patches/glibc/ports-2.10.1/520-alpha-add-futex-defines.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
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>
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2009-05-19  Aurelien Jarno  <aurelien@aurel32.net>
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	* sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h: Define
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	FUTEX_WAIT_BITSET, FUTEX_WAKE_BITSET, FUTEX_CLOCK_REALTIME and
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	FUTEX_BITSET_MATCH_ANY.
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 ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h |    5 +++++
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 1 file changed, 5 insertions(+)
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diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h
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--- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h	2009-05-16 10:36:20.000000000 +0200
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+++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h	2009-11-13 00:51:11.000000000 +0100
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@@ -37,7 +37,12 @@
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 #define FUTEX_LOCK_PI		6
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 #define FUTEX_UNLOCK_PI		7
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 #define FUTEX_TRYLOCK_PI	8
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+#define FUTEX_WAIT_BITSET	9
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+#define FUTEX_WAKE_BITSET	10
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 #define FUTEX_PRIVATE_FLAG	128
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+#define FUTEX_CLOCK_REALTIME	256
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+
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+#define FUTEX_BITSET_MATCH_ANY	0xffffffff
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 /* Values for 'private' parameter of locking macros.  Yes, the
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    definition seems to be backwards.  But it is not.  The bit will be
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diff -durN glibc-2.10.1.orig/ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h glibc-2.10.1/ports/sysdeps/unix/sysv/linux/alpha/nptl/lowlevellock.h