> I noticed the Makefile has a line (
> http://github.com/weidai11/cryptopp/blob/master/GNUmakefile#L146):
>
> ifneq ($(IS_SUN),0)
> CXXFLAGS += -Wa,--divide # allow use of "/" operator
> endif
>
> That is a GNU Assembler option. It seems that block has not been executed
> in some time, including 5.6.2 and earlier:
>
> $ git checkout CRYPTOPP_5_6_2
> $ make -j 2
> g++ -DNDEBUG -g -O2 -pipe -c cryptlib
> ...
>
> My question is, should this be fixed?
>
Let me be the first to answer that :)
Yes, its needed on Solaris (and maybe others):
$ g++ -DNDEBUG -g2 -O2 -fPIC -Wa,--divide -pipe -c integer.cpp
$
And without:
$ g++ -DNDEBUG -g2 -O2 -fPIC -pipe -c integer.cpp
{standard input}: Assembler messages:
{standard input}:6405: Error: unbalanced brackets in operand 2.
{standard input}:6406: Error: unbalanced brackets in operand 2.
{standard input}:6407: Error: unbalanced brackets in operand 2.
{standard input}:6408: Error: unbalanced brackets in operand 2.
...
And those {standard input} lines:
$ cat -n <S file> | grep "6405"
6405 LMul16:movdqa xmm1, [esi+16/2*(1-(16-2*(16/2))*2)*16];
Jeff
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