Re: warnings with gcc9.0.1 and clang 8

[John W. Eaton]

On 4/3/19 12:52 PM, Dmitri A. Sergatskov wrote:

> lto has at least one lto-specific warning:
>
> ../liboctave/external/quadpack/dqagi.f:188:5: warning: type of 'xerror' 
> does not match original declaration [-Wlto-type-mismatch]
>    188 |       IF(IER.GT.0) CALL XERROR('ABNORMAL RETURN FROM 
> DQAGI',26,IER,LVL)
>        |     ^
> ../liboctave/external/quadpack/xerror.f:1:5: note: type mismatch in 
> parameter 5
>      1 |       SUBROUTINE XERROR(MESSG,NMESSG,NERR,LEVEL)
>        |     ^
> ../liboctave/external/quadpack/xerror.f:1:5: note: type 'void' should 
> match type 'long int'
> ../liboctave/external/quadpack/xerror.f:1:5: note: 'xerror' was 
> previously declared here
> ../liboctave/external/quadpack/xerror.f:1:5: note: code may be 
> misoptimized unless '-fno-strict-aliasing is used'
> ../liboctave/external/odepack/sintdy.f:100:5: warning: type of 'xerrwd' 
> does not match original declaration [-Wlto-type-mismatch]
>    100 |      1     30, 51, 0, 1, K, 0, 0, 0.0E0, 0.0E0)
>        |     ^
> ../liboctave/external/quadpack/xerror.f:37:5: warning: type of 'xerrwd' 
> does not match original declaration [-Wlto-type-mismatch]
>     37 |       CALL XERRWD(MESSG,NMESSG,NERR,LEVEL,0,0,0,0,0.,0.)
>        |     ^
> ../liboctave/external/slatec-err/xerrwd.f:3:5: note: type mismatch in 
> parameter 11
>      3 |       SUBROUTINE XERRWD (MSG, NMES, NERR, LEVEL, NI, I1, I2, 
> NR, R1, R2)
>        |     ^
> ../liboctave/external/slatec-err/xerrwd.f:3:5: note: type 'long int' 
> should match type 'void'
> ../liboctave/external/slatec-err/xerrwd.f:3:5: note: 'xerrwd' was 
> previously declared here
> ../liboctave/external/slatec-err/xerrwd.f:3:5: note: code may be 
> misoptimized unless '-fno-strict-aliasing is used'
>
> But gcc also segfaults here (I filled the bug to redhat), so may be it 
> is not real...

I pushed the following changeset for the Fortran problems:

  http://hg.savannah.gnu.org/hgweb/octave/rev/ac5e5da675e3

jwe