[PATCH 0/2] Asymptote patches

[PATCH 0/2] Asymptote patches

[Eric Bavier]

These patches add the Asymptote plotting package.  They would need to be
applied to core-updates because they change the libgc configure flags.

Eric Bavier (2):
  gnu: libgc: Enable C++ support.
  gnu: Add Asymptote.

 gnu-system.am                             |  1 +
 gnu/packages/bdw-gc.scm                   |  6 ++-
 gnu/packages/patches/asymptote-gsl2.patch | 33 ++++++++++++++++
 gnu/packages/plotutils.scm                | 66 +++++++++++++++++++++++++++++++
 4 files changed, 104 insertions(+), 2 deletions(-)
 create mode 100644 gnu/packages/patches/asymptote-gsl2.patch

-- 
2.6.3

[PATCH 1/2] gnu: libgc: Enable C++ support.

[Eric Bavier]

* gnu/packages/bdw-gc.scm (libgc-7.2, libgc)[arguments]: Add
  --enable-cplusplus to #:configure-flags.
---
 gnu/packages/bdw-gc.scm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/bdw-gc.scm b/gnu/packages/bdw-gc.scm
index 6615891..0a483ef 100644
--- a/gnu/packages/bdw-gc.scm
+++ b/gnu/packages/bdw-gc.scm
@@ -39,7 +39,9 @@
    (arguments
     ;; Make it so that we don't rely on /proc.  This is especially useful in
     ;; an initrd run before /proc is mounted.
-    '(#:configure-flags '("CPPFLAGS=-DUSE_LIBC_PRIVATES")))
+    '(#:configure-flags '("CPPFLAGS=-DUSE_LIBC_PRIVATES"
+                          ;; Install gc_cpp.h et al.
+                          "--enable-cplusplus")))
    (outputs '("out" "debug"))
    (synopsis "The Boehm-Demers-Weiser conservative garbage collector
 for C and C++")
@@ -103,4 +105,4 @@ lock-free code, experiment with thread programming paradigms, etc.")
     (inputs `(("libatomic-ops" ,libatomic-ops)))
 
     ;; 'USE_LIBC_PRIVATES' is now the default.
-    (arguments '())))
+    (arguments '(#:configure-flags '("--enable-cplusplus")))))
-- 
2.6.3

Re: [PATCH 1/2] gnu: libgc: Enable C++ support.

[Mark H Weaver]

Hi Eric,

Eric Bavier <bavier@member.fsf.org> writes:
> * gnu/packages/bdw-gc.scm (libgc-7.2, libgc)[arguments]: Add
>   --enable-cplusplus to #:configure-flags.

This will need to be done in 'core-updates', because it will require a
full rebuild.  If you want 'asymptote' before the next core-updates
cycle, we could temporarily add a 'libgc-for-c++' package.

Thoughts?

      Mark

Re: [PATCH 1/2] gnu: libgc: Enable C++ support.

[Eric Bavier]

On Sun, 27 Dec 2015 10:54:28 -0500
Mark H Weaver <mhw@netris.org> wrote:

> Hi Eric,
> 
> Eric Bavier <bavier@member.fsf.org> writes:
> > * gnu/packages/bdw-gc.scm (libgc-7.2, libgc)[arguments]: Add
> >   --enable-cplusplus to #:configure-flags.  
> 
> This will need to be done in 'core-updates', because it will require a
> full rebuild.  If you want 'asymptote' before the next core-updates
> cycle, we could temporarily add a 'libgc-for-c++' package.
> 
> Thoughts?

I don't need it really soon, so I would be fine putting both patches in
core-updates, but the 'libgc-for-c++' would be nice for others who
might like to use it.  I'll send an updated patch.

`~Eric

Re: [PATCH 1/2] gnu: libgc: Enable C++ support.

[Ludovic Courtès]

Eric Bavier <bavier@member.fsf.org> skribis:

> * gnu/packages/bdw-gc.scm (libgc-7.2, libgc)[arguments]: Add
>   --enable-cplusplus to #:configure-flags.

