Re: Error building libgcj on HP 10.20

["'David Scott Urban" <urban at ast dot lmco dot com>]

The patch did not work. I am still getting the same error.

I am currently using gcc 2.95.2 with the java patches applied. I am going to try 
and compile the latest snapshot. Then, recompile libgcj with the patch applied 
to see if that makes a difference.

I will start with a fresh setup of libgcj.

Scott Urban

> 
> > In file included from ../../../libgcj/libjava/java/lang/mprec.h:36,
> >                  from ../../../libgcj/libjava/java/lang/fdlibm.h:25,
> >                  from ../../../libgcj/libjava/interpret.cc:20:
> > 
/home/urban/local/hp10/lib/gcc-lib/hppa1.1-hp-hpux10.20/2.95.2/include/math.h:
> > In function `double pow(double, int)':
> > 
/home/urban/local/hp10/lib/gcc-lib/hppa1.1-hp-hpux10.20/2.95.2/include/math.h:74
> > : declaration of C function `double pow(double, int)' conflicts with
>                    ^^^^^^^^^^
> 
> There's a clue... pow(double, int) is supposed to be declared as an
> inline C++ function, not a C function.
> 
> The header libjava/java/lang/mprec.h includes <math.h> from  within a
> `extern "C" {...}' block... that looks wrong to me.  (Are nested "C"
> blocks even allowed in C++?)
> 
> Try the patch below and let us know if it works.  (BTW the warnings
> about __malloc__ indicate your gcj compiler is out-of-date.)
> 
> Index: mprec.h
> ===================================================================
> RCS file: /cvs/java/libgcj/libjava/java/lang/mprec.h,v
> retrieving revision 1.3
> diff -u -r1.3 mprec.h
> --- mprec.h     1999/07/12 09:40:07     1.3
> +++ mprec.h     2000/01/07 18:56:47
> @@ -33,6 +33,10 @@
>  #include <config.h>
>  #include "ieeefp.h"
> 
> +#ifdef __cplusplus
> +}
> +#endif
> +
>  #include <math.h>
>  // #include <float.h>
>  // #include <errno.h>
> @@ -51,6 +55,9 @@
>  #include <sys/config.h>
>  #endif
> 
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> 
>  /* ISO C9X int type declarations */
> 
> -- 
> Jeff Sturm
> jsturm@sigma6.com