- There's no more need for the snprintf macro. - Move the inclusion of malloc.h until after all other includes, so we   can do proper tests of system macros. - Make sure the correct header file is included to get the builtin   "alloca" under VMS, and define a macro to map the symbol 'alloca' to   it.
- There's no more need for the snprintf macro.
- Move the inclusion of malloc.h until after all other includes, so we
  can do proper tests of system macros.
- Make sure the correct header file is included to get the builtin
  "alloca" under VMS, and define a macro to map the symbol 'alloca' to
  it.

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl