patches/glibc/2.7/250-sh-chop-linux-version.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Dec 12 21:41:16 2011 +0200 (2011-12-12)
branch1.13
changeset 2845 0dc9d4931246
permissions -rw-r--r--
scripts: unset CONFIG_SITE

Some distributions (eg. openSUSE 12.1) systematically export
the CONFIG_SITE environment variable to point to a custom
script setting misc paths for ./configure.

This can, and does, break when cross-compiling for architectures
that are not supported by this script.

The simple workaround is to unset this variable.
NB: buildroot has a similar fix:
http://git.buildroot.org/buildroot/commit/?id=12c9f7dd6dee9c6029b4f9a12d6aac1516911ab4

Reported-by: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 21f4f28e60ec0342133086c9a51e7f0e5b181fb8)
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--- glibc-2.7/sysdeps/unix/sysv/linux/dl-osinfo.h.orig	2007-09-15 23:54:08.000000000 +0100
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+++ glibc-2.7/sysdeps/unix/sysv/linux/dl-osinfo.h	2008-08-20 09:26:26.000000000 +0100
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@@ -83,6 +83,10 @@
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   int parts;
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   char *cp;
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   struct utsname uts;
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+  int dotsfound = 0;
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+  int versionindex = 0;
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+  char *choppoint;
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+
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   /* Try the uname system call.  */
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   if (__uname (&uts))
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@@ -102,8 +106,34 @@
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   else
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     buf = uts.release;
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+  /* We are only interested in the first three kernel numbers, so */
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+  /* chop off anything past that: */
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+
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+  choppoint = buf;
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+  while (1)
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+    {
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+      versionindex++;
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+      if (versionindex == 63) break;
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+      if (*choppoint == '.') dotsfound++;
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+      choppoint++;
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+      if (dotsfound == 2)
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+      {
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+        if (*choppoint == '0' || *choppoint == '1'
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+          || *choppoint == '2' || *choppoint == '3'
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+          || *choppoint == '4' || *choppoint == '5'
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+          || *choppoint == '6' || *choppoint == '7'
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+          || *choppoint == '8' || *choppoint == '9')
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+          continue;
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+        else
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+          {
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+            *choppoint = 0;
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+            break;
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+          }
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+      }
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+    }
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+
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   /* Now convert it into a number.  The string consists of at most
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-     three parts.  */
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+     three parts.  Now it does, anyway.  ;-)  */
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   version = 0;
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   parts = 0;
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   cp = buf;