1 files changed, 4 insertions, 38 deletions
diff --git a/gcc/config/rs6000/aix51.h b/gcc/config/rs6000/aix51.h
index 8b3fb2982c7..f0b9e7df503 100644
--- a/gcc/config/rs6000/aix51.h
+++ b/gcc/config/rs6000/aix51.h
@@ -103,10 +103,9 @@ do {									\
 #undef CPP_SPEC
 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
   %{ansi: -D_ANSI_C_SOURCE}\
-  %{maix64: -D__64BIT__ -D_ARCH_PPC -D__LONG_MAX__=9223372036854775807L}
+  %{maix64: -D__64BIT__ -D__LONG_MAX__=9223372036854775807L}
   %{mpe: -I/usr/lpp/ppe.poe/include}\
-  %{pthread: -D_THREAD_SAFE}\
-  %(cpp_cpu)"
+  %{pthread: -D_THREAD_SAFE}"
 
 /* The GNU C++ standard library requires that these macros be 
    defined.  */
@@ -116,42 +115,9 @@ do {									\
    -D_XOPEN_SOURCE_EXTENDED=1                   \
    -D_LARGE_FILE_API                            \
    -D_ALL_SOURCE                                \
-   %{maix64: -D__64BIT__ -D_ARCH_PPC -D__LONG_MAX__=9223372036854775807L}
+   %{maix64: -D__64BIT__ -D__LONG_MAX__=9223372036854775807L}
    %{mpe: -I/usr/lpp/ppe.poe/include}\
-   %{pthread: -D_THREAD_SAFE}\
-   %(cpp_cpu)"
-
-/* Common CPP definitions used by CPP_SPEC among the various targets
-   for handling -mcpu=xxx switches.  */
-#undef CPP_CPU_SPEC
-#define CPP_CPU_SPEC \
-"%{!mcpu*: %{!maix64: \
-  %{mpower: %{!mpower2: -D_ARCH_PWR}} \
-  %{mpower2: -D_ARCH_PWR2} \
-  %{mpowerpc*: -D_ARCH_PPC} \
-  %{!mpower*: %{!mpowerpc*: %(cpp_default)}}}} \
-%{mcpu=common: -D_ARCH_COM} \
-%{mcpu=power: -D_ARCH_PWR} \
-%{mcpu=power2: -D_ARCH_PWR2} \
-%{mcpu=power3: -D_ARCH_PPC} \
-%{mcpu=power4: -D_ARCH_PPC} \
-%{mcpu=powerpc: -D_ARCH_PPC} \
-%{mcpu=rios: -D_ARCH_PWR} \
-%{mcpu=rios1: -D_ARCH_PWR} \
-%{mcpu=rios2: -D_ARCH_PWR2} \
-%{mcpu=rsc: -D_ARCH_PWR} \
-%{mcpu=rsc1: -D_ARCH_PWR} \
-%{mcpu=rs64a: -D_ARCH_PPC} \
-%{mcpu=601: -D_ARCH_PPC -D_ARCH_PWR} \
-%{mcpu=602: -D_ARCH_PPC} \
-%{mcpu=603: -D_ARCH_PPC} \
-%{mcpu=603e: -D_ARCH_PPC} \
-%{mcpu=604: -D_ARCH_PPC} \
-%{mcpu=620: -D_ARCH_PPC} \
-%{mcpu=630: -D_ARCH_PPC}"
-
-#undef	CPP_DEFAULT_SPEC
-#define CPP_DEFAULT_SPEC "-D_ARCH_COM"
+   %{pthread: -D_THREAD_SAFE}"
 
 #undef TARGET_DEFAULT
 #define TARGET_DEFAULT MASK_NEW_MNEMONICS