OK for ‘core-updates’, as Mark noted.

(You can also add libgc-for-c++ in ‘master’ if you want.)

Ludo’.

[PATCH 2/2] gnu: Add Asymptote.

[Eric Bavier]

* gnu/packages/plotutils.scm (asymptote): New variable.
* gnu/packages/patches/asymptote-gsl2.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
---
 gnu-system.am                             |  1 +
 gnu/packages/patches/asymptote-gsl2.patch | 33 ++++++++++++++++
 gnu/packages/plotutils.scm                | 66 +++++++++++++++++++++++++++++++
 3 files changed, 100 insertions(+)
 create mode 100644 gnu/packages/patches/asymptote-gsl2.patch

diff --git a/gnu-system.am b/gnu-system.am
index 3c8f402..17196c3 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -406,6 +406,7 @@ dist_patch_DATA =						\
   gnu/packages/patches/agg-am_c_prototype.patch			\
   gnu/packages/patches/alsa-lib-mips-atomic-fix.patch		\
   gnu/packages/patches/apr-skip-getservbyname-test.patch	\
+  gnu/packages/patches/asymptote-gsl2.patch			\
   gnu/packages/patches/ath9k-htc-firmware-binutils.patch	\
   gnu/packages/patches/ath9k-htc-firmware-gcc.patch		\
   gnu/packages/patches/ath9k-htc-firmware-objcopy.patch		\
diff --git a/gnu/packages/patches/asymptote-gsl2.patch b/gnu/packages/patches/asymptote-gsl2.patch
new file mode 100644
index 0000000..4f73d16
--- /dev/null
+++ b/gnu/packages/patches/asymptote-gsl2.patch
@@ -0,0 +1,33 @@
+From 71ff9e769ba5d9995b367201f0d41b7a8dedab9d Mon Sep 17 00:00:00 2001
+From: John Bowman <bowman@ualberta.ca>
+Date: Sat, 14 Nov 2015 01:25:56 -0700
+Subject: [PATCH] Support GSL 2.0.
+
+---
+ gsl.cc | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/gsl.cc b/gsl.cc
+index b500557..0f81dc6 100644
+--- a/gsl.cc
++++ b/gsl.cc
+@@ -27,6 +27,7 @@
+ #include <gsl/gsl_rng.h>
+ #include <gsl/gsl_randist.h>
+ #include <gsl/gsl_cdf.h>
++#include <gsl/gsl_version.h>
+
+ #include "opsymbols.h"
+
+@@ -1088,7 +1089,11 @@ void gen_rungsl_venv(venv &ve)
+   addGSLDOUBLE2Func<gsl_sf_ellint_F>(SYM(F));
+   addGSLDOUBLE2Func<gsl_sf_ellint_E>(SYM(E));
+   addGSLDOUBLE3Func<gsl_sf_ellint_P>(SYM(P),SYM(phi),SYM(k),SYM(n));
++#if GSL_MAJOR_VERSION >= 2
++  addGSLDOUBLE2Func<gsl_sf_ellint_D>(SYM(D),SYM(phi),SYM(k));
++#else
+   addGSLDOUBLE3Func<gsl_sf_ellint_D>(SYM(D),SYM(phi),SYM(k),SYM(n));
++#endif
+   addGSLDOUBLE2Func<gsl_sf_ellint_RC>(SYM(RC),SYM(x),SYM(y));
+   addGSLDOUBLE3Func<gsl_sf_ellint_RD>(SYM(RD),SYM(x),SYM(y),SYM(z));
+   addGSLDOUBLE3Func<gsl_sf_ellint_RF>(SYM(RF),SYM(x),SYM(y),SYM(z));
diff --git a/gnu/packages/plotutils.scm b/gnu/packages/plotutils.scm
index 6166226..5642a0b 100644
--- a/gnu/packages/plotutils.scm
+++ b/gnu/packages/plotutils.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -21,11 +22,21 @@
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
+  #:use-module (gnu packages algebra)
+  #:use-module (gnu packages bdw-gc)
   #:use-module (gnu packages xorg)
   #:use-module (gnu packages image)
+  #:use-module (gnu packages ghostscript)
   #:use-module (gnu packages guile)
+  #:use-module (gnu packages gl)
   #:use-module (gnu packages gtk)
+  #:use-module (gnu packages maths)
+  #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages readline)
+  #:use-module (gnu packages texinfo)
+  #:use-module (gnu packages texlive)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages))

