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-rw-r--r--debian/patches/riscv-nan-formatting.diff20
1 files changed, 20 insertions, 0 deletions
diff --git a/debian/patches/riscv-nan-formatting.diff b/debian/patches/riscv-nan-formatting.diff
new file mode 100644
index 00000000..8ad9b629
--- /dev/null
+++ b/debian/patches/riscv-nan-formatting.diff
@@ -0,0 +1,20 @@
+From: Benjamin Barenblat <bbaren@google.com>
+Subject: riscv64: Disable negative NaN float ostream format checking
+Bug-Debian: https://bugs.debian.org/1059340
+
+Streaming a negative NaN float with libstdc++ on riscv64 produces an
+optimization-dependent result. Don't require that logging such a float with
+Abseil produce the same result as libstdc++ streaming.
+
+--- a/absl/log/log_format_test.cc
++++ b/absl/log/log_format_test.cc
+@@ -611,7 +611,9 @@
+ EXPECT_CALL(
+ test_sink,
+ Send(AllOf(
++#ifndef __riscv // see https://bugs.debian.org/1059340
+ TextMessage(MatchesOstream(comparison_stream)),
++#endif
+ TextMessage(AnyOf(Eq("-nan"), Eq("nan"), Eq("NaN"), Eq("-nan(ind)"))),
+ ENCODED_MESSAGE(
+ AnyOf(EqualsProto(R"pb(value { str: "-nan" })pb"),