#11686: Race condition in matplotlib mkdir()
------------------------------+---------------------------------------------
Reporter: jdemeyer | Owner: tbd
Type: defect | Status: needs_work
Priority: minor | Milestone: sage-4.7.2
Component: packages | Keywords:
Work_issues: | Upstream: N/A
Reviewer: Leif Leonhardy | Author: John Palmieri
Merged: | Dependencies:
------------------------------+---------------------------------------------
Changes (by jdemeyer):
* status: positive_review => needs_work
Comment:
This fails on the buildbot machine `iras`:
{{{
Warning: Attempted to overwrite SAGE_ROOT environment variable
matplotlib-1.0.1.p0
Machine:
Linux iras 2.6.16.46-0.12-default #1 SMP Thu May 17 14:00:09 UTC 2007 ia64
ia64 ia64 GNU/Linux
[...]
============================================================================
BUILDING MATPLOTLIB
matplotlib: 1.0.1
python: 2.6.4 (r264:75706, Aug 16 2011, 18:26:56) [GCC
4.6.1]
platform: linux2
REQUIRED DEPENDENCIES
numpy: 1.5.1
freetype2: found, but unknown version (no pkg-config)
OPTIONAL BACKEND DEPENDENCIES
libpng: found, but unknown version (no pkg-config)
Gtk+: no
* Building for Gtk+ requires pygtk; you must be
able
* to "import gtk" in your build/install
environment
Qt: no
Qt4: no
Cairo: no
OPTIONAL DATE/TIMEZONE DEPENDENCIES
datetime: present, version unknown
dateutil: matplotlib will provide
pytz: matplotlib will provide
adding pytz
OPTIONAL USETEX DEPENDENCIES
dvipng: no
ghostscript: 8.15.3
latex: no
[...]
building 'matplotlib._png' extension
gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -O3 -Wall -Wstrict-prototypes
-fPIC -DPY_ARRAY_UNIQUE_SYMBOL=MPL_ARRAY_API -DPYCXX_ISO_CPP_LIB=1
-I/home/buildbot/build/sage/iras-1/iras_full/build/sage-4.7.2.alpha1/local/include
-I.
-I/home/buildbot/build/sage/iras-1/iras_full/build/sage-4.7.2.alpha1/local/lib/python2.6
/site-packages/numpy/core/include -I.
-I/home/buildbot/build/sage/iras-1/iras_full/build/sage-4.7.2.alpha1/local/include/python2.6
-c src/_png.cpp -o build/temp.linux-ia64-2.6/src/_png.o
cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for
Ada/C/ObjC but not for C++ [enabled by default]
src/_png.cpp: In function ‘void init_png()’:
src/_png.cpp:485:25: warning: variable ‘_png’ set but not used [-Wunused-
but-set-variable]
g++ -pthread -shared build/temp.linux-ia64-2.6/src/_png.o build/temp
.linux-ia64-2.6/src/mplutils.o build/temp.linux-ia64-2.6/CXX/cxxsupport.o
build/temp.linux-ia64-2.6/CXX/cxx_extensions.o build/temp.linux-
ia64-2.6/CXX/IndirectPythonInterface.o build/temp.linux-
ia64-2.6/CXX/cxxextensions.o
-L/home/buildbot/build/sage/iras-1/iras_full/build/sage-4.7.2.alpha1/local/lib
-L/home/buildbot/build/sage/iras-1/iras_full/build/sage-4.7.2.alpha1/local/lib
-lpng -lz -lstdc++ -lm -lpython2.6 -o build/lib.linux-
ia64-2.6/matplotlib/_png.so
/usr/local/binutils-2.21/ia64-Linux-suse-gcc-4.5.1/bin/ld: cannot find
-lpng
collect2: ld returned 1 exit status
error: command 'g++' failed with exit status 1
Error building matplotlib package.
}}}
Full log:
[http://build.sagemath.org/sage/builders/SUSE%20ES10-64%20%28iras%29/builds/161/steps/shell_1/logs/matplotlib/text]
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11686#comment:37>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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