@@ -156,3 +167,58 @@ just-in-time graph generation, handles date and time data nicely, and has
 basic statistical capabilities.  It allows significant user control over
 colors, styles, options and details.")
     (license license:gpl2+)))
+
+(define-public asymptote
+  (package
+    (name "asymptote")
+    (version "2.35")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://sourceforge/asymptote/"
+                                  version "/asymptote-" version ".src.tgz"))
+              (sha256
+               (base32
+                "11f28vxw0ybhvl7vxmqcdwvw7y6gz55ykw9ybgzb2px6lsvgag7z"))
+              (patches (list (search-patch "asymptote-gsl2.patch")))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("gs" ,ghostscript)              ;For tests
+       ("texinfo" ,texinfo)             ;For generating documentation
+       ("texlive" ,texlive)             ;For tests and documentation
+       ("perl" ,perl)))
+    (inputs
+     `(("fftw" ,fftw)
+       ("freeglut" ,freeglut)
+       ("gsl" ,gsl)
+       ("libgc" ,libgc)
+       ("python" ,python-2)
+       ("readline" ,readline)
+       ("zlib" ,zlib)))
+    (arguments
+     `(#:configure-flags
+       (list (string-append "--enable-gc=" (assoc-ref %build-inputs "libgc"))
+             (string-append "--with-latex="
+                            (assoc-ref %outputs "out")
+                            "/share/texmf/tex/latex")
+             (string-append "--with-context="
+                            (assoc-ref %outputs "out")
+                            "/share/texmf/tex/context/third"))
+       #:phases (modify-phases %standard-phases
+                  (add-before 'build 'patch-pdf-viewer
+                    (lambda _
+                      ;; Default to a free pdf viewer
+                      (substitute* "settings.cc"
+                        (("defaultPDFViewer=\"acroread\"")
+                         "defaultPDFViewer=\"gv\"")))))))
+    (home-page "http://asymptote.sourceforge.net")
+    (synopsis "Script-based vector graphics language")
+    (description
+     "Asymptote is a powerful descriptive vector graphics language for
+technical drawing, inspired by MetaPost but with an improved C++-like syntax.
+Asymptote provides for figures the same high-quality level of typesetting that
+LaTeX does for scientific text.")
+    ;; Most source files do not contain license statements, but the README
+    ;; contains: "All source files in the Asymptote project, unless explicitly
+    ;; noted otherwise, are released under version 3 (or later) of the GNU
+    ;; Lesser General Public License"
+    (license license:lgpl3+)))
--
2.6.3

Re: [PATCH 2/2] gnu: Add Asymptote.

[Ludovic Courtès]

Eric Bavier <bavier@member.fsf.org> skribis:

> * gnu/packages/plotutils.scm (asymptote): New variable.
> * gnu/packages/patches/asymptote-gsl2.patch: New file.
> * gnu-system.am (dist_patch_DATA): Add it.

[...]

> +    (native-inputs
> +     `(("gs" ,ghostscript)              ;For tests
> +       ("texinfo" ,texinfo)             ;For generating documentation
> +       ("texlive" ,texlive)             ;For tests and documentation

Would it be enough to depend on texlive-bin?

Alternately, could documentation be made a separate package?

Otherwise LGTM, thanks!

Ludo’.

Re: [PATCH 2/2] gnu: Add Asymptote.

