Re: Firebird - link static library

On 21.07.2016 12:55, Michael Stahl wrote:
> On 20.07.2016 21:18, Bunth Tamás wrote:
> > The patch:
> > https://gerrit.libreoffice.org//25673/
> >
> > has an error on Windows (patch set 42):
> > LINK : fatal error LNK1181: cannot open input file 'tommath.lib'
> >
> > I think it's because I created tommath.lib using the ar linux command,
> > and the result is slightly different from the .lib file that msvc
> > expects.[1][2]

indeed, Cygwin's ar can't be used.

> > I would have liked to use lib.exe to create tommath.lib instead, which
> > seems to be the tool on Windows to create a .lib file, but I couldn't
> > find the appropriate makefile marco to use it (like the LD variable
> > stores the path of link.exe), since the variable AR stores "ar" in
> > case of Windows too.

sorry, sent this too early totally missing your question: if the AR
variable is the only problem, just pass in AR=path-to-lib.exe from the
ExternalProject_*.mk... probably that's $(COMPATH)/bin/lib.exe, maybe
it's necessary to use "cygpath" too, see gb_AUTOCONF_WRAPPERS for how
it's done with LD currently.

> > Am I right about the cause of the issue, and if so, how can I refer to
> > lib.exe to use it for creating tommath.lib?
>
> looking at com_MSC_class.mk, the command to link a static library goes
> like this: link.exe -LIB ***.obj -out:foo.lib
>
> are you using the autoconf_wrappers?  then the variable LD points to
> link.exe (not to gcc-wrapper.exe) so if tommath makefiles use "$(LD)
> -lib" to link you might have some success, but of course there's no
> mapping of unix-ld-flags to link.exe flags in this case since link.exe
> is directly invoked...
>
> perhaps try overriding LD="$(CXX) -lib" or something along those lines -
> there is some translation of unix-ld-flags in gcc-wrapper.exe, see the
> function "processccargs".
>
> the gcc-wrappers were intended to be called by autoconf tests and by
> libtool, if your project doesn't use libtool i'm not sure they will
> translate all of the parameters used etc.