Re: [PATCH v2 3/6] gnu: fpga: Add iverilog.

[Thompson, David]

diff --git a/gnu/packages/fpga.scm b/gnu/packages/fpga.scm
index 7571f87..b0d4819 100644
--- a/gnu/packages/fpga.scm
+++ b/gnu/packages/fpga.scm
@@ -81,3 +81,30 @@ and formal verification.")
     ;; FIXME use license: MIT Modern variant as described in:
     ;;   <https://fedoraproject.org/wiki/Licensing:MIT>
     (license license:expat))))
+
+(define-public iverilog
+  (package
+    (name "iverilog")
+    (version "10.1.1")
+    (source (origin
+              (method url-fetch)
+              (uri
+               (string-append
"ftp://ftp.icarus.com/pub/eda/verilog/v10/verilog-"; version
".tar.gz"))
+              (sha256
+                (base32
+                   "1nnassxvq30rnn0r2p85rkb2zwxk97p109y13x3vr365wzgpbapx"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("flex" ,flex)
+       ("bison" ,bison)
+       ("ghostscript" ,ghostscript) #| ps2pdf |#))

A minor nit, but we don't really use that form of comments, so I would
change it to this:

   ("ghostscript" ,ghostscript))) ; ps2pdf

+    (home-page "http://iverilog.icarus.com/";)
+    (synopsis "FPGA Verilog Simulation and Synthesis Tool")
+    (description "Icarus Verilog is a Verilog simulation and synthesis tool.
+It operates as a compiler, compiling source code written in Verilog
+(IEEE-1364) into some target format.
+For batch simulation, the compiler can generate an intermediate form called
+vvp assembly.
+This intermediate form is executed by the ``vvp'' command.
+For synthesis, the compiler generates netlists in the desired format.")
+    (license license:gpl2)))

Is it really GPL2 only?

LGTM otherwise, thanks!

- Dave