diff --git a/arch/powerpc/math-emu/Makefile b/arch/powerpc/math-emu/Makefile
index 754143e..29bc912 100644
--- a/arch/powerpc/math-emu/Makefile
+++ b/arch/powerpc/math-emu/Makefile
@@ -11,3 +11,6 @@
 					mcrfs.o mffs.o mtfsb0.o mtfsb1.o \
 					mtfsf.o mtfsfi.o stfiwx.o stfs.o \
 					udivmodti4.o
+
+CFLAGS_fabs.o = -fno-builtin-fabs
+CFLAGS_math.o = -fno-builtin-fabs