I went a little further with my almost blind attempts...
On 25 Oct 2006, at 14:43, Franco Vaccari wrote:
In the end I've got the plugin working. But a couple of
improvements are needed, and I'm here for some help...
a) the text file is created in / while typically it has to appear
in a user-specified path. In a previously tried strategy I simply
compiled the fortran code with g77/g95, put the executable in the
app/Contents/MacOS folder and call it from RB using the shell
class. In such a way the output file was created in the folder
currently used by the user, but if I moved my app to another
machine I had to recompile the fortran code there (probably because
of different configuration), while I'd like to have my app running
on whatever Mac, possibly without the developer tools installed
there, and I thought that maybe a plugin would be the best way to
go...
I can easily change to the fortran part from
subroutine hello()
to
subroutine hello(path,lenPath)
character*512 path
integer lenPath
and use the path wherever needed for I/O operations in other program
units by passing path and lenPath in a common. The f2c translated
method definition changes from
static int hello()
to
static int hello(char *path, integer *lenpath, ftnlen path_len)
where ftnlen is either a short or a long integer defined in the f2c.h
header. How to modify the original
{ (REALproc) hello, REALnoImplementation, "hello() as Integer" },
to handle the new definition and how to call from RB? I tried
{ (REALproc) hello, REALnoImplementation, "hello(path as string,
lenpath as integer, path_len as integer) as Integer" },
and in RB
result=hello("~/",512,2")
The plugin compiled, but upon run the app went mad upon the method
call... If I could pass this step I could probably stop disturbing
for a while (hope so at least...:-)
b) I have f2c installed by fink, and it is not UB. Can I create the
PPC plugin on a PPC Mac, the Intel plugin on an Intel Mac, and
somehow put the two outcomes together before running RB Plugin
Converter on any of the two platforms) to obtain a UB plugin?
It looks like the RB Plugin Converter can do this easily, will try
later at home, point b) probably solved
c) how to add win32 compatibility to the plugin?
Again, putting the pieces together with RB Plugin Converter will do
it. So the true question is: how to prepare the dylib under Windows?
Thanks again
Franco
--------------------
Franco Vaccari
Trieste - Italy
--------------------
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