My C++ extension does not work with LO4 anymore

[Christophe Devalland]

Hi,
The problem occurs on LO4 windows (installation or update of my extension
with extension manager) :

Runtime Error !
c:\Program Files\LibreOffice 4\URE\bin\uno.exe
R6034
An application has made an attenpt to load the C runtime library
incorrectly.

My extension for windows is compiled on MSVC2008. LO is compiled with MSVC
2010, isn't it ? I think that's the problem because it's OK with LO3 and
Apache OpenOffice 4.
How to fix that without recompiling my extension ?
Here is my extension :
http://cdeval.free.fr/spip.php?article132(translations available on
the top right)
Thanks for any help.
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Re: My C++ extension does not work with LO4 anymore

[Stephan Bergmann]

On 10/31/2013 10:40 AM, Christophe Devalland wrote:

The problem occurs on LO4 windows (installation or update of my
extension with extension manager) :

Runtime Error !
c:\Program Files\LibreOffice 4\URE\bin\uno.exe
R6034
An application has made an attenpt to load the C runtime library
incorrectly.

My extension for windows is compiled on MSVC2008. LO is compiled with
MSVC 2010, isn't it ? I think that's the problem because it's OK with
LO3 and Apache OpenOffice 4.
How to fix that without recompiling my extension ?
Here is my extension : http://cdeval.free.fr/spip.php?article132
(translations available on the top right)


That's a consequence of 
 
"Base-line Windows / C++ compiler upgraded to Visual Studio 2010 [...] 
runtime libraries for Visual Studio 2008 (msvcr90.dll) are no longer 
bundled."


Short of recompiling your extension against the LO 4 baseline, another 
option might be to tell users of your extension to first download and 
install the old MS runtime libraries on their system (which are 
available from MS, IIUC).


Stephan
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Re: My C++ extension does not work with LO4 anymore

[Christophe Devalland]

2013/10/31 Stephan Bergmann 

> That's a consequence of <
> http://www.libreoffice.org/download/4-0-new-features-and-fixes/#C.2B.2B_UNO_language_binding_and_URE_libraries>
> "Base-line Windows / C++ compiler upgraded to Visual Studio 2010 [...]
> runtime libraries for Visual Studio 2008 (msvcr90.dll) are no longer
> bundled."
>

Yes, but I provide this dll in my extension.


> Short of recompiling your extension against the LO 4 baseline, another
> option might be to tell users of your extension to first download and
> install the old MS runtime libraries on their system (which are available
> from MS, IIUC).
>


I tried to install MS runtime libraires (
http://www.microsoft.com/en-us/download/details.aspx?id=5582) but the
problem still occurs (uno.exe reports runtime error).
On the same computer my extension works fine with AOO4.

The only issue is to recompile ?
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Re: My C++ extension does not work with LO4 anymore

[Michael Stahl]

On 31/10/13 14:44, Christophe Devalland wrote:
> 2013/10/31 Stephan Bergmann  >
> 
> That's a consequence of
> 
> 
> "Base-line Windows / C++ compiler upgraded to Visual Studio 2010
> [...] runtime libraries for Visual Studio 2008 (msvcr90.dll) are no
> longer bundled."
> 
> Yes, but I provide this dll in my extension.
>  
> Short of recompiling your extension against the LO 4 baseline,
> another option might be to tell users of your extension to first
> download and install the old MS runtime libraries on their system
> (which are available from MS, IIUC).
> 
> I tried to install MS runtime libraires
> (http://www.microsoft.com/en-us/download/details.aspx?id=5582
> ) but the
> problem still occurs (uno.exe reports runtime error).
> On the same computer my extension works fine with AOO4.
> 
> The only issue is to recompile ?

IIRC with MSVC 2008 it is required that the DLL/EXE using the MSVCRT
DLLs needs to embed some crazy XML manifest, because the 2008 MSVCRT
DLLs are installed in some non-default location, not in the usual search
paths; this is different with MSVC 2010/2012 where the redistributatble
installs the DLLs into a default search path.

relevant bits in the LO build system are:

- passing "-manifestfile:mydll.manifest" to the link.exe so it writes
  the manifest to the file
- "mt.exe $(MTFLAGS) -nologo -manifest mydll.manifest
  -outputresource:mydll.dll\;2" to get the manifest file into the DLL

... and if you want to know why that is so ridiculously complicated (why
can't link.exe just put in the manifest into the DLL itself) you have to
use Microsoft.  or speaking of that, why do applications need to bundle
the libc in the first place...

i hope with the above info it should be possible to get a DLL that loads
with the user installed 2008 redistributable.  or you can rebuild it
with 2010 compiler.


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