diff --git a/libphobos/configure b/libphobos/configure
index 98d8dc255c1..e461c7442b2 100755
--- a/libphobos/configure
+++ b/libphobos/configure
@@ -692,8 +692,6 @@ DRUNTIME_CPU_SYSTEMZ_FALSE
 DRUNTIME_CPU_SYSTEMZ_TRUE
 DRUNTIME_CPU_X86_FALSE
 DRUNTIME_CPU_X86_TRUE
-DRUNTIME_CPU_POWERPC64_FALSE
-DRUNTIME_CPU_POWERPC64_TRUE
 DRUNTIME_CPU_POWERPC_FALSE
 DRUNTIME_CPU_POWERPC_TRUE
 DRUNTIME_CPU_MIPS_FALSE
@@ -11649,7 +11647,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11652 "configure"
+#line 11650 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11755,7 +11753,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11758 "configure"
+#line 11756 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13991,12 +13989,9 @@ fi
                ;;
       mips*)   druntime_target_cpu_parsed="mips"
                ;;
-      powerpc|powerpcle)
+      powerpc*)
                druntime_target_cpu_parsed="powerpc"
                ;;
-      powerpc64|powerpc64le)
-               druntime_target_cpu_parsed="powerpc64"
-               ;;
       i[34567]86|x86_64)
                druntime_target_cpu_parsed="x86"
                ;;
@@ -14039,14 +14034,6 @@ else
   DRUNTIME_CPU_POWERPC_FALSE=
 fi
 
-   if test "$druntime_target_cpu_parsed" = "powerpc64"; then
-  DRUNTIME_CPU_POWERPC64_TRUE=
-  DRUNTIME_CPU_POWERPC64_FALSE='#'
-else
-  DRUNTIME_CPU_POWERPC64_TRUE='#'
-  DRUNTIME_CPU_POWERPC64_FALSE=
-fi
-
    if test "$druntime_target_cpu_parsed" = "x86"; then
   DRUNTIME_CPU_X86_TRUE=
   DRUNTIME_CPU_X86_FALSE='#'
@@ -15605,10 +15592,6 @@ if test -z "${DRUNTIME_CPU_POWERPC_TRUE}" && test -z "${DRUNTIME_CPU_POWERPC_FAL
   as_fn_error $? "conditional \"DRUNTIME_CPU_POWERPC\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
-if test -z "${DRUNTIME_CPU_POWERPC64_TRUE}" && test -z "${DRUNTIME_CPU_POWERPC64_FALSE}"; then
-  as_fn_error $? "conditional \"DRUNTIME_CPU_POWERPC64\" was never defined.
-Usually this means the macro was only invoked conditionally." "$LINENO" 5
-fi
 if test -z "${DRUNTIME_CPU_X86_TRUE}" && test -z "${DRUNTIME_CPU_X86_FALSE}"; then
   as_fn_error $? "conditional \"DRUNTIME_CPU_X86\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
diff --git a/libphobos/libdruntime/Makefile.am b/libphobos/libdruntime/Makefile.am
index e1f47d36f90..1b1c5689e7e 100644
--- a/libphobos/libdruntime/Makefile.am
+++ b/libphobos/libdruntime/Makefile.am
@@ -81,10 +81,8 @@ if DRUNTIME_CPU_MIPS
     DRUNTIME_SOURCES_CONFIGURED += config/mips/switchcontext.S
 endif
 if DRUNTIME_CPU_POWERPC
-    DRUNTIME_SOURCES_CONFIGURED += config/powerpc/switchcontext.S
-endif
-if DRUNTIME_CPU_POWERPC64
-    DRUNTIME_SOURCES_CONFIGURED += config/powerpc64/callwithstack.S
+    DRUNTIME_SOURCES_CONFIGURED += config/powerpc/switchcontext.S \
+				   config/powerpc64/callwithstack.S
 endif
 if DRUNTIME_CPU_X86
 if DRUNTIME_OS_MINGW
diff --git a/libphobos/libdruntime/Makefile.in b/libphobos/libdruntime/Makefile.in
index 53402842cb4..04e58bb9034 100644
--- a/libphobos/libdruntime/Makefile.in
+++ b/libphobos/libdruntime/Makefile.in
@@ -123,12 +123,13 @@ target_triplet = @target@
 @DRUNTIME_CPU_AARCH64_TRUE@am__append_11 = config/aarch64/switchcontext.S
 @DRUNTIME_CPU_ARM_TRUE@am__append_12 = config/arm/switchcontext.S
 @DRUNTIME_CPU_MIPS_TRUE@am__append_13 = config/mips/switchcontext.S
-@DRUNTIME_CPU_POWERPC_TRUE@am__append_14 = config/powerpc/switchcontext.S
-@DRUNTIME_CPU_POWERPC64_TRUE@am__append_15 = config/powerpc64/callwithstack.S
