patches/glibc/ports-2.10.1/590-sh-set-fpscr-proto.patch
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"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
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Sun Sep 12 23:51:25 2010 +0200 (2010-09-12) |
changeset 2123 |
ff2181adbd28 |
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>
yann@1625
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diff -durN glibc-2.10.1.orig/sysdeps/sh/sh4/fpu/fpu_control.h glibc-2.10.1/sysdeps/sh/sh4/fpu/fpu_control.h
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--- glibc-2.10.1.orig/sysdeps/sh/sh4/fpu/fpu_control.h 2001-07-06 06:56:04.000000000 +0200
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+++ glibc-2.10.1/sysdeps/sh/sh4/fpu/fpu_control.h 2009-11-13 00:51:26.000000000 +0100
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@@ -45,6 +45,7 @@
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#define _FPU_GETCW(cw) __asm__ ("sts fpscr,%0" : "=r" (cw))
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#if defined __GNUC__
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+extern void __set_fpscr(unsigned long);
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#define _FPU_SETCW(cw) __set_fpscr ((cw))
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#else
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#define _FPU_SETCW(cw) __asm__ ("lds %0,fpscr" : : "r" (cw))
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