[MacPorts] #35162: petsc version 3.3 not compatible with slepc version 3.2

[MacPorts]

#35162: petsc version 3.3 not compatible with slepc version 3.2
-------------------------------------------+--------------------------------
  Reporter:  Amy.Troschinetz@…             |       Owner:  mmoll@…           
      Type:  defect                        |      Status:  reopened          
  Priority:  Normal                        |   Milestone:                    
 Component:  ports                         |     Version:  2.1.1             
Resolution:                                |    Keywords:                    
      Port:  slepc, petsc                  |  
-------------------------------------------+--------------------------------
Changes (by Amy.Troschinetz@…):

  * status:  closed => reopened
  * resolution:  fixed =>


Comment:

 Sorry, I was mistaken. I'm still getting errors. Here is a minimal test
 example:

 test.cpp:
 {{{
 #include <slepceps.h>
 int main() { }

 }}}

 Error log, using clang++:
 {{{
 $ /usr/bin/clang++ -D__LITTLE_ENDIAN__ -DMACOSX -DPOSIX
 -I/opt/local/lib/petsc/include -I/opt/local/include/openmpi
 -I/opt/local/include test.cpp
 In file included from test.cpp:1:
 In file included from /opt/local/lib/petsc/include/slepceps.h:26:
 In file included from /opt/local/lib/petsc/include/slepcsys.h:78:
 /opt/local/lib/petsc/include/slepcvec.h:29:1: error: unknown type name
 'PETSC_EXTERN_CXX_BEGIN'
 PETSC_EXTERN_CXX_BEGIN
 ^
 /opt/local/lib/petsc/include/slepcvec.h:33:1: error: expected unqualified-
 id
 extern PetscErrorCode VecRegister_Comp(const char[]);
 ^
 /opt/local/lib/petsc/include/slepcvec.h:52:1: error: unknown type name
 'PETSC_EXTERN_CXX_END'
 PETSC_EXTERN_CXX_END
 ^
 In file included from test.cpp:1:
 In file included from /opt/local/lib/petsc/include/slepceps.h:26:
 In file included from /opt/local/lib/petsc/include/slepcsys.h:82:
 /opt/local/lib/petsc/include/private/slepcimpl.h:28:1: error: expected
 unqualified-id
 struct _n_SlepcConvMonitor {
 ^
 In file included from test.cpp:1:
 In file included from /opt/local/lib/petsc/include/slepceps.h:26:
 /opt/local/lib/petsc/include/slepcsys.h:98:1: error: unknown type name
 'PETSC_EXTERN_CXX_BEGIN'
 PETSC_EXTERN_CXX_BEGIN
 ^
 /opt/local/lib/petsc/include/slepcsys.h:102:1: error: expected
 unqualified-id
 extern PetscErrorCode SlepcInitialize(int*,char***,const char[],const
 char[]);
 ^
 /opt/local/lib/petsc/include/slepcsys.h:165:1: error: unknown type name
 'PETSC_EXTERN_CXX_END'
 PETSC_EXTERN_CXX_END
 ^
 In file included from test.cpp:1:
 In file included from /opt/local/lib/petsc/include/slepceps.h:27:
 In file included from /opt/local/lib/petsc/include/slepcst.h:26:
 In file included from /opt/local/lib/petsc/include/petscksp.h:6:
 In file included from /opt/local/lib/petsc/include/petscpc.h:6:
 /opt/local/lib/petsc/include/petscdm.h:8:1: error: expected unqualified-id
 PETSC_EXTERN PetscErrorCode DMInitializePackage(const char[]);
 ^
 /opt/local/lib/petsc/include/petscsys.h:66:22: note: expanded from macro
 'PETSC_EXTERN'
 #define PETSC_EXTERN extern "C" PETSC_VISIBILITY_PUBLIC
                      ^
 In file included from test.cpp:1:
 In file included from /opt/local/lib/petsc/include/slepceps.h:27:
 /opt/local/lib/petsc/include/slepcst.h:27:1: error: unknown type name
 'PETSC_EXTERN_CXX_BEGIN'
 PETSC_EXTERN_CXX_BEGIN
 ^
 /opt/local/lib/petsc/include/slepcst.h:29:1: error: expected unqualified-
 id
 extern PetscErrorCode STInitializePackage(const char[]);
 ^
 /opt/local/lib/petsc/include/slepcst.h:175:1: error: unknown type name
 'PETSC_EXTERN_CXX_END'
 PETSC_EXTERN_CXX_END
 ^
 In file included from test.cpp:1:
 In file included from /opt/local/lib/petsc/include/slepceps.h:28:
 /opt/local/lib/petsc/include/slepcip.h:25:23: error: expected ';' after
 top level declarator
 PETSC_EXTERN_CXX_BEGIN
                       ^
                       ;
 /opt/local/lib/petsc/include/slepcip.h:149:1: error: unknown type name
 'PETSC_EXTERN_CXX_END'
 PETSC_EXTERN_CXX_END
 ^
 In file included from test.cpp:1:
 /opt/local/lib/petsc/include/slepceps.h:29:23: error: expected ';' after
 top level declarator
 PETSC_EXTERN_CXX_BEGIN
                       ^
                       ;
 /opt/local/lib/petsc/include/slepceps.h:408:1: error: unknown type name
 'PETSC_EXTERN_CXX_END'
 PETSC_EXTERN_CXX_END
 ^
 test.cpp:2:1: error: expected unqualified-id
 int main() { }
 ^
 16 errors generated.
 }}}

