Dear sage-devel,
In my sage spkg, I have a cython file in which I use sig_check(). For that
I need to add the following line at the top of the file:
include "sage/ext/interrupt.pxi" # ctrl-c interrupt block support
For cythonizing, I need to provide appropriate include libraries in the
setup.py file. It seems that this is not necessary for cython files in the
sage library, because I haven't seen anything special in the module_list.py
of sage for files using sig_check(). After looking at how sagemanifolds
handle its setup.py file, the only way I found to build my spkg without
error is to use
sage: sage.env.sage_include_directories()
['SAGE_HOME/local/include',
'SAGE_HOME/local/include/python2.7',
'SAGE_HOME/local/lib/python2.7/site-packages/numpy/core/include',
'SAGE_HOME/local/lib/python2.7/site-packages',
'SAGE_HOME/local/lib/python2.7/site-packages/sage/ext']
in the following way:
Extension('slabbe.mult_cont_frac',
sources = [os.path.join('slabbe','mult_cont_frac.pyx')],
include_dirs=sage.env.sage_include_directories())
But this gives me the following warning:
slabbe/mult_cont_frac.o
slabbe/mult_cont_frac.c:1861:0: warning: "_signals" redefined
#define _signals (*__pyx_vp_4sage_3ext_9interrupt_9interrupt__signals)
^
In file included from
/Users/slabbe/Applications/sage-review/local/lib/python2.7/site-packages/sage/ext/interrupt/pxi.h:7:0,
from slabbe/mult_cont_frac.c:248:
/Users/slabbe/Applications/sage-review/local/lib/python2.7/site-packages/sage/ext/interrupt/interrupt_api.h:16:0:
note: this is the location of the previous definition
#define _signals (*__pyx_api_vp_4sage_3ext_9interrupt_9interrupt__signals)
^
slabbe/mult_cont_frac.c:1862:15: warning:
'__pyx_f_4sage_3ext_9interrupt_9interrupt_print_backtrace' defined but not
used [-Wunused-variable]
static void
(*__pyx_f_4sage_3ext_9interrupt_9interrupt_print_backtrace)(void); /*proto*/
^
slabbe/mult_cont_frac.c:1863:15: warning:
'__pyx_f_4sage_3ext_9interrupt_9interrupt__sig_on_interrupt_received'
defined but not used [-Wunused-variable]
static void
(*__pyx_f_4sage_3ext_9interrupt_9interrupt__sig_on_interrupt_received)(void);
/*proto*/
^
slabbe/mult_cont_frac.c:1864:15: warning:
'__pyx_f_4sage_3ext_9interrupt_9interrupt__sig_on_recover' defined but not
used [-Wunused-variable]
static void
(*__pyx_f_4sage_3ext_9interrupt_9interrupt__sig_on_recover)(void); /*proto*/
^
slabbe/mult_cont_frac.c:1865:15: warning:
'__pyx_f_4sage_3ext_9interrupt_9interrupt__sig_off_warning' defined but not
used [-Wunused-variable]
static void
(*__pyx_f_4sage_3ext_9interrupt_9interrupt__sig_off_warning)(char const *,
int); /*proto*/
^
What should be the appropriate value for include_dirs?
Thanks for your help,
Sébastien
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