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-rw-r--r--sysdeps/unix/sysv/linux/dl-librecon.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-librecon.h b/sysdeps/unix/sysv/linux/dl-librecon.h
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+++ b/sysdeps/unix/sysv/linux/dl-librecon.h
@@ -0,0 +1,49 @@
+/* Optional code to distinguish library flavours.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _DL_LIBRECON_H
+#define _DL_LIBRECON_H	1
+
+/* Recognizing extra environment variables.  */
+#define EXTRA_LD_ENVVARS \
+  case 13:								      \
+    if (memcmp (&envline[3], "ASSUME_KERNEL", 13) == 0)			      \
+      {									      \
+	unsigned long int i, j, osversion = 0;				      \
+	char *p = &envline[17], *q;					      \
+									      \
+	for (i = 0; i < 3; i++, p = q + 1)				      \
+	  {								      \
+	    j = __strtoul_internal (p, &q, 0, 0);			      \
+	    if (j >= 255 || p == q || (i < 2 && *q && *q != '.'))	      \
+	      {								      \
+		osversion = 0;						      \
+		break;							      \
+	      }								      \
+	    osversion |= j << (16 - 8 * i);				      \
+	    if (!*q)							      \
+	      break;							      \
+	  }								      \
+	if (osversion)							      \
+	  _dl_osversion = osversion;					      \
+	break;								      \
+      }
+
+#endif /* dl-librecon.h */