Index: tools/autotool.py
===================================================================
--- tools/autotool.py	(revision a3e527caff6326ee4131067de265db6b0e5d6692)
+++ tools/autotool.py	(revision 8b6aa3923668ec2fbb91e100c43265f2f32fe31c)
@@ -288,4 +288,10 @@
 		clang_target = "ppc-unknown-none"
 		helenos_target = "ppc-helenos"
+	
+	if (config['PLATFORM'] == "riscv64"):
+		target = config['PLATFORM']
+		gnu_target = "riscv64-unknown-linux-gnu"
+		clang_target = "riscv-unknown-none"
+		helenos_target = "riscv64-helenos"
 	
 	if (config['PLATFORM'] == "sparc32"):