[Bug libfortran/60468] New: ./fpu-target.h:93:3: error: unknown type name 'choke'

[Bug libfortran/60468] New: ./fpu-target.h:93:3: error: unknown type name 'choke'

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60468

            Bug ID: 60468
           Summary: ./fpu-target.h:93:3: error: unknown type name 'choke'
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: danglin at gcc dot gnu.org
              Host: hppa1.1-hp-hpux10.20
            Target: hppa1.1-hp-hpux10.20
             Build: hppa1.1-hp-hpux10.20

Build of libgfortran fails here:

libtool: compile:  /xxx/gnu/gcc/objdir/./gcc/xgcc -B/xxx/gnu/gcc/objdir/./gcc/
-
B/opt/gnu/gcc/gcc-4.9/hppa1.1-hp-hpux10.20/bin/
-B/opt/gnu/gcc/gcc-4.9/hppa1.1-h
p-hpux10.20/lib/ -isystem /opt/gnu/gcc/gcc-4.9/hppa1.1-hp-hpux10.20/include
-isystem /opt/gnu/gcc/gcc-4.9/hppa1.1-hp-hpux10.20/sys-include -DHAVE_CONFIG_H
-I. -
I../../../gcc/libgfortran -iquote../../../gcc/libgfortran/io
-I../../../gcc/libg
fortran/../gcc -I../../../gcc/libgfortran/../gcc/config
-I../../../gcc/libgfortr
an/../libquadmath -I../.././gcc -I../../../gcc/libgfortran/../libgcc
-I../libgcc
 -std=gnu99 -Wall -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definitio
n -Wextra -Wwrite-strings -fcx-fortran-rules -g -O2 -MT fpu.lo -MD -MP -MF
.deps
/fpu.Tpo -c ../../../gcc/libgfortran/runtime/fpu.c  -fPIC -DPIC -o .libs/fpu.o
In file included from ../../../gcc/libgfortran/runtime/fpu.c:29:0:
./fpu-target.h: In function 'get_fpu_except_flags':
./fpu-target.h:93:3: error: unknown type name 'choke'
   choke me   ^

Problem is sysv version of fpu-target.h has been selected because configure
found fpsetmask but it didn't find fp_except or fp_rnd because they are
defined in <math.h>, not <ieeefp.h>.  The fp routines are also declared
in <math.h>.

On hpux11, this doesn't happen because fpsetmask is gone.  As a result,
generic support is selected. This is probably not optimal but
that's another issue.

[Bug libfortran/60468] ./fpu-target.h:93:3: error: unknown type name 'choke'

[fxcoudert at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60468

Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

[Bug libfortran/60468] ./fpu-target.h:93:3: error: unknown type name 'choke'

[fxcoudert at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60468

Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch
             Status|UNCONFIRMED                 |NEW
                URL|                            |https://gcc.gnu.org/ml/fort
                   |                            |ran/2014-06/msg00082.html
   Last reconfirmed|                            |2014-06-07
                 CC|                            |fxcoudert at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
Patch proposed here to fix the issue on hpux10:
https://gcc.gnu.org/ml/fortran/2014-06/msg00082.html

For hpux11, what should be used for FPU control? Googl'ing suggests that HP/UX
has moved to fenv.h support, with additional fegettrapenable/fesettrapenable
function calls. Would you be able to confirm this, and point me to
documentation for hpux11 fenv's documentation? If so, I'm willing to add
support for that platform.

[Bug libfortran/60468] ./fpu-target.h:93:3: error: unknown type name 'choke'

[dave.anglin at bell dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60468

--- Comment #2 from dave.anglin at bell dot net ---
On 7-Jun-14, at 6:49 AM, fxcoudert at gcc dot gnu.org wrote:

> For hpux11, what should be used for FPU control? Googl'ing suggests  
> that HP/UX
> has moved to fenv.h support, with additional fegettrapenable/ 
> fesettrapenable
> function calls. Would you be able to confirm this, and point me to
> documentation for hpux11 fenv's documentation? If so, I'm willing to  
> add
> support for that platform.

Correct.  fenv.h is available from 11.00 onward.  The following calls  
are defined:

    extern void feclearexcept(int);
    extern void fegetexceptflag(fexcept_t *, int);
    extern void feraiseexcept(int);
    extern void fesetexceptflag(const fexcept_t *, int);
    extern int  fetestexcept(int);
    extern int  fegetround(void);
    extern int  fesetround(int);
    extern void fegetenv(fenv_t *);
    extern int  feholdexcept(fenv_t *);
    extern void fesetenv(const fenv_t *);
    extern void feupdateenv(const fenv_t *);

      extern int  fegetflushtozero(void);
      extern void fesetflushtozero(int);
      extern int  fegettrapenable(void);
      extern void fesettrapenable(int);

In addition, ia64 has:

        extern int  fegetprec(void);
        extern int  fesetprec(int);

Documentation is getting harder to get online.  The following link is  
for ia64 but should be mostly
relevant :
http://h21007.www2.hp.com/portal/site/dspp/menuitem.863c3e4cbcdc3f3515b49c108973a801/?ciid=0008a22194f02110a22194f02110275d6e10RCRD

I have an older pdf version that is parisc specific.

It seems HP no longer has man pages online, so third-party links are  
all that's available:
http://www.polarhome.com/service/man/generic.php?qf=feclearexcept&type=2&of=HP-UX&sf=3m

Thanks,
Dave

--
John David Anglin    dave.anglin@bell.net

[Bug libfortran/60468] ./fpu-target.h:93:3: error: unknown type name 'choke'

[fxcoudert at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60468

--- Comment #3 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
Author: fxcoudert
Date: Sun Jun 15 09:44:04 2014
New Revision: 211685

URL: https://gcc.gnu.org/viewcvs?rev=211685&root=gcc&view=rev
Log:
    PR libfortran/60468
    * configure.ac: Include <math.h> when checking for
    fp_except_t and fp_rnd_t types.
    * configure: Regenerate.

Modified:
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/configure
    trunk/libgfortran/configure.ac

[Bug libfortran/60468] ./fpu-target.h:93:3: error: unknown type name 'choke'

[fxcoudert at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60468

Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
Fixed on trunk.