Hi Greg,
I am not sure I understand exactly what you are trying to achieve (and I have
only briefly looked at your explanation of the background), but have a look at
the Fortran bindings. Here we explicitly use a .def file to export the various
routines. The thing is that such a .def file allows the specification of the
name of the DLL _independently_ of the name of the produced import library. (I
made a mistake not too long with that LIBRARY statement, hence I know that it
works this way).
Of course this only works on platforms where a .def file is required, MinGW and
Win32.
Regards,
Arjen
> -----Original Message-----
> From: Greg Jung [mailto:gvj...@gmail.com]
> Sent: Friday, April 17, 2015 4:48 PM
> To: plplot-devel@lists.sourceforge.net
> Subject: [Plplot-devel] Wrestling library linkage experiments.
>
> Hi guys,
> I have one specific plplot question then I will give a lot of background
> info that I'm
> fairly certain would come up in the ensuing Q/A for the issue. The
> foreground is, I'm
> building GDL on mingw32, GDL wants to (optionally) bring in a number of
> libraries
> to accomplish added functionalities.
>
> The Question:
> How do I get a specially-named libplplot version to function? I wish to
> have
> libplplot-v2.dll be the shared that libplplot.dll.a is an import for - built
> and held in a
> directory separately specified. A copy of libplplot-v2.dll is then kept in
> the runtime
> path alongside the standard versions libplplot.dll, libplplotcxx.dll,
> wingcc.dll, etc.
> v2 version is actually "nodyn" - all of the same source except dynamic
> drivers are not
> enabled.
>
> What I've been trying:
> I'm using a semi-updated plplot distribution from git Oct 7, 2014.
> My first attempt was to use dlltool
> to create an import library libplplot.dll.a which hooked into
> libplplot-nodyn.dll, itself
> created by simply renaming. The link attempt failed so I went to the build
> directory
> and basically changed all references libplplot.dll to libplplot-nodyn.dll
>
> cat build.make | sed 's/libplplot.dll/libplplot-nodyn.dll/g' | sed
> 's/libplplot-
> nodyn.dll.a/libplplot.dll.a/g'
>
> (except that I did this in a text editor)
>
> This result worked to be successfully linked (and loaded, verified via
> depends_x86.exe).
> But it doesn't work.
> To see that the dysfunction is not in the code, I did the same procedure for
> the plplot
> version that was working, going to the original build directory, making a
> shareable;
> libplplot-sidyn.dll described by import library libplplot.dll.a - this didn't
> work, either.
>
> -----------------------
>
> background:
>
> I'm running on windows 7 (64 bit). 32-bit compiles are done using gcc
> 4.9.2 built by
> msys2; its all posix, dwarf2.
> In order to centralize the support libraries I keep those needed to run
> programs in
> c:/mingw/dll32-psxdw2 which is entered (via an NTFS junction) as c:/usr/lib32
> below:
> PATH:
> C:\cmd:C:\cmd/bin:C:\usr/bin:C:\usr/bin32:C:\usr/bin32/mingw:C:\usr/lib32:C:\Windo
> ws/system32:C:\Windows:C:\Windows/System32/Wbem
>
> greg@Homerw7 MINGW32 /d/bld/mingw32-psxdw2 $ ls -la plplot11/bin total 1232
> drwxr-xr-x 1 greg None 0 Apr 17 06:04 .
> drwxr-xr-x 1 greg None 0 Apr 17 06:04 ..
> -rwxr-xr-x 1 greg None 118558 Jan 28 14:54 libcsirocsa.dll -rwxr-xr-x 1 greg
> None
> 188815 Apr 17 06:02 libplplotcxx.dll -rwxr-xr-x 1 greg None 512591 Apr 17
> 06:02
> libplplot-sidyn.dll -rwxr-xr-x 1 greg None 195307 Apr 17 06:02
> libplplotwxwidgets.dll -
> rwxr-xr-x 1 greg None 120392 Jan 28 14:54 libqsastime.dll -rwxr-xr-x 1 greg
> None
> 107360 Apr 17 06:02 pltek.exe
>
> /d/bld/mingw32-psxdw2$ ls -la plplot11-SAVE/bin total 1236
> drwxr-xr-x 1 greg None 0 Jan 28 16:53 .
> drwxr-xr-x 1 greg None 0 Apr 17 05:33 ..
