME: Include the comments suggested by Paul. */
-#ifndef __cplusplus
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-  typedef int charset[2];
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-  struct point {int x, y;};
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-  /* AIX XL C 1.02.0.0 rejects this.
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-  const char *g = "string";
-  pcpcc = &g + (g ? g-g : 0);
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-  ++pcpcc;
-  ppc = (char**) pcpcc;
-  pcpcc = (char const *const *) ppc;
-  { /* SCO 3.2v4 cc rejects this.  */
-    char *t;
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-
-    *t++ = 0;
-    if (s) return 0;
-  }
-  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
-    int x[] = {25, 17};
-    const int *foo = &x[0];
-    ++foo;
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-  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
-    typedef const int *iptr;
-    iptr p = 0;
-    ++p;
-  }
-  { /* AIX XL C 1.02.0.0 rejects this saying
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-    if (!foo) return 0;
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-  return !cs[0] && !zero.x;
-#endif
-
-  ;
-  return 0;
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-_ACEOF
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-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
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-  ac_cv_c_const=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
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-	ac_cv_c_const=no
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-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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-{ $as_echo "$as_me:$LINENO: result: $ac_cv_c_const" >&5
-$as_echo "$ac_cv_c_const" >&6; }
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-cat >>confdefs.h <<\_ACEOF
-#define const /**/
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-
-fi
-
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-
-
-
-
-
-
-
-
-
-for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
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-do
-as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
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-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
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-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
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-#include <$ac_header>
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-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
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-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
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-	 test -z "$ac_c_werror_flag" ||
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-       } && test -s conftest.$ac_objext; then
-  eval "$as_ac_Header=yes"
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-  $as_echo "$as_me: failed program was:" >&5
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-	eval "$as_ac_Header=no"
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-as_val=`eval 'as_val=${'$as_ac_Header'}
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-{ $as_echo "$as_me:$LINENO: checking whether lstat dereferences a symlink specified with a trailing slash" >&5
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-  cat >conftest.$ac_ext <<_ACEOF
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-cat confdefs.h >>conftest.$ac_ext
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-/* end confdefs.h.  */
-$ac_includes_default
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-{
-struct stat sbuf;
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-  ;
-  return 0;
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-_ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
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-  { (case "(($ac_try" in
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-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
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-  $as_echo "$as_me: program exited with status $ac_status" >&5
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-
-( exit $ac_status )
-ac_cv_func_lstat_dereferences_slashed_symlink=no
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-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-
-
-else
-  # If the `ln -s' command failed, then we probably don't even
-  # have an lstat function.
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-fi
-rm -f conftest.sym conftest.file
-
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-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_lstat_dereferences_slashed_symlink" >&5
-$as_echo "$ac_cv_func_lstat_dereferences_slashed_symlink" >&6; }
-
-test $ac_cv_func_lstat_dereferences_slashed_symlink = yes &&
-
-cat >>confdefs.h <<_ACEOF
-#define LSTAT_FOLLOWS_SLASHED_SYMLINK 1
-_ACEOF
-
-
-if test $ac_cv_func_lstat_dereferences_slashed_symlink = no; then
-  case " $LIBOBJS " in
-  *" lstat.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS lstat.$ac_objext"
- ;;
-esac
-
-fi
-
-{ $as_echo "$as_me:$LINENO: checking whether stat accepts an empty string" >&5
-$as_echo_n "checking whether stat accepts an empty string... " >&6; }
-if test "${ac_cv_func_stat_empty_string_bug+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then
-  ac_cv_func_stat_empty_string_bug=yes
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-int
-main ()
-{
-struct stat sbuf;
-  return stat ("", &sbuf) == 0;
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  ac_cv_func_stat_empty_string_bug=no
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-$as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
-ac_cv_func_stat_empty_string_bug=yes
-fi
-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-
-
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_func_stat_empty_string_bug" >&5
-$as_echo "$ac_cv_func_stat_empty_string_bug" >&6; }
-if test $ac_cv_func_stat_empty_string_bug = yes; then
-  case " $LIBOBJS " in
-  *" stat.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS stat.$ac_objext"
- ;;
-esac
-
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_STAT_EMPTY_STRING_BUG 1
-_ACEOF
-
-fi
-
-
-#AC_CONFIG_LIBOBJ_DIR(lib)
-#AC_REPLACE_FUNCS()
-
-if test "$ac_compiler_gnu" = "yes"; then
-  CFLAGS="$CFLAGS -Wall"
-fi
-EXEEXT="$ac_cv_exeext"
-
-
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
 # incompatible versions:
@@ -8111,12 +5695,6 @@ $as_echo "" >&6; }
 { $as_echo "$as_me:$LINENO: result: Using '$prefix' for installation prefix." >&5
 $as_echo "Using '$prefix' for installation prefix." >&6; }
 
-# we don't need to see this just for the backup-files command
-# but we may as well spec it for the future
-#AC_MSG_RESULT([Using '$CC' for C compiler.])
