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--- valgrind/configure.in.jj	2010-05-04 17:19:22.000000000 -0400
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+++ valgrind/configure.in	2010-05-04 17:23:06.691274000 -0400
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@@ -666,6 +666,16 @@ AC_EGREP_CPP([GLIBC_211], [
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 ],
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 GLIBC_VERSION="2.11")
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+AC_EGREP_CPP([GLIBC_212], [
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+#include <features.h>
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+#ifdef __GNU_LIBRARY__
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+ #if (__GLIBC__ == 2 && __GLIBC_MINOR__ == 12)
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+  GLIBC_212
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+ #endif
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+#endif
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+],
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+GLIBC_VERSION="2.12")
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+
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 AC_EGREP_CPP([AIX5_LIBC], [
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 #include <standards.h>
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 #if defined(_AIXVERSION_510) || defined(_AIXVERSION_520) || defined(_AIXVERSION_530)
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@@ -759,6 +769,13 @@ case "${GLIBC_VERSION}" in
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 	DEFAULT_SUPP="glibc-2.34567-NPTL-helgrind.supp ${DEFAULT_SUPP}"
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 	DEFAULT_SUPP="glibc-2.X-drd.supp ${DEFAULT_SUPP}"
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 	;;
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+     2.12)
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+	AC_MSG_RESULT(2.12 family)
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+	AC_DEFINE([GLIBC_2_12], 1, [Define to 1 if you're using glibc 2.12.x])
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+	DEFAULT_SUPP="glibc-2.X.supp ${DEFAULT_SUPP}"
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+	DEFAULT_SUPP="glibc-2.34567-NPTL-helgrind.supp ${DEFAULT_SUPP}"
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+	DEFAULT_SUPP="glibc-2.X-drd.supp ${DEFAULT_SUPP}"
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+	;;
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      aix5)
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 	AC_MSG_RESULT(AIX 5.1 or 5.2 or 5.3)
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 	AC_DEFINE([AIX5_LIBC], 1, [Define to 1 if you're using AIX 5.1 or 5.2 or 5.3])
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@@ -772,7 +789,7 @@ case "${GLIBC_VERSION}" in
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      *)
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 	AC_MSG_RESULT(unsupported version)
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-	AC_MSG_ERROR([Valgrind requires glibc version 2.2 - 2.11])
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+	AC_MSG_ERROR([Valgrind requires glibc version 2.2 - 2.12])
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 	AC_MSG_ERROR([or AIX 5.1 or 5.2 or 5.3 GLIBC_VERSION])
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 	AC_MSG_ERROR([or Darwin libc])
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 	;;
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--- valgrind/config.h.in.jj	2010-05-04 17:19:22.000000000 -0400
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+++ valgrind/config.h.in	2010-05-04 17:23:37.788211000 -0400
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@@ -18,6 +18,9 @@
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 /* Define to 1 if you're using glibc 2.11.x */
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 #undef GLIBC_2_11
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+/* Define to 1 if you're using glibc 2.12.x */
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+#undef GLIBC_2_12
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+
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 /* Define to 1 if you're using glibc 2.2.x */
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 #undef GLIBC_2_2
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--- valgrind/configure.jj	2010-05-04 17:19:22.000000000 -0400
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+++ valgrind/configure	2010-05-04 17:24:45.271471000 -0400
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@@ -5047,6 +5047,28 @@ cat confdefs.h >>conftest.$ac_ext
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 cat >>conftest.$ac_ext <<_ACEOF
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 /* end confdefs.h.  */
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+#include <features.h>
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+#ifdef __GNU_LIBRARY__
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+ #if (__GLIBC__ == 2 && __GLIBC_MINOR__ == 12)
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+  GLIBC_212
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+ #endif
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+#endif
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+
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+_ACEOF
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+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
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+  $EGREP "GLIBC_212" >/dev/null 2>&1; then
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+  GLIBC_VERSION="2.12"
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+fi
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+rm -f conftest*
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+
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+
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+cat >conftest.$ac_ext <<_ACEOF
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+/* confdefs.h.  */
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+_ACEOF
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+cat confdefs.h >>conftest.$ac_ext
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+cat >>conftest.$ac_ext <<_ACEOF
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+/* end confdefs.h.  */
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+
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 #include <standards.h>
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 #if defined(_AIXVERSION_510) || defined(_AIXVERSION_520) || defined(_AIXVERSION_530)
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   AIX5_LIBC
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@@ -5208,6 +5230,18 @@ _ACEOF
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 	DEFAULT_SUPP="glibc-2.34567-NPTL-helgrind.supp ${DEFAULT_SUPP}"
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 	DEFAULT_SUPP="glibc-2.X-drd.supp ${DEFAULT_SUPP}"
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 	;;
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+     2.12)
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+	echo "$as_me:$LINENO: result: 2.12 family" >&5
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+echo "${ECHO_T}2.12 family" >&6
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+
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+cat >>confdefs.h <<\_ACEOF
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+#define GLIBC_2_12 1
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+_ACEOF
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+
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+	DEFAULT_SUPP="glibc-2.X.supp ${DEFAULT_SUPP}"
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+	DEFAULT_SUPP="glibc-2.34567-NPTL-helgrind.supp ${DEFAULT_SUPP}"
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+	DEFAULT_SUPP="glibc-2.X-drd.supp ${DEFAULT_SUPP}"
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+	;;
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      aix5)
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 	echo "$as_me:$LINENO: result: AIX 5.1 or 5.2 or 5.3" >&5
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 echo "${ECHO_T}AIX 5.1 or 5.2 or 5.3" >&6
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@@ -5232,8 +5266,8 @@ _ACEOF
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      *)
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 	echo "$as_me:$LINENO: result: unsupported version" >&5
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 echo "${ECHO_T}unsupported version" >&6
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-	{ { echo "$as_me:$LINENO: error: Valgrind requires glibc version 2.2 - 2.11" >&5
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-echo "$as_me: error: Valgrind requires glibc version 2.2 - 2.11" >&2;}
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+	{ { echo "$as_me:$LINENO: error: Valgrind requires glibc version 2.2 - 2.12" >&5
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+echo "$as_me: error: Valgrind requires glibc version 2.2 - 2.12" >&2;}
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    { (exit 1); exit 1; }; }
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 	{ { echo "$as_me:$LINENO: error: or AIX 5.1 or 5.2 or 5.3 GLIBC_VERSION" >&5
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 echo "$as_me: error: or AIX 5.1 or 5.2 or 5.3 GLIBC_VERSION" >&2;}