Clarify licenses used

Switch links to SPDX site, and be more detailed.

1 files changed, 8 insertions, 4 deletions

diff --git a/index.mdwn b/index.mdwn
index 18b5727..a20a50f 100644
--- a/index.mdwn
+++ b/index.mdwn
@@ -9,10 +9,14 @@ over again on each project.
 
 The licenses for the code contained in libbsd are quite permissive to make
 it easier for other projects to use it. Most of the licenses are either
-[New BSD](https://en.wikipedia.org/wiki/BSD_licenses),
-[MIT style](https://en.wikipedia.org/wiki/Mit_license) or
-[ISC](https://en.wikipedia.org/wiki/ISC_License), check the source
-code for the actual license details.
+[ISC](https://spdx.org/licenses/ISC.html),
+[MIT](https://spdx.org/licenses/MIT.html),
+[Beerware](https://spdx.org/licenses/Beerware.html),
+[BSD-2-clause](https://spdx.org/licenses/BSD-2-Clause.html),
+[BSD-3-clause](https://spdx.org/licenses/BSD-3-Clause.html), and
+[BSD-4-clause](https://spdx.org/licenses/BSD-3-Clause.html) (but only
+for few of the man pages, and this is considered a bug). Please check
+the the COPYING file and the source code for the actual license details.
 
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