🚀 go-pugleaf

GOT IT!

Found the problem. The -O2 in conjuction with -pedantic generates the
error. Seems I'll drop -pedantic. :)

Cheers,

Paulo Matos

Paulo Matos escreveu:

> Maxim Yegorushkin escreveu:
>
> > Paulo Matos wrote:
> > > Hi all,
> > >
> > > I'm using argp and when I finally try to compile my C++ prog I get:
> > > /usr/include/argp.h: In function `void argp_usage(const argp_state*)':
> > > /usr/include/argp.h:565: error: declaration of `void argp_usage(const
> > > argp_state*) throw ()' throws different exceptions
> > > /usr/include/argp.h:502: error: than previous declaration `void
> > > argp_usage(const argp_state*)'
> > >
> > > I'm using g++ 3.3.4, glibc 2.3.5 and compiling with -Wall -std=c++98.
> > >
> > > Any ideas why this is happening? Using extern "C" { #include <argp.h> }
> > > won't help. :(
> >
> > The error says that the two declarations are not the same.
> >
> > The declaration
> >
> >     void argp_usage(const argp_state*);
> >
> > is essentially a short form of
> >
> >     void argp_usage(const argp_state*) throw(...);
> >
> > which is not the same as
> >
> >     void argp_usage(const argp_state*) throw ();
> >
> > There must be something wrong with the header file or more likely with
> > preprocessor definitions.
>
> Indeed this is a strange issue. I can work out simple examples with
> argp but in my program just blows. While trying to compile a bison
> generated parser which indirectly includes argp with the following
> flags (most added automaticly by autoconf/automake, do I need to have
> anything for argp in configure.ac?):
> g++ -DHAVE_CONFIG_H -I. -I. -I..  -ansi -std=c++98 -pedantic -Wall
> -ggdb -I./include "-DBUILDDATE=\"`date +'%Y-%b-%d %R'`\"" -DESATLOG=5
> -g -O2 -MT msat-parser.o -MD -MP -MF  ".deps/msat-parser.Tpo" -c -o
> msat-parser.pre msat-parser.cc
>
> if I change -c to -E and check the preprocessed file I get the
> following line where the warning shows up:
> 502: extern void argp_usage (const struct argp_state *__state);
> 503: extern void __argp_usage (const struct argp_state *__state);
>
> ...
>
> # 563 "/usr/include/argp.h" 3 4
> extern __inline__ void
> argp_usage (const struct argp_state *__state) throw ()
> {
>   argp_state_help (__state, stderr, (0x02 | 0x04 | 0x100));
> }
>
> Can it be because of inline? Is there any known issue on argp with
> flex/bison or autoconf/automake specifics for argp?
> 
> Cheers,
> 
> Paulo Matos