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-rw-r--r--platform/linuxbsd/detect.py7
1 files changed, 7 insertions, 0 deletions
diff --git a/platform/linuxbsd/detect.py b/platform/linuxbsd/detect.py
index 1b9dd1e8f3..4b3804d049 100644
--- a/platform/linuxbsd/detect.py
+++ b/platform/linuxbsd/detect.py
@@ -119,6 +119,13 @@ def configure(env):
if env["bits"] == "default":
env["bits"] = "64" if is64 else "32"
+ if env["arch"] == "" and platform.machine() == "riscv64":
+ env["arch"] = "rv64"
+
+ if env["arch"] == "rv64":
+ # G = General-purpose extensions, C = Compression extension (very common).
+ env.Append(CCFLAGS=["-march=rv64gc"])
+
## Compiler configuration
if "CXX" in env and "clang" in os.path.basename(env["CXX"]):