Update readme: ia64 and alpha support

[urcu.git] / README

diff --git a/README b/README
index a2ca1eb147a7318845ac0da336ff40ba5ba86f22..1cd3ed954fbd780e83fab12a6fe85f960e84ae95 100644 (file)
--- a/README
+++ b/README
@@ -28,6 +28,9 @@ Currently, x86 (i386, i486, i586, i686), x86 64-bit, PowerPC 32/64, S390, S390x
 and Sparcv9 32/64 are supported. Only tested on Linux so far, but should
 theoretically work on other operating systems.
 
+Alpha and ia64 architectures are supported, but depend on 4.x gcc with atomic
+builtins support.
+
 QUICK START GUIDE
 -----------------
 
@@ -71,7 +74,8 @@ Usage of liburcu-mb
 
 Usage of liburcu-signal
 
-       * #include <urcu-signal.h>
+       * #include <urcu.h>
+       * Compile any _LGPL_SOURCE code using this library with "-DRCU_SIGNAL".
        * Link the application with "-lurcu-signal".
        * Version of the library that requires a signal, typically SIGUSR1. Can
          be overridden with -DSIGRCU by modifying Makefile.build.inc.