build: Feature-detect #pragma nounroll support

1 files changed, 10 insertions, 0 deletions

diff --git a/build/has/pragma-nounroll.c b/build/has/pragma-nounroll.c
new file mode 100644
index 0000000..2bdae14
--- /dev/null
+++ b/build/has/pragma-nounroll.c
@@ -0,0 +1,10 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+/// -Werror
+
+int main(void) {
+#pragma nounroll
+	for (int i = 0; i < 100; ++i);
+	return 0;
+}