On Sun, Nov 29, 2015 at 11:09 PM, Ludovic Courtès <l...@gnu.org> wrote:
> Federico Beffa <be...@ieee.org> skribis:
>
>> On Mon, Nov 16, 2015 at 1:57 PM, Ludovic Courtès <l...@gnu.org> wrote:
>>> Federico Beffa <be...@ieee.org> skribis:
>>>> Yes, given that the back-end currently used by matploblib doesn't
>>>> work, I would change that by using 'Tkinter'.
>>>>
>>>> Since you are at it, I would also change the default back-end by
>>>> changing 'GTK3Agg' to 'TkAgg' in the following snippet:
>>>>
>>>> (lambda (port)
>>>> (format port "[rc_options]~%
>>>> backend = GTK3Agg~%")))))
>>>
>>> OTOH I see that Matploblib already depends on GTK+ 3.x and
>>> python-pygobject, so maybe it’s best to stick to GTK+ by default?
>>
>> Unfortunately, the back-ends based on GTK+ are broken and I didn't
>> manage to find how to fix the problem.
>> http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20888
>>
>> That's why I'm looking forward to get Tkinter :-)
>
> Could you or someone else test this patch on current master?
It does not work. It can't find the tcl/tk header files:
...
tkagg: no [The C/C++ header for Tk (tk.h) could not be
found. You may need to install the development
package.]
...
With the attached patch it does find the headers, but then it fails at
link time.
...
g++ -pthread -shared
-Wl,-rpath=/gnu/store/cxrqlhbr6xqgi08x3amd0lvl6m7sxx57-python-3.4.3/lib
build/temp.linux-x86_64-3.4/src/agg_py_transforms.o
build/temp.linux-x86_64-3.4/src/_tkagg.o
build/temp.linux-x86_64-3.4/extern/agg24/src/agg_bezier_arc.o
build/temp.linux-x86_64-3.4/extern/agg24/src/agg_curves.o
build/temp.linux-x86_64-3.4/extern/agg24/src/agg_image_filters.o
build/temp.linux-x86_64-3.4/extern/agg24/src/agg_trans_affine.o
build/temp.linux-x86_64-3.4/extern/agg24/src/agg_vcgen_contour.o
build/temp.linux-x86_64-3.4/extern/agg24/src/agg_vcgen_dash.o
build/temp.linux-x86_64-3.4/extern/agg24/src/agg_vcgen_stroke.o
build/temp.linux-x86_64-3.4/extern/agg24/src/agg_vpgen_segmentator.o
build/temp.linux-x86_64-3.4/extern/CXX/IndirectPythonInterface.o
build/temp.linux-x86_64-3.4/extern/CXX/cxxsupport.o
build/temp.linux-x86_64-3.4/extern/CXX/cxx_extensions.o
build/temp.linux-x86_64-3.4/extern/CXX/cxxextensions.o
-L/gnu/store/ipsq9hlk6k0w1qfiw0y0a03bxkp2clhl-tcl-8.6.4/lib
-L/gnu/store/my9wgryzpfvksng6k7h87xz9rphdwddw-tk-8.6.4/lib
-L/usr/local/lib -L/usr/local/lib
-L/gnu/store/cxrqlhbr6xqgi08x3amd0lvl6m7sxx57-python-3.4.3/lib -ltcl
-ltk -lstdc++ -lm -lpython3.4m -o
build/lib.linux-x86_64-3.4/matplotlib/backends/_tkagg.cpython-34m.so
ld: cannot find -ltcl
ld: cannot find -ltk
collect2: error: ld returned 1 exit status
error: command 'g++' failed with exit status 1
phase `build' failed after 94.8 seconds
...
Looking into the failed build directory, it seems that PKG_CONFIG_PATH
is set correctly. Still, it doesn't get the correct flags.
Regards,
Fede
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 39d0751..4dfe557 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -3190,6 +3190,7 @@ transcendental functions).")
`(("python-pyparsing" ,python-pyparsing)
("python-pygobject" ,python-pygobject)
("gobject-introspection" ,gobject-introspection)
+ ("python-tkinter" ,python "tk")
;; The 'gtk+' package (and 'gdk-pixbuf', 'atk' and 'pango' propagated
;; from 'gtk+') provides the required 'typelib' files used by
;; 'gobject-introspection'. The location of these files is set with the
@@ -3224,7 +3225,8 @@ transcendental functions).")
;; FIXME: Add backends when available.
;("python-wxpython" ,python-wxpython)
;("python-pyqt" ,python-pyqt)
- ))
+ ("tcl" ,tcl)
+ ("tk" ,tk)))
(native-inputs
`(("pkg-config" ,pkg-config)
("texlive" ,texlive)
@@ -3243,8 +3245,13 @@ transcendental functions).")
(setenv "HOME" (getcwd))
(call-with-output-file "setup.cfg"
(lambda (port)
- (format port "[rc_options]~%
-backend = GTK3Agg~%")))))
+ (format port "[directories]~%
+basedirlist = ~a,~a~%
+~%
+[rc_options]~%
+backend = TkAgg~%"
+ (assoc-ref inputs "tcl")
+ (assoc-ref inputs "tk"))))))
(alist-cons-after
'install 'install-doc
(lambda* (#:key outputs #:allow-other-keys)
