crosstool-ng: patches/glibc/ports-2.10.1/660-debug-readlink_chk-readklinkat

configure: add possibility to set arbitrary variable in check_for

If check_for is able to find the required prog/inc/lib, allow it to
set an arbitrary variable to 'y'. This variable is then pushed down
to the kconfig definition.

For example:
has_or_abort prog=foobar kconfig=has_foobar

If foobar is available, it yields a kconfig variable defaulting to y:
config CONFIGURE_has_foobar
bool
default y

If foobar is missing, it yields a kconfig variable defaulting to n:
config CONFIGURE_has_foobar
bool

Thus it is possible to depends on that variabel to show/hide options:
config SOME_FEATURE
bool
prompt "Some feature"
depends on CONFIGURE_has_foobar

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

     1 diff -dur glibc-cvs-2.9.orig/debug/readlink_chk.c glibc-cvs-2.9/debug/readlink_chk.c

     2 --- glibc-cvs-2.9.orig/debug/readlink_chk.c	2005-03-01 01:41:15.000000000 +0100

     3 +++ glibc-cvs-2.9/debug/readlink_chk.c	2009-06-01 10:59:37.000000000 +0200

     4 @@ -25,7 +25,7 @@

     7  ssize_t

     8 -__readlink_chk (const char *path, void *buf, size_t len, size_t buflen)

     9 +__readlink_chk (const char *path, char *buf, size_t len, size_t buflen)

    10  {

    11    if (len > buflen)

    12      __chk_fail ();

    13 diff -dur glibc-cvs-2.9.orig/debug/readlinkat_chk.c glibc-cvs-2.9/debug/readlinkat_chk.c

    14 --- glibc-cvs-2.9.orig/debug/readlinkat_chk.c	2006-04-24 18:56:12.000000000 +0200

    15 +++ glibc-cvs-2.9/debug/readlinkat_chk.c	2009-06-01 11:07:26.000000000 +0200

    16 @@ -21,7 +21,7 @@

    19  ssize_t

    20 -__readlinkat_chk (int fd, const char *path, void *buf, size_t len,

    21 +__readlinkat_chk (int fd, const char *path, char *buf, size_t len,

    22  		  size_t buflen)

    23  {

    24    if (len > buflen)

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Thu May 26 22:51:03 2011 +0200 (2011-05-26)
changeset 2481	30644208c955
parent 1394	51d112dfbe79
permissions	-rw-r--r--