matplotlib-devel Mailing List for matplotlib

> Todd, perhaps instead of a
> platform based typedef we need some tk version macro or something
> since he's also bumping into this on linux. May be time for a google
> :-)
I think I hacked around this in a way not likely to break: rather than
fixing the signature of PyAggImagePhoto, I changed the call to
Tcl_CreateCommand to cast PyAggImagePhoto to the right thing. I am
hopeful, but not certain, that this will work and saves us the trouble
of identifying at what version of Tcl/Tk this change occured. I think
this hack is OK because the interface being changed looks so critical
that I'm surprised they even tweaked it. I already committed it after
testing it on Linux (not really enough, I know). I'll try Windows later
today.
Regards,
Todd
> 
> Gary, it's an easy fix for you. Search src/_tkagg.cpp for this
> section of the code (around line 32)
> 
> #ifdef WIN32
> #define argv_t const char
> #else
> #define argv_t char
> #endif
> 
> and just delete it all and replace it with
> 
> #define argv_t const char
> 
> Let us know how it goes from there.
> 
> JDH
> 
> 
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-- 
Todd Miller <jm...@st...>

>>>>> "Gary" == Gary <pa...@in...> writes:
 Gary> I'm trying to build from cvs. It builds fine unless I try
 Gary> I'm on Mandrake 10.0 which uses gcc 3.3.2 I apologize if
 Gary> I've made some obvious omission. I'm no c wizard (that's
 Gary> why I want matplotlib!).
There are apparently 2 versions of tk headers out there, some which
use char** and some which use const char** in this function. We've
already seen platform differences on win32, apple and linux which
we're trying to typedef appropriately. Todd, perhaps instead of a
platform based typedef we need some tk version macro or something
since he's also bumping into this on linux. May be time for a google
:-)
Gary, it's an easy fix for you. Search src/_tkagg.cpp for this
section of the code (around line 32)
#ifdef WIN32
#define argv_t const char
#else
#define argv_t char
#endif
and just delete it all and replace it with
#define argv_t const char
Let us know how it goes from there.
JDH

I'm trying to build from cvs. It builds fine unless I try to build TkAgg:
------------------------
building 'matplotlib.backends._tkagg' extension
gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -fomit-frame-pointer -pipe 
-march=i586 -mcpu=pentiumpro -g -fPIC -I/usr/lib/tcl8.4/../../include 
-I/usr/include -Isrc -Iagg2/include -I/usr/include -I/usr/include/freetype2 
-I/usr/include/python2.3 -c src/_tkagg.cpp -o 
build/temp.linux-i686-2.3/src/_tkagg.o
src/_tkagg.cpp: In function `PyObject* _tkinit(PyObject*, PyObject*)':
src/_tkagg.cpp:134: error: invalid conversion from `int (*)(void*, 
Tcl_Interp*, int, char**)' to `int (*)(void*, Tcl_Interp*, int, const 
char**)'
error: command 'gcc' failed with exit status 1
-------------------------
I'm on Mandrake 10.0 which uses gcc 3.3.2
I apologize if I've made some obvious omission.
I'm no c wizard (that's why I want matplotlib!).
-gary