configure: Add --enable-compiler-atomic-builtins option

[urcu.git] / README.md

diff --git a/README.md b/README.md
index a9f1688f5d2e1bcbd1dd577bc83f14261bc1c45f..d7966a2c54dbbad4eaf92a5e01b8d99abd7e6451 100644 (file)
--- a/README.md
+++ b/README.md
@@ -440,6 +440,10 @@ still being used to iterate on a hash table.
 This option alters the rculfhash ABI. Make sure to compile both library
 and application with matching configuration.
 
+### Usage of `--enable-compiler-atomic-builtins`
+
+Building liburcu with `--enable-compiler-atomic-builtins` implements the uatomic
+API with the compiler atomic builtins if supported.
 
 Make targets
 ------------