diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index be3caea1f1268a70dad3013d1da2da88ef4c0b57..dbdd789bdf2479d40e29031abaa8ae6239e8af3c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2006-10-14  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
+	* gcc.dg/pthread-init-2.c (dg-options): Define _POSIX_C_SOURCE=199506L
+	on Solaris 2.5.1 too.
+
 2006-10-13  Eric Christopher  <echristo@apple.com>
 
 	* gcc.dg/pr25993.c: Skip for darwin.
diff --git a/gcc/testsuite/gcc.dg/pthread-init-2.c b/gcc/testsuite/gcc.dg/pthread-init-2.c
index 2aebd6e2286df50f0c379b711f790947ab1bf5f0..3a4d83eab2bf28c0361fec99124701ddfe84ca3d 100644
--- a/gcc/testsuite/gcc.dg/pthread-init-2.c
+++ b/gcc/testsuite/gcc.dg/pthread-init-2.c
@@ -6,7 +6,7 @@
 
 /* { dg-do compile } */
 /* { dg-options "-Wextra -Wall -ansi" } */
-/* { dg-options "-Wextra -Wall -ansi -D_POSIX_C_SOURCE=199506L" { target { hppa*-*-hpux* } } } */
+/* { dg-options "-Wextra -Wall -ansi -D_POSIX_C_SOURCE=199506L" { target { hppa*-*-hpux* *-*-solaris2.5.1 } } } */
 
 #include "pthread-init-common.h"