3 files changed, 24 insertions, 0 deletions
diff --git a/build/has/_Fork.c b/build/has/_Fork.c
new file mode 100644
index 0000000..4d7fbd3
--- /dev/null
+++ b/build/has/_Fork.c
@@ -0,0 +1,8 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <unistd.h>
+
+int main(void) {
+	return _Fork();
+}
diff --git a/build/has/builtin-riscv-pause.c b/build/has/builtin-riscv-pause.c
new file mode 100644
index 0000000..24b0675
--- /dev/null
+++ b/build/has/builtin-riscv-pause.c
@@ -0,0 +1,7 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+int main(void) {
+	__builtin_riscv_pause();
+	return 0;
+}
diff --git a/build/has/tcgetwinsize.c b/build/has/tcgetwinsize.c
new file mode 100644
index 0000000..d25d12b
--- /dev/null
+++ b/build/has/tcgetwinsize.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+#include <termios.h>
+
+int main(void) {
+	struct winsize ws;
+	return tcgetwinsize(0, &ws);
+}