Check system installation of sundials

[sn248]

Hi

I am trying to update the R interface to Sundials (sn248/sundialr). R package rules dictate that I first check for system installation of sundials before using the bundled-up version.

I was not able to find any information regarding pkg-config for sundials.

Could you suggest how to check if sundials is installed on user's machine?

Thanks

[balos1]

I was not able to find any information regarding pkg-config for sundials.

We do not provide a pkg-config file at this time (see #242).

Could you suggest how to check if sundials is installed on user's machine?

CMake's find_package command is the supported way. Not sure if this possible for you to use in the context of R.

[sn248]

Thank you for the quick response. I used the following to know that SUNDIALS exists.

sudo cmake --find-package -DNAME=SUNDIALS -DCOMPILER_ID=GNU -DLANGUAGE=C -DMODE=EXIST

which gives

SUNDIALS found

But I am not able to get the location of header files and static libraries (in /usr/local/include and /usr/local/lib respectively), when I use the following commands.

sudo cmake --find-package -DNAME=SUNDIALS -DCOMPILER_ID=GNU -DLANGUAGE=C -DMODE=COMPILE

sudo cmake --find-package -DNAME=SUNDIALS -DCOMPILER_ID=GNU -DLANGUAGE=C -DMODE=LINK

In addition, I would also like to check that the installed version is 7.0.0 or higher.

Any suggestion would be very helpful. Thanks!

[balos1]

Sorry, I meant that the supported way is to use the find_package command from a CMakeLists.txt. According to the output of cmake --help though, the --find-package command line option is deprecated (I have never used it either, so I am unsure if it can do what youre asking).

From a CMakeLists.txt you would do

find_package(SUNDIALS)

Then the SUNDIALS::<component> targets would give you the link libraries and include paths. See this part of the docs.

Otherwise, you may need to write some custom script to look for sundials and then parse the SUNDIALSConfig.cmake / SUNDIALSTargets.cmake files to get the includes and link libraries. We have noted that a pkg-config file is a requested feature and hope to add it at some point in the future (we would also happily take a community contribution that does it).

[sn248]

Thanks again! This is helpful although I am not sure how to use a CMakelist.txt within R package to compile using system installation.

Perhaps, I will wait till we get a pkg-config, until then use the current approach of bundling the Sundials source with the package.

[balos1]

OK. I will close this now as a duplicate request for a pkg-config file.