crosstool-ng: patches/gcc/4.2.3/280-eabi

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 -durN gcc-4.2.3.orig/gcc/config/arm/linux-eabi.h gcc-4.2.3/gcc/config/arm/linux-eabi.h

     2 --- gcc-4.2.3.orig/gcc/config/arm/linux-eabi.h	2007-09-01 17:28:30.000000000 +0200

     3 +++ gcc-4.2.3/gcc/config/arm/linux-eabi.h	2008-05-25 23:47:36.000000000 +0200

     4 @@ -47,7 +47,8 @@

     5  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi

     7  #undef SUBTARGET_EXTRA_LINK_SPEC

     8 -#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi"

     9 +#define SUBTARGET_EXTRA_LINK_SPEC	\

    10 +	" %{mlittle-endian:-m armelf_linux_eabi} %{mbig-endian:-m armelfb_linux_eabi}"

    12  /* Use ld-linux.so.3 so that it will be possible to run "classic"

    13     GNU/Linux binaries on an EABI system.  */

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 533	81a582c81c13
permissions	-rw-r--r--