-@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_TRUE@am__append_16 = config/mingw/switchcontext.S
-@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_FALSE@am__append_17 = config/x86/switchcontext.S
-@DRUNTIME_CPU_SYSTEMZ_TRUE@am__append_18 = config/systemz/get_tls_offset.S
-@DRUNTIME_CPU_S390_TRUE@am__append_19 = config/s390/get_tls_offset.S
+@DRUNTIME_CPU_POWERPC_TRUE@am__append_14 = config/powerpc/switchcontext.S \
+@DRUNTIME_CPU_POWERPC_TRUE@				   config/powerpc64/callwithstack.S
+
+@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_TRUE@am__append_15 = config/mingw/switchcontext.S
+@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_FALSE@am__append_16 = config/x86/switchcontext.S
+@DRUNTIME_CPU_SYSTEMZ_TRUE@am__append_17 = config/systemz/get_tls_offset.S
+@DRUNTIME_CPU_S390_TRUE@am__append_18 = config/s390/get_tls_offset.S
 subdir = libdruntime
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
@@ -440,46 +441,44 @@ am__objects_21 = core/sys/solaris/dlfcn.lo core/sys/solaris/elf.lo \
 @DRUNTIME_CPU_AARCH64_TRUE@am__objects_23 = config/aarch64/libgdruntime_la-switchcontext.lo
 @DRUNTIME_CPU_ARM_TRUE@am__objects_24 = config/arm/libgdruntime_la-switchcontext.lo
 @DRUNTIME_CPU_MIPS_TRUE@am__objects_25 = config/mips/libgdruntime_la-switchcontext.lo
-@DRUNTIME_CPU_POWERPC_TRUE@am__objects_26 = config/powerpc/libgdruntime_la-switchcontext.lo
-@DRUNTIME_CPU_POWERPC64_TRUE@am__objects_27 = config/powerpc64/libgdruntime_la-callwithstack.lo
-@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_TRUE@am__objects_28 = config/mingw/libgdruntime_la-switchcontext.lo
-@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_FALSE@am__objects_29 = config/x86/libgdruntime_la-switchcontext.lo
-@DRUNTIME_CPU_SYSTEMZ_TRUE@am__objects_30 = config/systemz/libgdruntime_la-get_tls_offset.lo
-@DRUNTIME_CPU_S390_TRUE@am__objects_31 = config/s390/libgdruntime_la-get_tls_offset.lo
-am__objects_32 = $(am__objects_4) $(am__objects_6) $(am__objects_8) \
+@DRUNTIME_CPU_POWERPC_TRUE@am__objects_26 = config/powerpc/libgdruntime_la-switchcontext.lo \
+@DRUNTIME_CPU_POWERPC_TRUE@	config/powerpc64/libgdruntime_la-callwithstack.lo
+@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_TRUE@am__objects_27 = config/mingw/libgdruntime_la-switchcontext.lo
+@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_FALSE@am__objects_28 = config/x86/libgdruntime_la-switchcontext.lo
+@DRUNTIME_CPU_SYSTEMZ_TRUE@am__objects_29 = config/systemz/libgdruntime_la-get_tls_offset.lo
+@DRUNTIME_CPU_S390_TRUE@am__objects_30 = config/s390/libgdruntime_la-get_tls_offset.lo
+am__objects_31 = $(am__objects_4) $(am__objects_6) $(am__objects_8) \
 	$(am__objects_10) $(am__objects_12) $(am__objects_14) \
 	$(am__objects_16) $(am__objects_18) $(am__objects_20) \
 	$(am__objects_22) $(am__objects_23) $(am__objects_24) \
 	$(am__objects_25) $(am__objects_26) $(am__objects_27) \
-	$(am__objects_28) $(am__objects_29) $(am__objects_30) \
-	$(am__objects_31)
-am__objects_33 = gcc/config.lo gcc/libbacktrace.lo
-am__objects_34 = $(am__objects_1) $(am__objects_2) $(am__objects_32) \
-	$(am__objects_33)
-am_libgdruntime_la_OBJECTS = $(am__objects_34)
+	$(am__objects_28) $(am__objects_29) $(am__objects_30)
+am__objects_32 = gcc/config.lo gcc/libbacktrace.lo
+am__objects_33 = $(am__objects_1) $(am__objects_2) $(am__objects_31) \
+	$(am__objects_32)
+am_libgdruntime_la_OBJECTS = $(am__objects_33)
 libgdruntime_la_OBJECTS = $(am_libgdruntime_la_OBJECTS)
 am__DEPENDENCIES_2 = $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1)
