re PR sanitizer/86090 ([ASAN] ASAN does not properly configure libbacktrace.)

2018-06-13  Denis Khalikov  <d.khalikov@partner.samsung.com>

libsanitizer/

	PR sanitizer/86090
	* configure.ac: Check for lstat and readlink.
	* configure, config.h.in: Rebuild.

From-SVN: r261564

libsanitizer/ChangeLog

+2018-06-13  Denis Khalikov  <d.khalikov@partner.samsung.com>
+
+        PR sanitizer/86090
+        * configure.ac: Check for lstat and readlink.
+        * configure, config.h.in: Rebuild.
+
 2018-05-31  Matthias Klose  <doko@ubuntu.com>
 
 	PR sanitizer/86012

libsanitizer/config.h.in

@@ -43,6 +43,12 @@
 /* Define to 1 if you have the <memory.h> header file. */
 #undef HAVE_MEMORY_H
 
+/* Define to 1 if you have the `lstat' function. */
+#undef HAVE_LSTAT
+
+/* Define to 1 if you have the `readlink' function. */
+#undef HAVE_READLINK
+
 /* Define to 1 if you have the <rpc/xdr.h> header file. */
 #undef HAVE_RPC_XDR_H
 

libsanitizer/configure

@@ -15509,7 +15509,7 @@ fi
 
 
 # Check for functions needed.
-for ac_func in clock_getres clock_gettime clock_settime
+for ac_func in clock_getres clock_gettime clock_settime lstat readlink
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"

libsanitizer/configure.ac

@@ -93,7 +93,7 @@ AM_CONDITIONAL(TSAN_SUPPORTED, [test "x$TSAN_SUPPORTED" = "xyes"])
 AM_CONDITIONAL(LSAN_SUPPORTED, [test "x$LSAN_SUPPORTED" = "xyes"])
 
 # Check for functions needed.
-AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime)
+AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime lstat readlink)
 
 # Common libraries that we need to link against for all sanitizer libs.
 link_sanitizer_common='-lpthread -lm'