> -rwxr-xr-x 1 greg None 118558 Jan 28 14:54 libcsirocsa.dll -rwxr-xr-x 1 greg
> None
> 512079 Jan 28 14:54 libplplot.dll -rwxr-xr-x 1 greg None 188803 Jan 28 14:54
> libplplotcxx.dll -rwxr-xr-x 1 greg None 195295 Jan 28 14:54
> libplplotwxwidgets.dll -
> rwxr-xr-x 1 greg None 120392 Jan 28 14:54 libqsastime.dll -rwxr-xr-x 1 greg
> None
> 106848 Jan 28 14:55 pltek.exe
>
> and also, higher up the path, c:/usr/bin32, which keeps a hodge-podge of
> libraries I
> might be linking against for special reasons.
>
> $ ls -la /c/usr/bin32
> total 14580
> drwxr-xr-x 1 greg None 0 Apr 16 21:12 .
> drwxr-xr-x 1 greg None 0 Mar 30 14:57 ..
> -rwxr-xr-x 1 greg None 12328473 Mar 30 14:29 gdl.exe
> -rwxr-xr-x 1 greg None 203638 Apr 5 22:28 libcsironn.dll
> -rwxr-xr-x 1 greg None 186311 Apr 5 22:28 libplplotcxxd.dll
> -rwxr-xr-x 1 greg None 572150 Apr 5 22:28 libplplotd.dll
> -rwxr-xr-x 1 greg None 1107048 Apr 16 17:42 libplplot-nodyn.dll
> -rwxr-xr-x 1 greg None 512591 Apr 17 06:02 libplplot-sidyn.dll
> lrwxrwxrwx 1 greg None 12 Mar 7 19:51 mingw -> /mingw32/bin
>
>
> greg@Homerw7 MINGW32 /d/bld/mingw32-psxdw2 $ ls -la plplot11/bin total 1232
> drwxr-xr-x 1 greg None 0 Apr 17 06:04 .
> drwxr-xr-x 1 greg None 0 Apr 17 06:04 ..
> -rwxr-xr-x 1 greg None 118558 Jan 28 14:54 libcsirocsa.dll -rwxr-xr-x 1 greg
> None
> 188815 Apr 17 06:02 libplplotcxx.dll -rwxr-xr-x 1 greg None 512591 Apr 17
> 06:02
> libplplot-sidyn.dll -rwxr-xr-x 1 greg None 195307 Apr 17 06:02
> libplplotwxwidgets.dll -
> rwxr-xr-x 1 greg None 120392 Jan 28 14:54 libqsastime.dll -rwxr-xr-x 1 greg
> None
> 107360 Apr 17 06:02 pltek.exe
>
> greg@Homerw7 MINGW32 /d/bld/mingw32-psxdw2 $ ls -la plplot11-SAVE/bin total
> 1236
> drwxr-xr-x 1 greg None 0 Jan 28 16:53 .
> drwxr-xr-x 1 greg None 0 Apr 17 05:33 ..
> -rwxr-xr-x 1 greg None 118558 Jan 28 14:54 libcsirocsa.dll -rwxr-xr-x 1 greg
> None
> 512079 Jan 28 14:54 libplplot.dll -rwxr-xr-x 1 greg None 188803 Jan 28 14:54
> libplplotcxx.dll -rwxr-xr-x 1 greg None 195295 Jan 28 14:54
> libplplotwxwidgets.dll -
> rwxr-xr-x 1 greg None 120392 Jan 28 14:54 libqsastime.dll -rwxr-xr-x 1 greg
> None
> 106848 Jan 28 14:55 pltek.exe
>
> greg@Homerw7 MINGW32 /d/bld/mingw32-psxdw2 $ ls -la /c/mingw/dll32-psxdw2 |
> grep Jan\ 28
> -rwxr-xr-x 1 greg None 143271 Jan 28 14:54 cairo.dll
> -rwxr-xr-x 1 greg None 118558 Jan 28 14:54 libcsirocsa.dll
> -rwxr-xr-x 1 greg None 512079 Jan 28 14:54 libplplot.dll
> -rwxr-xr-x 1 greg None 188803 Jan 28 14:54 libplplotcxx.dll
> -rwxr-xr-x 1 greg None 195295 Jan 28 14:54 libplplotwxwidgets.dll
> -rwxr-xr-x 1 greg None 120392 Jan 28 14:54 libqsastime.dll
> -rwxr-xr-x 1 greg None 90308 Jan 28 14:54 mem.dll
> -rwxr-xr-x 1 greg None 82507 Jan 28 14:54 null.dll
> -rwxr-xr-x 1 greg None 120304 Jan 28 14:54 ps.dll
> -rwxr-xr-x 1 greg None 108182 Jan 28 14:54 svg.dll
> -rwxr-xr-x 1 greg None 114481 Jan 28 14:54 wingcc.dll
> -rwxr-xr-x 1 greg None 499063 Jan 28 14:55 wxwidgets.dll
> -rwxr-xr-x 1 greg None 100481 Jan 28 14:55 xfig.dll
>
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