[bug#27344] [PATCH v2 08/12] gnu: Add ngspice.

[Danny Milosavljevic]

My current version of your patch is below.

After it, the following duplicates remain:
* ./bin/cmpp
* ./lib/ngspice/analog.cm
* ./lib/ngspice/digital.cm
* ./lib/ngspice/spice2poly.cm
* ./lib/ngspice/xtradev.cm
* ./lib/ngspice/xtraevt.cm
* ./share/ngspice/dlmain.c
* ./share/ngspice/scripts/setplot
* ./share/ngspice/scripts/spectrum
* ./share/ngspice/scripts/spinit

Also, how can other programs find libngspice?  There's no pkg-config file and 
also no replacement (a la gtk-config) that I can see.

cmpp seems to be a preprocessor for xspice extensions - should it be part of 
ngspice or libngspice ? Is libngspice useful without cmpp being there ?

diff --git a/gnu/packages/engineering.scm b/gnu/packages/engineering.scm
index 650ac2b89..2687b5758 100644
--- a/gnu/packages/engineering.scm
+++ b/gnu/packages/engineering.scm
@@ -59,6 +59,7 @@
   #:use-module (gnu packages linux)               ;FIXME: for pcb
   #:use-module (gnu packages m4)
   #:use-module (gnu packages maths)
+  #:use-module (gnu packages mpi)
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
@@ -1013,3 +1014,87 @@ specified in high-level description language into 
ready-to-compile C code for
 the API of spice simulators.  Based on transformations specified in XML
 language, ADMS transforms Verilog-AMS code into other target languages.")
     (license license:gpl3)))
+
+(define-public libngspice
+  (package
+    (name "libngspice")
+    (version "26")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append 
"mirror://sourceforge/ngspice/ng-spice-rework/"
+                                  version "/ngspice-" version ".tar.gz"))
+              (sha256
+               (base32
+                "02019ndcl057nq9z41nxycqba7wxlb081ibvfj9jv010nz431qji"))
+              (modules '((guix build utils)))
+              ;; We remove the non-free cider and build without it.
+              (snippet
+               '(begin
+                  (delete-file-recursively "src/ciderlib")
+                  (delete-file "src/ciderinit")
+                  (substitute* "configure"
+                    (("src/ciderlib/Makefile") "")
+                    (("src/ciderlib/input/Makefile") "")
+                    (("src/ciderlib/support/Makefile") "")
+                    (("src/ciderlib/oned/Makefile") "")
+                    (("src/ciderlib/twod/Makefile") ""))))))
+    (build-system gnu-build-system)
+    (arguments
+     `(;; No tests for libngspice exist.
+       ;; The transient tests for ngspice fail.
+       #:tests? #f
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'patch-timestamps
+           (lambda _
+             (substitute* "configure"
+               (("`date`") "Do 1. Jan 00:00:00 UTC 1970"))
+             #t))
+         (add-after 'unpack 'delete-program-manuals
+           (lambda _
+             (substitute* "man/man1/Makefile.in"
+               (("^man_MANS = ngspice\\.1 ngnutmeg\\.1 ngsconvert\\.1 
ngmultidec\\.1")
+                "man_MANS = "))
+             #t)))
+       #:configure-flags
+       (list "--enable-openmp"
+             "--enable-xspice"
+             "--with-ngshared"
+             "--with-readline=yes")))
+    (native-inputs
+     `(("bison" ,bison)
+       ("flex" ,flex)))
+    (inputs
+     `(("libxaw" ,libxaw)
+       ("mpi" ,openmpi)
+       ("readline" ,readline)))
+    (home-page "http://ngspice.sourceforge.net/";)
+    (synopsis "Mixed-level/mixed-signal circuit simulator")
+    (description
+     "Ngspice is a mixed-level/mixed-signal circuit simulator.  It includes
address@hidden, a circuit simulator, and @code{Xspice}, an extension that
+provides code modeling support and simulation of digital components through
+an embedded event driven algorithm.")
+    (license (list license:lgpl2.0+ ; code in frontend/numparam
+                   (license:non-copyleft "file:///COPYING") ; spice3 bsd-style
+                   license:public-domain)))) ; xspice
+
+(define-public ngspice
+  (package (inherit libngspice)
+    (name "ngspice")
+    (arguments
+     (substitute-keyword-arguments (package-arguments libngspice)
+       ((#:configure-flags flags)
+        `(delete "--with-ngshared" ,flags))
+       ((#:phases phases)
+        `(modify-phases ,phases
+          (add-after 'unpack 'delete-include-files
+            (lambda _
+              (substitute* "src/Makefile.in"
+                (("^SUBDIRS = misc maths frontend spicelib include/ngspice")
+                 "SUBDIRS = misc maths frontend spicelib"))
+              #t))
+          (delete 'delete-program-manuals)))))
+    (inputs
+     `(("libngspice" ,libngspice)
+       ("readline" ,readline)))))