diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..befe9d8
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,25 @@
+Openlibm is licensed under the three clause "Modified BSD License",
+with exceptions noted below:
+
+     Redistribution and use in source and binary forms, with or without
+     modification, are permitted provided that the following conditions are met:
+
+         * Redistributions of source code must retain the above copyright
+           notice, this list of conditions and the following disclaimer.
+         * Redistributions in binary form must reproduce the above copyright
+	   notice, this list of conditions and the following disclaimer in the
+           documentation and/or other materials provided with the distribution.
+         * The names of the contributors may not be used to endorse or promote
+           products derived from this software without specific prior written
+           permission.
+
+     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+     DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+     BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+     LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+     NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.