Re: 19990819: netcdf-3.4 configure script failure on IBM RS/6000

Hi Harsh,

> From: Harsh Anand <address@hidden>
> Subject: netcdf-3.4 installation configure script fails on IBM RS/6000
> Organization: LBNL/NERSC
> Keywords: 199908182113.PAA12038 netCDF 3.4 AIX

In the above message, you wrote:

> I am trying to install netcdf-3.4 on IBM RS/6000 and configure script
> fails.
> Please see the information appended below.
> 
> Thanks for your help.
> 
> Harsh
> 
> --
>  Harsh Anand ----------------------------------   address@hidden  -|
>  NERSC User Services                      phone:  (510) 486-5575   |
>  Lawrence Berkeley Lab                      Fax:  (510) 486-7520   |
>  Univ. of California, Berkeley ------------------------------------
> 
> 1. Here are the list of environment variables that I set before runnning
> 
> the script Configure:
> setenv CC       xlc
> setenv CPPFLAGS -DNDEBUG
> setenv CFLAGS   -O
> setenv FC       xlf
> setenv FFLAGS   -O
> setenv LIBS     /lib/libm.a

The last line above might be the cause of your problems.  The LIBS
environment variable, if set, needs to be a set of library references
acceptable to both the C compiler and your linker.  It could be that
your C compiler doesn't handle library references in the above form.  I
suggest trying something like "-L/lib -lm" instead.

> 
> > uname -a
> AIX d100103 3 4 000034254C00
> 
> 
> > cat VERSION
> 3.4
> 
> > which xlf
> /bin/xlf
> 
> > which xlc
> /usr/vac/bin/xlc
> 
> > cat configure.log
> creating cache ./config.cache
> checking for m4... m4
> checking user-defined C compiler "xlc"
> checking C compiler... works
> checking how to make dependencies... false
> checking for xlC... no
> checking for CC... no
> checking for cxx... no
> checking for c++... no
> checking for g++... no
> checking for gcc... no
> configure: warning: Could not find working C++ compiler
> configure: warning: Setting CXX to the empty string
> configure: warning: The C++ interface will not be built
> checking how to run the C preprocessor... /lib/cpp
> checking user-defined Fortran compiler "xlf"... 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"... yes
> 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"... yes
> 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"... yes
> checking if Fortran "real" is C "float"... yes
> checking if Fortran "doubleprecision" is C "double"... yes
> checking for Fortran-equivalent to netCDF "byte"... byte
> checking for Fortran-equivalent to netCDF "short"... integer*2
> checking for math library
> checking for -lc... yes
> checking for ar... ar
> checking for ranlib... ranlib
> checking for stdlib.h... yes
> checking for sys/types.h... yes
> checking for strerror... yes
> checking whether cross-compiling... yes

If the configure script thinks that you're cross-compiling, then it
couldn't compile a relatively simple C program.  The reason for this
should be in the file "config.log".

> checking for working ftruncate()... configure: error: can not run test
> program while cross compiling
> 
> > cat config.log
> This file contains any messages produced by compilers while
> running configure, to aid debugging if configure makes a mistake.
> 
> configure:1020: xlc -c -O -DNDEBUG conftest.c 1>&5
> configure:1220: xlc -E -DNDEBUG conftest.c >/dev/null 2>conftest.out
> 1506-173 (W) Option lm is not valid.  Enter xlc for list of valid
> options.
> 1506-173 (W) Option lm is not valid.  Enter xlc for list of valid
> options.

The above warnings are rather odd considering that the "lm" option
doesn't appear on the "xlc" command-line.  Could your C compilation
environment be faulty?

> configure:1235: xlc -E -traditional-cpp -DNDEBUG conftest.c >/dev/null
> 2>conftest.out
> xlc: 1501-210 command option t contains an incorrect subargument
> 1506-173 (W) Option lm is not valid.  Enter xlc for list of valid
> options.
> 1506-173 (W) Option lm is not valid.  Enter xlc for list of valid
> options.
> configure:1319: xlf -c -O conftest.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftest.f.
> configure:1422: xlf -o conftest -O conftest.F
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftest.F.
> configure:1463: xlf -c -O conftest.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftest.f.
> configure:1498: xlf -c -O conftest.f
> ** sub   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftest.f.
> configure:1521: xlf -c -O conftest.f
> ** sub   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftest.f.
> configure:1555: xlc -c -DNDEBUG -O conftest.c
> configure:1557: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1559: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1561: ./conftest
> configure:1602: xlc -c -DNDEBUG -O conftest.c
> configure:1604: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1606: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1608: ./conftest
> configure:1649: xlc -c -DNDEBUG -O conftest.c
> configure:1651: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1653: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1655: ./conftest
> configure:1696: xlc -c -DNDEBUG -O conftest.c
> configure:1698: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1700: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1702: ./conftest
> configure:1747: xlc -c -DNDEBUG -O conftest.c
> configure:1749: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1751: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1753: ./conftest
> configure:1794: xlc -c -DNDEBUG -O conftest.c
> configure:1796: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1798: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1800: ./conftest
> configure:1841: xlc -c -DNDEBUG -O conftest.c
> configure:1843: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1845: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1847: ./conftest
> configure:1890: xlc -c -DNDEBUG -O conftest.c
> configure:1892: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1894: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1896: ./conftest
> configure:1937: xlc -c -DNDEBUG -O conftest.c
> configure:1939: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1941: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1943: ./conftest
> configure:1984: xlc -c -DNDEBUG -O conftest.c
> configure:1986: xlf -O -c conftestf.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftestf.f.
> configure:1988: xlf -o conftest -O  conftestf.o conftest.o /lib/libm.a
> configure:1990: ./conftest
> configure:2023: xlf -c -O conftest.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftest.f.
> configure:2044: xlf -c -O conftest.f
> ** _main   === End of Compilation 1 ===
> 1501-510  Compilation successful for file conftest.f.
> configure:2084: xlc -o conftest -O -DNDEBUG  conftest.c -lc  /lib/libm.a
> 1>&5
> configure:2213: /lib/cpp -DNDEBUG conftest.c >/dev/null 2>conftest.out
> configure:2247: /lib/cpp -DNDEBUG conftest.c >/dev/null 2>conftest.out
> configure:2297: xlc -o conftest -O -DNDEBUG  conftest.c /lib/libm.a 1>&5
> 
> configure:2331: xlc -o conftest -O -DNDEBUG  conftest.c /lib/libm.a 1>&5

The line above is the one that checks for cross-compilation.  Since
there are no more lines after it, it would appear that your C
compilation environment is faulty.

You might try the following to discover the underlying problem:

    1.  Go to the top-level source directory.

    2.  Execute the command "make distclean".

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

    4.  Set your environment variables as before.

    5.  Edit the configure script: insert the line "exit" before line
        2337, which should contain the command "rm -fr conftest*".

    6.  Execute the configure script.  It will exit prematurely, after
        testing for cross-compilation, leaving the test file
        "conftest.c" around.  The last line in the file "config.log"
        will be the command that tried to build the program "conftest"
        from that file.

    7.  Try manually building the program "conftest" from the file
        "conftest.c".  This should help you discover the underlying
        problem.

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