id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1758	Boost 1.35 fails to build under gcc 3.4 unix Solaris	jgottman@…	Peter Dimov	"When I tried to build the boost libraries under gcc 3.4 unix Solaris, I repeatedly got an error message that looked like


{{{
/var/tmp//ccdt31Ke.s: Assembler messages:
/var/tmp//ccdt31Ke.s:619: Error: Architecture mismatch on ""cas"".
/var/tmp//ccdt31Ke.s:619:  (Requires v9|v9a|v9b; requested architecture is v8.)
}}}


I traced the problem to the following lines in <detail\sp_counted_base.hpp>:

{{{
#elif defined(__GNUC__) && ( defined( __sparcv8 ) || defined( __sparcv9 ) )

# include <boost/detail/sp_counted_base_gcc_sparc.hpp>
}}}

which call the following command:

{{{
    __asm__ __volatile__( ""cas %0, %2, %1""
                        : ""+m"" (*dest_), ""+r"" (swap_)
                        : ""r"" (compare_)
                        : ""memory"" );
}}}

It looks like __sparcv8 is not sufficient to call this command, only __sparcv9 is.  Note also the <detail/sp_counted_base_solaris.hpp> is apparantly never included.

Joe Gottman  "	Patches	closed	Boost 1.37.0	smart_ptr	Boost 1.35.0	Showstopper	fixed