Try to clean the maze of <openssl/bn.h> defines regarding the BN internals.

The intent of this change is to only keep support for two kind of architectures:
- those with 32-bit int and long, and 64-bit long long, where
  ``long * long -> long long'' multiplication routines are available.
- those with 64-bit int and long, and no 128-bit long long type.

This gets rid of the SIXTY_FOUR_BIT_LONG, SIXTY_FOUR_BIT (not the same!),
THIRTY_TWO_BIT, SIXTEEN_BIT and EIGHT_BIT defines.

After this change, the types and defines are as follows:

arch:           64bit           32bit           rationale
BN_LLONG        undefined       defined         defined if l * l -> ll
BN_ULLONG       undefined       u long long     result of BN_LONG * BN_LONG
BN_ULONG        u long          u int           native register size
BN_LONG         long            int             the same, signed
BN_BITS         128             64              size of 2*BN_ULONG in bits
BN_BYTES        8               4               size of 2*BN_ULONG in bytes
BN_BITS2        64              32              BN_BITS / 2

Tested on various 32-bit and 64-bit OpenBSD systems of various endianness.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libssl/src/apps/genrsa.c b/src/lib/libssl/src/apps/genrsa.c
index 68e939ca99..c658828299 100644
--- a/src/lib/libssl/src/apps/genrsa.c
+++ b/src/lib/libssl/src/apps/genrsa.c
@@ -256,7 +256,7 @@ bad:
          */
         l = 0L;
         for (i = 0; i < rsa->e->top; i++) {
-#ifndef SIXTY_FOUR_BIT
+#ifndef _LP64
                 l <<= BN_BITS4;
                 l <<= BN_BITS4;
 #endif