-am__objects_35 = core/stdc/libgdruntime_convenience_la-errno_.lo
-@DRUNTIME_CPU_AARCH64_TRUE@am__objects_36 = config/aarch64/libgdruntime_convenience_la-switchcontext.lo
-@DRUNTIME_CPU_ARM_TRUE@am__objects_37 = config/arm/libgdruntime_convenience_la-switchcontext.lo
-@DRUNTIME_CPU_MIPS_TRUE@am__objects_38 = config/mips/libgdruntime_convenience_la-switchcontext.lo
-@DRUNTIME_CPU_POWERPC_TRUE@am__objects_39 = config/powerpc/libgdruntime_convenience_la-switchcontext.lo
-@DRUNTIME_CPU_POWERPC64_TRUE@am__objects_40 = config/powerpc64/libgdruntime_convenience_la-callwithstack.lo
-@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_TRUE@am__objects_41 = config/mingw/libgdruntime_convenience_la-switchcontext.lo
-@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_FALSE@am__objects_42 = config/x86/libgdruntime_convenience_la-switchcontext.lo
-@DRUNTIME_CPU_SYSTEMZ_TRUE@am__objects_43 = config/systemz/libgdruntime_convenience_la-get_tls_offset.lo
-@DRUNTIME_CPU_S390_TRUE@am__objects_44 = config/s390/libgdruntime_convenience_la-get_tls_offset.lo
-am__objects_45 = $(am__objects_4) $(am__objects_6) $(am__objects_8) \
+am__objects_34 = core/stdc/libgdruntime_convenience_la-errno_.lo
+@DRUNTIME_CPU_AARCH64_TRUE@am__objects_35 = config/aarch64/libgdruntime_convenience_la-switchcontext.lo
+@DRUNTIME_CPU_ARM_TRUE@am__objects_36 = config/arm/libgdruntime_convenience_la-switchcontext.lo
+@DRUNTIME_CPU_MIPS_TRUE@am__objects_37 = config/mips/libgdruntime_convenience_la-switchcontext.lo
+@DRUNTIME_CPU_POWERPC_TRUE@am__objects_38 = config/powerpc/libgdruntime_convenience_la-switchcontext.lo \
+@DRUNTIME_CPU_POWERPC_TRUE@	config/powerpc64/libgdruntime_convenience_la-callwithstack.lo
+@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_TRUE@am__objects_39 = config/mingw/libgdruntime_convenience_la-switchcontext.lo
+@DRUNTIME_CPU_X86_TRUE@@DRUNTIME_OS_MINGW_FALSE@am__objects_40 = config/x86/libgdruntime_convenience_la-switchcontext.lo
+@DRUNTIME_CPU_SYSTEMZ_TRUE@am__objects_41 = config/systemz/libgdruntime_convenience_la-get_tls_offset.lo
+@DRUNTIME_CPU_S390_TRUE@am__objects_42 = config/s390/libgdruntime_convenience_la-get_tls_offset.lo
+am__objects_43 = $(am__objects_4) $(am__objects_6) $(am__objects_8) \
 	$(am__objects_10) $(am__objects_12) $(am__objects_14) \
 	$(am__objects_16) $(am__objects_18) $(am__objects_20) \
-	$(am__objects_22) $(am__objects_36) $(am__objects_37) \
-	$(am__objects_38) $(am__objects_39) $(am__objects_40) \
-	$(am__objects_41) $(am__objects_42) $(am__objects_43) \
-	$(am__objects_44)
-am__objects_46 = $(am__objects_1) $(am__objects_35) $(am__objects_45) \
-	$(am__objects_33)
-am__objects_47 = $(am__objects_46)
-am_libgdruntime_convenience_la_OBJECTS = $(am__objects_47)
+	$(am__objects_22) $(am__objects_35) $(am__objects_36) \
+	$(am__objects_37) $(am__objects_38) $(am__objects_39) \
+	$(am__objects_40) $(am__objects_41) $(am__objects_42)
+am__objects_44 = $(am__objects_1) $(am__objects_34) $(am__objects_43) \
+	$(am__objects_32)
+am__objects_45 = $(am__objects_44)
+am_libgdruntime_convenience_la_OBJECTS = $(am__objects_45)
 libgdruntime_convenience_la_OBJECTS =  \
 	$(am_libgdruntime_convenience_la_OBJECTS)
 AM_V_P = $(am__v_P_@AM_V@)
@@ -741,7 +740,7 @@ DRUNTIME_SOURCES_CONFIGURED = $(am__append_1) $(am__append_2) \
 	$(am__append_9) $(am__append_10) $(am__append_11) \
 	$(am__append_12) $(am__append_13) $(am__append_14) \
 	$(am__append_15) $(am__append_16) $(am__append_17) \
-	$(am__append_18) $(am__append_19)
+	$(am__append_18)
 
