[GiNaC-list] cannot compile cpp code that uses GiNaC on Mac OS 10.15.7 (Catalina)

[Di Gi]

Hello Vladimir,

thank you for the prompt answer. I implemented the patch, but now I get a different error, this time from the linker. The output is attached.

Best,
Diego


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> On 20 Dec 2020, at 15:25, Vladimir V. Kisil <V.Kisil at leeds.ac.uk> wrote:
> 
> 	Hello, Diego,
> 
> 	The problem is with the new lst container initialisation. I am
>  attaching a patch to this code. With this patch I am able to compile
>  the code with your command 
> 
> g++ -std=c++11 GPLs.cpp -o GPLs.out -w -lcln -lginac
> 
>  on my Debian box.
> 
>  Best wishes,
>  Vladimir
> -- 
> Vladimir V. Kisil                 http://www.maths.leeds.ac.uk/~kisilv/
>  Book:      Geometry of Mobius Maps       https://doi.org/10.1142/p835
>  Soft:      Geometry of cycles         http://moebinv.sourceforge.net/
>  Jupyter notebooks:       https://github.com/vvkisil/MoebInv-notebooks
>>>>>> On Sun, 20 Dec 2020 14:12:11 +0000, Di Gi <dgo.gaz at gmail.com> said:
> 
>    Di> Hello,
> 
>    Di> I'm trying to compile cpp code that depends on GiNaC. The code
>    Di> is in this file:
> 
>    Di> https://arxiv.org/src/1912.09099v1/anc/GPLs.cpp
> 
>    Di> and I tried compiling it with the following command:
> 
>    Di> g++ -std=c++11 GPLs.cpp -o GPLs.out -w -lcln -lginac
> 
>    Di> I tried several alternatives for the -std option, but c++11 is
>    Di> the one producing the smallest amount of errors.
> 
>    Di> The output I get is in the attached GPLs.log file.
> 
>    Di> My OS is Mac OS Catalina (10.15.7). My compiler options are as
>    Di> follows:
> 
>    Di> Configured with:
>    Di> --prefix=/Applications/Xcode.app/Contents/Developer/usr
>    Di> --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/c++/4.2.1
>    Di> Apple clang version 12.0.0 (clang-1200.0.32.21) Target:
>    Di> x86_64-apple-darwin19.6.0 Thread model: posix InstalledDir:
>    Di> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
> 
>    Di> I get the very same errors if I use the GNU compiler, but I
>    Di> understand that, under Mac, g++ = gcc = clang.
> 
>    Di> I installed GiNaC through homebrew, and this is the version I
>    Di> have:
> 
>    Di> ginac: stable 1.8.0 (bottled) Not a Computer algebra system
>    Di> https://www.ginac.de/ /usr/local/Cellar/ginac/1.8.0 (66 files,
>    Di> 8.9MB) * Poured from bottle on 2020-12-19 at 16:28:49 From:
>    Di> https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/ginac.rb
>    Di> License: GPL-2.0 ==> Dependencies Build: pkg-config ? Required:
>    Di> cln ?, python at 3.9 ?, readline ?
> 
>    Di> I had also tried to install GiNaC as well as CLN from git, but I
>    Di> get similar errors.
> 
>    Di> I inspected GiNaC's lst header (the constructor producing the
>    Di> errors) but I cannot find anything wrong with it.
> 
>    Di> Any help is greatly appreciated.
> 
>    Di> Beste Gr??e, Diego
> 
> <patch.diff>