compilation.md

+# Compilation #
+
+After downloading or updating you must have the `lmgc90_user` directory somewhere. Inside, you should have the following
+subdirectories:
+ * *src* : the sources of LMGC90 software
+ * *examples* : the user examples working with the sources
+ * *manuals* : a list of manuals/documentation for the software in pdf format
+ * *docs* : the html documentation generated from the sources
+
+The first step of the *compilation* is only to create an other subdirectory there callde `build`.
+
+Then depending on your operating system follow the directions:
+* [Unix/MacOs] (#compile)
+* [Windows] (#precompiled)
+
+## <a name=compile> Unix and MacOs </a> ##
+
+You must a set of commands from the terminal to build LMGC90 software for your system.
+Thus open a terminal and go to your `lmgc90_user/build` directory.
+
+Run the following commands:
+```shell
+cmake ..
+make
+```
+
+Instead of simply running `cmake`, you can run `ccmake` or `cmake-gui` to help change some
+configuration parameters. For examples people interested only in rigid computation can change
+the configuration to:
+```shell
+cmake . -DMATLIB_VERSION=none -DSPARSE_LIBRARY=none
+make
+```
+
+If you want to re-build the documentation run:
+```shell
+make docs
+```
+It will build the sphinx documentation in:
+ * docs/chipy/
+ * docs/dev/
+ * docs/Pre/
+But the one provided shoud be up-to-date
+
+
+## <a name=precompiled> Windows </a> ##
+
+For Windows operating systems, a pre-compiled version is provided. Depending on the version of Anaconda you downloaded
+(from [here](https://git-xen.lmgc.univ-montp2.fr/lmgc90/lmgc90_user/wikis/win_dependencies_install))
+choose the corresponding binaries of LMGC90:
+* [32 bits](https://mycore.core-cloud.net/public.php?service=files&t=9bb2e3561373c64a4855596873aa98bd)
+* [64 bits](https://mycore.core-cloud.net/public.php?service=files&t=9525fc1c270aaddf7e8eae96214f4b49)
+
+Then unzip the downloaded in the `lmgc90_user/build` directory. It should create a `pylmgc90-xxxx-py27` (where `xxxx`
+is to replaced by `i686` or `x86_64` depending on the downloaded version).