pnacl's newlib code contains function that can/should not be called

newlib-trunk/newlib/libm/math/Makefile.am

 ## Process this file with automake to generate Makefile.in
 
 AUTOMAKE_OPTIONS = cygnus
 
 INCLUDES = -I$(srcdir)/../common $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
 
 src =   k_standard.c k_rem_pio2.c \
         k_cos.c k_sin.c k_tan.c \
         e_acos.c e_acosh.c e_asin.c e_atan2.c \
         e_atanh.c e_cosh.c e_exp.c e_fmod.c \
         er_gamma.c e_hypot.c e_j0.c \
         e_j1.c e_jn.c er_lgamma.c \
         e_log.c e_log10.c e_pow.c e_rem_pio2.c e_remainder.c \
         e_scalb.c e_sinh.c e_sqrt.c \
         w_acos.c w_acosh.c w_asin.c w_atan2.c \
         w_atanh.c w_cosh.c w_exp.c w_fmod.c \
         w_gamma.c wr_gamma.c w_hypot.c w_j0.c \
         w_j1.c w_jn.c w_lgamma.c wr_lgamma.c \
         w_log.c w_log10.c w_pow.c w_remainder.c \
-        w_scalb.c w_sinh.c w_sqrt.c \
+        w_scalb.c w_sinh.c \
         w_sincos.c \
         w_cabs.c w_drem.c \
         s_asinh.c s_atan.c s_ceil.c \
         s_cos.c s_erf.c s_fabs.c s_floor.c \
         s_frexp.c s_ldexp.c \
         s_signif.c s_sin.c \
         s_tan.c s_tanh.c \
         w_exp2.c w_tgamma.c
 
+#@LOCALMOD
+# NOTE: these are already overwritten in newlib/libm/machine/pnacl/
+src_pnacl_eliminated = w_sqrt.c 
+
 fsrc =  kf_rem_pio2.c \
         kf_cos.c kf_sin.c kf_tan.c \
         ef_acos.c ef_acosh.c ef_asin.c ef_atan2.c \
         ef_atanh.c ef_cosh.c ef_exp.c ef_fmod.c \
         erf_gamma.c ef_hypot.c ef_j0.c \
         ef_j1.c ef_jn.c erf_lgamma.c \
         ef_log.c ef_log10.c ef_pow.c ef_rem_pio2.c ef_remainder.c \
         ef_scalb.c ef_sinh.c ef_sqrt.c \
         wf_acos.c wf_acosh.c wf_asin.c wf_atan2.c \
         wf_atanh.c wf_cosh.c wf_exp.c wf_fmod.c \
         wf_gamma.c wrf_gamma.c wf_hypot.c wf_j0.c \
         wf_j1.c wf_jn.c wf_lgamma.c wrf_lgamma.c \
         wf_log.c wf_log10.c wf_pow.c wf_remainder.c \
-        wf_scalb.c wf_sinh.c wf_sqrt.c \
+        wf_scalb.c wf_sinh.c \
         wf_sincos.c \
         wf_cabs.c wf_drem.c \
         sf_asinh.c sf_atan.c sf_ceil.c \
         sf_cos.c sf_erf.c sf_fabs.c sf_floor.c \
         sf_frexp.c sf_ldexp.c \
         sf_signif.c sf_sin.c \
         sf_tan.c sf_tanh.c \
         wf_exp2.c wf_tgamma.c
 
+#@LOCALMOD
+# NOTE: these are already overwritten in newlib/libm/machine/pnacl/
+fsrc_pnacl_eliminated = wf_sqrt.c 
+
 libmath_la_LDFLAGS = -Xcompiler -nostdlib
 
 if USE_LIBTOOL
 noinst_LTLIBRARIES = libmath.la
 libmath_la_SOURCES = $(src) $(fsrc)
 noinst_DATA = objectlist.awk.in
 else
 noinst_LIBRARIES = lib.a
 lib_a_SOURCES = $(src) $(fsrc)
 lib_a_CFLAGS = $(AM_CFLAGS)
@@ skipping 22 matching lines @@
 TARGETDOC = ../tmp.texi
 
 doc: $(chobj)
         cat $(srcdir)/math.tex >> $(TARGETDOC)
 
 CLEANFILES = $(chobj) *.ref
 
 # A partial dependency list.
 
 $(lib_a_OBJECTS): $(srcdir)/../../libc/include/math.h $(srcdir)/../common/fdlibm.h