on 10/20/07 2:12 AM, Bob Delaney at [EMAIL PROTECTED] wrote:
> I am trying to use GMP rather than NTL for my Extended Plugin, but am
> having problems.
>
> Right now I am using a packaged version of GMP 4.1.4 on my G4 iMac .
> The make install (with --enable-cxx) of the latest 4.2.2 version
> works fine on my G4 iMac. The compile of 4.2.2 on my Intel iMac
> passes all the make check tests, but the static libraries are
> unusable. Since the suitable packaged version of GMP 4.1.4 works fine
> on my Intel imac, that's what I'm going with now.
>
> I'm using Xcode 4.2.1 on my G4. And I'm using the libgmpxx libraries
> which provide a C++ wrapper. Building a C++ tool using GMP has given
> no problems. For example, here is a simple program:
>
> #include <iostream>
> #include <gmpxx.h>
> #include <string>
>
> using namespace std;
>
> int main (int argc, char * const argv[])
> {
> mpz_class x;
> string xString;
>
> x = 1234;
>
> xString = x.get_str(10); // the 10 means base=10. This calls the
> function get_str of the mpz_class, the GMP integer class
>
> cout << xString.c_str() << endl;
> cout << x << endl;
>
> return 0;
> }
>
>
> When built and run the Terminal output is:
> 1234
> 1234
> as expected.
>
> One problem arises when I choose Xcode's REALbasic Mach-O plugin. In
> the interface file to REALbasic, the use of the GMP get_str function
> gives a link error:
>
> ld: Undefined symbols:
> ___gmp_get_memory_functions
> /Users/bob/Documents/ProgrammingCocoa/Extended2 Plugin/build/
> Extended2 Plugin.build/Development/Extended2 Plugin.build/Objects-
> normal/ppc/Extended2 Plugin.o reference to undefined
> ___gmp_get_memory_functions
> /usr/bin/libtool: internal link edit command failed
>
> Linking works when I remove the get_str line.
>
> Why do I have a link problem with the plugin, considering there is no
> link problem with get_str with a command line program?
Somewhere in the simple C++ project you have to be linking in the GMP
library or it is included via some kind of defaulting. If it is the former
then you need to add the same setting to the plug-in project. If it is the
latter I would look for a setting that is turned off in the plug-in project.
Chris
_______________________________________________
Unsubscribe or switch delivery mode:
<http://www.realsoftware.com/support/listmanager/>
Search the archives:
<http://support.realsoftware.com/listarchives/lists.html>
