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-rw-r--r--libstdc++-v3/configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
index 6e7fea656bc..8b528baaf97 100644
--- a/libstdc++-v3/configure.ac
+++ b/libstdc++-v3/configure.ac
@@ -114,6 +114,7 @@ GLIBCXX_ENABLE_PCH($is_hosted)
GLIBCXX_ENABLE_THREADS
GLIBCXX_ENABLE_ATOMIC_BUILTINS
GLIBCXX_ENABLE_DECIMAL_FLOAT
+GLIBCXX_ENABLE_INT128_FLOAT128
# Checks for compiler support that doesn't require linking.
GLIBCXX_CHECK_COMPILER_FEATURES