crosstool-ng: patches/gcc/4.4.2/210-arm-unbreak-armv4t.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/arm/linux-eabi.h gcc-4.4.0/gcc/config/arm/linux-eabi.h

     2 --- gcc-4.4.0.orig/gcc/config/arm/linux-eabi.h	2007-11-08 14:44:09.000000000 +0100

     3 +++ gcc-4.4.0/gcc/config/arm/linux-eabi.h	2009-05-27 21:38:26.000000000 +0200

     4 @@ -44,7 +44,7 @@

     5     The ARM10TDMI core is the default for armv5t, so set

     6     SUBTARGET_CPU_DEFAULT to achieve this.  */

     7  #undef  SUBTARGET_CPU_DEFAULT

     8 -#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi

     9 +#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi

    11  /* TARGET_BIG_ENDIAN_DEFAULT is set in

    12     config.gcc for big endian configurations.  */

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 1544	2228ea3f6b79
permissions	-rw-r--r--