crosstool-ng: patches/gcc/4.4.0/170-sparc64-bsd.patch@ff2181adbd28

cc/gcc: disable complibs if not selected

Force gcc to not link with some companion libraries when
there are not needed (because selected-out).

There is no option to tell gcc *not* to build the Graphite and/or
LTO stuff. They *will* be built if gcc finds the suitable companion
libraries. If we do not provide them, but the host has them, then
gcc *will* find them, and link with them.

Consider the following:
- host has suitable PPL and CLooG (eg. Debian Squeeze)
- user wants to build gcc>=4.4
- user de-selects GRAPHITE
- gcc will find the hosts PPL and CLooG, and will use them
- the user moves the toolchain to an older host that does
not have them (eg. Debian Lenny)
- the toolchain fails, when it was properly setup not to

So, explicitly tell gcc *not* to use unneeded companion libs.

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

     1 diff -durN gcc-4.4.0.orig/gcc/config/sparc/freebsd.h gcc-4.4.0/gcc/config/sparc/freebsd.h

     2 --- gcc-4.4.0.orig/gcc/config/sparc/freebsd.h	2007-08-02 12:49:31.000000000 +0200

     3 +++ gcc-4.4.0/gcc/config/sparc/freebsd.h	2009-05-27 21:38:16.000000000 +0200

     4 @@ -25,9 +25,22 @@

     5  /* FreeBSD needs the platform name (sparc64) defined.

     6     Emacs needs to know if the arch is 64 or 32-bits.  */

     8 -#undef  CPP_CPU64_DEFAULT_SPEC

     9 -#define CPP_CPU64_DEFAULT_SPEC \

    10 -  "-D__sparc64__ -D__sparc_v9__ -D__sparcv9 -D__arch64__"

    11 +#undef  FBSD_TARGET_CPU_CPP_BUILTINS

    12 +#define FBSD_TARGET_CPU_CPP_BUILTINS()                  \

    13 +  do                                                    \

    14 +    {                                                   \

    15 +      if (TARGET_ARCH64)                                \

    16 +        {                                               \

    17 +          builtin_define ("__sparc64__");               \

    18 +          builtin_define ("__sparc_v9__");              \

    19 +          builtin_define ("__sparcv9");                 \

    20 +        }                                               \

    21 +      else                                              \

    22 +        builtin_define ("__sparc");                     \

    23 +      builtin_define ("__sparc__");                     \

    24 +    }                                                   \

    25 +  while (0)

    26 +

    28  #define LINK_SPEC "%(link_arch)						\

    29    %{!mno-relax:%{!r:-relax}}						\

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Sep 12 23:51:25 2010 +0200 (2010-09-12)
changeset 2123	ff2181adbd28
permissions	-rw-r--r--