allow setting directory locations in a native file

This allows the person running configure (either a developer, user, or
distro maintainer) to keep a configuration of where various kinds of
files should end up.

1 files changed, 17 insertions, 0 deletions

diff --git a/docs/markdown/Native-environments.md b/docs/markdown/Native-environments.md
index a9719a7..f0d41eb 100644
--- a/docs/markdown/Native-environments.md
+++ b/docs/markdown/Native-environments.md
@@ -43,6 +43,23 @@ rust = '/usr/local/bin/rust'
 llvm-config = '/usr/local/llvm-svn/bin/llvm-config'
 ```
 
+### Paths and Directories
+
+As of 0.50.0 paths and directories such as libdir can be defined in the native
+file in a paths section
+
+```ini
+[paths]
+libdir = 'mylibdir'
+prefix = '/my prefix'
+```
+
+These values will only be loaded when not cross compiling. Any arguments on the
+command line will override any options in the native file. For example, passing
+`--libdir=otherlibdir` would result in a prefix of `/my prefix` and a libdir of
+`otherlibdir`.
+
+
 ## Loading multiple native files
 
 Unlike cross file, native files allow layering. More than one native file can be