1 files changed, 7 insertions, 0 deletions

diff --git a/libbb/Config.src b/libbb/Config.src
index c80bee286..708d3b0c8 100644
--- a/libbb/Config.src
+++ b/libbb/Config.src
@@ -63,6 +63,13 @@ config SHA1_SMALL
         1               224  229           654   732
         2,3             200  195           358   380
 
+config SHA1_HWACCEL
+        bool "SHA1: Use hardware accelerated instructions if possible"
+        default y
+        help
+        On x86, this adds ~590 bytes of code. Throughput
+        is about twice as fast as fully-unrolled generic code.
+
 config SHA3_SMALL
         int "SHA3: Trade bytes for speed (0:fast, 1:slow)"
         default 1  # all "fast or small" options default to small