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Fix -Wundef warning. Upstream removed the __ASSUME_ARG_MAX_STACK_BASE
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preprocessor conditional as part of this commit:
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commit 637461d96563f3b7405df5b124ccfe843e537374
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Author: Joseph Myers <joseph@codesourcery.com>
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Date: Mon May 12 22:48:25 2014 +0000
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Clean up kernel version conditionals for pre-2.6.32 kernels.
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This patch does some initial cleanup, following the move to 2.6.32
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minimum kernel version, by removing __LINUX_KERNEL_VERSION
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conditionals that are now always-true or always-false. In the case of
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__ASSUME_ARG_MAX_STACK_BASED, where the conditional used a kernel
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version that was itself in a macro, the associated sysconf.c code is
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also cleaned up and __ASSUME_ARG_MAX_STACK_BASED removed completely.
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diff --git a/sysdeps/unix/sysv/linux/sysconf.c b/sysdeps/unix/sysv/linux/sysconf.c
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index 47ce5ef07cce7888..05cbb0879e9748d5 100644
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--- a/sysdeps/unix/sysv/linux/sysconf.c
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+++ b/sysdeps/unix/sysv/linux/sysconf.c
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@@ -88,7 +88,7 @@ __sysconf (int name)
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return HAS_CPUCLOCK (name);
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case _SC_ARG_MAX:
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-#if !__ASSUME_ARG_MAX_STACK_BASED
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+#ifndef __ASSUME_ARG_MAX_STACK_BASED
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/* Determine whether this is a kernel with an argument limit
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determined by the stack size. */
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if (GLRO(dl_discover_osversion) ()
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