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-rw-r--r--libbutl/buildfile5
1 files changed, 5 insertions, 0 deletions
diff --git a/libbutl/buildfile b/libbutl/buildfile
index 499800c..a7b20f3 100644
--- a/libbutl/buildfile
+++ b/libbutl/buildfile
@@ -16,6 +16,11 @@ windows = ($tclass == 'windows')
# Whether to use our own implementation of C++14 threads on MinGW (note:
# requires Windows 7 or later).
#
+# Note that for now we use built-in POSIX thread support during bootstrap
+# (which, as a side effect, verifies we still use MinGW GCC configured with
+# POSIX support, which we still need for TLS, exceptions, and thread-safe
+# static locals).
+#
mingw_stdthread = ($tsys == 'mingw32')
# Exclude these from compilation on targets where does not apply.