 I'm using clang++ here because it seems to generate better error messages,
 however just for sake of completeness here's what g++ generates:
 {{{
 $ /usr/bin/g++ -D__LITTLE_ENDIAN__ -DMACOSX -DPOSIX
 -I/opt/local/lib/petsc/include -I/opt/local/include/openmpi
 -I/opt/local/include test.cpp
 In file included from /opt/local/lib/petsc/include/slepcsys.h:78,
                  from /opt/local/lib/petsc/include/slepceps.h:26,
                  from test.cpp:1:
 /opt/local/lib/petsc/include/slepcvec.h:33: error: expected constructor,
 destructor, or type conversion before ‘extern’
 In file included from /opt/local/lib/petsc/include/slepcsys.h:82,
                  from /opt/local/lib/petsc/include/slepceps.h:26,
                  from test.cpp:1:
 /opt/local/lib/petsc/include/private/slepcimpl.h:28: error: expected
 constructor, destructor, or type conversion before ‘struct’
 In file included from /opt/local/lib/petsc/include/slepceps.h:26,
                  from test.cpp:1:
 /opt/local/lib/petsc/include/slepcsys.h:102: error: expected constructor,
 destructor, or type conversion before ‘extern’
 In file included from /opt/local/lib/petsc/include/petscpc.h:6,
                  from /opt/local/lib/petsc/include/petscksp.h:6,
                  from /opt/local/lib/petsc/include/slepcst.h:26,
                  from /opt/local/lib/petsc/include/slepceps.h:27,
                  from test.cpp:1:
 /opt/local/lib/petsc/include/petscdm.h:8: error: expected constructor,
 destructor, or type conversion before ‘extern’
 In file included from /opt/local/lib/petsc/include/slepceps.h:27,
                  from test.cpp:1:
 /opt/local/lib/petsc/include/slepcst.h:29: error: expected constructor,
 destructor, or type conversion before ‘extern’
 /opt/local/lib/petsc/include/slepcst.h:175: error: ‘PETSC_EXTERN_CXX_END’
 does not name a type
 In file included from /opt/local/lib/petsc/include/slepceps.h:28,
                  from test.cpp:1:
 /opt/local/lib/petsc/include/slepcip.h:149: error: ‘PETSC_EXTERN_CXX_END’
 does not name a type
 test.cpp:2: error: expected constructor, destructor, or type conversion
 before ‘int’
 }}}

 The problem seems to stem from the fact that PETSC_EXTERN_CXX_END is not
 defined. In version 3.3 of PETSc:
 {{{
 $ cd /opt/local/lib/petsc/include
 $ grep -HIin "define PETSC_EXTERN_CXX_BEGIN" *
 # no results
 }}}

 I have a backup on Time Machine of PETSc version 3.2:
 {{{
 $ cd /path/to/time/machine/backups/opt/local/lib/petsc/include
 $ grep -HIin "define PETSC_EXTERN_CXX_BEGIN" *
 petscsys.h:45:#define PETSC_EXTERN_CXX_BEGIN extern "C" {
 petscsys.h:48:#define PETSC_EXTERN_CXX_BEGIN
 }}}

 Note that I am perfectly able to install slepc 3.2-p5 and PETSc 3.3 side
 by side using MacPorts... they're just not compatible with each other so
 when you start trying to use them things break down.

-- 
Ticket URL: <https://trac.macports.org/ticket/35162#comment:5>
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