aix41.h (CPP_SPEC): Define _ANSI_C_SOURCE if -ansi is given.

* config/rs6000/aix41.h (CPP_SPEC): Define _ANSI_C_SOURCE if -ansi
is given.
* config/rs6000/aix43.h (CPP_SPEC): Likewise.
* config/rs6000/rs6000.h (CPP_SPEC): Moved to...
* config/rs6000/aix.h: then modified likewise.

From-SVN: r32797

gcc/ChangeLog

+2000-03-29  Alexandre Oliva  <oliva@lsd.ic.unicamp.br>
+
+	* config/rs6000/aix41.h (CPP_SPEC): Define _ANSI_C_SOURCE if -ansi
+	is given.
+	* config/rs6000/aix43.h (CPP_SPEC): Likewise.
+	* config/rs6000/rs6000.h (CPP_SPEC): Moved to...
+	* config/rs6000/aix.h: then modified likewise.
+
 2000-03-28  Richard Henderson  <rth@cygnus.com>
 
 	* rtl.h: Redistribute enum reg_note documentation. 

gcc/config/rs6000/aix.h

@@ -66,6 +66,13 @@ Boston, MA 02111-1307, USA.  */
 #define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 -D_LONG_LONG \
 -Asystem(unix) -Asystem(aix) -Acpu(rs6000) -Amachine(rs6000)"
 
+/* Define appropriate architecture macros for preprocessor depending on
+   target switches.  */
+
+#define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
+   %{ansi: -D_ANSI_C_SOURCE}\
+   %(cpp_cpu)"
+
 /* Tell the assembler to assume that all undefined names are external.
 
    Don't do this until the fixed IBM assembler is more generally available.

gcc/config/rs6000/aix41.h

@@ -44,6 +44,7 @@ Boston, MA 02111-1307, USA.  */
 
 #undef CPP_SPEC
 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
+   %{ansi: -D_ANSI_C_SOURCE}\
    %{mpe: -I/usr/lpp/ppe.poe/include}\
    %{mthreads: -D_THREAD_SAFE}\
    %(cpp_cpu)"

gcc/config/rs6000/aix43.h

@@ -105,6 +105,7 @@ do {									\
 
 #undef CPP_SPEC
 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
+   %{ansi: -D_ANSI_C_SOURCE}\
    %{maix64: -D__64BIT__ -D_ARCH_PPC}\
    %{mpe: -I/usr/lpp/ppe.poe/include}\
    %{mthreads: -D_THREAD_SAFE}\

gcc/config/rs6000/rs6000.h

@@ -43,11 +43,6 @@ Boston, MA 02111-1307, USA.  */
 #define TARGET_CPU_DEFAULT ((char *)0)
 #endif
 
-/* Define appropriate architecture macros for preprocessor depending on
-   target switches.  */
-
-#define CPP_SPEC "%{posix: -D_POSIX_SOURCE} %(cpp_cpu)"
-
 /* Common CPP definitions used by CPP_SPEC among the various targets
    for handling -mcpu=xxx switches.  */
 #define CPP_CPU_SPEC \