[Eric Bavier]

[-- Attachment #1: Type: text/plain, Size: 1262 bytes --]

On Wed, 30 Dec 2015 17:11:08 +0100
ludo@gnu.org (Ludovic Courtès) wrote:

> Eric Bavier <bavier@member.fsf.org> skribis:
> 
> > * gnu/packages/plotutils.scm (asymptote): New variable.
> > * gnu/packages/patches/asymptote-gsl2.patch: New file.
> > * gnu-system.am (dist_patch_DATA): Add it.  
> 
> [...]
> 
> > +    (native-inputs
> > +     `(("gs" ,ghostscript)              ;For tests
> > +       ("texinfo" ,texinfo)             ;For generating documentation
> > +       ("texlive" ,texlive)             ;For tests and documentation  
> 
> Would it be enough to depend on texlive-bin?

Both tests and documentation creation depend on various .fmt and .sty
files from the texlive package, so texlive-bin would not be enough it
seems.
 
> Alternately, could documentation be made a separate package?

Do you mean "package" rather than "output"?  I had tried doing a
separate output originally. The issue is that the 'asy' binary in "out"
ends up with a reference to the "doc" output for the 'help' command in
its interactive mode.
 
> Otherwise LGTM, thanks!

Attached is an updated patch suitable for master that adds a
libgc-for-c++ since it's a semi-private package.  Is this alright, or
should it be two patches?

`~Eric

[-- Attachment #2: 0002-gnu-Add-Asymptote.patch --]
[-- Type: text/plain, Size: 7298 bytes --]

From 2faf8a6c093739c4b8980b337a6a0ed659e84ebf Mon Sep 17 00:00:00 2001
From: Eric Bavier <bavier@member.fsf.org>
Date: Sun, 20 Dec 2015 16:24:24 -0600
Subject: [PATCH 2/2] gnu: Add Asymptote.

* gnu/packages/bdw-gc.scm (libgc-for-c++): New variable.
* gnu/packages/plotutils.scm (asymptote): New variable.
* gnu/packages/patches/asymptote-gsl2.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
---
 gnu-system.am                             |  1 +
 gnu/packages/bdw-gc.scm                   |  6 +++
 gnu/packages/patches/asymptote-gsl2.patch | 33 ++++++++++++++++
 gnu/packages/plotutils.scm                | 66 +++++++++++++++++++++++++++++++
 4 files changed, 106 insertions(+)
 create mode 100644 gnu/packages/patches/asymptote-gsl2.patch

diff --git a/gnu-system.am b/gnu-system.am
index 3c8f402..17196c3 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -406,6 +406,7 @@ dist_patch_DATA =						\
   gnu/packages/patches/agg-am_c_prototype.patch			\
   gnu/packages/patches/alsa-lib-mips-atomic-fix.patch		\
   gnu/packages/patches/apr-skip-getservbyname-test.patch	\
+  gnu/packages/patches/asymptote-gsl2.patch			\
   gnu/packages/patches/ath9k-htc-firmware-binutils.patch	\
   gnu/packages/patches/ath9k-htc-firmware-gcc.patch		\
   gnu/packages/patches/ath9k-htc-firmware-objcopy.patch		\
diff --git a/gnu/packages/bdw-gc.scm b/gnu/packages/bdw-gc.scm
index 0a483ef..9079a08 100644
--- a/gnu/packages/bdw-gc.scm
+++ b/gnu/packages/bdw-gc.scm
@@ -106,3 +106,9 @@ lock-free code, experiment with thread programming paradigms, etc.")
 
