Chris,
That pointed me in the right direction. In Project Settings
"Prebinding" was unchecked for the simple C++ project, but checked
for the plugin. When I unchecked it the linking was successful.
Thanks very much.
Bob
On Oct 20, 2007, at 4:02 PM, Chris Little wrote:
> 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
>
>
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