K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2020-06-05T18:37:04.721646Z
K 7
svn:log
V 436
skein_block_asm.S: use #ifdef not .ifdef, for Clang IAS

Clang IAS does not support the --defsym argument, and

.ifndef SKEIN_USE_ASM

gets turned into

.ifndef 1792

by the preprocessor, which results in

error: expected identifier after '.ifdef'
.ifndef 1792
        ^

Use #ifdef instead, which still works with GNU as.

Reviewed by:	cem
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25154

END