diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3c8b7b55c72d..6db875f0c4ee 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2011-10-17  Sergio Durigan Junior  <sergiodj@redhat.com>
+
+	* configure.ac: Display `yes' if the SystemTap header has been
+	found.
+	* configure: Regenerate.
+
 2011-10-08  Andi Kleen  <ak@linux.intel.com>
 
 	PR other/50636
diff --git a/gcc/configure b/gcc/configure
index 4a54adfe3e80..7bd1d5db2a86 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -26483,6 +26483,7 @@ fi
 $as_echo_n "checking sys/sdt.h in the target C library... " >&6; }
 have_sys_sdt_h=no
 if test -f $target_header_dir/sys/sdt.h; then
+  have_sys_sdt_h=yes
 
 $as_echo "#define HAVE_SYS_SDT_H 1" >>confdefs.h
 
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 357902e8a916..353746f4a816 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -4578,6 +4578,7 @@ GCC_TARGET_TEMPLATE([HAVE_SYS_SDT_H])
 AC_MSG_CHECKING(sys/sdt.h in the target C library)
 have_sys_sdt_h=no
 if test -f $target_header_dir/sys/sdt.h; then
+  have_sys_sdt_h=yes
   AC_DEFINE(HAVE_SYS_SDT_H, 1,
             [Define if your target C library provides sys/sdt.h])
 fi