Merge branch 'maint'

* maint:
  Add test cases for native atomics and jump table
  Refuse to build SMP runtime by default without native atomics
  Make information about use of jump table available via system_info BIF
  Make ethread library information available via system_info BIF
  Make emulator arguments available via the system_info BIF

1 files changed, 8 insertions, 0 deletions

diff --git a/HOWTO/INSTALL.md b/HOWTO/INSTALL.md
index 8051bc4393..fa1b9d2e89 100644
--- a/HOWTO/INSTALL.md
+++ b/HOWTO/INSTALL.md
@@ -288,6 +288,14 @@ Some of the available `configure` options are:
     implementation available, you typically want to try using the
     `libatomic_ops` library. It can be downloaded from
     <http://www.hpl.hp.com/research/linux/atomic_ops/>.
+*   `--disable-smp-require-native-atomics` - By default `configure` will
+    fail if an SMP runtime system is about to be built, and no implementation
+    for native atomic memory accesses can be found. If this happens, you are
+    encouraged to find a native atomic implementation that can be used, e.g.,
+    using `libatomic_ops`, but by passing `--disable-smp-require-native-atomics`
+    you can build using a fallback implementation based on mutexes or spinlocks.
+    Performance of the SMP runtime system will however suffer immensely without
+    an implementation for native atomic memory accesses.
 
 If you or your system has special requirements please read the `Makefile` for
 additional configuration information.