Re: 20030217: building netcdf C++ interface using pgCC

>To: address@hidden
>From: Merrill Bean <address@hidden>
>Subject: Re: 20030217: building netcdf C++ interface using pgCC
>Organization: NMSU/PSL
>Keywords: 200302171812.h1HICP414593 netCDF C++ pgCC

Merrill,

> I tried the 3.5.1beta10 and I see the same errors, the warning in the c 
> compile, and the errors in the c++.  If the log files would be helpful I
> can send those as well, here are the errors:
> 
> pgcc -c -DpgiFortran  -I.   -DpgiFortran -DNDEBUG  putget.c
> PGC-W-0142-Assignment to const object not allowed (putget.c: 373)
> PGC-W-0142-Assignment to const object not allowed (putget.c: 11527)
> PGC-W-0142-Assignment to const object not allowed (putget.c: 11532)
> PGC/x86 Linux/x86 3.3-2: compilation completed with warnings
> pgcc -c -DpgiFortran  -I.   -DpgiFortran -DNDEBUG  string.c
> Making `all' in directory /usr/local/src/netcdf/netcdf-3.5.1-beta10/src/cxx
> 
> make[2]: Entering directory 
> `/usr/local/src/netcdf/netcdf-3.5.1-beta10/src/cxx'
> pgCC -c  -I../libsrc -I.   -DpgiFortran -DNDEBUG  netcdf.cpp
> "ncvalues.h", line 35: warning: integer conversion resulted in a change of 
> sign
>   static const ncbyte ncBad_byte = NC_FILL_BYTE;
>                                    ^
> 
> pgCC -c  -I../libsrc -I.   -DpgiFortran -DNDEBUG  ncvalues.cpp
> "ncvalues.h", line 35: warning: integer conversion resulted in a change of 
> sign
>   static const ncbyte ncBad_byte = NC_FILL_BYTE;
> 
> ar cru libnetcdf_c++.a netcdf.o ncvalues.o
> ranlib libnetcdf_c++.a
> pgCC -c  -I../libsrc -I.   -DpgiFortran -DNDEBUG  nctst.cpp
> "ncvalues.h", line 35: warning: integer conversion resulted in a change of 
> sign
>   static const ncbyte ncBad_byte = NC_FILL_BYTE;
>                                    ^
> 
> pgCC -o nctst   nctst.o libnetcdf_c++.a -L../libsrc -lnetcdf 
> C++ prelinker: executing: /usr/pgi/linux86/bin/pgCC -I../libsrc -I. 
> -DpgiFortran -DNDEBUG -c nctst.cpp
> "ncvalues.h", line 35: warning: integer conversion resulted in a change of 
> sign
>   static const ncbyte ncBad_byte = NC_FILL_BYTE;
>                                    ^
> 
> libnetcdf_c++.a(ncvalues.o): In function `NcValues_ncbyte::print( 
> const(std::basic_ostream<char,std::char_traits<char>> &))':
> ncvalues.o(.text+0xb2f): undefined reference to 
> `std::__ls__tm__30_Q2_3std20char_traits__tm__2_c(std::basic_ostream<char,> &, 
> unsigned char)'
> ncvalues.o(.text+0xb65): undefined reference to 
> `std::__ls__tm__30_Q2_3std20char_traits__tm__2_c(std::basic_ostream<char,> &, 
> unsigned char)'
> libnetcdf_c++.a(ncvalues.o): In function `NcValues_char::print( 
> const(std::basic_ostream<char,std::char_traits<char>> &))':
> ncvalues.o(.text+0x13ce): undefined reference to 
> `std::__ls__tm__30_Q2_3std20char_traits__tm__2_c(std::basic_ostream<char,> &, 
> char)'
> ncvalues.o(.text+0x1408): undefined reference to 
> `std::__ls__tm__30_Q2_3std20char_traits__tm__2_c(std::basic_ostream<char,> &, 
> char)'
> ncvalues.o(.text+0x1421): undefined reference to 
> `std::__ls__tm__30_Q2_3std20char_traits__tm__2_c(std::basic_ostream<char,> &, 
> char)'
> make[2]: *** [nctst] Error 2
> make[2]: Leaving directory `/usr/local/src/netcdf/netcdf-3.5.1-beta10/src/cxx'
> make[1]: *** [subdir_target] Error 1
> make[1]: Leaving directory `/usr/local/src/netcdf/netcdf-3.5.1-beta10/src'
> make: *** [cxx/all] Error 2

We installed the Portland Group 4.0 compilers on a Linux 2.4.18-14smp
platform here, and the 3.5.1-beta10 version of netCDF builds and tests
successfully, including the C++ tests.  I also was able to reproduce
the problems you saw with the 3.3 version of PG compilers on another
platform, so this seems to indicate that the problems you saw were
bugs in the PG compilers that have been fixed with the 4.0 release of
the Portland Group products.

For reference, here are the relevant environment variables I used to
build and test netCDF 3.5.1-beta10 with PG 4.0 compilers:

  CC=pgcc
  FC=''
  F90=''
  CXX=pgCC

After the above worked to verify the C and C++ interfaces, I also
tried building the Fortran 77 and Fortran 90 interfaces, with

  CC=pgcc
  CPPFLAGS=-DpgiFortran
  FC='pgf77 -V'
  F90='pgf90 -V'
  CXX=pgCC

and all tests succeeded.  As a result of this testing, I recommend
that you upgrade to Portland Group 4.0 compilers.

--Russ