-#AC_MSG_RESULT([Building with '$CFLAGS' for C compiler flags.])
-#AC_MSG_RESULT([Building with '$LIBS' for linker flags.])
-
 { $as_echo "$as_me:$LINENO: result: " >&5
 $as_echo "" >&6; }
 { $as_echo "$as_me:$LINENO: result: Report bugs to $PACKAGE_BUGREPORT" >&5
diff --git a/configure.ac b/configure.ac
index 2d1d10a..6496e64 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,25 +8,6 @@ PACKAGE_RELEASE=1
 AC_SUBST(PACKAGE_RELEASE)
 AC_SUBST(PACKAGE_TARNAME)
 
-dnl Setup for backup-files compilation
-AC_HEADER_STDC
-AC_CHECK_FUNCS([fchmod chmod])
-AC_CHECK_FUNCS([mkstemp mktemp], break)
-AC_CHECK_FUNCS([mkdir rmdir])
-AC_CHECK_FUNCS([strchr strrchr])
-AC_CHECK_FUNCS([strerror])
-AC_C_CONST
-AC_FUNC_STAT
-
-#AC_CONFIG_LIBOBJ_DIR(lib)
-#AC_REPLACE_FUNCS()
-
-if test "$ac_compiler_gnu" = "yes"; then
-  CFLAGS="$CFLAGS -Wall"
-fi
-EXEEXT="$ac_cv_exeext"
-AC_SUBST(EXEEXT)
-
 AC_PROG_INSTALL
 
 AC_SYS_INTERPRETER
@@ -411,11 +392,5 @@ AC_MSG_RESULT([$PACKAGE_NAME version $PACKAGE_VERSION configured.])
 AC_MSG_RESULT([])
 AC_MSG_RESULT([Using '$prefix' for installation prefix.])
 
-# we don't need to see this just for the backup-files command
-# but we may as well spec it for the future
-#AC_MSG_RESULT([Using '$CC' for C compiler.])
-#AC_MSG_RESULT([Building with '$CFLAGS' for C compiler flags.])
-#AC_MSG_RESULT([Building with '$LIBS' for linker flags.])
-
 AC_MSG_RESULT([])
 AC_MSG_RESULT([Report bugs to $PACKAGE_BUGREPORT])
diff --git a/lib/backup-files.c b/lib/backup-files.c
deleted file mode 100644
index e2c1ea1..0000000
--- a/lib/backup-files.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*
-  File: backup-files.c
-
-  Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008
-  Andreas Gruenbacher <agruen@suse.de>, SuSE Labs
-
-  This program is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Library General Public
-  License as published by the Free Software Foundation; either
-  version 2 of the License, or (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Library General Public License for more details.
-
-  You should have received a copy of the GNU Library General Public
-  License along with this library; if not, write to the Free Software
-  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
-
-/*
- * Create backup files of a list of files similar to GNU patch. A path
- * name prefix and suffix for the backup file can be specified with the
- * -B and -z options.
