build error

[kigawas]

Compiling class_group v0.1.4 (/home/kigawas/class-groups)
error: failed to run custom build command for `class_group v0.1.4 (/home/kigawas/class-groups)`

Caused by:
  process didn't exit successfully: `/home/kigawas/class-groups/target/debug/build/class_group-92000dd62ca4c66a/build-script-build` (exit code: 101)
--- stderr
wrapper.h:2:10: fatal error: 'pari/pari.h' file not found
wrapper.h:2:10: fatal error: 'pari/pari.h' file not found, err: true
thread 'main' panicked at 'Unable to generate bindings: ()', src/libcore/result.rs:1084:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

ubuntu 18.04, llvm 8

[omershlo]

Can you check what is the path of your pari.h file please?

[kigawas]

in which folder? I only see it in pari-2.11.2/src/headers/

[omershlo]

the code suppose to first install Pari library on your machine, this results among other things with the pari.h file in one of the OS path for include files.
for example on my mac, The OS knows to look in /usr/local/include. There it will find a folder name pari and inside of it there's pari.h.

Can you make sure that in your "include" path there's pari/pari.h and if not - find where it was installed and add it to your global variables ?

[kigawas]

Bindgen is searching

clang_args: ["-isystem", "/usr/local/include", "-isystem", "/usr/lib/clang/8.0.1/include", "-isystem", "/usr/include/x86_64-linux-gnu", "-isystem", "/usr/include"], input_header: Some("wrapper.h"),

But none of them has a pari folder

[kigawas]

And didn't find clues in makefiles. Do you know where it's installed by default?

[omershlo]

can you run a find command to see where pari.h is located ?
also: please check you have libpari file.
(make sure Pari is installed: check that Pari was installed. https://pari.math.u-bordeaux.fr/pub/pari/manuals/2.11.1/users.pdf appendix A: I think running gp should verify it)

[kigawas]

libpari is in ./depend/pari-2.11.2/Olinux-x86_64/
gp is in ./depend/pari-2.11.2/

[kigawas]

didn't see pari.h

[omershlo]

so it means it was never installed on your machine. That's weird. Can you maybe try to install it manually - see if there's any errors in the process?
inside depend/pari-2.11.2 run ./Configure
then make all
then make install-lib-sta

[kigawas]

need to sudo make install first

it's related with permission, can there be an option to install to ~/.local/?

[omershlo]

ok, so sudo is the issue, make sense.
Any idea how to solve it without asking to put your password?

[kigawas]

It depends on the user, if it's set without password, it won't ask, otherwise you'll need to input password

About how to configure it, see https://askubuntu.com/questions/147241/execute-sudo-without-password