diff options
Diffstat (limited to 'HOWTO')
| -rw-r--r-- | HOWTO/INSTALL-CROSS.md | 9 | ||||
| -rw-r--r-- | HOWTO/INSTALL.md | 14 |
2 files changed, 15 insertions, 8 deletions
diff --git a/HOWTO/INSTALL-CROSS.md b/HOWTO/INSTALL-CROSS.md index fbcb5f83c6..a5cf775583 100644 --- a/HOWTO/INSTALL-CROSS.md +++ b/HOWTO/INSTALL-CROSS.md @@ -4,14 +4,7 @@ Cross Compiling Erlang/OTP Introduction ------------ -This document describes how to cross compile Erlang/OTP-%OTP-REL%. Note that -the support for cross compiling Erlang/OTP should be considered as -experimental. As far as we know, the %OTP-REL% release should cross compile -fine, but since we currently have a very limited set of cross compilation -environments to test with we cannot be sure. The cross compilation support -will remain in an experimental state until we get a lot more cross compilation -environments to test with. - +This document describes how to cross compile Erlang/OTP-%OTP-REL%. You are advised to read the whole document before attempting to cross compile Erlang/OTP. However, before reading this document, you should read the [$ERL_TOP/HOWTO/INSTALL.md][] document which describes building and installing diff --git a/HOWTO/INSTALL.md b/HOWTO/INSTALL.md index 8051bc4393..5bde47e1f6 100644 --- a/HOWTO/INSTALL.md +++ b/HOWTO/INSTALL.md @@ -288,6 +288,20 @@ Some of the available `configure` options are: implementation available, you typically want to try using the `libatomic_ops` library. It can be downloaded from <http://www.hpl.hp.com/research/linux/atomic_ops/>. +* `--disable-smp-require-native-atomics` - By default `configure` will + fail if an SMP runtime system is about to be built, and no implementation + for native atomic memory accesses can be found. If this happens, you are + encouraged to find a native atomic implementation that can be used, e.g., + using `libatomic_ops`, but by passing `--disable-smp-require-native-atomics` + you can build using a fallback implementation based on mutexes or spinlocks. + Performance of the SMP runtime system will however suffer immensely without + an implementation for native atomic memory accesses. +* `--without-$app` - By default all applications in Erlang/OTP will be included + in a release. If this is not wanted it is possible to specify that Erlang/OTP + should be compiled without that applications, i.e. `--without-wx`. There is + no automatic dependency handling inbetween applications. So if you disable + an application that another depends on, you also have to disable the + dependant application. If you or your system has special requirements please read the `Makefile` for additional configuration information. |