[PD] Linking externals on windows with mingw32

[Christof Ressi]

sorry, "/c/pdbinpath/pd.dll" is unix style (I use a msys2 shell). What I meant is: absolute path to pd.dll.

> Gesendet: Donnerstag, 25. Mai 2017 um 13:13 Uhr
> Von: "Christof Ressi" <christof.ressi at gmx.at>
> An: "Jamie Bullock" <jamie at postlude.co.uk>, pd-list <pd-list at iem.at>
> Betreff: Re: [PD] Linking externals on windows with mingw32
>
> Hi, could be a problem with your linker flags. Try these:
> 
> gcc -static-libgcc -shared -Wl,--enable-auto-import "/c/pdbinpath/pd.dll" -o foo.dll foo.o
> 
> I basically took the linker flags from pdlibbuilder. I generally recommend this tool for building externals because it's cross platform and really convenient. 
> 
> https://github.com/pure-data/pd-lib-builder/blob/master/Makefile.pdlibbuilder
> 
> Christof
>  
> 
> Gesendet: Donnerstag, 25. Mai 2017 um 11:48 Uhr
> Von: "Jamie Bullock" <jamie at postlude.co.uk>
> An: Pd-list at lists.iem.at
> Betreff: [PD] Linking externals on windows with mingw32
> 
>  
> Hi list,
>  
> I'm trying to compile externals on Windows 10 using mingw32 toolchain. Pd version 0.47.1
>  
> I always get link errors related to Pd's global symbols being undefined, e.g.
>  
>     undefined reference to `_imp__s_bang'
>     undefined reference to `_imp__s_list'
>  
> etc
>  
> My linker flags are:  
>  
>    gcc  -shared -Wl,--enable-auto-import -o test.dll -L.../pd/bin -lpd
>  
> I get a similar issue linking externals built with Flext. Linkage seems to work fine except for these symbols.
>  
> Any ideas?
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