crosstool-ng: patches/glibc/2.9/150-regex-BZ697.patch@7ede374110e5

config: add an option not to remove the destination directory

In certain circumstances, removing the destination/installation directory
is a bad idea. For example, when the build environment is already taking
care of sanitising the build tree, and pre-installs stuff in there, it is
a very bad idea to remove the destination directory.

This happens now in buildroot, as the crostool-NG backend now installs the
toolchain in the common host-tools directory, and pre-install there a few
host-utilities (eg. host-automake and host-gawk).

Provide a config knob to turn on/off the removal of the destination
directory, defaulting to 'y' (previous behavior), and forced to 'n' when
used as a backend.

Reported-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

     1 Original patch from: gentoo/src/patchsets/glibc/2.9/0053_all_glibc-2.9-regex-BZ697.patch

     3 -= BEGIN original header =-

     4 http://sourceware.org/ml/libc-alpha/2009-01/msg00006.html

     6 From 37bdc055ceeb6b1144c07448a7210d9ab3fbb2f5 Mon Sep 17 00:00:00 2001

     7 From: Ulrich Drepper <drepper@redhat.com>

     8 Date: Thu, 8 Jan 2009 00:47:05 +0000

     9 Subject: [PATCH] (prune_impossible_nodes): Handle sifted_states[0] being NULL also if

    10  there are no backreferences.

    12 -= END original header =-

    14 diff -durN glibc-2_9.orig/posix/regexec.c glibc-2_9/posix/regexec.c

    15 --- glibc-2_9.orig/posix/regexec.c	2007-10-12 19:47:13.000000000 +0200

    16 +++ glibc-2_9/posix/regexec.c	2009-02-02 22:00:43.000000000 +0100

    17 @@ -1004,6 +1004,11 @@

    18        re_node_set_free (&sctx.limits);

    19        if (BE (ret != REG_NOERROR, 0))

    20  	goto free_return;

    21 +      if (sifted_states[0] == NULL)

    22 +	{

    23 +	  ret = REG_NOMATCH;

    24 +	  goto free_return;

    25 +	}

    26      }

    27    re_free (mctx->state_log);

    28    mctx->state_log = sifted_states;

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Fri Jan 28 22:06:49 2011 +0100 (2011-01-28)
changeset 2284	7ede374110e5
parent 1201	c9967a6e3b25
permissions	-rw-r--r--