patches/strace/4.5.17/110-dont-use-REG_SYSCALL-for-sh.patch
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 747 d3e603e7c17c
permissions -rw-r--r--
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 Original patch from gentoo: ../../dev/crosstool-NG/ct-ng.trunk/patches/strace/4.5.17/110-dont-use-REG_SYSCALL-for-sh.patch
     2 -= BEGIN original header =-
     3 diff -dur strace-4.5.16.orig/process.c strace-4.5.16/process.c
     4 -= END original header =-
     5 diff -durN strace-4.5.17.orig/process.c strace-4.5.17/process.c
     6 --- strace-4.5.17.orig/process.c	2008-07-18 04:16:47.000000000 +0200
     7 +++ strace-4.5.17/process.c	2008-10-24 21:30:13.000000000 +0200
     8 @@ -2726,7 +2726,6 @@
     9         { 4*REG_GBR,            "4*REG_GBR"                             },
    10         { 4*REG_MACH,           "4*REG_MACH"                            },
    11         { 4*REG_MACL,           "4*REG_MACL"                            },
    12 -       { 4*REG_SYSCALL,        "4*REG_SYSCALL"                         },
    13         { 4*REG_FPUL,           "4*REG_FPUL"                            },
    14         { 4*REG_FPREG0,         "4*REG_FPREG0"                          },
    15         { 4*(REG_FPREG0+1),     "4*REG_FPREG1"                          },