5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local

@@ -509,12 +509,10 @@
 LINTERROFF      += -erroff=E_NAME_MULTIPLY_DEF2
 LINTFLAGS       += $(LINTERROFF)
 LINTFLAGS64     += $(LINTERROFF)
 LINTFLAGS64     += -errchk=longptr64
 
-CPPFLAGS        += -DLIBM_BUILD
-
 CFLAGS          += $(C_BIGPICFLAGS)
 CFLAGS64        += $(C_BIGPICFLAGS)
 
 m9x_IL          = $(LIBMDIR)/common/m9x/__fenv_$(TARGET_ARCH).il