+++ /dev/null
-diff -up patch-2.6.1/src/patch.c.backup-if-mismatch patch-2.6.1/src/patch.c
---- patch-2.6.1/src/patch.c.backup-if-mismatch 2011-02-16 16:43:54.575850844 +0000
-+++ patch-2.6.1/src/patch.c 2011-02-16 16:44:56.907995789 +0000
-@@ -106,6 +106,7 @@ main (int argc, char **argv)
- char numbuf[LINENUM_LENGTH_BOUND + 1];
- bool written_to_rejname = false;
- bool apply_empty_patch = false;
-+ bool posixly_correct_set;
-
- exit_failure = 2;
- program_name = argv[0];
-@@ -125,7 +126,7 @@ main (int argc, char **argv)
- i < 0 ? shell_quoting_style : (enum quoting_style) i);
- }
-
-- posixly_correct = getenv ("POSIXLY_CORRECT") != 0;
-+ posixly_correct_set = posixly_correct = getenv ("POSIXLY_CORRECT") != 0;
- backup_if_mismatch = ! posixly_correct;
- patch_get = ((val = getenv ("PATCH_GET"))
- ? numeric_string (val, true, "PATCH_GET value")
-@@ -151,6 +152,10 @@ main (int argc, char **argv)
- Argv = argv;
- get_some_switches();
-
-+ /* Let --posix cause --no-backup-if-mismatch. */
-+ if (! posixly_correct_set && posixly_correct && backup_if_mismatch)
-+ backup_if_mismatch = false;
-+
- if (make_backups | backup_if_mismatch)
- backup_type = get_version (version_control_context, version_control);
-