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-rw-r--r--platform/windows/detect.py8
1 files changed, 8 insertions, 0 deletions
diff --git a/platform/windows/detect.py b/platform/windows/detect.py
index e6e1874fc0..52a959b34a 100644
--- a/platform/windows/detect.py
+++ b/platform/windows/detect.py
@@ -448,6 +448,9 @@ def configure_msvc(env, vcvars_msvc_config):
## LTO
+ if env["lto"] == "auto": # No LTO by default for MSVC, doesn't help.
+ env["lto"] = "none"
+
if env["lto"] != "none":
if env["lto"] == "thin":
print("ThinLTO is only compatible with LLVM, use `use_llvm=yes` or `lto=full`.")
@@ -564,6 +567,11 @@ def configure_mingw(env):
if try_cmd("gcc-ranlib --version", env["mingw_prefix"], env["arch"]):
env["RANLIB"] = mingw_bin_prefix + "gcc-ranlib"
+ ## LTO
+
+ if env["lto"] == "auto": # Full LTO for production with MinGW.
+ env["lto"] = "full"
+
if env["lto"] != "none":
if env["lto"] == "thin":
if not env["use_llvm"]: