Added what programs are needed for compilation to the INSTALL file.

git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@230 7894878c-1315-0410-8ee3-d5d059ff63e0

INSTALL

@@ -11,7 +11,20 @@ COMPILATION AND INSTALLATION
 
 Basic installation is uncomplicated. Run 'make all', followed by an optional
 'make install'. Everything is compiled using the Makefile in the root of
-this package. Some interesting variables:
+this package. 
+
+You need flex and bison (reportedly a version newer than 1.22). You must
+also make sure you have all kernel headers installed properly, including
+the ones created during the kernel compilation. Some of the additional
+programs in the prog/ subdirectory need Perl and GAWK to run, but you
+don't need them to use this package. And you need a fully working compilation
+environment, of course; the program should compile against both libc5
+and glibc2. Like always, we recommend gcc-2.7.2.3 as the compiler for
+kernel modules, but 2.8.1 and any non-buggy egcs version will very
+probably work too. The modules in this package should work with any 2.0,
+2.1 or 2.2 kernel.
+
+Some interesting Makefile variables:
 
 * SMP
   This must be set to 1 if your kernel was compiled with SMP set to 1. There
@@ -69,6 +82,9 @@ with). If the tree and the running kernel do not match, you will either
 be unable to insert the modules at all, or you can expect strange 
 behaviour (probably leading to crashes).
 
+If you do a 'make install', remember to do a 'depmod -a' and a 'ldconfig'
+to make sure the new modules and shared libraries are recognized.
+
 
 TESTING AND RUNNING
 ===================