- */
-
-#define _GNU_SOURCE 1
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <utime.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <string.h>
-#include <dirent.h>
-
-#if !defined(HAVE_MKSTEMP) && defined(HAVE_MKTEMP)
-# define mkstemp(x) creat(mktemp(x), 0600)
-#endif
-
-#ifndef PATH_MAX
-# define PATH_MAX 4096
-#endif
-
-#ifdef __MINGW32__
-#define mkdir(x,y) mkdir(x)
-/* Symlinks are not supported */
-#define lstat stat
-static int link(const char *oldpath, const char *newpath)
-{
-	errno = ENOSYS;
-	return -1;
-}
-#endif
-
-const char *progname;
-
-enum { what_noop, what_backup, what_restore, what_remove };
-
-const char *opt_prefix="", *opt_suffix="", *opt_file;
-int opt_silent, opt_what=what_noop;
-int opt_nolinks, opt_touch;
-int opt_keep_backup;
-
-#define LINE_LENGTH 1024
-
-
-static void
-usage(void)
-{
-	printf("Usage: %s [-B prefix] [-z suffix] [-f {file|-}] [-sktL] [-b|-r|-x] {file|-} ...\n"
-	       "\n"
-	       "\tCreate hard linked backup copies of a list of files\n"
-	       "\tread from standard input.\n"
-	       "\n"
-	       "\t-b\tCreate backup\n"
-	       "\t-r\tRestore the backup\n"
-	       "\t-x\tRemove backup files and empty parent directories\n"
-	       "\t-k\tWhen doing a restore, keep the backup files\n"
-	       "\t-B\tPath name prefix for backup files\n"
-	       "\t-z\tPath name suffix for backup files\n"
-	       "\t-s\tSilent operation; only print error messages\n"
-	       "\t-f\tRead the filenames to process from file (- = standard input)\n"
-	       "\t-t\tTouch original files after restore (update their mtimes)\n\n"
-	       "\t-L\tEnsure that when finished, the source file has a link count of 1\n\n",
-	       progname);
-}
-
-static void *
-malloc_nofail(size_t size)
-{
-	void *p = malloc(size);
-	if (!p) {
-		perror(progname);
-		exit(1);
-	}
-	return p;
-}
-
-static void
-create_parents(const char *filename)
-{
-	struct stat st;
-	int rv = -1;
-	char *fn = malloc_nofail(strlen(filename) + 1), *f;
-
-	strcpy(fn, filename);
-
-	f = strrchr(fn, '/');
-	if (f == NULL)
-		goto out;
-	*f = '\0';
-	if (stat(fn, &st) == 0)
-		goto out;
-	*f = '/';
-
-	f = strchr(fn, '/');
-	while (f != NULL) {
-		*f = '\0';
-		if (!rv || (rv = stat(fn, &st)) != 0) {
-			mkdir(fn, 0777);
-		}
-		*f = '/';
-		f = strchr(f+1, '/');
-	}
-out:
-	free(fn);
-}
-
-static void
-remove_parents(const char *filename)
-{
-	char *fn = malloc_nofail(strlen(filename) + 1), *f;
-
-	strcpy(fn, filename);
-
-	f = strrchr(fn, '/');
-	if (f == NULL)
-		goto out;
-	do {
-		*f = '\0';
-		if (rmdir(fn) == -1)
-			goto out;
-	} while ((f = strrchr(fn, '/')) != NULL);
-	rmdir(fn);
-out:
-	free(fn);
-}
-
-static int
-copy_fd(int from_fd, int to_fd)
-{
-	char buffer[16384];
-	char *wbuf;
-	ssize_t len, l;
-
-	for ( ;; ) {
-		len = read(from_fd, buffer, sizeof(buffer));
-		if (len == 0)
-			return 0;
-		if (len < 0) {
-			if (errno == EINTR || errno == EAGAIN)
-				continue;
-			return 1;
-		}
-		for (wbuf = buffer; len != 0; ) {
