patch/patch-backup-if-mismatch.patch

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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);