crosstool-ng: patches/gcc/4.3.4/270-missing-execinfo

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 Original patch from: ../4.3.2/270-missing-execinfo_h.patch

     3 -= BEGIN original header =-

     4 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/uclibc/90_all_301-missing-execinfo_h.patch

     5 -= END original header =-

     7 diff -durN gcc-4.3.3.orig/boehm-gc/include/gc.h gcc-4.3.3/boehm-gc/include/gc.h

     8 --- gcc-4.3.3.orig/boehm-gc/include/gc.h	2007-04-23 23:10:09.000000000 +0200

     9 +++ gcc-4.3.3/boehm-gc/include/gc.h	2009-01-27 22:25:37.000000000 +0100

    10 @@ -503,7 +503,7 @@

    11  #if defined(__linux__) || defined(__GLIBC__)

    12  # include <features.h>

    13  # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \

    14 -     && !defined(__ia64__)

    15 +     && !defined(__ia64__) && !defined(__UCLIBC__)

    16  #   ifndef GC_HAVE_BUILTIN_BACKTRACE

    17  #     define GC_HAVE_BUILTIN_BACKTRACE

    18  #   endif

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