SDKs: Sketch an initial stub SDK for Linux, I believe this suffices for building
the main compiler-rt and profile modules, at least on x86.
llvm-svn: 146131
diff --git a/compiler-rt/SDKs/linux/usr/include/unistd.h b/compiler-rt/SDKs/linux/usr/include/unistd.h
new file mode 100644
index 0000000..773b081
--- /dev/null
+++ b/compiler-rt/SDKs/linux/usr/include/unistd.h
@@ -0,0 +1,26 @@
+/* ===-- unistd.h - stub SDK header for compiler-rt -------------------------===
+ *
+ * The LLVM Compiler Infrastructure
+ *
+ * This file is dual licensed under the MIT and the University of Illinois Open
+ * Source Licenses. See LICENSE.TXT for details.
+ *
+ * ===-----------------------------------------------------------------------===
+ *
+ * This is a stub SDK header file. This file is not part of the interface of
+ * this library nor an official version of the appropriate SDK header. It is
+ * intended only to stub the features of this header required by compiler-rt.
+ *
+ * ===-----------------------------------------------------------------------===
+ */
+
+#ifndef __UNISTD_H__
+#define __UNISTD_H__
+
+enum {
+ _SC_PAGESIZE = 30
+};
+
+extern long int sysconf (int __name) __attribute__ ((__nothrow__));
+
+#endif /* __UNISTD_H__ */