Thank you so much for your help. I could handle it.

Thanks,
Raphael

Can you try using C_EXTRA_FLAGS instead of CFLAGS when configuring wolfSSL embedded SSL? 

A while back we switched reading additional flags in from the user from CFLAGS to C_EXTRA_FLAGS to avoid conflicts with modifications we have made to the ./configure system.

Thanks,
Chris

I already used wolfssl 2-2-2 in mips64 n32. Sometime there is problem that infinite loop occurred in doing SSL_connect.
before attaching to ssl object , I set RCVTIME in socket descriptor.

frame #1 to #2 #1 to #2 ... 

#0  0x1007e58c in DoApplicationData ()
#1  0x1007faac in ProcessReply ()
#2  0x10069ba4 in wolfSSL_connect ()

I spent much time to try to resolve it , but there is no issue. that's why I want to upgrade to latest one.
but wolfssl supported mips64 but don't do n32(mabi=n32)

below are message in make

....
CC       tests/tests_unit-hash.o
  CC       examples/client/tests_unit-client.o
  CC       examples/server/tests_unit-server.o
  CCLD     src/libcyassl.la
collect2: ld terminated with signal 11 [Segmentation fault], core dumped
/usr/local/Cavium_Networks/OCTEON-SDK/tools-gcc-4.1/bin/../lib/gcc/mips64-octeon-linux-gnu/4.1.2/../../../../mips64-octeon-linux-gnu/bin/ld: src/.libs/src_libcyassl_la-internal.o: ABI is incompatible with that of the selected emulation
/usr/local/Cavium_Networks/OCTEON-SDK/tools-gcc-4.1/bin/../lib/gcc/mips64-octeon-linux-gnu/4.1.2/../../../../mips64-octeon-linux-gnu/bin/ld: failed to merge target specific data of file src/.libs/src_libcyassl_la-internal.o
/usr/local/Cavium_Networks/OCTEON-SDK/tools-gcc-4.1/bin/../lib/gcc/mips64-octeon-linux-gnu/4.1.2/../../../../mips64-octeon-linux-gnu/bin/ld: src/.libs/src_libcyassl_la-io.o: ABI is incompatible with that of the selected emulation
...

below are my build options.
./configure --host=mips64-octeon-linux-gnu --enable-static --host=mips64-octeon-linux-gnu CC=mips64-octeon-linux-gnu-gcc CFLAGS="-mabi=n32" LDFLAGS="-mabi=n32" ac_cv_func_malloc_0_nonnull=yes ac_cv_func_realloc_0_nonnull=yes

Let me know about handing this situation.

thank you for reading