crosstool-ng: patches/glibc/2.7/280-sh-fix-kernel-headers-location.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 glibc-2.7.orig/sysdeps/unix/sysv/linux/sh/sys/procfs.h glibc-2.7/sysdeps/unix/sysv/linux/sh/sys/procfs.h

     2 --- glibc-2.7.orig/sysdeps/unix/sysv/linux/sh/sys/procfs.h	2008-10-22 21:23:32.000000000 +0200

     3 +++ glibc-2.7/sysdeps/unix/sysv/linux/sh/sys/procfs.h	2008-10-22 21:41:54.000000000 +0200

     4 @@ -29,6 +29,7 @@

     5  #include <sys/types.h>

     6  #include <sys/ucontext.h>

     7  #include <sys/user.h>

     8 +#include <asm/ptrace.h>

    10  __BEGIN_DECLS

    12 diff -durN glibc-2.7.orig/sysdeps/unix/sysv/linux/sh/sys/user.h glibc-2.7/sysdeps/unix/sysv/linux/sh/sys/user.h

    13 --- glibc-2.7.orig/sysdeps/unix/sysv/linux/sh/sys/user.h	2008-10-22 21:23:32.000000000 +0200

    14 +++ glibc-2.7/sysdeps/unix/sysv/linux/sh/sys/user.h	2008-10-22 21:33:34.000000000 +0200

    15 @@ -21,8 +21,6 @@

    17  #include <features.h>

    19 -#include <asm/user.h>

    20 -

    21  #undef start_thread

    23  #endif  /* sys/user.h */

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Sep 12 23:51:25 2010 +0200 (2010-09-12)
changeset 2123	ff2181adbd28
parent 962	2ba4393e0441
permissions	-rw-r--r--