--- a/src/libFLAC/Makefile.in
+++ b/src/libFLAC/Makefile.in
@@ -66,6 +66,7 @@ NORMAL_UNINSTALL = :
 PRE_UNINSTALL = :
 POST_UNINSTALL = :
 host_triplet = @host@
+@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_FALSE@@FLaC__USE_ALTIVEC_TRUE@am__append_1 = -maltivec -mabi=altivec
 ACLOCAL = @ACLOCAL@
 ACLOCAL_AMFLAGS = @ACLOCAL_AMFLAGS@
 AMDEP_FALSE = @AMDEP_FALSE@
@@ -234,13 +235,21 @@ target_alias = @target_alias@
 
 lib_LTLIBRARIES = libFLAC.la
 @DEBUG_TRUE@DEBUGCFLAGS = -DFLAC__OVERFLOW_DETECT
+# Linux-gcc for PPC does not have -force_cpusubtype_ALL, it is Darwin-specific
+#@@@ PPC optimizations temporarily disabled
+@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_FALSE@CPUCFLAGS =  \
+@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_FALSE@	$(am__append_1) \
+@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_FALSE@	-DFLAC__NO_ASM
+
+# FIXME: The following logic should be part of configure, not of Makefile.am
+
 # The -force_cpusubtype_ALL is needed to insert a ppc64 instruction
 # into cpu.c with an asm().
 #@@@ PPC optimizations temporarily disabled
-@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_TRUE@CPUCFLAGS = -faltivec -force_cpusubtype_ALL -DFLAC__NO_ASM
-# Linux-gcc for PPC does not have -force_cpusubtype_ALL, it is Darwin-specific
-#@@@ PPC optimizations temporarily disabled
-@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_FALSE@CPUCFLAGS = -maltivec -mabi=altivec -DFLAC__NO_ASM
+@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_TRUE@CPUCFLAGS = -faltivec \
+@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_TRUE@	-force_cpusubtype_ALL \
+@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_TRUE@	-DFLAC__NO_ASM \
+@FLaC__CPU_PPC_TRUE@@FLaC__SYS_DARWIN_TRUE@	$(am__append_1)
 
 AM_CFLAGS = $(DEBUGCFLAGS) $(CPUCFLAGS) @OGG_CFLAGS@
 @FLaC__CPU_PPC_TRUE@@FLaC__NO_ASM_FALSE@ARCH_SUBDIRS = ppc
--- a/src/libFLAC/Makefile.am
+++ b/src/libFLAC/Makefile.am
@@ -32,6 +32,9 @@ lib_LTLIBRARIES = libFLAC.la
 if DEBUG
 DEBUGCFLAGS = -DFLAC__OVERFLOW_DETECT
 endif
+
+# FIXME: The following logic should be part of configure, not of Makefile.am
+
 if FLaC__CPU_PPC
 # The -force_cpusubtype_ALL is needed to insert a ppc64 instruction
 # into cpu.c with an asm().
@@ -40,8 +43,12 @@ if FLaC__SYS_DARWIN
 CPUCFLAGS = -faltivec -force_cpusubtype_ALL -DFLAC__NO_ASM
 else
 # Linux-gcc for PPC does not have -force_cpusubtype_ALL, it is Darwin-specific
+CPUCFLAGS =
+if FLaC__USE_ALTIVEC
+CPUCFLAGS += -maltivec -mabi=altivec
+endif
 #@@@ PPC optimizations temporarily disabled
-CPUCFLAGS = -maltivec -mabi=altivec -DFLAC__NO_ASM
+CPUCFLAGS += -DFLAC__NO_ASM
 endif
 endif