 # Provide __start_minfo, __stop_minfo if linker doesn't.
 @DRUNTIME_OS_MINFO_BRACKETING_FALSE@DRTSTUFF = gcc/drtbegin.o gcc/drtend.o
diff --git a/libphobos/libdruntime/config/powerpc/switchcontext.S b/libphobos/libdruntime/config/powerpc/switchcontext.S
index 5470f9c4ca3..82ee542064b 100644
--- a/libphobos/libdruntime/config/powerpc/switchcontext.S
+++ b/libphobos/libdruntime/config/powerpc/switchcontext.S
@@ -24,6 +24,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 #include "../common/threadasm.S"
 
+#if defined( __ppc__ ) || defined( __PPC__ ) || defined( __powerpc__ )
+
 /**
  * Performs a context switch.
  *
@@ -148,3 +150,5 @@ CSYM(_fiber_switchContext):
     blr
     .cfi_endproc
     .size CSYM(_fiber_switchContext),.-CSYM(_fiber_switchContext)
+
+#endif /* defined( __ppc__ ) || defined( __PPC__ ) || defined( __powerpc__ ) */
diff --git a/libphobos/libdruntime/config/powerpc64/callwithstack.S b/libphobos/libdruntime/config/powerpc64/callwithstack.S
index 4c5a31945a4..a85d9c4549d 100644
--- a/libphobos/libdruntime/config/powerpc64/callwithstack.S
+++ b/libphobos/libdruntime/config/powerpc64/callwithstack.S
@@ -24,6 +24,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 #include "../common/threadasm.S"
 
+#if defined( __PPC64__ )
+
 #if defined(_CALL_ELF) && _CALL_ELF == 2
 #define USE_ABI_2
 #define LINKAGE_SZ   32
@@ -166,3 +168,5 @@ _D4core6thread18callWithStackShellFNbMDFNbPvZvZv:
 .Lend:
     .size _D4core6thread18callWithStackShellFNbMDFNbPvZvZv, .Lend-.L._D4core6thread18callWithStackShellFNbMDFNbPvZvZv
     .cfi_endproc
+
+#endif /* defined( __PPC64__ ) */
diff --git a/libphobos/m4/druntime/cpu.m4 b/libphobos/m4/druntime/cpu.m4
index 6e88896ca66..db3a92c15fa 100644
--- a/libphobos/m4/druntime/cpu.m4
+++ b/libphobos/m4/druntime/cpu.m4
@@ -17,12 +17,9 @@ AC_DEFUN([DRUNTIME_CPU_SOURCES],
                ;;
       mips*)   druntime_target_cpu_parsed="mips"
                ;;
-      powerpc|powerpcle)
+      powerpc*)
                druntime_target_cpu_parsed="powerpc"
                ;;
-      powerpc64|powerpc64le)
-               druntime_target_cpu_parsed="powerpc64"
-               ;;
       i[[34567]]86|x86_64)
                druntime_target_cpu_parsed="x86"
                ;;
@@ -41,8 +38,6 @@ AC_DEFUN([DRUNTIME_CPU_SOURCES],
                  [test "$druntime_target_cpu_parsed" = "mips"])
   AM_CONDITIONAL([DRUNTIME_CPU_POWERPC],
                  [test "$druntime_target_cpu_parsed" = "powerpc"])
-  AM_CONDITIONAL([DRUNTIME_CPU_POWERPC64],
-                 [test "$druntime_target_cpu_parsed" = "powerpc64"])
   AM_CONDITIONAL([DRUNTIME_CPU_X86],
                  [test "$druntime_target_cpu_parsed" = "x86"])
   AM_CONDITIONAL([DRUNTIME_CPU_SYSTEMZ],