     ;; 'USE_LIBC_PRIVATES' is now the default.
     (arguments '(#:configure-flags '("--enable-cplusplus")))))
+
+;;; TODO: Remove this package once libgc is updated from core-updates.
+(define-public libgc-for-c++
+  (package (inherit libgc)
+    (arguments
+     '(#:configure-flags '("--enable-cplusplus"))))) ;install gc_cpp.h et al.
diff --git a/gnu/packages/patches/asymptote-gsl2.patch b/gnu/packages/patches/asymptote-gsl2.patch
new file mode 100644
index 0000000..4f73d16
--- /dev/null
+++ b/gnu/packages/patches/asymptote-gsl2.patch
@@ -0,0 +1,33 @@
+From 71ff9e769ba5d9995b367201f0d41b7a8dedab9d Mon Sep 17 00:00:00 2001
+From: John Bowman <bowman@ualberta.ca>
+Date: Sat, 14 Nov 2015 01:25:56 -0700
+Subject: [PATCH] Support GSL 2.0.
+
+---
+ gsl.cc | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/gsl.cc b/gsl.cc
+index b500557..0f81dc6 100644
+--- a/gsl.cc
++++ b/gsl.cc
+@@ -27,6 +27,7 @@
+ #include <gsl/gsl_rng.h>
+ #include <gsl/gsl_randist.h>
+ #include <gsl/gsl_cdf.h>
++#include <gsl/gsl_version.h>
+ 
+ #include "opsymbols.h"
+ 
+@@ -1088,7 +1089,11 @@ void gen_rungsl_venv(venv &ve)
+   addGSLDOUBLE2Func<gsl_sf_ellint_F>(SYM(F));
+   addGSLDOUBLE2Func<gsl_sf_ellint_E>(SYM(E));
+   addGSLDOUBLE3Func<gsl_sf_ellint_P>(SYM(P),SYM(phi),SYM(k),SYM(n));
++#if GSL_MAJOR_VERSION >= 2
++  addGSLDOUBLE2Func<gsl_sf_ellint_D>(SYM(D),SYM(phi),SYM(k));
++#else  
+   addGSLDOUBLE3Func<gsl_sf_ellint_D>(SYM(D),SYM(phi),SYM(k),SYM(n));
++#endif  
+   addGSLDOUBLE2Func<gsl_sf_ellint_RC>(SYM(RC),SYM(x),SYM(y));
+   addGSLDOUBLE3Func<gsl_sf_ellint_RD>(SYM(RD),SYM(x),SYM(y),SYM(z));
+   addGSLDOUBLE3Func<gsl_sf_ellint_RF>(SYM(RF),SYM(x),SYM(y),SYM(z));
diff --git a/gnu/packages/plotutils.scm b/gnu/packages/plotutils.scm
index 6166226..8ea4a73 100644
--- a/gnu/packages/plotutils.scm
+++ b/gnu/packages/plotutils.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -21,11 +22,21 @@
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
+  #:use-module (gnu packages algebra)
+  #:use-module (gnu packages bdw-gc)
   #:use-module (gnu packages xorg)
   #:use-module (gnu packages image)
+  #:use-module (gnu packages ghostscript)
   #:use-module (gnu packages guile)
+  #:use-module (gnu packages gl)
   #:use-module (gnu packages gtk)
+  #:use-module (gnu packages maths)
+  #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages readline)
+  #:use-module (gnu packages texinfo)
+  #:use-module (gnu packages texlive)
   #:use-module (gnu packages compression)
   #:use-module (gnu packages))
 
@@ -156,3 +167,58 @@ just-in-time graph generation, handles date and time data nicely, and has
 basic statistical capabilities.  It allows significant user control over
 colors, styles, options and details.")
     (license license:gpl2+)))
+
+(define-public asymptote
+  (package
+    (name "asymptote")
+    (version "2.35")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://sourceforge/asymptote/"
+                                  version "/asymptote-" version ".src.tgz"))
+              (sha256
+               (base32
+                "11f28vxw0ybhvl7vxmqcdwvw7y6gz55ykw9ybgzb2px6lsvgag7z"))
+              (patches (list (search-patch "asymptote-gsl2.patch")))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("gs" ,ghostscript)              ;For tests
+       ("texinfo" ,texinfo)             ;For generating documentation
+       ("texlive" ,texlive)             ;For tests and documentation
+       ("perl" ,perl)))
+    (inputs
+     `(("fftw" ,fftw)
+       ("freeglut" ,freeglut)
+       ("gsl" ,gsl)
+       ("libgc" ,libgc-for-c++)
+       ("python" ,python-2)
+       ("readline" ,readline)
+       ("zlib" ,zlib)))
+    (arguments
+     `(#:configure-flags
+       (list (string-append "--enable-gc=" (assoc-ref %build-inputs "libgc"))
+             (string-append "--with-latex="
+                            (assoc-ref %outputs "out")
+                            "/share/texmf/tex/latex")
+             (string-append "--with-context="
+                            (assoc-ref %outputs "out")
+                            "/share/texmf/tex/context/third"))
+       #:phases (modify-phases %standard-phases
+                  (add-before 'build 'patch-pdf-viewer
+                    (lambda _
+                      ;; Default to a free pdf viewer
+                      (substitute* "settings.cc"
+                        (("defaultPDFViewer=\"acroread\"")
+                         "defaultPDFViewer=\"gv\"")))))))
+    (home-page "http://asymptote.sourceforge.net")
+    (synopsis "Script-based vector graphics language")
+    (description
+     "Asymptote is a powerful descriptive vector graphics language for
+technical drawing, inspired by MetaPost but with an improved C++-like syntax.
+Asymptote provides for figures the same high-quality level of typesetting that
+LaTeX does for scientific text.")
+    ;; Most source files do not contain license statements, but the README
+    ;; contains: "All source files in the Asymptote project, unless explicitly
+    ;; noted otherwise, are released under version 3 (or later) of the GNU
+    ;; Lesser General Public License"
+    (license license:lgpl3+)))
-- 
2.6.3

