+ AC_CHECK_PROGS(ISAINFO, [isainfo], [no])
+ AS_IF([test "x$ISAINFO" != "xno"],
+ [isainfo_b=`${ISAINFO} -b`],
+ [isainfo_b="x"])
+
+ AS_IF([test "$isainfo_b" != "x"],
+ [AC_ARG_ENABLE([64bit],
+ [AS_HELP_STRING([--disable-64bit],
+ [Build 64 bit binary @<:@default=on@:>@])],
+ [ac_enable_64bit="$enableval"],
+ [ac_enable_64bit="yes"])])
+
+ AS_IF([test "x$ac_enable_64bit" = "xyes"],[
+ if test "x$libdir" = "x\${exec_prefix}/lib" ; then
+ # The user hasn't overridden the default libdir, so we'll
+ # the dir suffix to match solaris 32/64-bit policy
+ isainfo_k=`${ISAINFO} -k`
+ libdir="${libdir}/${isainfo_k}"
+ fi
+ CFLAGS="-m64 $CFLAGS"
+ CXXFLAGS="-m64 $CXXFLAGS"
+ if test "$target_cpu" = "sparc" -a "x$SUNCC" = "xyes"
+ then
+ CFLAGS="-xmemalign=8s $CFLAGS"
+ CXXFLAGS="-xmemalign=8s $CXXFLAGS"
+ fi
+ ])
+])