[petsc-users] Autoconf tests

[Julian Andrej]

libMesh provides a m4 test for finding the PETSc library. You can find it here

https://github.com/libMesh/libmesh/blob/master/m4/petsc.m4

On Wed, Oct 12, 2016 at 3:18 PM, jeremy theler <jeremy at seamplex.com> wrote:
> I once made a quick hack, maybe you can start your dirty work from here
>
> https://bitbucket.org/wasora/wasora/src/5a88abbac1a846f2a6ed0b4e585f6f3c0fedf2e7/m4/petsc.m4?at=default&fileviewer=file-view-default
>
> --
> jeremy
>
> On Tue, Oct 11, 2016 at 5:31 PM Barry Smith <bsmith at mcs.anl.gov> wrote:
>>
>>
>>    You don't want to get the debug mode from PETSC_ARCH since there may
>> not be a PETSC_ARCH (for PETSc --prefix installs) or because the user did
>> not put the string in it.  You can check for the PETSC_USE_DEBUG symbol in
>> the petscconf.h file by linking a C program against <petscsys.h> and #if
>> defined(PETSC_USE_DEBUG).
>>
>>
>>    Barry
>>
>> > On Oct 11, 2016, at 3:12 PM, CLAUS HELLMUTH WARNER HETZER
>> > <claus at olemiss.edu> wrote:
>> >
>> > Hi everybody-
>> >
>> > Figured I’d ask this here before I go reinventing the wheel.
>> >
>> > I’m writing an autoconf installer (the standard Linux configure/make
>> > package) for an acoustic wave propagation modeling package that builds PETSc
>> > and SLEPc as part of the installation process.  I’d like to be able to test
>> > for instances of PETSc already being installed on the user’s machine and, if
>> > possible, whether they’re the debug version.  I know I can check for the
>> > existence of the PETSC_DIR environmental variable, and parse the PETSC_ARCH
>> > variable for “debug”, and I’ll do that as a first pass, but has anybody
>> > written any M4 tests that are more reliable than those (i.e. actually
>> > attempting to link to the libraries)?  I had one user who had the libraries
>> > installed in /usr/local/bin but didn’t have the environmental variables set
>> > in their profile, so the linker was confused and it took a while to figure
>> > out what was going weird with the install.
>> >
>> > If not, I guess I’ll be putting on my Autoconf gloves and getting my
>> > hands dirty.
>> >
>> > Thanks
>> > -Claus Hetzer
>> >
>> > ------------------
>> > Claus Hetzer
>> > Senior Research and Development Engineer
>> > National Center for Physical Acoustics
>> > The University of Mississippi
>> > 145 Hill Drive
>> > PO Box 1848
>> > University, MS 38677
>> > claus at olemiss.edu
>> >
>> >
>> >
>> >
>> >
>>
>