INSTALL.Linux: Document use of "sparse" with Open vSwitch.

Signed-off-by: Ben Pfaff <blp@nicira.com>

diff --git a/INSTALL.Linux b/INSTALL.Linux
index 0d3c31025a7e54466e6d5f3bdadfbd5671f5ad8b..78152b6940f7a6a5b04847d014b38a7c6352d121 100644 (file)
--- a/INSTALL.Linux
+++ b/INSTALL.Linux
@@ -100,6 +100,14 @@ you have the following:
 
     - Python 2.x, for x >= 4.
 
 
     - Python 2.x, for x >= 4.
 

+If you are going to extensively modify Open vSwitch, please consider
+installing the following to obtain better warnings:
+
+    - "sparse" version 0.4.4 or later
+      (http://www.kernel.org/pub/software/devel/sparse/dist/).
+
+    - GNU make.
+

 Installation Requirements
 -------------------------
 
 Installation Requirements
 -------------------------
 


@@ -187,6 +195,9 @@ Prerequisites section, follow the procedure below to build.
 
       % make
 
 
       % make
 

+   For improved warnings if you installed "sparse" (see
+   "Prerequisites"), add C=1 to the "make" command line.
+

 4. Become root by running "su" or another program.
 
 5. Run "make install" to install the executables and manpages into the
 4. Become root by running "su" or another program.
 
 5. Run "make install" to install the executables and manpages into the