| AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables]) |
AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables]) |
| AC_MSG_RESULT($MAYBE_UNUSED) |
AC_MSG_RESULT($MAYBE_UNUSED) |
| |
|
| |
# Try if GCC understands __thread |
| |
AC_MSG_CHECKING([whether gcc understands '__thread']) |
| |
AC_TRY_COMPILE(,[extern __thread int foo;],PER_THREAD='__thread',) |
| |
AC_DEFINE_UNQUOTED(PER_THREAD,$PER_THREAD,[storage class for thread-local variables]) |
| |
AC_MSG_RESULT($PER_THREAD) |
| |
|
| #try if m4 understands -s |
#try if m4 understands -s |
| AC_MSG_CHECKING([how to invoke m4]) |
AC_MSG_CHECKING([how to invoke m4]) |
| if m4 -s /dev/null >/dev/null 2>&1; then |
if m4 -s /dev/null >/dev/null 2>&1; then |