Re: [PATCH 2/2] gnu: Add Asymptote.

[Ludovic Courtès]

Eric Bavier <bavier@member.fsf.org> skribis:

> On Wed, 30 Dec 2015 17:11:08 +0100
> ludo@gnu.org (Ludovic Courtès) wrote:
>
>> Eric Bavier <bavier@member.fsf.org> skribis:
>> 
>> > * gnu/packages/plotutils.scm (asymptote): New variable.
>> > * gnu/packages/patches/asymptote-gsl2.patch: New file.
>> > * gnu-system.am (dist_patch_DATA): Add it.  
>> 
>> [...]
>> 
>> > +    (native-inputs
>> > +     `(("gs" ,ghostscript)              ;For tests
>> > +       ("texinfo" ,texinfo)             ;For generating documentation
>> > +       ("texlive" ,texlive)             ;For tests and documentation  
>> 
>> Would it be enough to depend on texlive-bin?
>
> Both tests and documentation creation depend on various .fmt and .sty
> files from the texlive package, so texlive-bin would not be enough it
> seems.

OK.

>> Alternately, could documentation be made a separate package?
>
> Do you mean "package" rather than "output"?

I was thinking of a separate package (as done for NumPy IIRC), but maybe
that’s impractical.

> I had tried doing a separate output originally. The issue is that the
> 'asy' binary in "out" ends up with a reference to the "doc" output for
> the 'help' command in its interactive mode.

OK.  Perhaps you could leave that as a comment to future readers who
will want to do the same.  :-)

The same problem arises with TeX Live itself, where ‘texdoc’ keeps a
reference to the documentation directory, preventing the addition of a
separate output.  Similarly with Perl and ‘perldoc’.  Annoying!

>> Otherwise LGTM, thanks!
>
> Attached is an updated patch suitable for master that adds a
> libgc-for-c++ since it's a semi-private package.  Is this alright, or
> should it be two patches?

That’s OK.

> From 2faf8a6c093739c4b8980b337a6a0ed659e84ebf Mon Sep 17 00:00:00 2001
> From: Eric Bavier <bavier@member.fsf.org>
> Date: Sun, 20 Dec 2015 16:24:24 -0600
> Subject: [PATCH 2/2] gnu: Add Asymptote.
>
> * gnu/packages/bdw-gc.scm (libgc-for-c++): New variable.
> * gnu/packages/plotutils.scm (asymptote): New variable.
> * gnu/packages/patches/asymptote-gsl2.patch: New file.
> * gnu-system.am (dist_patch_DATA): Add it.

[...]

> +;;; TODO: Remove this package once libgc is updated from core-updates.
> +(define-public libgc-for-c++
> +  (package (inherit libgc)

Please change the ‘name’ field to, say, “libgc-cxx”, so that UIs don’t
show two different “libgc” packages.

Otherwise LGTM, thanks!

Ludo’.