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-rw-r--r--cc/tests/cxxflags.rs18
1 files changed, 18 insertions, 0 deletions
diff --git a/cc/tests/cxxflags.rs b/cc/tests/cxxflags.rs
new file mode 100644
index 0000000..26426af
--- /dev/null
+++ b/cc/tests/cxxflags.rs
@@ -0,0 +1,18 @@
+extern crate cc;
+extern crate tempdir;
+
+mod support;
+
+use std::env;
+use support::Test;
+
+/// This test is in its own module because it modifies the environment and would affect other tests
+/// when run in parallel with them.
+#[test]
+fn gnu_no_warnings_if_cxxflags() {
+ env::set_var("CXXFLAGS", "-arbitrary");
+ let test = Test::gnu();
+ test.gcc().file("foo.cpp").cpp(true).compile("foo");
+
+ test.cmd(0).must_not_have("-Wall").must_not_have("-Wextra");
+}