Re: [Opencxx-users] Running OCC under cygwin.

[Alexandre T. <kt...@fr...>]

It means that compiling the meta-level (VerboseClass.mc) file will =20
generate a specific OpenC++ compiler able to compile your base-level =20
program (Person.cc). The "-locc" option is passed to the linker by occ =20=

and means that the OpenC++ library "libocc.a" is needed at link time.

You could instead compile the meta-level file as a plugin (i.e. a =20
dynamic library) and link it to the OpenC++ compiler at runtime.

Read the reference guide for more information.

Cheerz

Alex

------------------------------------------------------------------------=20=

-
Alexandre Tolmos
E-mail:=A0...@fr...
ICQ: 92964905
------------------------------------------------------------------------=20=

-
"Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn."
------------------------------------------------------------------------=20=

-

> Actually I did not understand what '-locc' option means and why making =
=20
> an exe file with the .mc file and then running it to compile .cc file =20=

> works? If I dont give -locc option, it does not work
>
> Thanks,
> Unmesh
>
>
>> From: Grzegorz Jakacki <ja...@he...>
>> To: Unmesh joshi <unm...@ho...>
>> CC: <ope...@li...>
>> Subject: Re: [Opencxx-users] Running OCC under cygwin.
>> Date: Wed, 20 Aug 2003 08:20:11 +0800 (CST)
>>
>> On Mon, 18 Aug 2003, Unmesh joshi wrote:
>>
>> > Hi,
>> >
>> > I finally could run VerboseClass sample in the samples directory.
>> > I had to give following commad, which I found in TestSuite.log =
file.
>> >
>> > ../src/occ -I../src -I../gc VerboseClass.mc -- -L../tmplib -locc -- =
=20
>> -o
>> > ./verbose.exe
>> >
>> > ./verbose.exe ./Person.cc -- -- -o ./person.exe
>> >
>> >
>> > I got following warning messages but it did work
>> >
>> > ../gc/gc_cpp.h:132: warning: `_cdecl' redefined
>> > *Initialization*:1: warning: this is the location of the previous =20=

>> definition
>> > g++: Ambiguous abbreviation --
>> >
>> >
>> > Can you please explain to me what does above commands mean? Why the =
=20
>> normal
>> > commnad
>> > occ -m VerboseClass.mc did not work?
>>
>> Most likely because, as you wrote, not everything is installed =20
>> properly on
>> your platform.
>>
>> The options you get basically mean that occ will be looking for =20
>> includes
>> in ../src (required to include e.g. 'mop.h' and dependants) and ../gc
>> (required to include 'gc.h' from 'mop.h') and will add '-L../tmplib =20=

>> -locc'
>> to the commandline of the underlying compiler. This in turn will =20
>> cause the
>> linker run by the underlying compiler to link against libocc.a =
library
>> found in '../tmplib'. The second '--' is superfluous (a bug in =20
>> testsuite).
>>
>> >
>> > Also I figured out that generated make script is broken and make =20=

>> install
>> > does not install openc++ properly in the --prefix directory.
>>
>> Plase send output of configure and make.
>>
>> BR
>> Grzegorz
>>
>> ##################################################################
>> # Grzegorz Jakacki                       Huada Electronic Design #
>> # Senior Engineer, CAD Dept.              1 Gaojiayuan, Chaoyang #
>> # tel. +86-10-64365577 x2074               Beijing 100015, China #
>> # Copyright (C) 2002 Grzegorz Jakacki, HED. All Rights Reserved. #
>> ##################################################################