[Bug-gsl] Re: Problem compiling gsl 1.8 on AIX 5.2

[Juergen Henge-Ernst]

Hi,

Quoting Juergen Henge-Ernst <address@hidden>:
>        /bin/sh ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H

>  -I. -I. -I.. -I..     -g -O2 -c -o fp.lo fp.c
> gcc -DHAVE_CONFIG_H -I. -I. -I.. -I.. -g -O2 -c fp.c  -DPIC -o .libs/fp.o
> In file included from fp.c:22:
> fp-aix.c: In function `gsl_ieee_set_mode':
> fp-aix.c:30: error: `fprnd_t' undeclared (first use in this function)
> fp-aix.c:30: error: (Each undeclared identifier is reported only once
> fp-aix.c:30: error: for each function it appears in.)
> fp-aix.c:30: error: parse error before "rnd"
> fp-aix.c:55: error: `rnd' undeclared (first use in this function)
> fp-aix.c:55: error: `FP_RND_RN' undeclared (first use in this function)
> fp-aix.c:59: error: `FP_RND_RM' undeclared (first use in this function)
> fp-aix.c:63: error: `FP_RND_RP' undeclared (first use in this function)
> fp-aix.c:67: error: `FP_RND_RZ' undeclared (first use in this function)
> make: 1254-004 The error code from the last command is 1.
used gcc was gcc (GCC) 3.3.2

I tracked down the problem and found a solution that works for me. The
problem is that /usr/includes/float.h is not used, instead the float.h
of the installed gcc (/opt/freware/...) is used. In that float.h no
such structs are defined. So I copied the missing parts (all between
#ifdef _ALL_SOURCE and its #endif from /usr/includes/float.h into a
aix_float.h which I include in fp-aix.c

So the compilation works, but its not a portable AIX solution.

Greeting
 Jürgen Henge-Ernst
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