Re: gcc / renderman compile question

[Elfyn McBratney <elfyn at cygwin dot com>]

Dean Strotz wrote:
> hello everybody. i am trying slowly but steadily to switch from microsoft 
> visual studio to gcc, but i am having some issues.
> as i try to compile my light.c example with gcc with the mentioned options, 
> i get the following errors.
> can anybody tell my what i do wrong or do not set as option or else whats 
> going on.
> the idea is to include ri.h of C:\BMRT2.2\include and link it against 
> libribout.lib the executable will then be able to generate rib code from c 
> code.
> 
> [...]
> C:\Documents and Settings\Dean\Desktop\renderman essential\trials>gcc 
> light.c -I
>  C:\BMRT2.6\include C:\BMRT2.6\lib\libribout.lib -o light.exe
> 
> C:\BMRT2.6\lib\libribout.lib(obj/intelnt/libri3/ribegend.obj)(.text+0x6):src\lib
> ri3\ribegen: undefined reference to `__chkstk'
> C:\BMRT2.6\lib\libribout.lib(obj/intelnt/libri3/rigeom.obj)(.text+0x6):src\libri
> 3\rigeom.: undefined reference to `__chkstk'
> C:\BMRT2.6\lib\libribout.lib(obj/intelnt/libri3/rigeom.obj)(.text+0x6):src\libri
> 3\rigeom.: undefined reference to `__chkstk'
> C:\BMRT2.6\lib\libribout.lib(obj/intelnt/libri3/rigeom.obj)(.text+0x6):src\libri
> 3\rigeom.: undefined reference to `__chkstk'
> C:\BMRT2.6\lib\libribout.lib(obj/intelnt/libri3/rigeom.obj)(.text+0x6):src\libri
> 3\rigeom.: undefined reference to `__chkstk'
> C:\BMRT2.6\lib\libribout.lib(obj/intelnt/libri3/rigeom.obj)(.text+0x6):src\libri
> 3\rigeom.: more undefined references to `__chkstk' follow
> C:\BMRT2.6\lib\libribout.lib(obj/intelnt/libribout/ribbegin.obj)(.text+0x3):src\
> libribout\ribb: undefined reference to `??2@YAPAXI@Z'

I'm guessing from the above that this is a C++ .lib?  You won't be able to use this
.lib in gcc as they use different name mangling schemes.  Either way you should
take a look at the FAQ entry entitled "How do I link against .lib files?" which is
located here <http://www.cygwin.com/faq/faq_4.html#SEC103>.

-- Elfyn

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