diff --git a/cpukit/score/cpu/unix/ChangeLog b/cpukit/score/cpu/unix/ChangeLog
index 6f136dca72..48aee7b0cc 100644
--- a/cpukit/score/cpu/unix/ChangeLog
+++ b/cpukit/score/cpu/unix/ChangeLog
@@ -1,3 +1,7 @@
+2004-04-12	Ralf Corsepius <ralf_corsepius@rtems.org>
+
+	* rtems/score/cpu.h: Remove defining _POSIX_C_SOURCE for solaris.
+
 2004-04-09	Ralf Corsepius <ralf_corsepius@rtems.org>
 
 	* Makefile.am: Remove LIBC_DEFINES (Unsupported).
diff --git a/cpukit/score/cpu/unix/rtems/score/cpu.h b/cpukit/score/cpu/unix/rtems/score/cpu.h
index 848dda1e4a..901b5b5af1 100644
--- a/cpukit/score/cpu/unix/rtems/score/cpu.h
+++ b/cpukit/score/cpu/unix/rtems/score/cpu.h
@@ -24,11 +24,6 @@ extern "C" {
 #include <rtems/score/types.h>
 #endif
 
-#if defined(solaris2)
-#undef  _POSIX_C_SOURCE
-#define _POSIX_C_SOURCE 3
-#endif
-
 #if defined(linux)
 #define MALLOC_0_RETURNS_NULL
 #endif