crosstool-ng: patches/gcc/4.4.0/100-alpha-mieee-default.patch@30644208c955

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-4.4.0.orig/gcc/config/alpha/alpha.h gcc-4.4.0/gcc/config/alpha/alpha.h

     2 --- gcc-4.4.0.orig/gcc/config/alpha/alpha.h	2009-02-20 16:20:38.000000000 +0100

     3 +++ gcc-4.4.0/gcc/config/alpha/alpha.h	2009-05-27 21:37:58.000000000 +0200

     4 @@ -95,6 +95,8 @@

     5    while (0)

     6  #endif

     8 +#define CPP_SPEC "%{!no-ieee:-mieee}"

9 +

    10  #define WORD_SWITCH_TAKES_ARG(STR)		\

    11   (!strcmp (STR, "rpath") || DEFAULT_WORD_SWITCH_TAKES_ARG(STR))

    13 diff -durN gcc-4.4.0.orig/gcc/config/alpha/alpha.opt gcc-4.4.0/gcc/config/alpha/alpha.opt

    14 --- gcc-4.4.0.orig/gcc/config/alpha/alpha.opt	2007-08-02 12:49:31.000000000 +0200

    15 +++ gcc-4.4.0/gcc/config/alpha/alpha.opt	2009-05-27 21:37:58.000000000 +0200

    16 @@ -39,7 +39,7 @@

    17  Request IEEE-conformant math library routines (OSF/1)

    19  mieee

    20 -Target Report RejectNegative Mask(IEEE)

    21 +Target Report Mask(IEEE)

    22  Emit IEEE-conformant code, without inexact exceptions

    24  mieee-with-inexact

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--