-			l = write(to_fd, wbuf, len);
-			if (l < 0) {
-				if (errno == EINTR || errno == EAGAIN)
-					continue;
-				return 1;
-			}
-			wbuf += l;
-			len -= l;
-		}
-	}
-}
-
-static int
-copy_file(const char *from, const struct stat *st, const char *to)
-{
-	int from_fd, to_fd, error = 1;
-
-	if ((from_fd = open(from, O_RDONLY)) == -1) {
-		perror(from);
-		return 1;
-	}
-	unlink(to);  /* make sure we don't inherit this file's mode. */
-	if ((to_fd = creat(to, st->st_mode)) < 0) {
-		perror(to);
-		close(from_fd);
-		return 1;
-	}
-#if defined(HAVE_FCHMOD)
-	(void) fchmod(to_fd, st->st_mode);
-#elif defined(HAVE_CHMOD)
-	(void) chmod(to, st->st_mode);
-#endif
-	if (copy_fd(from_fd, to_fd)) {
-		fprintf(stderr, "%s -> %s: %s\n", from, to, strerror(errno));
-		unlink(to);
-		goto out;
-	}
-
-	error = 0;
-out:
-	close(from_fd);
-	close(to_fd);
-
-	return error;
-}
-
-static int
-link_or_copy_file(const char *from, const struct stat *st, const char *to)
-{
-	if (link(from, to) == 0)
-		return 0;
-	if (errno != EXDEV && errno != EPERM &&
-	    errno != EMLINK && errno != ENOSYS) {
-		fprintf(stderr, "Could not link file `%s' to `%s': %s\n",
-		       from, to, strerror(errno));
-		return 1;
-	}
-	return copy_file(from, st, to);
-}
-
-static int
-ensure_nolinks(const char *filename)
-{
-	struct stat st;
-
-	if (stat(filename, &st) != 0) {
-		perror(filename);
-		return 1;
-	}
-	if (st.st_nlink > 1) {
-		char *tmpname = malloc(1 + strlen(filename) + 7 + 1), *c;
-		int from_fd = -1, to_fd = -1;
-		int error = 1;
-
-		if (!tmpname)
-			goto fail;
-		from_fd = open(filename, O_RDONLY);
-		if (from_fd == -1)
-			goto fail;
-
-		/* Temp file name is "path/to/.file.XXXXXX" */
-		strcpy(tmpname, filename);
-		strcat(tmpname, ".XXXXXX");
-		c = strrchr(tmpname, '/');
-		if (c == NULL)
-			c = tmpname;
-		else
-			c++;
-		memmove(c + 1, c, strlen(c) + 1);
-		*c = '.';
-
-		to_fd = mkstemp(tmpname);
-		if (to_fd == -1)
-			goto fail;
-		if (copy_fd(from_fd, to_fd))
-			goto fail;
-#if defined(HAVE_FCHMOD)
-		(void) fchmod(to_fd, st.st_mode);
-#elif defined(HAVE_CHMOD)
-		(void) chmod(tmpname, st.st_mode);
-#endif
-		close(from_fd);
-		from_fd = -1;
-		close(to_fd);
-		to_fd = -1;
-		if (rename(tmpname, filename))
-			goto fail;
-
-		error = 0;
-	fail:
-		if (error)
-			perror(filename);
-		if (from_fd != -1)
-			close(from_fd);
-		if (to_fd != -1)
-			close(to_fd);
-		free(tmpname);
-		return error;
-	} else
-		return 0;
-}
-
-static int
-process_file(const char *file)
-{
-	char *backup = malloc_nofail(
-		strlen(opt_prefix) + strlen(file) + strlen(opt_suffix) + 1);
-
-	sprintf(backup, "%s%s%s", opt_prefix, file, opt_suffix);
-
-	if (opt_what == what_backup) {
-		struct stat st;
-		int missing_file = (stat(file, &st) == -1 && errno == ENOENT);
-
-		unlink(backup);
-		create_parents(backup);
-		if (missing_file) {
-			int fd;
-
-			if (!opt_silent)
-				printf("New file %s\n", file);
-			/* Old versions of GNU patch create new files with mode==0.
