[petsc-dev] Why is -I$PETSC_DIR/src/dm/mesh/sieve in CLINKER even when configured without Sieve?

Barry Smith bsmith at mcs.anl.gov
Tue Oct 12 16:41:37 CDT 2010

  One of the reasons for the repetitive -I and -L stuff in PETSc make lines is that in conf/variables we constructed some variables by adding two variables together that each individually had duplicates eliminated but the result did not have duplicates eliminated.

  I have moved this concatenation of variables back to PETSc/Configure.py so that the duplicates can be eliminated. Specifically this basically means merging the PACKAGES_LIBS and PACKAGES_INCLUDES with the basic libs and and includes before dumping to the conf/variables file

  As always there are likely to be problems crop up with some cases, maybe with shared libraries, with --prefix builds etc. Please report problems to petsc-maint at mcs.anl.gov


More cleanup could be done to eliminate information on individual packages from going into petscvariables etc

On Oct 12, 2010, at 1:18 PM, Jed Brown wrote:
>> On Oct 12, 2010 6:48 PM, "Satish Balay" <balay at mcs.anl.gov> wrote:
>> On Tue, 12 Oct 2010, Jed Brown wrote:
>> > This also isn't specific to me, every one of your configure.logs is equally
>> > relevant. I get Sat...
>> One more case: where one uses diferent version of gcc vs gfortran [or
>> g77] - or one of these are installed in a different location.
>> For eg: on Mac - gfortran paths are totally different than gcc paths.
>> > So unless someone writes a special case for matching vendors, these
>> > paths will always exist. ...
>> We've always maintained that one should configure/rebild after
>> changing any parameters. So compiler version upgrade is one
>> such. [yeah lot of changes usually work, but the ones that don't work
>> -generate petsc-maint requests. Also if this is truly an issue - then
>> I think the following [with the correct minima LIBS option] is a
>> workarround for such folks - so the situation isn't too bad..
>> '--with-clib-autodetect=0 --with-fortranlib-autodetect=0 --with-cxxlib-autodetect=0 LIBS=-lgfortran...
>> Satish

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