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Re: 19981209: netcdf-3.5a configure fails under Linux 2.1.130

Juergen,

> To: address@hidden
> From: Juergen Rose <address@hidden>
> Subject: configure for netcdf-3.5a fails 
> Organization: .
> Keywords: 199812090935.CAA04426

In the above message, you wrote:

> A. On my system "Linux tiger 2.1.130 #1 SMP Mon Dec 7 14:37:43 GMT+1 1998
> i686 unknown" configure fails with:
> ...
> checking user-defined Fortran compiler "g77"... works
> checking for Fortran .F compiler... 
> checking if Fortran compiler handles *.F files... yes
> checking for C-equivalent to Fortran routine "SUB"... sub_

> checking for Fortran "byte"... yes
> checking for Fortran "integer*2"... yes
> checking if Fortran "byte" is C "signed char"... no
> checking if Fortran "byte" is C "short"... no
> checking if Fortran "byte" is C "int"... no
> checking if Fortran "byte" is C "long"... no
> checking if Fortran "integer*2" is C "short"... no
> checking if Fortran "integer*2" is C "int"... no
> checking if Fortran "integer*2" is C "long"... no
> checking if Fortran "integer" is C "int"... no
> checking if Fortran "integer" is C "long"... no
> checking if Fortran "real" is C "float"... no
> checking if Fortran "real" is C "double"... no
> checking if Fortran "doubleprecision" is C "double"... no
> checking if Fortran "doubleprecision" is C "float"... no

The above indicates that the configure script was unable to determine
any Fortan/C equivalence types (e.g. a Fortran INTEGER is equivalent to
a C "int").  This is very bad and means that the Fortran netCDF
interface can't be built.

I can't duplicate your problem on our Linux 2.0.36 system, so you are
going to have to help me.  Would you please do the following:

    1.  Go to the top-level source directory.

    2.  Edit the file "configure".  Change the following:

            echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
            if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
              echo $ac_n "(cached) $ac_c" 1>&6
            else
              if test "$cross_compiling" = yes; then
              ac_cv_c_cross=yes
            else
            cat > conftest.$ac_ext <<EOF
            #line 2327 "configure"
            #include "confdefs.h"
            main(){return(0);}
            EOF
            { (eval echo configure:2331: \"$ac_link\") 1>&5; (eval $ac_link) 
2>&5; }
            if test -s conftest && (./conftest; exit) 2>/dev/null; then
              ac_cv_c_cross=no
            else
              ac_cv_c_cross=yes
            fi
            fi
            rm -fr conftest*
            fi

            echo "$ac_t""$ac_cv_c_cross" 1>&6
            cross_compiling=$ac_cv_c_cross

        to (2 modifications marked by "<<<"

            echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
            if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
              echo $ac_n "(cached) $ac_c" 1>&6
            else
              if test "$cross_compiling" = yes; then
              ac_cv_c_cross=yes
            else
            cat > conftest.$ac_ext <<EOF
            #line 2327 "configure"
            #include "confdefs.h"
            main(){return(0);}
            EOF
            { (eval echo configure:2331: \"$ac_link\") 1>&5; (eval $ac_link) 
2>&5; }
            if test -s conftest && (./conftest; exit) 2>/dev/null; then
              ac_cv_c_cross=no
            else
              ac_cv_c_cross=yes
            fi
            fi
            #rm -fr conftest*           # <<< "#" added
            fi

            echo "$ac_t""$ac_cv_c_cross" 1>&6
            cross_compiling=$ac_cv_c_cross
            exit                        # <<< line added

    3.  Execute the command "make distclean".

    4.  Remove the file "config.cache" if it exists.

    5.  Set the following environment variables to the indicated values:

            VARIABLE    VALUE
            --------    -----
            CC          /usr/bin/gcc
            CPPFLAGS    -Df2cFortran
            CFLAGS      -g
            FC          /usr/bin/g77
            FFLAGS      -g -Wno-globals
            CXX         /usr/bin/g++

    6.  Excecute the configure script.  Redirect standard output and
        standard error to the file "configure.log".

    7.  Send me the output from the following command:

            /usr/bin/gcc -o conftest -g -Df2cFortran  conftest.c

    8.  Send me the following files:

            configure.log
            config.log
            conftest.c

Please follow the above steps exactly.

--------
Steve Emmerson   <http://www.unidata.ucar.edu>