-			   (This has been changed/fixed in patch version 2.6.)  */
-			if ((fd = creat(backup, 0666)) == -1) {
-				perror(backup);
-				goto fail;
-			}
-			close(fd);
-		} else {
-			if (!opt_silent)
-				printf("Copying %s\n", file);
-			if (opt_nolinks && st.st_nlink == 1) {
-				if (copy_file(file, &st, backup))
-					goto fail;
-			} else {
-				if (link_or_copy_file(file, &st, backup))
-					goto fail;
-				if (opt_nolinks && ensure_nolinks(file))
-					goto fail;
-			}
-			if (opt_touch)
-				(void) utime(backup, NULL);
-			else {
-				struct utimbuf ut;
-				ut.actime = ut.modtime = st.st_mtime;
-				(void) utime(backup, &ut);
-			}
-		}
-	} else if (opt_what == what_restore) {
-		struct stat st;
-
-		create_parents(file);
-		if (stat(backup, &st) != 0) {
-			perror(backup);
-			goto fail;
-		}
-		if (st.st_size == 0) {
-			if (unlink(file) == 0 || errno == ENOENT) {
-				if (!opt_silent)
-					printf("Removing %s\n", file);
-			} else {
-				perror(file);
-				goto fail;
-			}
-			if (!opt_keep_backup) {
-				unlink(backup);
-				remove_parents(backup);
-			}
-		} else {
-			if (!opt_silent)
-				printf("Restoring %s\n", file);
-			unlink(file);
-			if (opt_nolinks && st.st_nlink != 1) {
-				if (copy_file(backup, &st, file))
-					goto fail;
-			} else {
-				if (link_or_copy_file(backup, &st, file))
-					goto fail;
-				if (opt_nolinks && ensure_nolinks(file))
-					goto fail;
-			}
-			if (!opt_keep_backup) {
-				unlink(backup);
-				remove_parents(backup);
-			}
-			if (opt_touch)
-				(void) utime(file, NULL);
-			else {
-				struct utimbuf ut;
-				ut.actime = ut.modtime = st.st_mtime;
-				(void) utime(file, &ut);
-			}
-		}
-	} else if (opt_what == what_remove) {
-		unlink(backup);
-		remove_parents(backup);
-	} else if (opt_what == what_noop) {
-		struct stat st;
-		int missing_file = (stat(file, &st) == -1 && errno == ENOENT);
-
-		if (!missing_file && opt_nolinks) {
-			if (ensure_nolinks(file))
-				goto fail;
-		}
-	} else
-		goto fail;
-
-	free(backup);
-	return 0;
-
-fail:
-	free(backup);
-	return 1;
-}
-
-static int
-foreachdir_rec(const char *path, struct stat *st,
-	       int (*walk)(const char *, const struct stat *))
-{
-	DIR *dir;
-	struct dirent *dp;
-	int failed = 0;
-
-	struct path {
-		char *name;
-		struct path *next;
-	};
-	struct path *paths = NULL, *last_path = NULL;
-
-	if (access(path, R_OK|X_OK) || !(dir = opendir(path)))
-		return walk(path, NULL);
-	while ((dp = readdir(dir))) {
-		struct path *p;
-		size_t size;
-
-		if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
-			continue;
-
-		p = malloc_nofail(sizeof(*p));
-		if (!last_path)
-			paths = p;
-		else
-			last_path->next = p;
-		p->next = NULL;
-		last_path = p;
-
-		size = strlen(path) + 1 + strlen(dp->d_name) + 1;
-		p->name = malloc_nofail(size);
-		sprintf(p->name, "%s/%s", path, dp->d_name);
-	}
-	if (closedir(dir) != 0)
-		failed = -1;
-
-	while (paths != NULL) {
-		struct path *next;
-
-		if (lstat(paths->name, st))
-			continue;  /* file has disappeared meanwhile */
-		if (S_ISDIR(st->st_mode)) {
-			failed = foreachdir_rec(paths->name, st, walk);
-			if (failed)
-				goto out;
-		} else {
-			failed = walk(paths->name, st);
-			if (failed)
-				goto out;
-		}
-		next = paths->next;
-		free(paths->name);
-		free(paths);
-		paths = next;
-	}
-
-out:
-	return failed;
-}
-
-static int
