[#29] Add -D_LARGEFILE64_SOURCE to CFLAGS so it compiles on i386 as well

Motivation:

We need to add -D_LARGEFILE64_SOURCE to CFLAGS so it compiles on i386 as well.

Modifications:

Add -D_LARGEFILE64_SOURCE to CLFAGS in m4 file

Result:

Now compiles on i386 as well.

template/src/main/native-package/m4/custom.m4

@@ -47,7 +47,7 @@ AC_DEFUN([CUSTOM_M4_SETUP],
   fi
 
   dnl Update the compiler/linker flags to add APR and OpenSSL to the build path.
-  CFLAGS="$CFLAGS $TCN_OPENSSL_INC $APR_INCLUDES"
+  CFLAGS="$CFLAGS $TCN_OPENSSL_INC $APR_INCLUDES -D_LARGEFILE64_SOURCE"
   CXXFLAGS="$CXXFLAGS $TCN_OPENSSL_INC $APR_INCLUDES"
   LDFLAGS="$LDFLAGS $TCN_OPENSSL_LIBS $APR_LIBS"
   AC_SUBST(CFLAGS)