Hi Chris, Thanks for your bug report and workaround! I've created a Jira issue tracking report with the details you provided, as well as a link to the patch for the generated libtool that you created as a workaround: https://bugtracking.unidata.ucar.edu/browse/NCXXF-11 For now, I hope that will help other users find your solution in case they who encounter the same problem. --Russ > There appears to be some kind of problem in the NetCDF-cxx4 build system when > using PGI and mvapich2 to link against a NetCDF 4.3.0 that was built with > --enable-parallel-test. I am using the latest stable release (4.2.1) of > NetCDF-cxx4, PGI versions 12.5-0 and/or 13.2-0, and mvapich2 version 1.8. I > can configure and build NetCDF-cxx4 using a NetCDF that was built either with > or without parallel support using the Intel compilers. And I can configure > and build NetCDF-cxx4 with PGI for a non-parallel build. To be specific, the > problem is that the build refuses to produce a shared library for NetCDF-cxx4 > when using mpicxx (MPI wrapper for pgCC) for the C++ compiler. > > The problem seems to be that, for whatever reason, it does not know how to > correctly recognize/test for shared library. The libtool that is generated > won't create the shared library for NetCDF-cxx4 but the "configure" and > "make" steps do run fine and produce a static library. The "make check" then > fails because it tries to link to a non-existent shared library. > > I have been able to work around this problem for now by applying the > following patch to the libtool that is generated when configuring > NetCDF-cxx4, but am wondering if there might be some underlying problem that > needs fixing. Applying that patch allows "make" and "make check" to work > without generating errors. > > While I did do quite a lot of searching for other reports of this problem I > did not find anything. Any advice or comments regarding the appropriateness > of my libtool patch or a better solution would be much appreciated. > > > --- build/netcdf-cxx4-mvapich2/4.2.1/pgi/12.5-0/mvapich2/1.8/libtool > 2014-01-10 20:01:32.000000000 +0000 > +++ build/netcdf-cxx4/4.2.1/pgi/12.5-0/libtool 2014-01-10 > 20:19:33.000000000 +0000 > @@ -332,7 +332,7 @@ > export_dynamic_flag_spec="\${wl}--export-dynamic" > > # Compiler flag to generate shared objects directly from archives. > -whole_archive_flag_spec="\${wl}--whole-archive\$convenience > \${wl}--no-whole-archive" > +whole_archive_flag_spec="\${wl}--whole-archive\`for conv in > \$convenience\\\"\\\"; do test -n \\\"\$conv\\\" && > new_convenience=\\\"\$new_convenience,\$conv\\\"; done; func_echo_all > \\\"\$new_convenience\\\"\` \${wl}--no-whole-archive" > > # Whether the compiler copes with passing no objects directly. > compiler_needs_object="no" > @@ -10113,10 +10113,10 @@ > no_builtin_flag="" > > # Additional compiler flags for building library objects. > -pic_flag=" -DPIC" > +pic_flag=" -fpic -DPIC" > > # How to pass a linker flag through the compiler. > -wl="" > +wl="-Wl," > > # Compiler flag to prevent dynamic linking. > link_static_flag="" > @@ -10131,10 +10131,10 @@ > allow_libtool_libs_with_static_runtimes=no > > # Compiler flag to allow reflexive dlopens. > -export_dynamic_flag_spec="" > +export_dynamic_flag_spec="\${wl}--export-dynamic" > > # Compiler flag to generate shared objects directly from archives. > -whole_archive_flag_spec="" > +whole_archive_flag_spec="\${wl}--whole-archive\`for conv in > \$convenience\\\"\\\"; do test -n \\\"\$conv\\\" && > new_convenience=\\\"\$new_convenience,\$conv\\\"; done; func_echo_all > \\\"\$new_convenience\\\"\` \${wl}--no-whole-archive" > > # Whether the compiler copes with passing no objects directly. > compiler_needs_object="no" > @@ -10146,8 +10146,8 @@ > old_archive_from_expsyms_cmds="" > > # Commands used to build a shared archive. > -archive_cmds="" > -archive_expsym_cmds="" > +archive_cmds="\$CC -shared \$pic_flag \$predep_objects \$libobjs \$deplibs > \$postdep_objects \$compiler_flags \${wl}-soname \${wl}\$soname -o \$lib" > +archive_expsym_cmds="\$CC -shared \$pic_flag \$predep_objects \$libobjs > \$deplibs \$postdep_objects \$compiler_flags \${wl}-soname \${wl}\$soname > \${wl}-retain-symbols-file \${wl}\$export_symbols -o \$lib" > > # Commands used to build a loadable module if different from building > # a shared archive. > @@ -10165,7 +10165,7 @@ > > # Flag to hardcode $libdir into a binary during linking. > # This must work even if $libdir does not exist > -hardcode_libdir_flag_spec="" > +hardcode_libdir_flag_spec="\${wl}--rpath \${wl}\$libdir" > > # Whether we need a single "-rpath" flag with a separated argument. > hardcode_libdir_separator="" > @@ -10222,7 +10222,7 @@ > file_list_spec="" > > # How to hardcode a shared library path into an executable. > -hardcode_action=unsupported > +hardcode_action=immediate > > # The directories searched by this compiler when creating a shared library. > compiler_lib_search_dirs="" > > ## End of patch > > > > Thank you for your consideration, > > > Chris > ----------------------------------------------------------------------------------------------------------- > Christopher W. Harrop email: address@hidden > Global Systems Division > voice: (303) 497-6808 > NOAA Earth System Research Laboratory fax: > (303) 497-7259 > 325 Broadway R/GSD2 > Boulder, CO 80303 > > > Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: PQU-107704 Department: Support netCDF Priority: High Status: Closed
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