-foreachdir(const char *path,
-	   int (*walk)(const char *, const struct stat *))
-{
-	struct stat st;
-
-	if (lstat(path, &st))
-		return walk(path, NULL);
-	return foreachdir_rec(path, &st, walk);
-}
-
-static int
-walk(const char *path, const struct stat *st)
-{
-	size_t prefix_len=strlen(opt_prefix), suffix_len=strlen(opt_suffix);
-	size_t len = strlen(path);
-	char *p;
-	int ret;
-
-	if (!st) {
-		perror(path);
-		return 1;
-	}
-	if (!S_ISREG(st->st_mode))
-		return 0;
-	if (strncmp(opt_prefix, path, prefix_len))
-		return 0;  /* prefix does not match */
-	if (len < suffix_len || strcmp(opt_suffix, path + len - suffix_len))
-		return 0;  /* suffix does not match */
-
-	p = malloc_nofail(len - prefix_len - suffix_len + 1);
-	memcpy(p, path + prefix_len, len - prefix_len - suffix_len);
-	p[len - prefix_len - suffix_len] = '\0';
-	ret = process_file(p);
-	free(p);
-	return ret;
-}
-
-int
-main(int argc, char *argv[])
-{
-	int opt, status = 0;
-
-	progname = argv[0];
-
-	while ((opt = getopt(argc, argv, "brkxB:z:f:shLt")) != -1) {
-		switch(opt) {
-			case 'b':
-				opt_what = what_backup;
-				break;
-
-			case 'r':
-				opt_what = what_restore;
-				break;
-
-			case 'k':
-				opt_keep_backup = 1;
-				break;
-
-			case 'x':
-				opt_what = what_remove;
-				break;
-
-			case 'B':
-				opt_prefix = optarg;
-				break;
-
-			case 'f':
-				opt_file = optarg;
-				break;
-
-			case 'z':
-				opt_suffix = optarg;
-				break;
-
-			case 's':
-				opt_silent = 1;
-				break;
-
-			case 'L':
-				opt_nolinks = 1;
-				break;
-
-			case 't':
-				opt_touch = 1;
-				break;
-
-			case 'h':
-			default:
-				usage();
-				return 0;
-		}
-	}
-
-	if ((*opt_prefix == '\0' && *opt_suffix == '\0') ||
-	    (opt_file == NULL && optind == argc)) {
-		usage();
-		return 1;
-	}
-
-	if (opt_file != NULL) {
-		FILE *file;
-		char line[LINE_LENGTH];
-
-		if (!strcmp(opt_file, "-")) {
-			file = stdin;
-		} else {
-			if ((file = fopen(opt_file, "r")) == NULL) {
-				perror(opt_file);
-				return 1;
-			}
-		}
-
-		while (fgets(line, sizeof(line), file)) {
-			char *l = strchr(line, '\0');
-
-			if (l > line && *(l-1) == '\n')
-				*(l-1) = '\0';
-			if (*line == '\0')
-				continue;
-
-			if ((status = process_file(line)) != 0)
-				return status;
-		}
-
-		if (file != stdin) {
-			fclose(file);
-		}
-	}
-	for (; optind < argc; optind++) {
-		if (strcmp(argv[optind], "-") == 0) {
-			struct stat st;
-			char *dir = strdup(opt_prefix), *d = strrchr(dir, '/');
-			if (d)
-				*d = '\0';
-			else
-				d = ".";
-			if (stat(dir, &st) == 0) {
-				status = foreachdir(dir, walk);
-				if (status == -1)
-					perror(dir);
-			}
-			free(dir);
-		} else
-			status = process_file(argv[optind]);
-		if (status)
-			return status;
-	}
-
-	return status;
-}
diff --git a/quilt.changes b/quilt.changes
index 0b0b92f..a553490 100644
--- a/quilt.changes
+++ b/quilt.changes
@@ -1,4 +1,11 @@
 -------------------------------------------------------------------
+Wed Feb  1 17:06:24 CET 2012 - jdelvare@suse.de
+
+- Finally get rid of the old C implementation of backup-files,
+  together with all the related checks in configure and variables
+  in Makefile.
+
+-------------------------------------------------------------------
 Wed Feb  1 17:02:32 CET 2012 - jdelvare@suse.de
 
 - backup-files: Avoid relying on GNU-specific extensions of stat,